Internet Engineering Task Force (IETF) M. Thomson
Request for Comments: 8448 Mozilla
Category: Informational January 2019
ISSN: 2070-1721
Example Handshake Traces for TLS 1.3
Abstract
This document includes examples of TLS 1.3 handshakes. Private keys
and inputs are provided so that these handshakes might be reproduced.
Intermediate values, including secrets, traffic keys, and IVs, are
shown so that implementations might be checked incrementally against
these values.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Not all documents
approved by the IESG are candidates for any level of Internet
Standard; see Section 2 of RFC 7841.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
https://www.rfc-editor.org/info/rfc8448.
Copyright Notice
Copyright (c) 2019 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of
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the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Thomson Informational [Page 1]
RFC 8448 TLS 1.3 Traces January 2019
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Private Keys . . . . . . . . . . . . . . . . . . . . . . . . 2
3. Simple 1-RTT Handshake . . . . . . . . . . . . . . . . . . . 3
4. Resumed 0-RTT Handshake . . . . . . . . . . . . . . . . . . . 16
5. HelloRetryRequest . . . . . . . . . . . . . . . . . . . . . . 29
6. Client Authentication . . . . . . . . . . . . . . . . . . . . 43
7. Compatibility Mode . . . . . . . . . . . . . . . . . . . . . 55
8. Security Considerations . . . . . . . . . . . . . . . . . . . 67
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 67
10. References . . . . . . . . . . . . . . . . . . . . . . . . . 67
10.1. Normative References . . . . . . . . . . . . . . . . . . 67
10.2. Informative References . . . . . . . . . . . . . . . . . 67
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 68
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 68
1. Introduction
TLS 1.3 [TLS13] defines a new key schedule and a number of new
cryptographic operations. This document includes sample handshakes
that show all intermediate values. This allows an implementation to
be verified incrementally, examining inputs and outputs of each
cryptographic computation independently.
A private key is included with the traces so that implementations can
be checked by importing these values and verifying that the same
outputs are produced.
Note: Invocations of HMAC-based Extract-and-Expand Key Derivation
Function (HKDF) [RFC5869] are not labeled, but they can be
identified through the use of the labels used by HKDF.
2. Private Keys
Ephemeral private keys are shown as they are generated in the traces.
The server in most examples uses an RSA certificate with a private
key of:
modulus (public): b4 bb 49 8f 82 79 30 3d 98 08 36 39 9b 36 c6 98 8c
0c 68 de 55 e1 bd b8 26 d3 90 1a 24 61 ea fd 2d e4 9a 91 d0 15 ab
bc 9a 95 13 7a ce 6c 1a f1 9e aa 6a f9 8c 7c ed 43 12 09 98 e1 87
a8 0e e0 cc b0 52 4b 1b 01 8c 3e 0b 63 26 4d 44 9a 6d 38 e2 2a 5f
da 43 08 46 74 80 30 53 0e f0 46 1c 8c a9 d9 ef bf ae 8e a6 d1 d0
3e 2b d1 93 ef f0 ab 9a 80 02 c4 74 28 a6 d3 5a 8d 88 d7 9f 7f 1e
3f
Thomson Informational [Page 2]
RFC 8448 TLS 1.3 Traces January 2019
public exponent: 01 00 01
private exponent: 04 de a7 05 d4 3a 6e a7 20 9d d8 07 21 11 a8 3c 81
e3 22 a5 92 78 b3 34 80 64 1e af 7c 0a 69 85 b8 e3 1c 44 f6 de 62
e1 b4 c2 30 9f 61 26 e7 7b 7c 41 e9 23 31 4b bf a3 88 13 05 dc 12
17 f1 6c 81 9c e5 38 e9 22 f3 69 82 8d 0e 57 19 5d 8c 84 88 46 02
07 b2 fa a7 26 bc f7 08 bb d7 db 7f 67 9f 89 34 92 fc 2a 62 2e 08
97 0a ac 44 1c e4 e0 c3 08 8d f2 5a e6 79 23 3d f8 a3 bd a2 ff 99
41
prime1: e4 35 fb 7c c8 37 37 75 6d ac ea 96 ab 7f 59 a2 cc 10 69 db
7d eb 19 0e 17 e3 3a 53 2b 27 3f 30 a3 27 aa 0a aa bc 58 cd 67 46
6a f9 84 5f ad c6 75 fe 09 4a f9 2c 4b d1 f2 c1 bc 33 dd 2e 05 15
prime2: ca bd 3b c0 e0 43 86 64 c8 d4 cc 9f 99 97 7a 94 d9 bb fe ad
8e 43 87 0a ba e3 f7 eb 8b 4e 0e ee 8a f1 d9 b4 71 9b a6 19 6c f2
cb ba ee eb f8 b3 49 0a fe 9e 9f fa 74 a8 8a a5 1f c6 45 62 93 03
exponent1: 3f 57 34 5c 27 fe 1b 68 7e 6e 76 16 27 b7 8b 1b 82 64 33
dd 76 0f a0 be a6 a6 ac f3 94 90 aa 1b 47 cd a4 86 9d 68 f5 84 dd
5b 50 29 bd 32 09 3b 82 58 66 1f e7 15 02 5e 5d 70 a4 5a 08 d3 d3
19
exponent2: 18 3d a0 13 63 bd 2f 28 85 ca cb dc 99 64 bf 47 64 f1 51
76 36 f8 64 01 28 6f 71 89 3c 52 cc fe 40 a6 c2 3d 0d 08 6b 47 c6
fb 10 d8 fd 10 41 e0 4d ef 7e 9a 40 ce 95 7c 41 77 94 e1 04 12 d1
39
coefficient: 83 9c a9 a0 85 e4 28 6b 2c 90 e4 66 99 7a 2c 68 1f 21
33 9a a3 47 78 14 e4 de c1 18 33 05 0e d5 0d d1 3c c0 38 04 8a 43
c5 9b 2a cc 41 68 89 c0 37 66 5f e5 af a6 05 96 9f 8c 01 df a5 ca
96 9d
3. Simple 1-RTT Handshake
In this example, the simplest possible handshake is completed. The
server is authenticated, but the client remains anonymous. After
connecting, a few application data octets are exchanged. The server
sends a session ticket that permits the use of 0-RTT data in any
resumed session.
{client} create an ephemeral x25519 key pair:
private key (32 octets): 49 af 42 ba 7f 79 94 85 2d 71 3e f2 78
4b cb ca a7 91 1d e2 6a dc 56 42 cb 63 45 40 e7 ea 50 05
public key (32 octets): 99 38 1d e5 60 e4 bd 43 d2 3d 8e 43 5a 7d
ba fe b3 c0 6e 51 c1 3c ae 4d 54 13 69 1e 52 9a af 2c
Thomson Informational [Page 3]
RFC 8448 TLS 1.3 Traces January 2019
{client} construct a ClientHello handshake message:
ClientHello (196 octets): 01 00 00 c0 03 03 cb 34 ec b1 e7 81 63
ba 1c 38 c6 da cb 19 6a 6d ff a2 1a 8d 99 12 ec 18 a2 ef 62 83
02 4d ec e7 00 00 06 13 01 13 03 13 02 01 00 00 91 00 00 00 0b
00 09 00 00 06 73 65 72 76 65 72 ff 01 00 01 00 00 0a 00 14 00
12 00 1d 00 17 00 18 00 19 01 00 01 01 01 02 01 03 01 04 00 23
00 00 00 33 00 26 00 24 00 1d 00 20 99 38 1d e5 60 e4 bd 43 d2
3d 8e 43 5a 7d ba fe b3 c0 6e 51 c1 3c ae 4d 54 13 69 1e 52 9a
af 2c 00 2b 00 03 02 03 04 00 0d 00 20 00 1e 04 03 05 03 06 03
02 03 08 04 08 05 08 06 04 01 05 01 06 01 02 01 04 02 05 02 06
02 02 02 00 2d 00 02 01 01 00 1c 00 02 40 01
{client} send handshake record:
payload (196 octets): 01 00 00 c0 03 03 cb 34 ec b1 e7 81 63 ba
1c 38 c6 da cb 19 6a 6d ff a2 1a 8d 99 12 ec 18 a2 ef 62 83 02
4d ec e7 00 00 06 13 01 13 03 13 02 01 00 00 91 00 00 00 0b 00
09 00 00 06 73 65 72 76 65 72 ff 01 00 01 00 00 0a 00 14 00 12
00 1d 00 17 00 18 00 19 01 00 01 01 01 02 01 03 01 04 00 23 00
00 00 33 00 26 00 24 00 1d 00 20 99 38 1d e5 60 e4 bd 43 d2 3d
8e 43 5a 7d ba fe b3 c0 6e 51 c1 3c ae 4d 54 13 69 1e 52 9a af
2c 00 2b 00 03 02 03 04 00 0d 00 20 00 1e 04 03 05 03 06 03 02
03 08 04 08 05 08 06 04 01 05 01 06 01 02 01 04 02 05 02 06 02
02 02 00 2d 00 02 01 01 00 1c 00 02 40 01
complete record (201 octets): 16 03 01 00 c4 01 00 00 c0 03 03 cb
34 ec b1 e7 81 63 ba 1c 38 c6 da cb 19 6a 6d ff a2 1a 8d 99 12
ec 18 a2 ef 62 83 02 4d ec e7 00 00 06 13 01 13 03 13 02 01 00
00 91 00 00 00 0b 00 09 00 00 06 73 65 72 76 65 72 ff 01 00 01
00 00 0a 00 14 00 12 00 1d 00 17 00 18 00 19 01 00 01 01 01 02
01 03 01 04 00 23 00 00 00 33 00 26 00 24 00 1d 00 20 99 38 1d
e5 60 e4 bd 43 d2 3d 8e 43 5a 7d ba fe b3 c0 6e 51 c1 3c ae 4d
54 13 69 1e 52 9a af 2c 00 2b 00 03 02 03 04 00 0d 00 20 00 1e
04 03 05 03 06 03 02 03 08 04 08 05 08 06 04 01 05 01 06 01 02
01 04 02 05 02 06 02 02 02 00 2d 00 02 01 01 00 1c 00 02 40 01
{server} extract secret "early":
salt: 0 (all zero octets)
IKM (32 octets): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
secret (32 octets): 33 ad 0a 1c 60 7e c0 3b 09 e6 cd 98 93 68 0c
e2 10 ad f3 00 aa 1f 26 60 e1 b2 2e 10 f1 70 f9 2a
Thomson Informational [Page 4]
RFC 8448 TLS 1.3 Traces January 2019
{server} create an ephemeral x25519 key pair:
private key (32 octets): b1 58 0e ea df 6d d5 89 b8 ef 4f 2d 56
52 57 8c c8 10 e9 98 01 91 ec 8d 05 83 08 ce a2 16 a2 1e
public key (32 octets): c9 82 88 76 11 20 95 fe 66 76 2b db f7 c6
72 e1 56 d6 cc 25 3b 83 3d f1 dd 69 b1 b0 4e 75 1f 0f
{server} construct a ServerHello handshake message:
ServerHello (90 octets): 02 00 00 56 03 03 a6 af 06 a4 12 18 60
dc 5e 6e 60 24 9c d3 4c 95 93 0c 8a c5 cb 14 34 da c1 55 77 2e
d3 e2 69 28 00 13 01 00 00 2e 00 33 00 24 00 1d 00 20 c9 82 88
76 11 20 95 fe 66 76 2b db f7 c6 72 e1 56 d6 cc 25 3b 83 3d f1
dd 69 b1 b0 4e 75 1f 0f 00 2b 00 02 03 04
{server} derive secret for handshake "tls13 derived":
PRK (32 octets): 33 ad 0a 1c 60 7e c0 3b 09 e6 cd 98 93 68 0c e2
10 ad f3 00 aa 1f 26 60 e1 b2 2e 10 f1 70 f9 2a
hash (32 octets): e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24
27 ae 41 e4 64 9b 93 4c a4 95 99 1b 78 52 b8 55
info (49 octets): 00 20 0d 74 6c 73 31 33 20 64 65 72 69 76 65 64
20 e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24 27 ae 41 e4
64 9b 93 4c a4 95 99 1b 78 52 b8 55
expanded (32 octets): 6f 26 15 a1 08 c7 02 c5 67 8f 54 fc 9d ba
b6 97 16 c0 76 18 9c 48 25 0c eb ea c3 57 6c 36 11 ba
{server} extract secret "handshake":
salt (32 octets): 6f 26 15 a1 08 c7 02 c5 67 8f 54 fc 9d ba b6 97
16 c0 76 18 9c 48 25 0c eb ea c3 57 6c 36 11 ba
IKM (32 octets): 8b d4 05 4f b5 5b 9d 63 fd fb ac f9 f0 4b 9f 0d
35 e6 d6 3f 53 75 63 ef d4 62 72 90 0f 89 49 2d
secret (32 octets): 1d c8 26 e9 36 06 aa 6f dc 0a ad c1 2f 74 1b
01 04 6a a6 b9 9f 69 1e d2 21 a9 f0 ca 04 3f be ac
{server} derive secret "tls13 c hs traffic":
PRK (32 octets): 1d c8 26 e9 36 06 aa 6f dc 0a ad c1 2f 74 1b 01
04 6a a6 b9 9f 69 1e d2 21 a9 f0 ca 04 3f be ac
Thomson Informational [Page 5]
RFC 8448 TLS 1.3 Traces January 2019
hash (32 octets): 86 0c 06 ed c0 78 58 ee 8e 78 f0 e7 42 8c 58 ed
d6 b4 3f 2c a3 e6 e9 5f 02 ed 06 3c f0 e1 ca d8
info (54 octets): 00 20 12 74 6c 73 31 33 20 63 20 68 73 20 74 72
61 66 66 69 63 20 86 0c 06 ed c0 78 58 ee 8e 78 f0 e7 42 8c 58
ed d6 b4 3f 2c a3 e6 e9 5f 02 ed 06 3c f0 e1 ca d8
expanded (32 octets): b3 ed db 12 6e 06 7f 35 a7 80 b3 ab f4 5e
2d 8f 3b 1a 95 07 38 f5 2e 96 00 74 6a 0e 27 a5 5a 21
{server} derive secret "tls13 s hs traffic":
PRK (32 octets): 1d c8 26 e9 36 06 aa 6f dc 0a ad c1 2f 74 1b 01
04 6a a6 b9 9f 69 1e d2 21 a9 f0 ca 04 3f be ac
hash (32 octets): 86 0c 06 ed c0 78 58 ee 8e 78 f0 e7 42 8c 58 ed
d6 b4 3f 2c a3 e6 e9 5f 02 ed 06 3c f0 e1 ca d8
info (54 octets): 00 20 12 74 6c 73 31 33 20 73 20 68 73 20 74 72
61 66 66 69 63 20 86 0c 06 ed c0 78 58 ee 8e 78 f0 e7 42 8c 58
ed d6 b4 3f 2c a3 e6 e9 5f 02 ed 06 3c f0 e1 ca d8
expanded (32 octets): b6 7b 7d 69 0c c1 6c 4e 75 e5 42 13 cb 2d
37 b4 e9 c9 12 bc de d9 10 5d 42 be fd 59 d3 91 ad 38
{server} derive secret for master "tls13 derived":
PRK (32 octets): 1d c8 26 e9 36 06 aa 6f dc 0a ad c1 2f 74 1b 01
04 6a a6 b9 9f 69 1e d2 21 a9 f0 ca 04 3f be ac
hash (32 octets): e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24
27 ae 41 e4 64 9b 93 4c a4 95 99 1b 78 52 b8 55
info (49 octets): 00 20 0d 74 6c 73 31 33 20 64 65 72 69 76 65 64
20 e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24 27 ae 41 e4
64 9b 93 4c a4 95 99 1b 78 52 b8 55
expanded (32 octets): 43 de 77 e0 c7 77 13 85 9a 94 4d b9 db 25
90 b5 31 90 a6 5b 3e e2 e4 f1 2d d7 a0 bb 7c e2 54 b4
{server} extract secret "master":
salt (32 octets): 43 de 77 e0 c7 77 13 85 9a 94 4d b9 db 25 90 b5
31 90 a6 5b 3e e2 e4 f1 2d d7 a0 bb 7c e2 54 b4
IKM (32 octets): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Thomson Informational [Page 6]
RFC 8448 TLS 1.3 Traces January 2019
secret (32 octets): 18 df 06 84 3d 13 a0 8b f2 a4 49 84 4c 5f 8a
47 80 01 bc 4d 4c 62 79 84 d5 a4 1d a8 d0 40 29 19
{server} send handshake record:
payload (90 octets): 02 00 00 56 03 03 a6 af 06 a4 12 18 60 dc 5e
6e 60 24 9c d3 4c 95 93 0c 8a c5 cb 14 34 da c1 55 77 2e d3 e2
69 28 00 13 01 00 00 2e 00 33 00 24 00 1d 00 20 c9 82 88 76 11
20 95 fe 66 76 2b db f7 c6 72 e1 56 d6 cc 25 3b 83 3d f1 dd 69
b1 b0 4e 75 1f 0f 00 2b 00 02 03 04
complete record (95 octets): 16 03 03 00 5a 02 00 00 56 03 03 a6
af 06 a4 12 18 60 dc 5e 6e 60 24 9c d3 4c 95 93 0c 8a c5 cb 14
34 da c1 55 77 2e d3 e2 69 28 00 13 01 00 00 2e 00 33 00 24 00
1d 00 20 c9 82 88 76 11 20 95 fe 66 76 2b db f7 c6 72 e1 56 d6
cc 25 3b 83 3d f1 dd 69 b1 b0 4e 75 1f 0f 00 2b 00 02 03 04
{server} derive write traffic keys for handshake data:
PRK (32 octets): b6 7b 7d 69 0c c1 6c 4e 75 e5 42 13 cb 2d 37 b4
e9 c9 12 bc de d9 10 5d 42 be fd 59 d3 91 ad 38
key info (13 octets): 00 10 09 74 6c 73 31 33 20 6b 65 79 00
key expanded (16 octets): 3f ce 51 60 09 c2 17 27 d0 f2 e4 e8 6e
e4 03 bc
iv info (12 octets): 00 0c 08 74 6c 73 31 33 20 69 76 00
iv expanded (12 octets): 5d 31 3e b2 67 12 76 ee 13 00 0b 30
{server} construct an EncryptedExtensions handshake message:
EncryptedExtensions (40 octets): 08 00 00 24 00 22 00 0a 00 14 00
12 00 1d 00 17 00 18 00 19 01 00 01 01 01 02 01 03 01 04 00 1c
00 02 40 01 00 00 00 00
{server} construct a Certificate handshake message:
Certificate (445 octets): 0b 00 01 b9 00 00 01 b5 00 01 b0 30 82
01 ac 30 82 01 15 a0 03 02 01 02 02 01 02 30 0d 06 09 2a 86 48
86 f7 0d 01 01 0b 05 00 30 0e 31 0c 30 0a 06 03 55 04 03 13 03
72 73 61 30 1e 17 0d 31 36 30 37 33 30 30 31 32 33 35 39 5a 17
0d 32 36 30 37 33 30 30 31 32 33 35 39 5a 30 0e 31 0c 30 0a 06
03 55 04 03 13 03 72 73 61 30 81 9f 30 0d 06 09 2a 86 48 86 f7
0d 01 01 01 05 00 03 81 8d 00 30 81 89 02 81 81 00 b4 bb 49 8f
82 79 30 3d 98 08 36 39 9b 36 c6 98 8c 0c 68 de 55 e1 bd b8 26
d3 90 1a 24 61 ea fd 2d e4 9a 91 d0 15 ab bc 9a 95 13 7a ce 6c
Thomson Informational [Page 7]
RFC 8448 TLS 1.3 Traces January 2019
1a f1 9e aa 6a f9 8c 7c ed 43 12 09 98 e1 87 a8 0e e0 cc b0 52
4b 1b 01 8c 3e 0b 63 26 4d 44 9a 6d 38 e2 2a 5f da 43 08 46 74
80 30 53 0e f0 46 1c 8c a9 d9 ef bf ae 8e a6 d1 d0 3e 2b d1 93
ef f0 ab 9a 80 02 c4 74 28 a6 d3 5a 8d 88 d7 9f 7f 1e 3f 02 03
01 00 01 a3 1a 30 18 30 09 06 03 55 1d 13 04 02 30 00 30 0b 06
03 55 1d 0f 04 04 03 02 05 a0 30 0d 06 09 2a 86 48 86 f7 0d 01
01 0b 05 00 03 81 81 00 85 aa d2 a0 e5 b9 27 6b 90 8c 65 f7 3a
72 67 17 06 18 a5 4c 5f 8a 7b 33 7d 2d f7 a5 94 36 54 17 f2 ea
e8 f8 a5 8c 8f 81 72 f9 31 9c f3 6b 7f d6 c5 5b 80 f2 1a 03 01
51 56 72 60 96 fd 33 5e 5e 67 f2 db f1 02 70 2e 60 8c ca e6 be
c1 fc 63 a4 2a 99 be 5c 3e b7 10 7c 3c 54 e9 b9 eb 2b d5 20 3b
1c 3b 84 e0 a8 b2 f7 59 40 9b a3 ea c9 d9 1d 40 2d cc 0c c8 f8
96 12 29 ac 91 87 b4 2b 4d e1 00 00
{server} construct a CertificateVerify handshake message:
CertificateVerify (136 octets): 0f 00 00 84 08 04 00 80 5a 74 7c
5d 88 fa 9b d2 e5 5a b0 85 a6 10 15 b7 21 1f 82 4c d4 84 14 5a
b3 ff 52 f1 fd a8 47 7b 0b 7a bc 90 db 78 e2 d3 3a 5c 14 1a 07
86 53 fa 6b ef 78 0c 5e a2 48 ee aa a7 85 c4 f3 94 ca b6 d3 0b
be 8d 48 59 ee 51 1f 60 29 57 b1 54 11 ac 02 76 71 45 9e 46 44
5c 9e a5 8c 18 1e 81 8e 95 b8 c3 fb 0b f3 27 84 09 d3 be 15 2a
3d a5 04 3e 06 3d da 65 cd f5 ae a2 0d 53 df ac d4 2f 74 f3
{server} calculate finished "tls13 finished":
PRK (32 octets): b6 7b 7d 69 0c c1 6c 4e 75 e5 42 13 cb 2d 37 b4
e9 c9 12 bc de d9 10 5d 42 be fd 59 d3 91 ad 38
hash (0 octets): (empty)
info (18 octets): 00 20 0e 74 6c 73 31 33 20 66 69 6e 69 73 68 65
64 00
expanded (32 octets): 00 8d 3b 66 f8 16 ea 55 9f 96 b5 37 e8 85
c3 1f c0 68 bf 49 2c 65 2f 01 f2 88 a1 d8 cd c1 9f c8
finished (32 octets): 9b 9b 14 1d 90 63 37 fb d2 cb dc e7 1d f4
de da 4a b4 2c 30 95 72 cb 7f ff ee 54 54 b7 8f 07 18
{server} construct a Finished handshake message:
Finished (36 octets): 14 00 00 20 9b 9b 14 1d 90 63 37 fb d2 cb
dc e7 1d f4 de da 4a b4 2c 30 95 72 cb 7f ff ee 54 54 b7 8f 07
18
Thomson Informational [Page 8]
RFC 8448 TLS 1.3 Traces January 2019
{server} send handshake record:
payload (657 octets): 08 00 00 24 00 22 00 0a 00 14 00 12 00 1d
00 17 00 18 00 19 01 00 01 01 01 02 01 03 01 04 00 1c 00 02 40
01 00 00 00 00 0b 00 01 b9 00 00 01 b5 00 01 b0 30 82 01 ac 30
82 01 15 a0 03 02 01 02 02 01 02 30 0d 06 09 2a 86 48 86 f7 0d
01 01 0b 05 00 30 0e 31 0c 30 0a 06 03 55 04 03 13 03 72 73 61
30 1e 17 0d 31 36 30 37 33 30 30 31 32 33 35 39 5a 17 0d 32 36
30 37 33 30 30 31 32 33 35 39 5a 30 0e 31 0c 30 0a 06 03 55 04
03 13 03 72 73 61 30 81 9f 30 0d 06 09 2a 86 48 86 f7 0d 01 01
01 05 00 03 81 8d 00 30 81 89 02 81 81 00 b4 bb 49 8f 82 79 30
3d 98 08 36 39 9b 36 c6 98 8c 0c 68 de 55 e1 bd b8 26 d3 90 1a
24 61 ea fd 2d e4 9a 91 d0 15 ab bc 9a 95 13 7a ce 6c 1a f1 9e
aa 6a f9 8c 7c ed 43 12 09 98 e1 87 a8 0e e0 cc b0 52 4b 1b 01
8c 3e 0b 63 26 4d 44 9a 6d 38 e2 2a 5f da 43 08 46 74 80 30 53
0e f0 46 1c 8c a9 d9 ef bf ae 8e a6 d1 d0 3e 2b d1 93 ef f0 ab
9a 80 02 c4 74 28 a6 d3 5a 8d 88 d7 9f 7f 1e 3f 02 03 01 00 01
a3 1a 30 18 30 09 06 03 55 1d 13 04 02 30 00 30 0b 06 03 55 1d
0f 04 04 03 02 05 a0 30 0d 06 09 2a 86 48 86 f7 0d 01 01 0b 05
00 03 81 81 00 85 aa d2 a0 e5 b9 27 6b 90 8c 65 f7 3a 72 67 17
06 18 a5 4c 5f 8a 7b 33 7d 2d f7 a5 94 36 54 17 f2 ea e8 f8 a5
8c 8f 81 72 f9 31 9c f3 6b 7f d6 c5 5b 80 f2 1a 03 01 51 56 72
60 96 fd 33 5e 5e 67 f2 db f1 02 70 2e 60 8c ca e6 be c1 fc 63
a4 2a 99 be 5c 3e b7 10 7c 3c 54 e9 b9 eb 2b d5 20 3b 1c 3b 84
e0 a8 b2 f7 59 40 9b a3 ea c9 d9 1d 40 2d cc 0c c8 f8 96 12 29
ac 91 87 b4 2b 4d e1 00 00 0f 00 00 84 08 04 00 80 5a 74 7c 5d
88 fa 9b d2 e5 5a b0 85 a6 10 15 b7 21 1f 82 4c d4 84 14 5a b3
ff 52 f1 fd a8 47 7b 0b 7a bc 90 db 78 e2 d3 3a 5c 14 1a 07 86
53 fa 6b ef 78 0c 5e a2 48 ee aa a7 85 c4 f3 94 ca b6 d3 0b be
8d 48 59 ee 51 1f 60 29 57 b1 54 11 ac 02 76 71 45 9e 46 44 5c
9e a5 8c 18 1e 81 8e 95 b8 c3 fb 0b f3 27 84 09 d3 be 15 2a 3d
a5 04 3e 06 3d da 65 cd f5 ae a2 0d 53 df ac d4 2f 74 f3 14 00
00 20 9b 9b 14 1d 90 63 37 fb d2 cb dc e7 1d f4 de da 4a b4 2c
30 95 72 cb 7f ff ee 54 54 b7 8f 07 18
complete record (679 octets): 17 03 03 02 a2 d1 ff 33 4a 56 f5 bf
f6 59 4a 07 cc 87 b5 80 23 3f 50 0f 45 e4 89 e7 f3 3a f3 5e df
78 69 fc f4 0a a4 0a a2 b8 ea 73 f8 48 a7 ca 07 61 2e f9 f9 45
cb 96 0b 40 68 90 51 23 ea 78 b1 11 b4 29 ba 91 91 cd 05 d2 a3
89 28 0f 52 61 34 aa dc 7f c7 8c 4b 72 9d f8 28 b5 ec f7 b1 3b
d9 ae fb 0e 57 f2 71 58 5b 8e a9 bb 35 5c 7c 79 02 07 16 cf b9
b1 18 3e f3 ab 20 e3 7d 57 a6 b9 d7 47 76 09 ae e6 e1 22 a4 cf
51 42 73 25 25 0c 7d 0e 50 92 89 44 4c 9b 3a 64 8f 1d 71 03 5d
2e d6 5b 0e 3c dd 0c ba e8 bf 2d 0b 22 78 12 cb b3 60 98 72 55
cc 74 41 10 c4 53 ba a4 fc d6 10 92 8d 80 98 10 e4 b7 ed 1a 8f
d9 91 f0 6a a6 24 82 04 79 7e 36 a6 a7 3b 70 a2 55 9c 09 ea d6
86 94 5b a2 46 ab 66 e5 ed d8 04 4b 4c 6d e3 fc f2 a8 94 41 ac
66 27 2f d8 fb 33 0e f8 19 05 79 b3 68 45 96 c9 60 bd 59 6e ea
Thomson Informational [Page 9]
RFC 8448 TLS 1.3 Traces January 2019
52 0a 56 a8 d6 50 f5 63 aa d2 74 09 96 0d ca 63 d3 e6 88 61 1e
a5 e2 2f 44 15 cf 95 38 d5 1a 20 0c 27 03 42 72 96 8a 26 4e d6
54 0c 84 83 8d 89 f7 2c 24 46 1a ad 6d 26 f5 9e ca ba 9a cb bb
31 7b 66 d9 02 f4 f2 92 a3 6a c1 b6 39 c6 37 ce 34 31 17 b6 59
62 22 45 31 7b 49 ee da 0c 62 58 f1 00 d7 d9 61 ff b1 38 64 7e
92 ea 33 0f ae ea 6d fa 31 c7 a8 4d c3 bd 7e 1b 7a 6c 71 78 af
36 87 90 18 e3 f2 52 10 7f 24 3d 24 3d c7 33 9d 56 84 c8 b0 37
8b f3 02 44 da 8c 87 c8 43 f5 e5 6e b4 c5 e8 28 0a 2b 48 05 2c
f9 3b 16 49 9a 66 db 7c ca 71 e4 59 94 26 f7 d4 61 e6 6f 99 88
2b d8 9f c5 08 00 be cc a6 2d 6c 74 11 6d bd 29 72 fd a1 fa 80
f8 5d f8 81 ed be 5a 37 66 89 36 b3 35 58 3b 59 91 86 dc 5c 69
18 a3 96 fa 48 a1 81 d6 b6 fa 4f 9d 62 d5 13 af bb 99 2f 2b 99
2f 67 f8 af e6 7f 76 91 3f a3 88 cb 56 30 c8 ca 01 e0 c6 5d 11
c6 6a 1e 2a c4 c8 59 77 b7 c7 a6 99 9b bf 10 dc 35 ae 69 f5 51
56 14 63 6c 0b 9b 68 c1 9e d2 e3 1c 0b 3b 66 76 30 38 eb ba 42
f3 b3 8e dc 03 99 f3 a9 f2 3f aa 63 97 8c 31 7f c9 fa 66 a7 3f
60 f0 50 4d e9 3b 5b 84 5e 27 55 92 c1 23 35 ee 34 0b bc 4f dd
d5 02 78 40 16 e4 b3 be 7e f0 4d da 49 f4 b4 40 a3 0c b5 d2 af
93 98 28 fd 4a e3 79 4e 44 f9 4d f5 a6 31 ed e4 2c 17 19 bf da
bf 02 53 fe 51 75 be 89 8e 75 0e dc 53 37 0d 2b
{server} derive secret "tls13 c ap traffic":
PRK (32 octets): 18 df 06 84 3d 13 a0 8b f2 a4 49 84 4c 5f 8a 47
80 01 bc 4d 4c 62 79 84 d5 a4 1d a8 d0 40 29 19
hash (32 octets): 96 08 10 2a 0f 1c cc 6d b6 25 0b 7b 7e 41 7b 1a
00 0e aa da 3d aa e4 77 7a 76 86 c9 ff 83 df 13
info (54 octets): 00 20 12 74 6c 73 31 33 20 63 20 61 70 20 74 72
61 66 66 69 63 20 96 08 10 2a 0f 1c cc 6d b6 25 0b 7b 7e 41 7b
1a 00 0e aa da 3d aa e4 77 7a 76 86 c9 ff 83 df 13
expanded (32 octets): 9e 40 64 6c e7 9a 7f 9d c0 5a f8 88 9b ce
65 52 87 5a fa 0b 06 df 00 87 f7 92 eb b7 c1 75 04 a5
{server} derive secret "tls13 s ap traffic":
PRK (32 octets): 18 df 06 84 3d 13 a0 8b f2 a4 49 84 4c 5f 8a 47
80 01 bc 4d 4c 62 79 84 d5 a4 1d a8 d0 40 29 19
hash (32 octets): 96 08 10 2a 0f 1c cc 6d b6 25 0b 7b 7e 41 7b 1a
00 0e aa da 3d aa e4 77 7a 76 86 c9 ff 83 df 13
info (54 octets): 00 20 12 74 6c 73 31 33 20 73 20 61 70 20 74 72
61 66 66 69 63 20 96 08 10 2a 0f 1c cc 6d b6 25 0b 7b 7e 41 7b
1a 00 0e aa da 3d aa e4 77 7a 76 86 c9 ff 83 df 13
Thomson Informational [Page 10]
RFC 8448 TLS 1.3 Traces January 2019
expanded (32 octets): a1 1a f9 f0 55 31 f8 56 ad 47 11 6b 45 a9
50 32 82 04 b4 f4 4b fb 6b 3a 4b 4f 1f 3f cb 63 16 43
{server} derive secret "tls13 exp master":
PRK (32 octets): 18 df 06 84 3d 13 a0 8b f2 a4 49 84 4c 5f 8a 47
80 01 bc 4d 4c 62 79 84 d5 a4 1d a8 d0 40 29 19
hash (32 octets): 96 08 10 2a 0f 1c cc 6d b6 25 0b 7b 7e 41 7b 1a
00 0e aa da 3d aa e4 77 7a 76 86 c9 ff 83 df 13
info (52 octets): 00 20 10 74 6c 73 31 33 20 65 78 70 20 6d 61 73
74 65 72 20 96 08 10 2a 0f 1c cc 6d b6 25 0b 7b 7e 41 7b 1a 00
0e aa da 3d aa e4 77 7a 76 86 c9 ff 83 df 13
expanded (32 octets): fe 22 f8 81 17 6e da 18 eb 8f 44 52 9e 67
92 c5 0c 9a 3f 89 45 2f 68 d8 ae 31 1b 43 09 d3 cf 50
{server} derive write traffic keys for application data:
PRK (32 octets): a1 1a f9 f0 55 31 f8 56 ad 47 11 6b 45 a9 50 32
82 04 b4 f4 4b fb 6b 3a 4b 4f 1f 3f cb 63 16 43
key info (13 octets): 00 10 09 74 6c 73 31 33 20 6b 65 79 00
key expanded (16 octets): 9f 02 28 3b 6c 9c 07 ef c2 6b b9 f2 ac
92 e3 56
iv info (12 octets): 00 0c 08 74 6c 73 31 33 20 69 76 00
iv expanded (12 octets): cf 78 2b 88 dd 83 54 9a ad f1 e9 84
{server} derive read traffic keys for handshake data:
PRK (32 octets): b3 ed db 12 6e 06 7f 35 a7 80 b3 ab f4 5e 2d 8f
3b 1a 95 07 38 f5 2e 96 00 74 6a 0e 27 a5 5a 21
key info (13 octets): 00 10 09 74 6c 73 31 33 20 6b 65 79 00
key expanded (16 octets): db fa a6 93 d1 76 2c 5b 66 6a f5 d9 50
25 8d 01
iv info (12 octets): 00 0c 08 74 6c 73 31 33 20 69 76 00
iv expanded (12 octets): 5b d3 c7 1b 83 6e 0b 76 bb 73 26 5f
{client} extract secret "early" (same as server early secret)
Thomson Informational [Page 11]
RFC 8448 TLS 1.3 Traces January 2019
{client} derive secret for handshake "tls13 derived":
PRK (32 octets): 33 ad 0a 1c 60 7e c0 3b 09 e6 cd 98 93 68 0c e2
10 ad f3 00 aa 1f 26 60 e1 b2 2e 10 f1 70 f9 2a
hash (32 octets): e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24
27 ae 41 e4 64 9b 93 4c a4 95 99 1b 78 52 b8 55
info (49 octets): 00 20 0d 74 6c 73 31 33 20 64 65 72 69 76 65 64
20 e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24 27 ae 41 e4
64 9b 93 4c a4 95 99 1b 78 52 b8 55
expanded (32 octets): 6f 26 15 a1 08 c7 02 c5 67 8f 54 fc 9d ba
b6 97 16 c0 76 18 9c 48 25 0c eb ea c3 57 6c 36 11 ba
{client} extract secret "handshake" (same as server handshake
secret)
{client} derive secret "tls13 c hs traffic" (same as server)
{client} derive secret "tls13 s hs traffic" (same as server)
{client} derive secret for master "tls13 derived" (same as server)
{client} extract secret "master" (same as server master secret)
{client} derive read traffic keys for handshake data (same as server
handshake data write traffic keys)
{client} calculate finished "tls13 finished" (same as server)
{client} derive secret "tls13 c ap traffic" (same as server)
{client} derive secret "tls13 s ap traffic" (same as server)
{client} derive secret "tls13 exp master" (same as server)
{client} derive write traffic keys for handshake data (same as
server handshake data read traffic keys)
{client} derive read traffic keys for application data (same as
server application data write traffic keys)
{client} calculate finished "tls13 finished":
PRK (32 octets): b3 ed db 12 6e 06 7f 35 a7 80 b3 ab f4 5e 2d 8f
3b 1a 95 07 38 f5 2e 96 00 74 6a 0e 27 a5 5a 21
Thomson Informational [Page 12]
RFC 8448 TLS 1.3 Traces January 2019
hash (0 octets): (empty)
info (18 octets): 00 20 0e 74 6c 73 31 33 20 66 69 6e 69 73 68 65
64 00
expanded (32 octets): b8 0a d0 10 15 fb 2f 0b d6 5f f7 d4 da 5d
6b f8 3f 84 82 1d 1f 87 fd c7 d3 c7 5b 5a 7b 42 d9 c4
finished (32 octets): a8 ec 43 6d 67 76 34 ae 52 5a c1 fc eb e1
1a 03 9e c1 76 94 fa c6 e9 85 27 b6 42 f2 ed d5 ce 61
{client} construct a Finished handshake message:
Finished (36 octets): 14 00 00 20 a8 ec 43 6d 67 76 34 ae 52 5a
c1 fc eb e1 1a 03 9e c1 76 94 fa c6 e9 85 27 b6 42 f2 ed d5 ce
61
{client} send handshake record:
payload (36 octets): 14 00 00 20 a8 ec 43 6d 67 76 34 ae 52 5a c1
fc eb e1 1a 03 9e c1 76 94 fa c6 e9 85 27 b6 42 f2 ed d5 ce 61
complete record (58 octets): 17 03 03 00 35 75 ec 4d c2 38 cc e6
0b 29 80 44 a7 1e 21 9c 56 cc 77 b0 51 7f e9 b9 3c 7a 4b fc 44
d8 7f 38 f8 03 38 ac 98 fc 46 de b3 84 bd 1c ae ac ab 68 67 d7
26 c4 05 46
{client} derive write traffic keys for application data:
PRK (32 octets): 9e 40 64 6c e7 9a 7f 9d c0 5a f8 88 9b ce 65 52
87 5a fa 0b 06 df 00 87 f7 92 eb b7 c1 75 04 a5
key info (13 octets): 00 10 09 74 6c 73 31 33 20 6b 65 79 00
key expanded (16 octets): 17 42 2d da 59 6e d5 d9 ac d8 90 e3 c6
3f 50 51
iv info (12 octets): 00 0c 08 74 6c 73 31 33 20 69 76 00
iv expanded (12 octets): 5b 78 92 3d ee 08 57 90 33 e5 23 d9
{client} derive secret "tls13 res master":
PRK (32 octets): 18 df 06 84 3d 13 a0 8b f2 a4 49 84 4c 5f 8a 47
80 01 bc 4d 4c 62 79 84 d5 a4 1d a8 d0 40 29 19
hash (32 octets): 20 91 45 a9 6e e8 e2 a1 22 ff 81 00 47 cc 95 26
84 65 8d 60 49 e8 64 29 42 6d b8 7c 54 ad 14 3d
Thomson Informational [Page 13]
RFC 8448 TLS 1.3 Traces January 2019
info (52 octets): 00 20 10 74 6c 73 31 33 20 72 65 73 20 6d 61 73
74 65 72 20 20 91 45 a9 6e e8 e2 a1 22 ff 81 00 47 cc 95 26 84
65 8d 60 49 e8 64 29 42 6d b8 7c 54 ad 14 3d
expanded (32 octets): 7d f2 35 f2 03 1d 2a 05 12 87 d0 2b 02 41
b0 bf da f8 6c c8 56 23 1f 2d 5a ba 46 c4 34 ec 19 6c
{server} calculate finished "tls13 finished" (same as client)
{server} derive read traffic keys for application data (same as
client application data write traffic keys)
{server} derive secret "tls13 res master" (same as client)
{server} generate resumption secret "tls13 resumption":
PRK (32 octets): 7d f2 35 f2 03 1d 2a 05 12 87 d0 2b 02 41 b0 bf
da f8 6c c8 56 23 1f 2d 5a ba 46 c4 34 ec 19 6c
hash (2 octets): 00 00
info (22 octets): 00 20 10 74 6c 73 31 33 20 72 65 73 75 6d 70 74
69 6f 6e 02 00 00
expanded (32 octets): 4e cd 0e b6 ec 3b 4d 87 f5 d6 02 8f 92 2c
a4 c5 85 1a 27 7f d4 13 11 c9 e6 2d 2c 94 92 e1 c4 f3
{server} construct a NewSessionTicket handshake message:
NewSessionTicket (205 octets): 04 00 00 c9 00 00 00 1e fa d6 aa
c5 02 00 00 00 b2 2c 03 5d 82 93 59 ee 5f f7 af 4e c9 00 00 00
00 26 2a 64 94 dc 48 6d 2c 8a 34 cb 33 fa 90 bf 1b 00 70 ad 3c
49 88 83 c9 36 7c 09 a2 be 78 5a bc 55 cd 22 60 97 a3 a9 82 11
72 83 f8 2a 03 a1 43 ef d3 ff 5d d3 6d 64 e8 61 be 7f d6 1d 28
27 db 27 9c ce 14 50 77 d4 54 a3 66 4d 4e 6d a4 d2 9e e0 37 25
a6 a4 da fc d0 fc 67 d2 ae a7 05 29 51 3e 3d a2 67 7f a5 90 6c
5b 3f 7d 8f 92 f2 28 bd a4 0d da 72 14 70 f9 fb f2 97 b5 ae a6
17 64 6f ac 5c 03 27 2e 97 07 27 c6 21 a7 91 41 ef 5f 7d e6 50
5e 5b fb c3 88 e9 33 43 69 40 93 93 4a e4 d3 57 00 08 00 2a 00
04 00 00 04 00
{server} send handshake record:
payload (205 octets): 04 00 00 c9 00 00 00 1e fa d6 aa c5 02 00
00 00 b2 2c 03 5d 82 93 59 ee 5f f7 af 4e c9 00 00 00 00 26 2a
64 94 dc 48 6d 2c 8a 34 cb 33 fa 90 bf 1b 00 70 ad 3c 49 88 83
c9 36 7c 09 a2 be 78 5a bc 55 cd 22 60 97 a3 a9 82 11 72 83 f8
2a 03 a1 43 ef d3 ff 5d d3 6d 64 e8 61 be 7f d6 1d 28 27 db 27
Thomson Informational [Page 14]
RFC 8448 TLS 1.3 Traces January 2019
9c ce 14 50 77 d4 54 a3 66 4d 4e 6d a4 d2 9e e0 37 25 a6 a4 da
fc d0 fc 67 d2 ae a7 05 29 51 3e 3d a2 67 7f a5 90 6c 5b 3f 7d
8f 92 f2 28 bd a4 0d da 72 14 70 f9 fb f2 97 b5 ae a6 17 64 6f
ac 5c 03 27 2e 97 07 27 c6 21 a7 91 41 ef 5f 7d e6 50 5e 5b fb
c3 88 e9 33 43 69 40 93 93 4a e4 d3 57 00 08 00 2a 00 04 00 00
04 00
complete record (227 octets): 17 03 03 00 de 3a 6b 8f 90 41 4a 97
d6 95 9c 34 87 68 0d e5 13 4a 2b 24 0e 6c ff ac 11 6e 95 d4 1d
6a f8 f6 b5 80 dc f3 d1 1d 63 c7 58 db 28 9a 01 59 40 25 2f 55
71 3e 06 1d c1 3e 07 88 91 a3 8e fb cf 57 53 ad 8e f1 70 ad 3c
73 53 d1 6d 9d a7 73 b9 ca 7f 2b 9f a1 b6 c0 d4 a3 d0 3f 75 e0
9c 30 ba 1e 62 97 2a c4 6f 75 f7 b9 81 be 63 43 9b 29 99 ce 13
06 46 15 13 98 91 d5 e4 c5 b4 06 f1 6e 3f c1 81 a7 7c a4 75 84
00 25 db 2f 0a 77 f8 1b 5a b0 5b 94 c0 13 46 75 5f 69 23 2c 86
51 9d 86 cb ee ac 87 aa c3 47 d1 43 f9 60 5d 64 f6 50 db 4d 02
3e 70 e9 52 ca 49 fe 51 37 12 1c 74 bc 26 97 68 7e 24 87 46 d6
df 35 30 05 f3 bc e1 86 96 12 9c 81 53 55 6b 3b 6c 67 79 b3 7b
f1 59 85 68 4f
{client} generate resumption secret "tls13 resumption" (same as
server)
{client} send application_data record:
payload (50 octets): 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e
0f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23
24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31
complete record (72 octets): 17 03 03 00 43 a2 3f 70 54 b6 2c 94
d0 af fa fe 82 28 ba 55 cb ef ac ea 42 f9 14 aa 66 bc ab 3f 2b
98 19 a8 a5 b4 6b 39 5b d5 4a 9a 20 44 1e 2b 62 97 4e 1f 5a 62
92 a2 97 70 14 bd 1e 3d ea e6 3a ee bb 21 69 49 15 e4
{server} send application_data record:
payload (50 octets): 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e
0f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23
24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31
complete record (72 octets): 17 03 03 00 43 2e 93 7e 11 ef 4a c7
40 e5 38 ad 36 00 5f c4 a4 69 32 fc 32 25 d0 5f 82 aa 1b 36 e3
0e fa f9 7d 90 e6 df fc 60 2d cb 50 1a 59 a8 fc c4 9c 4b f2 e5
f0 a2 1c 00 47 c2 ab f3 32 54 0d d0 32 e1 67 c2 95 5d
{client} send alert record:
payload (2 octets): 01 00
Thomson Informational [Page 15]
RFC 8448 TLS 1.3 Traces January 2019
complete record (24 octets): 17 03 03 00 13 c9 87 27 60 65 56 66
b7 4d 7f f1 15 3e fd 6d b6 d0 b0 e3
{server} send alert record:
payload (2 octets): 01 00
complete record (24 octets): 17 03 03 00 13 b5 8f d6 71 66 eb f5
99 d2 47 20 cf be 7e fa 7a 88 64 a9
4. Resumed 0-RTT Handshake
This handshake resumes from the handshake in Section 3. Since the
server provided a session ticket that permitted 0-RTT, and the client
is configured for 0-RTT, the client is able to send 0-RTT data.
Note: The PSK binder uses the same construction as Finished and so is
labeled as finished here.
{client} create an ephemeral x25519 key pair:
private key (32 octets): bf f9 11 88 28 38 46 dd 6a 21 34 ef 71
80 ca 2b 0b 14 fb 10 dc e7 07 b5 09 8c 0d dd c8 13 b2 df
public key (32 octets): e4 ff b6 8a c0 5f 8d 96 c9 9d a2 66 98 34
6c 6b e1 64 82 ba dd da fe 05 1a 66 b4 f1 8d 66 8f 0b
{client} extract secret "early":
salt: 0 (all zero octets)
IKM (32 octets): 4e cd 0e b6 ec 3b 4d 87 f5 d6 02 8f 92 2c a4 c5
85 1a 27 7f d4 13 11 c9 e6 2d 2c 94 92 e1 c4 f3
secret (32 octets): 9b 21 88 e9 b2 fc 6d 64 d7 1d c3 29 90 0e 20
bb 41 91 50 00 f6 78 aa 83 9c bb 79 7c b7 d8 33 2c
{client} construct a ClientHello handshake message:
ClientHello (477 octets): 01 00 01 fc 03 03 1b c3 ce b6 bb e3 9c
ff 93 83 55 b5 a5 0a db 6d b2 1b 7a 6a f6 49 d7 b4 bc 41 9d 78
76 48 7d 95 00 00 06 13 01 13 03 13 02 01 00 01 cd 00 00 00 0b
00 09 00 00 06 73 65 72 76 65 72 ff 01 00 01 00 00 0a 00 14 00
12 00 1d 00 17 00 18 00 19 01 00 01 01 01 02 01 03 01 04 00 33
00 26 00 24 00 1d 00 20 e4 ff b6 8a c0 5f 8d 96 c9 9d a2 66 98
34 6c 6b e1 64 82 ba dd da fe 05 1a 66 b4 f1 8d 66 8f 0b 00 2a
00 00 00 2b 00 03 02 03 04 00 0d 00 20 00 1e 04 03 05 03 06 03
02 03 08 04 08 05 08 06 04 01 05 01 06 01 02 01 04 02 05 02 06
Thomson Informational [Page 16]
RFC 8448 TLS 1.3 Traces January 2019
02 02 02 00 2d 00 02 01 01 00 1c 00 02 40 01 00 15 00 57 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 29 00 dd 00 b8 00 b2 2c 03 5d 82 93 59 ee 5f f7 af 4e c9
00 00 00 00 26 2a 64 94 dc 48 6d 2c 8a 34 cb 33 fa 90 bf 1b 00
70 ad 3c 49 88 83 c9 36 7c 09 a2 be 78 5a bc 55 cd 22 60 97 a3
a9 82 11 72 83 f8 2a 03 a1 43 ef d3 ff 5d d3 6d 64 e8 61 be 7f
d6 1d 28 27 db 27 9c ce 14 50 77 d4 54 a3 66 4d 4e 6d a4 d2 9e
e0 37 25 a6 a4 da fc d0 fc 67 d2 ae a7 05 29 51 3e 3d a2 67 7f
a5 90 6c 5b 3f 7d 8f 92 f2 28 bd a4 0d da 72 14 70 f9 fb f2 97
b5 ae a6 17 64 6f ac 5c 03 27 2e 97 07 27 c6 21 a7 91 41 ef 5f
7d e6 50 5e 5b fb c3 88 e9 33 43 69 40 93 93 4a e4 d3 57 fa d6
aa cb
{client} calculate PSK binder:
ClientHello prefix (477 octets): 01 00 01 fc 03 03 1b c3 ce b6 bb
e3 9c ff 93 83 55 b5 a5 0a db 6d b2 1b 7a 6a f6 49 d7 b4 bc 41
9d 78 76 48 7d 95 00 00 06 13 01 13 03 13 02 01 00 01 cd 00 00
00 0b 00 09 00 00 06 73 65 72 76 65 72 ff 01 00 01 00 00 0a 00
14 00 12 00 1d 00 17 00 18 00 19 01 00 01 01 01 02 01 03 01 04
00 33 00 26 00 24 00 1d 00 20 e4 ff b6 8a c0 5f 8d 96 c9 9d a2
66 98 34 6c 6b e1 64 82 ba dd da fe 05 1a 66 b4 f1 8d 66 8f 0b
00 2a 00 00 00 2b 00 03 02 03 04 00 0d 00 20 00 1e 04 03 05 03
06 03 02 03 08 04 08 05 08 06 04 01 05 01 06 01 02 01 04 02 05
02 06 02 02 02 00 2d 00 02 01 01 00 1c 00 02 40 01 00 15 00 57
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 29 00 dd 00 b8 00 b2 2c 03 5d 82 93 59 ee 5f f7 af
4e c9 00 00 00 00 26 2a 64 94 dc 48 6d 2c 8a 34 cb 33 fa 90 bf
1b 00 70 ad 3c 49 88 83 c9 36 7c 09 a2 be 78 5a bc 55 cd 22 60
97 a3 a9 82 11 72 83 f8 2a 03 a1 43 ef d3 ff 5d d3 6d 64 e8 61
be 7f d6 1d 28 27 db 27 9c ce 14 50 77 d4 54 a3 66 4d 4e 6d a4
d2 9e e0 37 25 a6 a4 da fc d0 fc 67 d2 ae a7 05 29 51 3e 3d a2
67 7f a5 90 6c 5b 3f 7d 8f 92 f2 28 bd a4 0d da 72 14 70 f9 fb
f2 97 b5 ae a6 17 64 6f ac 5c 03 27 2e 97 07 27 c6 21 a7 91 41
ef 5f 7d e6 50 5e 5b fb c3 88 e9 33 43 69 40 93 93 4a e4 d3 57
fa d6 aa cb
binder hash (32 octets): 63 22 4b 2e 45 73 f2 d3 45 4c a8 4b 9d
00 9a 04 f6 be 9e 05 71 1a 83 96 47 3a ef a0 1e 92 4a 14
PRK (32 octets): 69 fe 13 1a 3b ba d5 d6 3c 64 ee bc c3 0e 39 5b
9d 81 07 72 6a 13 d0 74 e3 89 db c8 a4 e4 72 56
Thomson Informational [Page 17]
RFC 8448 TLS 1.3 Traces January 2019
hash (0 octets): (empty)
info (18 octets): 00 20 0e 74 6c 73 31 33 20 66 69 6e 69 73 68 65
64 00
expanded (32 octets): 55 88 67 3e 72 cb 59 c8 7d 22 0c af fe 94
f2 de a9 a3 b1 60 9f 7d 50 e9 0a 48 22 7d b9 ed 7e aa
finished (32 octets): 3a dd 4f b2 d8 fd f8 22 a0 ca 3c f7 67 8e
f5 e8 8d ae 99 01 41 c5 92 4d 57 bb 6f a3 1b 9e 5f 9d
{client} send handshake record:
payload (512 octets): 01 00 01 fc 03 03 1b c3 ce b6 bb e3 9c ff
93 83 55 b5 a5 0a db 6d b2 1b 7a 6a f6 49 d7 b4 bc 41 9d 78 76
48 7d 95 00 00 06 13 01 13 03 13 02 01 00 01 cd 00 00 00 0b 00
09 00 00 06 73 65 72 76 65 72 ff 01 00 01 00 00 0a 00 14 00 12
00 1d 00 17 00 18 00 19 01 00 01 01 01 02 01 03 01 04 00 33 00
26 00 24 00 1d 00 20 e4 ff b6 8a c0 5f 8d 96 c9 9d a2 66 98 34
6c 6b e1 64 82 ba dd da fe 05 1a 66 b4 f1 8d 66 8f 0b 00 2a 00
00 00 2b 00 03 02 03 04 00 0d 00 20 00 1e 04 03 05 03 06 03 02
03 08 04 08 05 08 06 04 01 05 01 06 01 02 01 04 02 05 02 06 02
02 02 00 2d 00 02 01 01 00 1c 00 02 40 01 00 15 00 57 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 29 00 dd 00 b8 00 b2 2c 03 5d 82 93 59 ee 5f f7 af 4e c9 00
00 00 00 26 2a 64 94 dc 48 6d 2c 8a 34 cb 33 fa 90 bf 1b 00 70
ad 3c 49 88 83 c9 36 7c 09 a2 be 78 5a bc 55 cd 22 60 97 a3 a9
82 11 72 83 f8 2a 03 a1 43 ef d3 ff 5d d3 6d 64 e8 61 be 7f d6
1d 28 27 db 27 9c ce 14 50 77 d4 54 a3 66 4d 4e 6d a4 d2 9e e0
37 25 a6 a4 da fc d0 fc 67 d2 ae a7 05 29 51 3e 3d a2 67 7f a5
90 6c 5b 3f 7d 8f 92 f2 28 bd a4 0d da 72 14 70 f9 fb f2 97 b5
ae a6 17 64 6f ac 5c 03 27 2e 97 07 27 c6 21 a7 91 41 ef 5f 7d
e6 50 5e 5b fb c3 88 e9 33 43 69 40 93 93 4a e4 d3 57 fa d6 aa
cb 00 21 20 3a dd 4f b2 d8 fd f8 22 a0 ca 3c f7 67 8e f5 e8 8d
ae 99 01 41 c5 92 4d 57 bb 6f a3 1b 9e 5f 9d
complete record (517 octets): 16 03 01 02 00 01 00 01 fc 03 03 1b
c3 ce b6 bb e3 9c ff 93 83 55 b5 a5 0a db 6d b2 1b 7a 6a f6 49
d7 b4 bc 41 9d 78 76 48 7d 95 00 00 06 13 01 13 03 13 02 01 00
01 cd 00 00 00 0b 00 09 00 00 06 73 65 72 76 65 72 ff 01 00 01
00 00 0a 00 14 00 12 00 1d 00 17 00 18 00 19 01 00 01 01 01 02
01 03 01 04 00 33 00 26 00 24 00 1d 00 20 e4 ff b6 8a c0 5f 8d
96 c9 9d a2 66 98 34 6c 6b e1 64 82 ba dd da fe 05 1a 66 b4 f1
8d 66 8f 0b 00 2a 00 00 00 2b 00 03 02 03 04 00 0d 00 20 00 1e
04 03 05 03 06 03 02 03 08 04 08 05 08 06 04 01 05 01 06 01 02
Thomson Informational [Page 18]
RFC 8448 TLS 1.3 Traces January 2019
01 04 02 05 02 06 02 02 02 00 2d 00 02 01 01 00 1c 00 02 40 01
00 15 00 57 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 29 00 dd 00 b8 00 b2 2c 03 5d 82 93 59
ee 5f f7 af 4e c9 00 00 00 00 26 2a 64 94 dc 48 6d 2c 8a 34 cb
33 fa 90 bf 1b 00 70 ad 3c 49 88 83 c9 36 7c 09 a2 be 78 5a bc
55 cd 22 60 97 a3 a9 82 11 72 83 f8 2a 03 a1 43 ef d3 ff 5d d3
6d 64 e8 61 be 7f d6 1d 28 27 db 27 9c ce 14 50 77 d4 54 a3 66
4d 4e 6d a4 d2 9e e0 37 25 a6 a4 da fc d0 fc 67 d2 ae a7 05 29
51 3e 3d a2 67 7f a5 90 6c 5b 3f 7d 8f 92 f2 28 bd a4 0d da 72
14 70 f9 fb f2 97 b5 ae a6 17 64 6f ac 5c 03 27 2e 97 07 27 c6
21 a7 91 41 ef 5f 7d e6 50 5e 5b fb c3 88 e9 33 43 69 40 93 93
4a e4 d3 57 fa d6 aa cb 00 21 20 3a dd 4f b2 d8 fd f8 22 a0 ca
3c f7 67 8e f5 e8 8d ae 99 01 41 c5 92 4d 57 bb 6f a3 1b 9e 5f
9d
{client} derive secret "tls13 c e traffic":
PRK (32 octets): 9b 21 88 e9 b2 fc 6d 64 d7 1d c3 29 90 0e 20 bb
41 91 50 00 f6 78 aa 83 9c bb 79 7c b7 d8 33 2c
hash (32 octets): 08 ad 0f a0 5d 7c 72 33 b1 77 5b a2 ff 9f 4c 5b
8b 59 27 6b 7f 22 7f 13 a9 76 24 5f 5d 96 09 13
info (53 octets): 00 20 11 74 6c 73 31 33 20 63 20 65 20 74 72 61
66 66 69 63 20 08 ad 0f a0 5d 7c 72 33 b1 77 5b a2 ff 9f 4c 5b
8b 59 27 6b 7f 22 7f 13 a9 76 24 5f 5d 96 09 13
expanded (32 octets): 3f bb e6 a6 0d eb 66 c3 0a 32 79 5a ba 0e
ff 7e aa 10 10 55 86 e7 be 5c 09 67 8d 63 b6 ca ab 62
{client} derive secret "tls13 e exp master":
PRK (32 octets): 9b 21 88 e9 b2 fc 6d 64 d7 1d c3 29 90 0e 20 bb
41 91 50 00 f6 78 aa 83 9c bb 79 7c b7 d8 33 2c
hash (32 octets): 08 ad 0f a0 5d 7c 72 33 b1 77 5b a2 ff 9f 4c 5b
8b 59 27 6b 7f 22 7f 13 a9 76 24 5f 5d 96 09 13
info (54 octets): 00 20 12 74 6c 73 31 33 20 65 20 65 78 70 20 6d
61 73 74 65 72 20 08 ad 0f a0 5d 7c 72 33 b1 77 5b a2 ff 9f 4c
5b 8b 59 27 6b 7f 22 7f 13 a9 76 24 5f 5d 96 09 13
expanded (32 octets): b2 02 68 66 61 09 37 d7 42 3e 5b e9 08 62
cc f2 4c 0e 60 91 18 6d 34 f8 12 08 9f f5 be 2e f7 df
Thomson Informational [Page 19]
RFC 8448 TLS 1.3 Traces January 2019
{client} derive write traffic keys for early application data:
PRK (32 octets): 3f bb e6 a6 0d eb 66 c3 0a 32 79 5a ba 0e ff 7e
aa 10 10 55 86 e7 be 5c 09 67 8d 63 b6 ca ab 62
key info (13 octets): 00 10 09 74 6c 73 31 33 20 6b 65 79 00
key expanded (16 octets): 92 02 05 a5 b7 bf 21 15 e6 fc 5c 29 42
83 4f 54
iv info (12 octets): 00 0c 08 74 6c 73 31 33 20 69 76 00
iv expanded (12 octets): 6d 47 5f 09 93 c8 e5 64 61 0d b2 b9
{client} send application_data record:
payload (6 octets): 41 42 43 44 45 46
complete record (28 octets): 17 03 03 00 17 ab 1d f4 20 e7 5c 45
7a 7c c5 d2 84 4f 76 d5 ae e4 b4 ed bf 04 9b e0
{server} extract secret "early" (same as client early secret)
{server} calculate PSK binder (same as client):
{server} create an ephemeral x25519 key pair:
private key (32 octets): de 5b 44 76 e7 b4 90 b2 65 2d 33 8a cb
f2 94 80 66 f2 55 f9 44 0e 23 b9 8f c6 98 35 29 8d c1 07
public key (32 octets): 12 17 61 ee 42 c3 33 e1 b9 e7 7b 60 dd 57
c2 05 3c d9 45 12 ab 47 f1 15 e8 6e ff 50 94 2c ea 31
{server} derive secret "tls13 c e traffic" (same as client)
{server} derive secret "tls13 e exp master" (same as client)
{server} construct a ServerHello handshake message:
ServerHello (96 octets): 02 00 00 5c 03 03 3c cf d2 de c8 90 22
27 63 47 2a e8 13 67 77 c9 d7 35 87 77 bb 66 e9 1e a5 12 24 95
f5 59 ea 2d 00 13 01 00 00 34 00 29 00 02 00 00 00 33 00 24 00
1d 00 20 12 17 61 ee 42 c3 33 e1 b9 e7 7b 60 dd 57 c2 05 3c d9
45 12 ab 47 f1 15 e8 6e ff 50 94 2c ea 31 00 2b 00 02 03 04
Thomson Informational [Page 20]
RFC 8448 TLS 1.3 Traces January 2019
{server} derive secret for handshake "tls13 derived":
PRK (32 octets): 9b 21 88 e9 b2 fc 6d 64 d7 1d c3 29 90 0e 20 bb
41 91 50 00 f6 78 aa 83 9c bb 79 7c b7 d8 33 2c
hash (32 octets): e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24
27 ae 41 e4 64 9b 93 4c a4 95 99 1b 78 52 b8 55
info (49 octets): 00 20 0d 74 6c 73 31 33 20 64 65 72 69 76 65 64
20 e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24 27 ae 41 e4
64 9b 93 4c a4 95 99 1b 78 52 b8 55
expanded (32 octets): 5f 17 90 bb d8 2c 5e 7d 37 6e d2 e1 e5 2f
8e 60 38 c9 34 6d b6 1b 43 be 9a 52 f7 7e f3 99 8e 80
{server} extract secret "handshake":
salt (32 octets): 5f 17 90 bb d8 2c 5e 7d 37 6e d2 e1 e5 2f 8e 60
38 c9 34 6d b6 1b 43 be 9a 52 f7 7e f3 99 8e 80
IKM (32 octets): f4 41 94 75 6f f9 ec 9d 25 18 06 35 d6 6e a6 82
4c 6a b3 bf 17 99 77 be 37 f7 23 57 0e 7c cb 2e
secret (32 octets): 00 5c b1 12 fd 8e b4 cc c6 23 bb 88 a0 7c 64
b3 ed e1 60 53 63 fc 7d 0d f8 c7 ce 4f f0 fb 4a e6
{server} derive secret "tls13 c hs traffic":
PRK (32 octets): 00 5c b1 12 fd 8e b4 cc c6 23 bb 88 a0 7c 64 b3
ed e1 60 53 63 fc 7d 0d f8 c7 ce 4f f0 fb 4a e6
hash (32 octets): f7 36 cb 34 fe 25 e7 01 55 1b ee 6f d2 4c 1c c7
10 2a 7d af 94 05 cb 15 d9 7a af e1 6f 75 7d 03
info (54 octets): 00 20 12 74 6c 73 31 33 20 63 20 68 73 20 74 72
61 66 66 69 63 20 f7 36 cb 34 fe 25 e7 01 55 1b ee 6f d2 4c 1c
c7 10 2a 7d af 94 05 cb 15 d9 7a af e1 6f 75 7d 03
expanded (32 octets): 2f aa c0 8f 85 1d 35 fe a3 60 4f cb 4d e8
2d c6 2c 9b 16 4a 70 97 4d 04 62 e2 7f 1a b2 78 70 0f
{server} derive secret "tls13 s hs traffic":
PRK (32 octets): 00 5c b1 12 fd 8e b4 cc c6 23 bb 88 a0 7c 64 b3
ed e1 60 53 63 fc 7d 0d f8 c7 ce 4f f0 fb 4a e6
hash (32 octets): f7 36 cb 34 fe 25 e7 01 55 1b ee 6f d2 4c 1c c7
10 2a 7d af 94 05 cb 15 d9 7a af e1 6f 75 7d 03
Thomson Informational [Page 21]
RFC 8448 TLS 1.3 Traces January 2019
info (54 octets): 00 20 12 74 6c 73 31 33 20 73 20 68 73 20 74 72
61 66 66 69 63 20 f7 36 cb 34 fe 25 e7 01 55 1b ee 6f d2 4c 1c
c7 10 2a 7d af 94 05 cb 15 d9 7a af e1 6f 75 7d 03
expanded (32 octets): fe 92 7a e2 71 31 2e 8b f0 27 5b 58 1c 54
ee f0 20 45 0d c4 ec ff aa 05 a1 a3 5d 27 51 8e 78 03
{server} derive secret for master "tls13 derived":
PRK (32 octets): 00 5c b1 12 fd 8e b4 cc c6 23 bb 88 a0 7c 64 b3
ed e1 60 53 63 fc 7d 0d f8 c7 ce 4f f0 fb 4a e6
hash (32 octets): e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24
27 ae 41 e4 64 9b 93 4c a4 95 99 1b 78 52 b8 55
info (49 octets): 00 20 0d 74 6c 73 31 33 20 64 65 72 69 76 65 64
20 e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24 27 ae 41 e4
64 9b 93 4c a4 95 99 1b 78 52 b8 55
expanded (32 octets): e2 f1 60 30 25 1d f0 87 4b a1 9b 9a ba 25
76 10 bc 6d 53 1c 1d d2 06 df 0c a6 e8 4a e2 a2 67 42
{server} extract secret "master":
salt (32 octets): e2 f1 60 30 25 1d f0 87 4b a1 9b 9a ba 25 76 10
bc 6d 53 1c 1d d2 06 df 0c a6 e8 4a e2 a2 67 42
IKM (32 octets): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
secret (32 octets): e2 d3 2d 4e d6 6d d3 78 97 a0 e8 0c 84 10 75
03 ce 58 bf 8a ad 4c b5 5a 50 02 d7 7e cb 89 0e ce
{server} send handshake record:
payload (96 octets): 02 00 00 5c 03 03 3c cf d2 de c8 90 22 27 63
47 2a e8 13 67 77 c9 d7 35 87 77 bb 66 e9 1e a5 12 24 95 f5 59
ea 2d 00 13 01 00 00 34 00 29 00 02 00 00 00 33 00 24 00 1d 00
20 12 17 61 ee 42 c3 33 e1 b9 e7 7b 60 dd 57 c2 05 3c d9 45 12
ab 47 f1 15 e8 6e ff 50 94 2c ea 31 00 2b 00 02 03 04
complete record (101 octets): 16 03 03 00 60 02 00 00 5c 03 03 3c
cf d2 de c8 90 22 27 63 47 2a e8 13 67 77 c9 d7 35 87 77 bb 66
e9 1e a5 12 24 95 f5 59 ea 2d 00 13 01 00 00 34 00 29 00 02 00
00 00 33 00 24 00 1d 00 20 12 17 61 ee 42 c3 33 e1 b9 e7 7b 60
dd 57 c2 05 3c d9 45 12 ab 47 f1 15 e8 6e ff 50 94 2c ea 31 00
2b 00 02 03 04
Thomson Informational [Page 22]
RFC 8448 TLS 1.3 Traces January 2019
{server} derive write traffic keys for handshake data:
PRK (32 octets): fe 92 7a e2 71 31 2e 8b f0 27 5b 58 1c 54 ee f0
20 45 0d c4 ec ff aa 05 a1 a3 5d 27 51 8e 78 03
key info (13 octets): 00 10 09 74 6c 73 31 33 20 6b 65 79 00
key expanded (16 octets): 27 c6 bd c0 a3 dc ea 39 a4 73 26 d7 9b
c9 e4 ee
iv info (12 octets): 00 0c 08 74 6c 73 31 33 20 69 76 00
iv expanded (12 octets): 95 69 ec dd 4d 05 36 70 5e 9e f7 25
{server} construct an EncryptedExtensions handshake message:
EncryptedExtensions (44 octets): 08 00 00 28 00 26 00 0a 00 14 00
12 00 1d 00 17 00 18 00 19 01 00 01 01 01 02 01 03 01 04 00 1c
00 02 40 01 00 00 00 00 00 2a 00 00
{server} calculate finished "tls13 finished":
PRK (32 octets): fe 92 7a e2 71 31 2e 8b f0 27 5b 58 1c 54 ee f0
20 45 0d c4 ec ff aa 05 a1 a3 5d 27 51 8e 78 03
hash (0 octets): (empty)
info (18 octets): 00 20 0e 74 6c 73 31 33 20 66 69 6e 69 73 68 65
64 00
expanded (32 octets): 4b b7 4c ae 7a 5d c8 91 46 04 c0 bf be 2f
0c 06 23 96 88 39 22 be c8 a1 5e 2a 9b 53 2a 5d 39 2c
finished (32 octets): 48 d3 e0 e1 b3 d9 07 c6 ac ff 14 5e 16 09
03 88 c7 7b 05 c0 50 b6 34 ab 1a 88 bb d0 dd 1a 34 b2
{server} construct a Finished handshake message:
Finished (36 octets): 14 00 00 20 48 d3 e0 e1 b3 d9 07 c6 ac ff
14 5e 16 09 03 88 c7 7b 05 c0 50 b6 34 ab 1a 88 bb d0 dd 1a 34
b2
Thomson Informational [Page 23]
RFC 8448 TLS 1.3 Traces January 2019
{server} send handshake record:
payload (80 octets): 08 00 00 28 00 26 00 0a 00 14 00 12 00 1d 00
17 00 18 00 19 01 00 01 01 01 02 01 03 01 04 00 1c 00 02 40 01
00 00 00 00 00 2a 00 00 14 00 00 20 48 d3 e0 e1 b3 d9 07 c6 ac
ff 14 5e 16 09 03 88 c7 7b 05 c0 50 b6 34 ab 1a 88 bb d0 dd 1a
34 b2
complete record (102 octets): 17 03 03 00 61 dc 48 23 7b 4b 87 9f
50 d0 d4 d2 62 ea 8b 47 16 eb 40 dd c1 eb 95 7e 11 12 6e 8a 71
49 c2 d0 12 d3 7a 71 15 95 7e 64 ce 30 00 8b 9e 03 23 f2 c0 5a
9c 1c 77 b4 f3 78 49 a6 95 ab 25 50 60 a3 3f ee 77 0c a9 5c b8
48 6b fd 08 43 b8 70 24 86 5c a3 5c c4 1c 4e 51 5c 64 dc b1 36
9f 98 63 5b c7 a5
{server} derive secret "tls13 c ap traffic":
PRK (32 octets): e2 d3 2d 4e d6 6d d3 78 97 a0 e8 0c 84 10 75 03
ce 58 bf 8a ad 4c b5 5a 50 02 d7 7e cb 89 0e ce
hash (32 octets): b0 ae ff c4 6a 2c fe 33 11 4e 6f d7 d5 1f 9f 04
b1 ca 3c 49 7d ab 08 93 4a 77 4a 9d 9a d7 db f3
info (54 octets): 00 20 12 74 6c 73 31 33 20 63 20 61 70 20 74 72
61 66 66 69 63 20 b0 ae ff c4 6a 2c fe 33 11 4e 6f d7 d5 1f 9f
04 b1 ca 3c 49 7d ab 08 93 4a 77 4a 9d 9a d7 db f3
expanded (32 octets): 2a bb f2 b8 e3 81 d2 3d be be 1d d2 a7 d1
6a 8b f4 84 cb 49 50 d2 3f b7 fb 7f a8 54 70 62 d9 a1
{server} derive secret "tls13 s ap traffic":
PRK (32 octets): e2 d3 2d 4e d6 6d d3 78 97 a0 e8 0c 84 10 75 03
ce 58 bf 8a ad 4c b5 5a 50 02 d7 7e cb 89 0e ce
hash (32 octets): b0 ae ff c4 6a 2c fe 33 11 4e 6f d7 d5 1f 9f 04
b1 ca 3c 49 7d ab 08 93 4a 77 4a 9d 9a d7 db f3
info (54 octets): 00 20 12 74 6c 73 31 33 20 73 20 61 70 20 74 72
61 66 66 69 63 20 b0 ae ff c4 6a 2c fe 33 11 4e 6f d7 d5 1f 9f
04 b1 ca 3c 49 7d ab 08 93 4a 77 4a 9d 9a d7 db f3
expanded (32 octets): cc 21 f1 bf 8f eb 7d d5 fa 50 5b d9 c4 b4
68 a9 98 4d 55 4a 99 3d c4 9e 6d 28 55 98 fb 67 26 91
Thomson Informational [Page 24]
RFC 8448 TLS 1.3 Traces January 2019
{server} derive secret "tls13 exp master":
PRK (32 octets): e2 d3 2d 4e d6 6d d3 78 97 a0 e8 0c 84 10 75 03
ce 58 bf 8a ad 4c b5 5a 50 02 d7 7e cb 89 0e ce
hash (32 octets): b0 ae ff c4 6a 2c fe 33 11 4e 6f d7 d5 1f 9f 04
b1 ca 3c 49 7d ab 08 93 4a 77 4a 9d 9a d7 db f3
info (52 octets): 00 20 10 74 6c 73 31 33 20 65 78 70 20 6d 61 73
74 65 72 20 b0 ae ff c4 6a 2c fe 33 11 4e 6f d7 d5 1f 9f 04 b1
ca 3c 49 7d ab 08 93 4a 77 4a 9d 9a d7 db f3
expanded (32 octets): 3f d9 3d 4f fd dc 98 e6 4b 14 dd 10 7a ed
f8 ee 4a dd 23 f4 51 0f 58 a4 59 2d 0b 20 1b ee 56 b4
{server} derive write traffic keys for application data:
PRK (32 octets): cc 21 f1 bf 8f eb 7d d5 fa 50 5b d9 c4 b4 68 a9
98 4d 55 4a 99 3d c4 9e 6d 28 55 98 fb 67 26 91
key info (13 octets): 00 10 09 74 6c 73 31 33 20 6b 65 79 00
key expanded (16 octets): e8 57 c6 90 a3 4c 5a 91 29 d8 33 61 96
84 f9 5e
iv info (12 octets): 00 0c 08 74 6c 73 31 33 20 69 76 00
iv expanded (12 octets): 06 85 d6 b5 61 aa b9 ef 10 13 fa f9
{server} derive read traffic keys for early application data (same
as client early application data write traffic keys)
{client} derive secret for handshake "tls13 derived":
PRK (32 octets): 9b 21 88 e9 b2 fc 6d 64 d7 1d c3 29 90 0e 20 bb
41 91 50 00 f6 78 aa 83 9c bb 79 7c b7 d8 33 2c
hash (32 octets): e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24
27 ae 41 e4 64 9b 93 4c a4 95 99 1b 78 52 b8 55
info (49 octets): 00 20 0d 74 6c 73 31 33 20 64 65 72 69 76 65 64
20 e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24 27 ae 41 e4
64 9b 93 4c a4 95 99 1b 78 52 b8 55
expanded (32 octets): 5f 17 90 bb d8 2c 5e 7d 37 6e d2 e1 e5 2f
8e 60 38 c9 34 6d b6 1b 43 be 9a 52 f7 7e f3 99 8e 80
Thomson Informational [Page 25]
RFC 8448 TLS 1.3 Traces January 2019
{client} extract secret "handshake" (same as server handshake
secret)
{client} derive secret "tls13 c hs traffic" (same as server)
{client} derive secret "tls13 s hs traffic" (same as server)
{client} derive secret for master "tls13 derived" (same as server)
{client} extract secret "master" (same as server master secret)
{client} derive read traffic keys for handshake data (same as server
handshake data write traffic keys)
{client} calculate finished "tls13 finished" (same as server)
{client} derive secret "tls13 c ap traffic" (same as server)
{client} derive secret "tls13 s ap traffic" (same as server)
{client} derive secret "tls13 exp master" (same as server)
{client} construct an EndOfEarlyData handshake message:
EndOfEarlyData (4 octets): 05 00 00 00
{client} send handshake record:
payload (4 octets): 05 00 00 00
complete record (26 octets): 17 03 03 00 15 ac a6 fc 94 48 41 29
8d f9 95 93 72 5f 9b f9 75 44 29 b1 2f 09
{client} derive write traffic keys for handshake data:
PRK (32 octets): 2f aa c0 8f 85 1d 35 fe a3 60 4f cb 4d e8 2d c6
2c 9b 16 4a 70 97 4d 04 62 e2 7f 1a b2 78 70 0f
key info (13 octets): 00 10 09 74 6c 73 31 33 20 6b 65 79 00
key expanded (16 octets): b1 53 08 06 f4 ad fe ac 83 f1 41 30 32
bb fa 82
iv info (12 octets): 00 0c 08 74 6c 73 31 33 20 69 76 00
iv expanded (12 octets): eb 50 c1 6b e7 65 4a bf 99 dd 06 d9
Thomson Informational [Page 26]
RFC 8448 TLS 1.3 Traces January 2019
{client} derive read traffic keys for application data (same as
server application data write traffic keys)
{client} calculate finished "tls13 finished":
PRK (32 octets): 2f aa c0 8f 85 1d 35 fe a3 60 4f cb 4d e8 2d c6
2c 9b 16 4a 70 97 4d 04 62 e2 7f 1a b2 78 70 0f
hash (0 octets): (empty)
info (18 octets): 00 20 0e 74 6c 73 31 33 20 66 69 6e 69 73 68 65
64 00
expanded (32 octets): 5a ce 39 4c 26 98 0d 58 12 43 f6 27 d1 15
0a e2 7e 37 fa 52 36 4e 0a 7f 20 ac 68 6d 09 cd 0e 8e
finished (32 octets): 72 30 a9 c9 52 c2 5c d6 13 8f c5 e6 62 83
08 c4 1c 53 35 dd 81 b9 f9 6b ce a5 0f d3 2b da 41 6d
{client} construct a Finished handshake message:
Finished (36 octets): 14 00 00 20 72 30 a9 c9 52 c2 5c d6 13 8f
c5 e6 62 83 08 c4 1c 53 35 dd 81 b9 f9 6b ce a5 0f d3 2b da 41
6d
{client} send handshake record:
payload (36 octets): 14 00 00 20 72 30 a9 c9 52 c2 5c d6 13 8f c5
e6 62 83 08 c4 1c 53 35 dd 81 b9 f9 6b ce a5 0f d3 2b da 41 6d
complete record (58 octets): 17 03 03 00 35 00 f8 b4 67 d1 4c f2
2a 4b 3f 0b 6a e0 d8 e6 cc 8d 08 e0 db 35 15 ef 5c 2b df 19 22
ea fb b7 00 09 96 47 16 d8 34 fb 70 c3 d2 a5 6c 5b 1f 5f 6b db
a6 c3 33 cf
{client} derive write traffic keys for application data:
PRK (32 octets): 2a bb f2 b8 e3 81 d2 3d be be 1d d2 a7 d1 6a 8b
f4 84 cb 49 50 d2 3f b7 fb 7f a8 54 70 62 d9 a1
key info (13 octets): 00 10 09 74 6c 73 31 33 20 6b 65 79 00
key expanded (16 octets): 3c f1 22 f3 01 c6 35 8c a7 98 95 53 25
0e fd 72
iv info (12 octets): 00 0c 08 74 6c 73 31 33 20 69 76 00
iv expanded (12 octets): ab 1a ec 26 aa 78 b8 fc 11 76 b9 ac
Thomson Informational [Page 27]
RFC 8448 TLS 1.3 Traces January 2019
{client} derive secret "tls13 res master":
PRK (32 octets): e2 d3 2d 4e d6 6d d3 78 97 a0 e8 0c 84 10 75 03
ce 58 bf 8a ad 4c b5 5a 50 02 d7 7e cb 89 0e ce
hash (32 octets): c3 c1 22 e0 bd 90 7a 4a 3f f6 11 2d 8f d5 3d bf
89 c7 73 d9 55 2e 8b 6b 9d 56 d3 61 b3 a9 7b f6
info (52 octets): 00 20 10 74 6c 73 31 33 20 72 65 73 20 6d 61 73
74 65 72 20 c3 c1 22 e0 bd 90 7a 4a 3f f6 11 2d 8f d5 3d bf 89
c7 73 d9 55 2e 8b 6b 9d 56 d3 61 b3 a9 7b f6
expanded (32 octets): 5e 95 bd f1 f8 90 05 ea 2e 9a a0 ba 85 e7
28 e3 c1 9c 5f e0 c6 99 e3 f5 be e5 9f ae bd 0b 54 06
{server} derive read traffic keys for handshake data (same as client
handshake data write traffic keys)
{server} calculate finished "tls13 finished" (same as client)
{server} derive read traffic keys for application data (same as
client application data write traffic keys)
{server} derive secret "tls13 res master" (same as client)
{client} send application_data record:
payload (50 octets): 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e
0f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23
24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31
complete record (72 octets): 17 03 03 00 43 b1 ce bc e2 42 aa 20
1b e9 ae 5e 1c b2 a9 aa 4b 33 d4 e8 66 af 1e db 06 89 19 23 77
41 aa 03 1d 7a 74 d4 91 c9 9b 9d 4e 23 2b 74 20 6b c6 fb aa 04
fe 78 be 44 a9 b4 f5 43 20 a1 7e b7 69 92 af ac 31 03
{server} send application_data record:
payload (50 octets): 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e
0f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23
24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31
complete record (72 octets): 17 03 03 00 43 27 5e 9f 20 ac ff 57
bc 00 06 57 d3 86 7d f0 39 cc cf 79 04 78 84 cf 75 77 17 46 f7
40 b5 a8 3f 46 2a 09 54 c3 58 13 93 a2 03 a2 5a 7d d1 41 41 ef
1a 37 90 0c db 62 ff 62 de e1 ba 39 ab 25 90 cb f1 94
Thomson Informational [Page 28]
RFC 8448 TLS 1.3 Traces January 2019
{client} send alert record:
payload (2 octets): 01 00
complete record (24 octets): 17 03 03 00 13 0f ac ce 32 46 bd fc
63 69 83 8d 6a 82 ae 6d e5 d4 22 dc
{server} send alert record:
payload (2 octets): 01 00
complete record (24 octets): 17 03 03 00 13 5b 18 af 44 4e 8e 1e
ec 71 58 fb 62 d8 f2 57 7d 37 ba 5d
5. HelloRetryRequest
In this example, the client initiates a handshake with an X25519
[RFC7748] share. The server, however, prefers P-256
[FIPS.186-4.2013] and sends a HelloRetryRequest that requires the
client to generate a key share on the P-256 curve.
Note: The HelloRetryRequest uses the same handshake message type as
a ServerHello and so is labeled as ServerHello here.
{client} create an ephemeral x25519 key pair:
private key (32 octets): 0e d0 2f 8e 81 17 ef c7 5c a7 ac 32 aa
7e 34 ed a6 4c dc 0d da d1 54 a5 e8 52 89 f9 59 f6 32 04
public key (32 octets): e8 e8 e3 f3 b9 3a 25 ed 97 a1 4a 7d ca cb
8a 27 2c 62 88 e5 85 c6 48 4d 05 26 2f ca d0 62 ad 1f
{client} construct a ClientHello handshake message:
ClientHello (180 octets): 01 00 00 b0 03 03 b0 b1 c5 a5 aa 37 c5
91 9f 2e d1 d5 c6 ff f7 fc b7 84 97 16 94 5a 2b 8c ee 92 58 a3
46 67 7b 6f 00 00 06 13 01 13 03 13 02 01 00 00 81 00 00 00 0b
00 09 00 00 06 73 65 72 76 65 72 ff 01 00 01 00 00 0a 00 08 00
06 00 1d 00 17 00 18 00 33 00 26 00 24 00 1d 00 20 e8 e8 e3 f3
b9 3a 25 ed 97 a1 4a 7d ca cb 8a 27 2c 62 88 e5 85 c6 48 4d 05
26 2f ca d0 62 ad 1f 00 2b 00 03 02 03 04 00 0d 00 20 00 1e 04
03 05 03 06 03 02 03 08 04 08 05 08 06 04 01 05 01 06 01 02 01
04 02 05 02 06 02 02 02 00 2d 00 02 01 01 00 1c 00 02 40 01
Thomson Informational [Page 29]
RFC 8448 TLS 1.3 Traces January 2019
{client} send handshake record:
payload (180 octets): 01 00 00 b0 03 03 b0 b1 c5 a5 aa 37 c5 91
9f 2e d1 d5 c6 ff f7 fc b7 84 97 16 94 5a 2b 8c ee 92 58 a3 46
67 7b 6f 00 00 06 13 01 13 03 13 02 01 00 00 81 00 00 00 0b 00
09 00 00 06 73 65 72 76 65 72 ff 01 00 01 00 00 0a 00 08 00 06
00 1d 00 17 00 18 00 33 00 26 00 24 00 1d 00 20 e8 e8 e3 f3 b9
3a 25 ed 97 a1 4a 7d ca cb 8a 27 2c 62 88 e5 85 c6 48 4d 05 26
2f ca d0 62 ad 1f 00 2b 00 03 02 03 04 00 0d 00 20 00 1e 04 03
05 03 06 03 02 03 08 04 08 05 08 06 04 01 05 01 06 01 02 01 04
02 05 02 06 02 02 02 00 2d 00 02 01 01 00 1c 00 02 40 01
complete record (185 octets): 16 03 01 00 b4 01 00 00 b0 03 03 b0
b1 c5 a5 aa 37 c5 91 9f 2e d1 d5 c6 ff f7 fc b7 84 97 16 94 5a
2b 8c ee 92 58 a3 46 67 7b 6f 00 00 06 13 01 13 03 13 02 01 00
00 81 00 00 00 0b 00 09 00 00 06 73 65 72 76 65 72 ff 01 00 01
00 00 0a 00 08 00 06 00 1d 00 17 00 18 00 33 00 26 00 24 00 1d
00 20 e8 e8 e3 f3 b9 3a 25 ed 97 a1 4a 7d ca cb 8a 27 2c 62 88
e5 85 c6 48 4d 05 26 2f ca d0 62 ad 1f 00 2b 00 03 02 03 04 00
0d 00 20 00 1e 04 03 05 03 06 03 02 03 08 04 08 05 08 06 04 01
05 01 06 01 02 01 04 02 05 02 06 02 02 02 00 2d 00 02 01 01 00
1c 00 02 40 01
{server} construct a ServerHello handshake message:
ServerHello (176 octets): 02 00 00 ac 03 03 cf 21 ad 74 e5 9a 61
11 be 1d 8c 02 1e 65 b8 91 c2 a2 11 16 7a bb 8c 5e 07 9e 09 e2
c8 a8 33 9c 00 13 01 00 00 84 00 33 00 02 00 17 00 2c 00 74 00
72 71 dc d0 4b b8 8b c3 18 91 19 39 8a 00 00 00 00 ee fa fc 76
c1 46 b8 23 b0 96 f8 aa ca d3 65 dd 00 30 95 3f 4e df 62 56 36
e5 f2 1b b2 e2 3f cc 65 4b 1b 5b 40 31 8d 10 d1 37 ab cb b8 75
74 e3 6e 8a 1f 02 5f 7d fa 5d 6e 50 78 1b 5e da 4a a1 5b 0c 8b
e7 78 25 7d 16 aa 30 30 e9 e7 84 1d d9 e4 c0 34 22 67 e8 ca 0c
af 57 1f b2 b7 cf f0 f9 34 b0 00 2b 00 02 03 04
{server} send handshake record:
payload (176 octets): 02 00 00 ac 03 03 cf 21 ad 74 e5 9a 61 11
be 1d 8c 02 1e 65 b8 91 c2 a2 11 16 7a bb 8c 5e 07 9e 09 e2 c8
a8 33 9c 00 13 01 00 00 84 00 33 00 02 00 17 00 2c 00 74 00 72
71 dc d0 4b b8 8b c3 18 91 19 39 8a 00 00 00 00 ee fa fc 76 c1
46 b8 23 b0 96 f8 aa ca d3 65 dd 00 30 95 3f 4e df 62 56 36 e5
f2 1b b2 e2 3f cc 65 4b 1b 5b 40 31 8d 10 d1 37 ab cb b8 75 74
e3 6e 8a 1f 02 5f 7d fa 5d 6e 50 78 1b 5e da 4a a1 5b 0c 8b e7
78 25 7d 16 aa 30 30 e9 e7 84 1d d9 e4 c0 34 22 67 e8 ca 0c af
57 1f b2 b7 cf f0 f9 34 b0 00 2b 00 02 03 04
Thomson Informational [Page 30]
RFC 8448 TLS 1.3 Traces January 2019
complete record (181 octets): 16 03 03 00 b0 02 00 00 ac 03 03 cf
21 ad 74 e5 9a 61 11 be 1d 8c 02 1e 65 b8 91 c2 a2 11 16 7a bb
8c 5e 07 9e 09 e2 c8 a8 33 9c 00 13 01 00 00 84 00 33 00 02 00
17 00 2c 00 74 00 72 71 dc d0 4b b8 8b c3 18 91 19 39 8a 00 00
00 00 ee fa fc 76 c1 46 b8 23 b0 96 f8 aa ca d3 65 dd 00 30 95
3f 4e df 62 56 36 e5 f2 1b b2 e2 3f cc 65 4b 1b 5b 40 31 8d 10
d1 37 ab cb b8 75 74 e3 6e 8a 1f 02 5f 7d fa 5d 6e 50 78 1b 5e
da 4a a1 5b 0c 8b e7 78 25 7d 16 aa 30 30 e9 e7 84 1d d9 e4 c0
34 22 67 e8 ca 0c af 57 1f b2 b7 cf f0 f9 34 b0 00 2b 00 02 03
04
{client} create an ephemeral P-256 key pair:
private key (32 octets): ab 54 73 46 7e 19 34 6c eb 0a 04 14 e4
1d a2 1d 4d 24 45 bc 30 25 af e9 7c 4e 8d c8 d5 13 da 39
public key (65 octets): 04 a6 da 73 92 ec 59 1e 17 ab fd 53 59 64
b9 98 94 d1 3b ef b2 21 b3 de f2 eb e3 83 0e ac 8f 01 51 81 26
77 c4 d6 d2 23 7e 85 cf 01 d6 91 0c fb 83 95 4e 76 ba 73 52 83
05 34 15 98 97 e8 06 57 80
{client} construct a ClientHello handshake message:
ClientHello (512 octets): 01 00 01 fc 03 03 b0 b1 c5 a5 aa 37 c5
91 9f 2e d1 d5 c6 ff f7 fc b7 84 97 16 94 5a 2b 8c ee 92 58 a3
46 67 7b 6f 00 00 06 13 01 13 03 13 02 01 00 01 cd 00 00 00 0b
00 09 00 00 06 73 65 72 76 65 72 ff 01 00 01 00 00 0a 00 08 00
06 00 1d 00 17 00 18 00 33 00 47 00 45 00 17 00 41 04 a6 da 73
92 ec 59 1e 17 ab fd 53 59 64 b9 98 94 d1 3b ef b2 21 b3 de f2
eb e3 83 0e ac 8f 01 51 81 26 77 c4 d6 d2 23 7e 85 cf 01 d6 91
0c fb 83 95 4e 76 ba 73 52 83 05 34 15 98 97 e8 06 57 80 00 2b
00 03 02 03 04 00 0d 00 20 00 1e 04 03 05 03 06 03 02 03 08 04
08 05 08 06 04 01 05 01 06 01 02 01 04 02 05 02 06 02 02 02 00
2c 00 74 00 72 71 dc d0 4b b8 8b c3 18 91 19 39 8a 00 00 00 00
ee fa fc 76 c1 46 b8 23 b0 96 f8 aa ca d3 65 dd 00 30 95 3f 4e
df 62 56 36 e5 f2 1b b2 e2 3f cc 65 4b 1b 5b 40 31 8d 10 d1 37
ab cb b8 75 74 e3 6e 8a 1f 02 5f 7d fa 5d 6e 50 78 1b 5e da 4a
a1 5b 0c 8b e7 78 25 7d 16 aa 30 30 e9 e7 84 1d d9 e4 c0 34 22
67 e8 ca 0c af 57 1f b2 b7 cf f0 f9 34 b0 00 2d 00 02 01 01 00
1c 00 02 40 01 00 15 00 af 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Thomson Informational [Page 31]
RFC 8448 TLS 1.3 Traces January 2019
{client} send handshake record:
payload (512 octets): 01 00 01 fc 03 03 b0 b1 c5 a5 aa 37 c5 91
9f 2e d1 d5 c6 ff f7 fc b7 84 97 16 94 5a 2b 8c ee 92 58 a3 46
67 7b 6f 00 00 06 13 01 13 03 13 02 01 00 01 cd 00 00 00 0b 00
09 00 00 06 73 65 72 76 65 72 ff 01 00 01 00 00 0a 00 08 00 06
00 1d 00 17 00 18 00 33 00 47 00 45 00 17 00 41 04 a6 da 73 92
ec 59 1e 17 ab fd 53 59 64 b9 98 94 d1 3b ef b2 21 b3 de f2 eb
e3 83 0e ac 8f 01 51 81 26 77 c4 d6 d2 23 7e 85 cf 01 d6 91 0c
fb 83 95 4e 76 ba 73 52 83 05 34 15 98 97 e8 06 57 80 00 2b 00
03 02 03 04 00 0d 00 20 00 1e 04 03 05 03 06 03 02 03 08 04 08
05 08 06 04 01 05 01 06 01 02 01 04 02 05 02 06 02 02 02 00 2c
00 74 00 72 71 dc d0 4b b8 8b c3 18 91 19 39 8a 00 00 00 00 ee
fa fc 76 c1 46 b8 23 b0 96 f8 aa ca d3 65 dd 00 30 95 3f 4e df
62 56 36 e5 f2 1b b2 e2 3f cc 65 4b 1b 5b 40 31 8d 10 d1 37 ab
cb b8 75 74 e3 6e 8a 1f 02 5f 7d fa 5d 6e 50 78 1b 5e da 4a a1
5b 0c 8b e7 78 25 7d 16 aa 30 30 e9 e7 84 1d d9 e4 c0 34 22 67
e8 ca 0c af 57 1f b2 b7 cf f0 f9 34 b0 00 2d 00 02 01 01 00 1c
00 02 40 01 00 15 00 af 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
complete record (517 octets): 16 03 03 02 00 01 00 01 fc 03 03 b0
b1 c5 a5 aa 37 c5 91 9f 2e d1 d5 c6 ff f7 fc b7 84 97 16 94 5a
2b 8c ee 92 58 a3 46 67 7b 6f 00 00 06 13 01 13 03 13 02 01 00
01 cd 00 00 00 0b 00 09 00 00 06 73 65 72 76 65 72 ff 01 00 01
00 00 0a 00 08 00 06 00 1d 00 17 00 18 00 33 00 47 00 45 00 17
00 41 04 a6 da 73 92 ec 59 1e 17 ab fd 53 59 64 b9 98 94 d1 3b
ef b2 21 b3 de f2 eb e3 83 0e ac 8f 01 51 81 26 77 c4 d6 d2 23
7e 85 cf 01 d6 91 0c fb 83 95 4e 76 ba 73 52 83 05 34 15 98 97
e8 06 57 80 00 2b 00 03 02 03 04 00 0d 00 20 00 1e 04 03 05 03
06 03 02 03 08 04 08 05 08 06 04 01 05 01 06 01 02 01 04 02 05
02 06 02 02 02 00 2c 00 74 00 72 71 dc d0 4b b8 8b c3 18 91 19
39 8a 00 00 00 00 ee fa fc 76 c1 46 b8 23 b0 96 f8 aa ca d3 65
dd 00 30 95 3f 4e df 62 56 36 e5 f2 1b b2 e2 3f cc 65 4b 1b 5b
40 31 8d 10 d1 37 ab cb b8 75 74 e3 6e 8a 1f 02 5f 7d fa 5d 6e
50 78 1b 5e da 4a a1 5b 0c 8b e7 78 25 7d 16 aa 30 30 e9 e7 84
1d d9 e4 c0 34 22 67 e8 ca 0c af 57 1f b2 b7 cf f0 f9 34 b0 00
2d 00 02 01 01 00 1c 00 02 40 01 00 15 00 af 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Thomson Informational [Page 32]
RFC 8448 TLS 1.3 Traces January 2019
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
{server} extract secret "early":
salt: 0 (all zero octets)
IKM (32 octets): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
secret (32 octets): 33 ad 0a 1c 60 7e c0 3b 09 e6 cd 98 93 68 0c
e2 10 ad f3 00 aa 1f 26 60 e1 b2 2e 10 f1 70 f9 2a
{server} create an ephemeral P-256 key pair:
private key (32 octets): 8c 51 06 01 f9 76 5b fb 8e d6 93 44 9a
48 98 98 59 b5 cf a8 79 cb 9f 54 43 c4 1c 5f f1 06 34 ed
public key (65 octets): 04 58 3e 05 4b 7a 66 67 2a e0 20 ad 9d 26
86 fc c8 5b 5a d4 1a 13 4a 0f 03 ee 72 b8 93 05 2b d8 5b 4c 8d
e6 77 6f 5b 04 ac 07 d8 35 40 ea b3 e3 d9 c5 47 bc 65 28 c4 31
7d 29 46 86 09 3a 6c ad 7d
{server} construct a ServerHello handshake message:
ServerHello (123 octets): 02 00 00 77 03 03 bb 34 1d 84 7f d7 89
c4 7c 38 71 72 dc 0c 9b f1 47 fc ca cb 50 43 d8 6c a4 c5 98 d3
ff 57 1b 98 00 13 01 00 00 4f 00 33 00 45 00 17 00 41 04 58 3e
05 4b 7a 66 67 2a e0 20 ad 9d 26 86 fc c8 5b 5a d4 1a 13 4a 0f
03 ee 72 b8 93 05 2b d8 5b 4c 8d e6 77 6f 5b 04 ac 07 d8 35 40
ea b3 e3 d9 c5 47 bc 65 28 c4 31 7d 29 46 86 09 3a 6c ad 7d 00
2b 00 02 03 04
{server} derive secret for handshake "tls13 derived":
PRK (32 octets): 33 ad 0a 1c 60 7e c0 3b 09 e6 cd 98 93 68 0c e2
10 ad f3 00 aa 1f 26 60 e1 b2 2e 10 f1 70 f9 2a
hash (32 octets): e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24
27 ae 41 e4 64 9b 93 4c a4 95 99 1b 78 52 b8 55
info (49 octets): 00 20 0d 74 6c 73 31 33 20 64 65 72 69 76 65 64
20 e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24 27 ae 41 e4
64 9b 93 4c a4 95 99 1b 78 52 b8 55
Thomson Informational [Page 33]
RFC 8448 TLS 1.3 Traces January 2019
expanded (32 octets): 6f 26 15 a1 08 c7 02 c5 67 8f 54 fc 9d ba
b6 97 16 c0 76 18 9c 48 25 0c eb ea c3 57 6c 36 11 ba
{server} extract secret "handshake":
salt (32 octets): 6f 26 15 a1 08 c7 02 c5 67 8f 54 fc 9d ba b6 97
16 c0 76 18 9c 48 25 0c eb ea c3 57 6c 36 11 ba
IKM (32 octets): c1 42 ce 13 ca 11 b5 c2 23 36 52 e6 3a d3 d9 78
44 f1 62 1f bf b9 de 69 d5 47 dc 8f ed ea be b4
secret (32 octets): ce 02 2e 5e 6e 81 e5 07 36 d7 73 f2 d3 ad fc
e8 22 0d 04 9b f5 10 f0 db fa c9 27 ef 42 43 b1 48
{server} derive secret "tls13 c hs traffic":
PRK (32 octets): ce 02 2e 5e 6e 81 e5 07 36 d7 73 f2 d3 ad fc e8
22 0d 04 9b f5 10 f0 db fa c9 27 ef 42 43 b1 48
hash (32 octets): 8a a8 e8 28 ec 2f 8a 88 4f ec 95 a3 13 9d e0 1c
15 a3 da a7 ff 5b fc 3f 4b fc c2 1b 43 8d 7b f8
info (54 octets): 00 20 12 74 6c 73 31 33 20 63 20 68 73 20 74 72
61 66 66 69 63 20 8a a8 e8 28 ec 2f 8a 88 4f ec 95 a3 13 9d e0
1c 15 a3 da a7 ff 5b fc 3f 4b fc c2 1b 43 8d 7b f8
expanded (32 octets): 15 8a a7 ab 88 55 07 35 82 b4 1d 67 4b 40
55 ca bc c5 34 72 8f 65 93 14 86 1b 4e 08 e2 01 15 66
{server} derive secret "tls13 s hs traffic":
PRK (32 octets): ce 02 2e 5e 6e 81 e5 07 36 d7 73 f2 d3 ad fc e8
22 0d 04 9b f5 10 f0 db fa c9 27 ef 42 43 b1 48
hash (32 octets): 8a a8 e8 28 ec 2f 8a 88 4f ec 95 a3 13 9d e0 1c
15 a3 da a7 ff 5b fc 3f 4b fc c2 1b 43 8d 7b f8
info (54 octets): 00 20 12 74 6c 73 31 33 20 73 20 68 73 20 74 72
61 66 66 69 63 20 8a a8 e8 28 ec 2f 8a 88 4f ec 95 a3 13 9d e0
1c 15 a3 da a7 ff 5b fc 3f 4b fc c2 1b 43 8d 7b f8
expanded (32 octets): 34 03 e7 81 e2 af 7b 65 08 da 28 57 4f 6e
95 a1 ab f1 62 de 83 a9 79 27 c3 76 72 a4 a0 ce f8 a1
{server} derive secret for master "tls13 derived":
PRK (32 octets): ce 02 2e 5e 6e 81 e5 07 36 d7 73 f2 d3 ad fc e8
22 0d 04 9b f5 10 f0 db fa c9 27 ef 42 43 b1 48
Thomson Informational [Page 34]
RFC 8448 TLS 1.3 Traces January 2019
hash (32 octets): e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24
27 ae 41 e4 64 9b 93 4c a4 95 99 1b 78 52 b8 55
info (49 octets): 00 20 0d 74 6c 73 31 33 20 64 65 72 69 76 65 64
20 e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24 27 ae 41 e4
64 9b 93 4c a4 95 99 1b 78 52 b8 55
expanded (32 octets): ad 1c bc d3 a0 dc 70 53 ee b3 ed 3a 47 90
1d 16 a9 fc 63 a7 3c 64 be b5 67 48 1a 7d fb 3a 2c b3
{server} extract secret "master":
salt (32 octets): ad 1c bc d3 a0 dc 70 53 ee b3 ed 3a 47 90 1d 16
a9 fc 63 a7 3c 64 be b5 67 48 1a 7d fb 3a 2c b3
IKM (32 octets): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
secret (32 octets): 11 31 54 5d 0b af 79 dd ce 9b 87 f0 69 45 78
1a 57 dd 18 ef 37 8d cd 20 60 f8 f9 a5 69 02 7e d8
{server} send handshake record:
payload (123 octets): 02 00 00 77 03 03 bb 34 1d 84 7f d7 89 c4
7c 38 71 72 dc 0c 9b f1 47 fc ca cb 50 43 d8 6c a4 c5 98 d3 ff
57 1b 98 00 13 01 00 00 4f 00 33 00 45 00 17 00 41 04 58 3e 05
4b 7a 66 67 2a e0 20 ad 9d 26 86 fc c8 5b 5a d4 1a 13 4a 0f 03
ee 72 b8 93 05 2b d8 5b 4c 8d e6 77 6f 5b 04 ac 07 d8 35 40 ea
b3 e3 d9 c5 47 bc 65 28 c4 31 7d 29 46 86 09 3a 6c ad 7d 00 2b
00 02 03 04
complete record (128 octets): 16 03 03 00 7b 02 00 00 77 03 03 bb
34 1d 84 7f d7 89 c4 7c 38 71 72 dc 0c 9b f1 47 fc ca cb 50 43
d8 6c a4 c5 98 d3 ff 57 1b 98 00 13 01 00 00 4f 00 33 00 45 00
17 00 41 04 58 3e 05 4b 7a 66 67 2a e0 20 ad 9d 26 86 fc c8 5b
5a d4 1a 13 4a 0f 03 ee 72 b8 93 05 2b d8 5b 4c 8d e6 77 6f 5b
04 ac 07 d8 35 40 ea b3 e3 d9 c5 47 bc 65 28 c4 31 7d 29 46 86
09 3a 6c ad 7d 00 2b 00 02 03 04
{server} derive write traffic keys for handshake data:
PRK (32 octets): 34 03 e7 81 e2 af 7b 65 08 da 28 57 4f 6e 95 a1
ab f1 62 de 83 a9 79 27 c3 76 72 a4 a0 ce f8 a1
key info (13 octets): 00 10 09 74 6c 73 31 33 20 6b 65 79 00
key expanded (16 octets): 46 46 bf ac 17 12 c4 26 cd 78 d8 a2 4a
8a 6f 6b
Thomson Informational [Page 35]
RFC 8448 TLS 1.3 Traces January 2019
iv info (12 octets): 00 0c 08 74 6c 73 31 33 20 69 76 00
iv expanded (12 octets): c7 d3 95 c0 8d 62 f2 97 d1 37 68 ea
{server} construct an EncryptedExtensions handshake message:
EncryptedExtensions (28 octets): 08 00 00 18 00 16 00 0a 00 08 00
06 00 17 00 18 00 1d 00 1c 00 02 40 01 00 00 00 00
{server} construct a Certificate handshake message:
Certificate (445 octets): 0b 00 01 b9 00 00 01 b5 00 01 b0 30 82
01 ac 30 82 01 15 a0 03 02 01 02 02 01 02 30 0d 06 09 2a 86 48
86 f7 0d 01 01 0b 05 00 30 0e 31 0c 30 0a 06 03 55 04 03 13 03
72 73 61 30 1e 17 0d 31 36 30 37 33 30 30 31 32 33 35 39 5a 17
0d 32 36 30 37 33 30 30 31 32 33 35 39 5a 30 0e 31 0c 30 0a 06
03 55 04 03 13 03 72 73 61 30 81 9f 30 0d 06 09 2a 86 48 86 f7
0d 01 01 01 05 00 03 81 8d 00 30 81 89 02 81 81 00 b4 bb 49 8f
82 79 30 3d 98 08 36 39 9b 36 c6 98 8c 0c 68 de 55 e1 bd b8 26
d3 90 1a 24 61 ea fd 2d e4 9a 91 d0 15 ab bc 9a 95 13 7a ce 6c
1a f1 9e aa 6a f9 8c 7c ed 43 12 09 98 e1 87 a8 0e e0 cc b0 52
4b 1b 01 8c 3e 0b 63 26 4d 44 9a 6d 38 e2 2a 5f da 43 08 46 74
80 30 53 0e f0 46 1c 8c a9 d9 ef bf ae 8e a6 d1 d0 3e 2b d1 93
ef f0 ab 9a 80 02 c4 74 28 a6 d3 5a 8d 88 d7 9f 7f 1e 3f 02 03
01 00 01 a3 1a 30 18 30 09 06 03 55 1d 13 04 02 30 00 30 0b 06
03 55 1d 0f 04 04 03 02 05 a0 30 0d 06 09 2a 86 48 86 f7 0d 01
01 0b 05 00 03 81 81 00 85 aa d2 a0 e5 b9 27 6b 90 8c 65 f7 3a
72 67 17 06 18 a5 4c 5f 8a 7b 33 7d 2d f7 a5 94 36 54 17 f2 ea
e8 f8 a5 8c 8f 81 72 f9 31 9c f3 6b 7f d6 c5 5b 80 f2 1a 03 01
51 56 72 60 96 fd 33 5e 5e 67 f2 db f1 02 70 2e 60 8c ca e6 be
c1 fc 63 a4 2a 99 be 5c 3e b7 10 7c 3c 54 e9 b9 eb 2b d5 20 3b
1c 3b 84 e0 a8 b2 f7 59 40 9b a3 ea c9 d9 1d 40 2d cc 0c c8 f8
96 12 29 ac 91 87 b4 2b 4d e1 00 00
{server} construct a CertificateVerify handshake message:
CertificateVerify (136 octets): 0f 00 00 84 08 04 00 80 33 ab 13
d4 46 27 07 23 1b 5d ca e6 c8 19 0b 63 d1 da bc 74 f2 8c 39 53
70 da 0b 07 e5 b8 30 66 d0 24 6a 31 ac d9 5d f4 75 bf d7 99 a4
a7 0d 33 ad 93 d3 a3 17 a9 b2 c0 d2 37 a5 68 5b 21 9e 77 41 12
e3 91 a2 47 60 7d 1a ef f1 bb d0 a3 9f 38 2e e1 a5 fe 88 ae 99
ec 59 22 8e 64 97 e4 5d 48 ce 27 5a 6d 5e f4 0d 16 9f b6 f9 d3
3b 05 2e d3 dc dd 6b 5a 48 ba af ff bc b2 90 12 84 15 bd 38
{server} calculate finished "tls13 finished":
PRK (32 octets): 34 03 e7 81 e2 af 7b 65 08 da 28 57 4f 6e 95 a1
ab f1 62 de 83 a9 79 27 c3 76 72 a4 a0 ce f8 a1
Thomson Informational [Page 36]
RFC 8448 TLS 1.3 Traces January 2019
hash (0 octets): (empty)
info (18 octets): 00 20 0e 74 6c 73 31 33 20 66 69 6e 69 73 68 65
64 00
expanded (32 octets): e7 f8 bb 3e a4 b6 c3 0c 47 10 b3 d0 9c 33
13 65 81 17 e7 0b 09 7e 85 03 68 e2 51 0c a5 63 1f 74
finished (32 octets): 88 63 e6 bf b0 42 0a 92 7f a2 7f 34 33 6a
70 ae 42 6e 96 8e 3e b8 84 94 5b 96 85 6d ba 39 76 d1
{server} construct a Finished handshake message:
Finished (36 octets): 14 00 00 20 88 63 e6 bf b0 42 0a 92 7f a2
7f 34 33 6a 70 ae 42 6e 96 8e 3e b8 84 94 5b 96 85 6d ba 39 76
d1
{server} send handshake record:
payload (645 octets): 08 00 00 18 00 16 00 0a 00 08 00 06 00 17
00 18 00 1d 00 1c 00 02 40 01 00 00 00 00 0b 00 01 b9 00 00 01
b5 00 01 b0 30 82 01 ac 30 82 01 15 a0 03 02 01 02 02 01 02 30
0d 06 09 2a 86 48 86 f7 0d 01 01 0b 05 00 30 0e 31 0c 30 0a 06
03 55 04 03 13 03 72 73 61 30 1e 17 0d 31 36 30 37 33 30 30 31
32 33 35 39 5a 17 0d 32 36 30 37 33 30 30 31 32 33 35 39 5a 30
0e 31 0c 30 0a 06 03 55 04 03 13 03 72 73 61 30 81 9f 30 0d 06
09 2a 86 48 86 f7 0d 01 01 01 05 00 03 81 8d 00 30 81 89 02 81
81 00 b4 bb 49 8f 82 79 30 3d 98 08 36 39 9b 36 c6 98 8c 0c 68
de 55 e1 bd b8 26 d3 90 1a 24 61 ea fd 2d e4 9a 91 d0 15 ab bc
9a 95 13 7a ce 6c 1a f1 9e aa 6a f9 8c 7c ed 43 12 09 98 e1 87
a8 0e e0 cc b0 52 4b 1b 01 8c 3e 0b 63 26 4d 44 9a 6d 38 e2 2a
5f da 43 08 46 74 80 30 53 0e f0 46 1c 8c a9 d9 ef bf ae 8e a6
d1 d0 3e 2b d1 93 ef f0 ab 9a 80 02 c4 74 28 a6 d3 5a 8d 88 d7
9f 7f 1e 3f 02 03 01 00 01 a3 1a 30 18 30 09 06 03 55 1d 13 04
02 30 00 30 0b 06 03 55 1d 0f 04 04 03 02 05 a0 30 0d 06 09 2a
86 48 86 f7 0d 01 01 0b 05 00 03 81 81 00 85 aa d2 a0 e5 b9 27
6b 90 8c 65 f7 3a 72 67 17 06 18 a5 4c 5f 8a 7b 33 7d 2d f7 a5
94 36 54 17 f2 ea e8 f8 a5 8c 8f 81 72 f9 31 9c f3 6b 7f d6 c5
5b 80 f2 1a 03 01 51 56 72 60 96 fd 33 5e 5e 67 f2 db f1 02 70
2e 60 8c ca e6 be c1 fc 63 a4 2a 99 be 5c 3e b7 10 7c 3c 54 e9
b9 eb 2b d5 20 3b 1c 3b 84 e0 a8 b2 f7 59 40 9b a3 ea c9 d9 1d
40 2d cc 0c c8 f8 96 12 29 ac 91 87 b4 2b 4d e1 00 00 0f 00 00
84 08 04 00 80 33 ab 13 d4 46 27 07 23 1b 5d ca e6 c8 19 0b 63
d1 da bc 74 f2 8c 39 53 70 da 0b 07 e5 b8 30 66 d0 24 6a 31 ac
d9 5d f4 75 bf d7 99 a4 a7 0d 33 ad 93 d3 a3 17 a9 b2 c0 d2 37
a5 68 5b 21 9e 77 41 12 e3 91 a2 47 60 7d 1a ef f1 bb d0 a3 9f
38 2e e1 a5 fe 88 ae 99 ec 59 22 8e 64 97 e4 5d 48 ce 27 5a 6d
5e f4 0d 16 9f b6 f9 d3 3b 05 2e d3 dc dd 6b 5a 48 ba af ff bc
Thomson Informational [Page 37]
RFC 8448 TLS 1.3 Traces January 2019
b2 90 12 84 15 bd 38 14 00 00 20 88 63 e6 bf b0 42 0a 92 7f a2
7f 34 33 6a 70 ae 42 6e 96 8e 3e b8 84 94 5b 96 85 6d ba 39 76
d1
complete record (667 octets): 17 03 03 02 96 99 be e2 0b af 5b 7f
c7 27 bf ab 62 23 92 8a 38 1e 6d 0c f9 c4 da 65 3f 9d 2a 7b 23
f7 de 11 cc e8 42 d5 cf 75 63 17 63 45 0f fb 8b 0c c1 d2 38 e6
58 af 7a 12 ad c8 62 43 11 4a b1 4a 1d a2 fa e4 26 21 ce 48 3f
b6 24 2e ab fa ad 52 56 6b 02 b3 1d 2e dd ed ef eb 80 e6 6a 99
00 d5 f9 73 b4 0c 4f df 74 71 9e cf 1b 68 d7 f9 c3 b6 ce b9 03
ca 13 dd 1b b8 f8 18 7a e3 34 17 e1 d1 52 52 2c 58 22 a1 a0 3a
d5 2c 83 8c 55 95 3d 61 02 22 87 4c ce 8e 17 90 b2 29 a2 aa 0b
53 c8 d3 77 ee 72 01 82 95 1d c6 18 1d c5 d9 0b d1 f0 10 5e d1
e8 4a a5 f7 59 57 c6 66 18 97 07 9e 5e a5 00 74 49 e3 19 7b dc
7c 9b ee ed dd ea fd d8 44 af a5 c3 15 ec fe 65 e5 76 af e9 09
81 28 80 62 0e c7 04 8b 42 d7 f5 c7 8d 76 f2 99 d6 d8 25 34 bd
d8 f5 12 fe bc 0e d3 81 4a ca 47 0c d8 00 0d 3e 1c b9 96 2b 05
2f bb 95 0d f6 83 a5 2c 2b a7 7e d3 71 3b 12 29 37 a6 e5 17 09
64 e2 ab 79 69 dc d9 80 b3 db 9b 45 8d a7 60 31 24 d6 dc 00 5e
4d 6e 04 b4 d0 c4 ba f3 27 5d b8 27 db ba 0a 6d b0 96 72 17 1f
c0 57 b3 85 1d 7e 02 68 41 e2 97 8f bd 23 46 bb ef dd 03 76 bb
11 08 fe 9a cc 92 18 9f 56 50 aa 5e 85 d8 e8 c7 b6 7a c5 10 db
a0 03 d3 d7 e1 63 50 bb 66 d4 50 13 ef d4 4c 9b 60 7c 0d 31 8c
4c 7d 1a 1f 5c bc 57 e2 06 11 80 4e 37 87 d7 b4 a4 b5 f0 8e d8
fd 70 bd ae ad e0 22 60 b1 2a b8 42 ef 69 0b 4a 3e e7 91 1e 84
1b 37 4e cd 5e bb bc 2a 54 d0 47 b6 00 33 6d d7 d0 c8 8b 4b c1
0e 58 ee 6c b6 56 de 72 47 fa 20 d8 e9 1d eb 84 62 86 08 cf 80
61 5b 62 e9 6c 14 91 c7 ac 37 55 eb 69 01 40 5d 34 74 fe 1a c7
9d 10 6a 0c ee 56 c2 57 7f c8 84 80 f9 6c b6 b8 c6 81 b7 b6 8b
53 c1 46 09 39 08 f3 50 88 81 75 bd fb 0b 1e 31 ad 61 e3 0b a0
ad fe 6d 22 3a a0 3c 07 83 b5 00 1a 57 58 7c 32 8a 9a fc fc fb
97 8d 1c d4 32 8f 7d 9d 60 53 0e 63 0b ef d9 6c 0c 81 6e e2 0b
01 00 76 8a e2 a6 df 51 fc 68 f1 72 74 0a 79 af 11 39 8e e3 be
12 52 49 1f a9 c6 93 47 9e 87 7f 94 ab 7c 5f 8c ad 48 02 03 e6
ab 7b 87 dd 71 e8 a0 72 91 13 df 17 f5 ee e8 6c e1 08 d1 d7 20
07 ec 1c d1 3c 85 a6 c1 49 62 1e 77 b7 d7 8d 80 5a 30 f0 be 03
0c 31 5e 54
{server} derive secret "tls13 c ap traffic":
PRK (32 octets): 11 31 54 5d 0b af 79 dd ce 9b 87 f0 69 45 78 1a
57 dd 18 ef 37 8d cd 20 60 f8 f9 a5 69 02 7e d8
hash (32 octets): 50 f6 3c bf 36 b0 dd 04 9e 7a 0b a2 7d 64 55 74
5e a2 aa ac 54 bb 16 7f 99 50 b2 b7 ce 95 09 da
Thomson Informational [Page 38]
RFC 8448 TLS 1.3 Traces January 2019
info (54 octets): 00 20 12 74 6c 73 31 33 20 63 20 61 70 20 74 72
61 66 66 69 63 20 50 f6 3c bf 36 b0 dd 04 9e 7a 0b a2 7d 64 55
74 5e a2 aa ac 54 bb 16 7f 99 50 b2 b7 ce 95 09 da
expanded (32 octets): 75 ec f4 b9 72 52 5a a0 dc d0 57 c9 94 4d
4c d5 d8 26 71 d8 84 31 41 d7 dc 2a 4f f1 5a 21 dc 51
{server} derive secret "tls13 s ap traffic":
PRK (32 octets): 11 31 54 5d 0b af 79 dd ce 9b 87 f0 69 45 78 1a
57 dd 18 ef 37 8d cd 20 60 f8 f9 a5 69 02 7e d8
hash (32 octets): 50 f6 3c bf 36 b0 dd 04 9e 7a 0b a2 7d 64 55 74
5e a2 aa ac 54 bb 16 7f 99 50 b2 b7 ce 95 09 da
info (54 octets): 00 20 12 74 6c 73 31 33 20 73 20 61 70 20 74 72
61 66 66 69 63 20 50 f6 3c bf 36 b0 dd 04 9e 7a 0b a2 7d 64 55
74 5e a2 aa ac 54 bb 16 7f 99 50 b2 b7 ce 95 09 da
expanded (32 octets): 5c 74 f8 7d f0 42 25 db 0f 82 09 c9 de 64
29 e4 94 35 fd ef a7 ca d6 18 64 87 4d 12 f3 1c fc 8d
{server} derive secret "tls13 exp master":
PRK (32 octets): 11 31 54 5d 0b af 79 dd ce 9b 87 f0 69 45 78 1a
57 dd 18 ef 37 8d cd 20 60 f8 f9 a5 69 02 7e d8
hash (32 octets): 50 f6 3c bf 36 b0 dd 04 9e 7a 0b a2 7d 64 55 74
5e a2 aa ac 54 bb 16 7f 99 50 b2 b7 ce 95 09 da
info (52 octets): 00 20 10 74 6c 73 31 33 20 65 78 70 20 6d 61 73
74 65 72 20 50 f6 3c bf 36 b0 dd 04 9e 7a 0b a2 7d 64 55 74 5e
a2 aa ac 54 bb 16 7f 99 50 b2 b7 ce 95 09 da
expanded (32 octets): 7c 06 d3 ae 10 6a 3a 37 4a ce 48 37 b3 98
5c ac 67 78 0a 6e 2c 5c 04 b5 83 19 d5 84 df 09 d2 23
{server} derive write traffic keys for application data:
PRK (32 octets): 5c 74 f8 7d f0 42 25 db 0f 82 09 c9 de 64 29 e4
94 35 fd ef a7 ca d6 18 64 87 4d 12 f3 1c fc 8d
key info (13 octets): 00 10 09 74 6c 73 31 33 20 6b 65 79 00
key expanded (16 octets): f2 7a 5d 97 bd 25 55 0c 48 23 b0 f3 e5
d2 93 88
iv info (12 octets): 00 0c 08 74 6c 73 31 33 20 69 76 00
Thomson Informational [Page 39]
RFC 8448 TLS 1.3 Traces January 2019
iv expanded (12 octets): 0d d6 31 f7 b7 1c bb c7 97 c3 5f e7
{server} derive read traffic keys for handshake data:
PRK (32 octets): 15 8a a7 ab 88 55 07 35 82 b4 1d 67 4b 40 55 ca
bc c5 34 72 8f 65 93 14 86 1b 4e 08 e2 01 15 66
key info (13 octets): 00 10 09 74 6c 73 31 33 20 6b 65 79 00
key expanded (16 octets): 2f 1f 91 86 63 d5 90 e7 42 11 49 a2 9d
94 b0 b6
iv info (12 octets): 00 0c 08 74 6c 73 31 33 20 69 76 00
iv expanded (12 octets): 41 4d 54 85 23 5e 1a 68 87 93 bd 74
{client} extract secret "early" (same as server early secret)
{client} derive secret for handshake "tls13 derived":
PRK (32 octets): 33 ad 0a 1c 60 7e c0 3b 09 e6 cd 98 93 68 0c e2
10 ad f3 00 aa 1f 26 60 e1 b2 2e 10 f1 70 f9 2a
hash (32 octets): e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24
27 ae 41 e4 64 9b 93 4c a4 95 99 1b 78 52 b8 55
info (49 octets): 00 20 0d 74 6c 73 31 33 20 64 65 72 69 76 65 64
20 e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24 27 ae 41 e4
64 9b 93 4c a4 95 99 1b 78 52 b8 55
expanded (32 octets): 6f 26 15 a1 08 c7 02 c5 67 8f 54 fc 9d ba
b6 97 16 c0 76 18 9c 48 25 0c eb ea c3 57 6c 36 11 ba
{client} extract secret "handshake" (same as server handshake
secret)
{client} derive secret "tls13 c hs traffic" (same as server)
{client} derive secret "tls13 s hs traffic" (same as server)
{client} derive secret for master "tls13 derived" (same as server)
{client} extract secret "master" (same as server master secret)
{client} derive read traffic keys for handshake data (same as server
handshake data write traffic keys)
{client} calculate finished "tls13 finished" (same as server)
Thomson Informational [Page 40]
RFC 8448 TLS 1.3 Traces January 2019
{client} derive secret "tls13 c ap traffic" (same as server)
{client} derive secret "tls13 s ap traffic" (same as server)
{client} derive secret "tls13 exp master" (same as server)
{client} derive write traffic keys for handshake data (same as
server handshake data read traffic keys)
{client} derive read traffic keys for application data (same as
server application data write traffic keys)
{client} calculate finished "tls13 finished":
PRK (32 octets): 15 8a a7 ab 88 55 07 35 82 b4 1d 67 4b 40 55 ca
bc c5 34 72 8f 65 93 14 86 1b 4e 08 e2 01 15 66
hash (0 octets): (empty)
info (18 octets): 00 20 0e 74 6c 73 31 33 20 66 69 6e 69 73 68 65
64 00
expanded (32 octets): 81 be 41 31 fb b9 b6 f4 47 14 50 84 6f 74
fd 1e 68 c5 22 4b a7 c2 a8 67 7f 5c 53 ad 22 6f dc 13
finished (32 octets): 23 f5 2f db 07 09 a5 5b d7 f7 9b 99 1f 25
48 40 87 bc fd 4d 43 80 b1 23 26 a5 2a 28 b2 e3 68 e1
{client} construct a Finished handshake message:
Finished (36 octets): 14 00 00 20 23 f5 2f db 07 09 a5 5b d7 f7
9b 99 1f 25 48 40 87 bc fd 4d 43 80 b1 23 26 a5 2a 28 b2 e3 68
e1
{client} send handshake record:
payload (36 octets): 14 00 00 20 23 f5 2f db 07 09 a5 5b d7 f7 9b
99 1f 25 48 40 87 bc fd 4d 43 80 b1 23 26 a5 2a 28 b2 e3 68 e1
complete record (58 octets): 17 03 03 00 35 d7 4f 19 23 c6 62 fd
34 13 7c 6f 50 2f 3d d2 b9 3d 95 1d 1b 3b c9 7e 42 af e2 3c 31
ab ea 92 fe 91 b4 74 99 9e 85 e3 b7 91 ce 25 2f e8 c3 e9 f9 39
a4 12 0c b2
{client} derive write traffic keys for application data:
PRK (32 octets): 75 ec f4 b9 72 52 5a a0 dc d0 57 c9 94 4d 4c d5
d8 26 71 d8 84 31 41 d7 dc 2a 4f f1 5a 21 dc 51
Thomson Informational [Page 41]
RFC 8448 TLS 1.3 Traces January 2019
key info (13 octets): 00 10 09 74 6c 73 31 33 20 6b 65 79 00
key expanded (16 octets): a7 eb 2a 05 25 eb 43 31 d5 8f cb f9 f7
ca 2e 9c
iv info (12 octets): 00 0c 08 74 6c 73 31 33 20 69 76 00
iv expanded (12 octets): 86 e8 be 22 7c 1b d2 b3 e3 9c b4 44
{client} derive secret "tls13 res master":
PRK (32 octets): 11 31 54 5d 0b af 79 dd ce 9b 87 f0 69 45 78 1a
57 dd 18 ef 37 8d cd 20 60 f8 f9 a5 69 02 7e d8
hash (32 octets): 0e 8b 34 91 58 b8 55 fd cd 0c 11 db bc 4e 83 e4
3c aa 6e 48 3c 6c 65 df 53 15 18 88 e5 01 65 f4
info (52 octets): 00 20 10 74 6c 73 31 33 20 72 65 73 20 6d 61 73
74 65 72 20 0e 8b 34 91 58 b8 55 fd cd 0c 11 db bc 4e 83 e4 3c
aa 6e 48 3c 6c 65 df 53 15 18 88 e5 01 65 f4
expanded (32 octets): 09 17 0c 6d 47 27 21 56 6f 9c f9 9b 08 69
9d af f5 61 ec 8f b2 2d 5a 32 c3 f9 4c e0 09 b6 99 75
{server} calculate finished "tls13 finished" (same as client)
{server} derive read traffic keys for application data (same as
client application data write traffic keys)
{server} derive secret "tls13 res master" (same as client)
{client} send alert record:
payload (2 octets): 01 00
complete record (24 octets): 17 03 03 00 13 2e a6 cd f7 49 19 60
23 e2 b3 a4 94 91 69 55 36 42 60 47
{server} send alert record:
payload (2 octets): 01 00
complete record (24 octets): 17 03 03 00 13 51 9f c5 07 5c b0 88
43 49 75 9f f9 ef 6f 01 1b b4 c6 f2
Thomson Informational [Page 42]
RFC 8448 TLS 1.3 Traces January 2019
6. Client Authentication
In this example, the server requests client authentication. The
client uses a certificate with an RSA key, the server uses an
Elliptic Curve Digital Signature Algorithm (ECDSA) certificate with a
P-256 key. Note that private keys for the certificates used in this
example are not shown.
{client} create an ephemeral x25519 key pair:
private key (32 octets): c0 40 b2 bb 8f 3a dd d2 0f d4 05 8c 54
70 03 a3 c6 f9 c1 cd 91 5d 5e 53 5c 87 d8 d1 91 aa f0 71
public key (32 octets): 08 9c c2 67 1f 73 8d 9a 67 1e 5b 2e 46 49
81 d0 5b 76 e3 61 aa 22 ae a9 1f 1d 49 ca 10 a7 a3 62
{client} construct a ClientHello handshake message:
ClientHello (192 octets): 01 00 00 bc 03 03 6a 47 22 36 32 8b 83
af 40 38 6d 3a 3e 1f 1c e6 24 fa 4e d8 9a b8 65 a4 ff 0f 41 44
ce 3a e2 33 00 00 06 13 01 13 03 13 02 01 00 00 8d 00 00 00 0b
00 09 00 00 06 73 65 72 76 65 72 ff 01 00 01 00 00 0a 00 14 00
12 00 1d 00 17 00 18 00 19 01 00 01 01 01 02 01 03 01 04 00 33
00 26 00 24 00 1d 00 20 08 9c c2 67 1f 73 8d 9a 67 1e 5b 2e 46
49 81 d0 5b 76 e3 61 aa 22 ae a9 1f 1d 49 ca 10 a7 a3 62 00 2b
00 03 02 03 04 00 0d 00 20 00 1e 04 03 05 03 06 03 02 03 08 04
08 05 08 06 04 01 05 01 06 01 02 01 04 02 05 02 06 02 02 02 00
2d 00 02 01 01 00 1c 00 02 40 01
{client} send handshake record:
payload (192 octets): 01 00 00 bc 03 03 6a 47 22 36 32 8b 83 af
40 38 6d 3a 3e 1f 1c e6 24 fa 4e d8 9a b8 65 a4 ff 0f 41 44 ce
3a e2 33 00 00 06 13 01 13 03 13 02 01 00 00 8d 00 00 00 0b 00
09 00 00 06 73 65 72 76 65 72 ff 01 00 01 00 00 0a 00 14 00 12
00 1d 00 17 00 18 00 19 01 00 01 01 01 02 01 03 01 04 00 33 00
26 00 24 00 1d 00 20 08 9c c2 67 1f 73 8d 9a 67 1e 5b 2e 46 49
81 d0 5b 76 e3 61 aa 22 ae a9 1f 1d 49 ca 10 a7 a3 62 00 2b 00
03 02 03 04 00 0d 00 20 00 1e 04 03 05 03 06 03 02 03 08 04 08
05 08 06 04 01 05 01 06 01 02 01 04 02 05 02 06 02 02 02 00 2d
00 02 01 01 00 1c 00 02 40 01
complete record (197 octets): 16 03 01 00 c0 01 00 00 bc 03 03 6a
47 22 36 32 8b 83 af 40 38 6d 3a 3e 1f 1c e6 24 fa 4e d8 9a b8
65 a4 ff 0f 41 44 ce 3a e2 33 00 00 06 13 01 13 03 13 02 01 00
00 8d 00 00 00 0b 00 09 00 00 06 73 65 72 76 65 72 ff 01 00 01
00 00 0a 00 14 00 12 00 1d 00 17 00 18 00 19 01 00 01 01 01 02
01 03 01 04 00 33 00 26 00 24 00 1d 00 20 08 9c c2 67 1f 73 8d
Thomson Informational [Page 43]
RFC 8448 TLS 1.3 Traces January 2019
9a 67 1e 5b 2e 46 49 81 d0 5b 76 e3 61 aa 22 ae a9 1f 1d 49 ca
10 a7 a3 62 00 2b 00 03 02 03 04 00 0d 00 20 00 1e 04 03 05 03
06 03 02 03 08 04 08 05 08 06 04 01 05 01 06 01 02 01 04 02 05
02 06 02 02 02 00 2d 00 02 01 01 00 1c 00 02 40 01
{server} extract secret "early":
salt: 0 (all zero octets)
IKM (32 octets): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
secret (32 octets): 33 ad 0a 1c 60 7e c0 3b 09 e6 cd 98 93 68 0c
e2 10 ad f3 00 aa 1f 26 60 e1 b2 2e 10 f1 70 f9 2a
{server} create an ephemeral x25519 key pair:
private key (32 octets): 73 82 a5 ad 1c dd 20 56 ae 18 cc 70 8b
d0 07 d9 81 30 db e2 cd 4d 9e ad 9b 96 95 2b ec bb 08 88
public key (32 octets): 6c 2e 50 e8 65 91 9a 6b 5a 12 df af 91 8f
92 b4 42 56 7b 0f 89 bc 54 47 8c 69 21 36 66 58 f0 62
{server} construct a ServerHello handshake message:
ServerHello (90 octets): 02 00 00 56 03 03 3b 50 fd f1 c3 d5 72
e4 0e 68 95 3e 7f ff 4e 27 58 45 9c 59 af a0 58 2c 0e a0 32 87
42 55 fe 6e 00 13 01 00 00 2e 00 33 00 24 00 1d 00 20 6c 2e 50
e8 65 91 9a 6b 5a 12 df af 91 8f 92 b4 42 56 7b 0f 89 bc 54 47
8c 69 21 36 66 58 f0 62 00 2b 00 02 03 04
{server} derive secret for handshake "tls13 derived":
PRK (32 octets): 33 ad 0a 1c 60 7e c0 3b 09 e6 cd 98 93 68 0c e2
10 ad f3 00 aa 1f 26 60 e1 b2 2e 10 f1 70 f9 2a
hash (32 octets): e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24
27 ae 41 e4 64 9b 93 4c a4 95 99 1b 78 52 b8 55
info (49 octets): 00 20 0d 74 6c 73 31 33 20 64 65 72 69 76 65 64
20 e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24 27 ae 41 e4
64 9b 93 4c a4 95 99 1b 78 52 b8 55
expanded (32 octets): 6f 26 15 a1 08 c7 02 c5 67 8f 54 fc 9d ba
b6 97 16 c0 76 18 9c 48 25 0c eb ea c3 57 6c 36 11 ba
Thomson Informational [Page 44]
RFC 8448 TLS 1.3 Traces January 2019
{server} extract secret "handshake":
salt (32 octets): 6f 26 15 a1 08 c7 02 c5 67 8f 54 fc 9d ba b6 97
16 c0 76 18 9c 48 25 0c eb ea c3 57 6c 36 11 ba
IKM (32 octets): 7d c1 14 f6 47 5d fa 79 77 be 73 6e f7 cb eb c4
8c 70 32 9e 8e 9a 74 b4 d7 03 3c 43 f9 59 7d 4f
secret (32 octets): d9 95 24 36 74 fb 64 00 d7 d3 7b c0 e9 86 1b
db d9 ed 09 56 01 dc f2 99 48 74 f2 80 3d e2 2e 39
{server} derive secret "tls13 c hs traffic":
PRK (32 octets): d9 95 24 36 74 fb 64 00 d7 d3 7b c0 e9 86 1b db
d9 ed 09 56 01 dc f2 99 48 74 f2 80 3d e2 2e 39
hash (32 octets): 88 eb c0 42 bd 0d 5a 64 3b 22 fc a7 a4 7d ef d4
00 7d fe 18 49 49 a6 26 1c 59 6c 4e 00 2a 74 a2
info (54 octets): 00 20 12 74 6c 73 31 33 20 63 20 68 73 20 74 72
61 66 66 69 63 20 88 eb c0 42 bd 0d 5a 64 3b 22 fc a7 a4 7d ef
d4 00 7d fe 18 49 49 a6 26 1c 59 6c 4e 00 2a 74 a2
expanded (32 octets): ce c7 a3 0c 68 72 07 0f 22 a7 ee b0 65 76
8d b6 7c 45 e2 95 33 db 87 99 08 ce 6d c6 6f 59 11 de
{server} derive secret "tls13 s hs traffic":
PRK (32 octets): d9 95 24 36 74 fb 64 00 d7 d3 7b c0 e9 86 1b db
d9 ed 09 56 01 dc f2 99 48 74 f2 80 3d e2 2e 39
hash (32 octets): 88 eb c0 42 bd 0d 5a 64 3b 22 fc a7 a4 7d ef d4
00 7d fe 18 49 49 a6 26 1c 59 6c 4e 00 2a 74 a2
info (54 octets): 00 20 12 74 6c 73 31 33 20 73 20 68 73 20 74 72
61 66 66 69 63 20 88 eb c0 42 bd 0d 5a 64 3b 22 fc a7 a4 7d ef
d4 00 7d fe 18 49 49 a6 26 1c 59 6c 4e 00 2a 74 a2
expanded (32 octets): 8b 02 d3 c0 04 42 a2 72 2c 40 98 eb e8 67
5b 23 e8 01 51 0f 0d 7e d7 78 d8 eb 0b 8f 42 a1 9a 5e
{server} derive secret for master "tls13 derived":
PRK (32 octets): d9 95 24 36 74 fb 64 00 d7 d3 7b c0 e9 86 1b db
d9 ed 09 56 01 dc f2 99 48 74 f2 80 3d e2 2e 39
hash (32 octets): e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24
27 ae 41 e4 64 9b 93 4c a4 95 99 1b 78 52 b8 55
Thomson Informational [Page 45]
RFC 8448 TLS 1.3 Traces January 2019
info (49 octets): 00 20 0d 74 6c 73 31 33 20 64 65 72 69 76 65 64
20 e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24 27 ae 41 e4
64 9b 93 4c a4 95 99 1b 78 52 b8 55
expanded (32 octets): 74 57 55 26 b0 7c 81 a9 c1 b1 7e 6b 34 e0
e6 d0 84 74 7a 61 f3 96 f5 97 eb b9 2c 07 36 ec 60 e8
{server} extract secret "master":
salt (32 octets): 74 57 55 26 b0 7c 81 a9 c1 b1 7e 6b 34 e0 e6 d0
84 74 7a 61 f3 96 f5 97 eb b9 2c 07 36 ec 60 e8
IKM (32 octets): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
secret (32 octets): 57 c1 5d 7b 9d 44 1b 3d 40 a9 c6 ea 8a 3d 73
0e 07 b3 a1 ea 7a 33 39 ed 70 70 b9 a7 4a 3f 4f 28
{server} send handshake record:
payload (90 octets): 02 00 00 56 03 03 3b 50 fd f1 c3 d5 72 e4 0e
68 95 3e 7f ff 4e 27 58 45 9c 59 af a0 58 2c 0e a0 32 87 42 55
fe 6e 00 13 01 00 00 2e 00 33 00 24 00 1d 00 20 6c 2e 50 e8 65
91 9a 6b 5a 12 df af 91 8f 92 b4 42 56 7b 0f 89 bc 54 47 8c 69
21 36 66 58 f0 62 00 2b 00 02 03 04
complete record (95 octets): 16 03 03 00 5a 02 00 00 56 03 03 3b
50 fd f1 c3 d5 72 e4 0e 68 95 3e 7f ff 4e 27 58 45 9c 59 af a0
58 2c 0e a0 32 87 42 55 fe 6e 00 13 01 00 00 2e 00 33 00 24 00
1d 00 20 6c 2e 50 e8 65 91 9a 6b 5a 12 df af 91 8f 92 b4 42 56
7b 0f 89 bc 54 47 8c 69 21 36 66 58 f0 62 00 2b 00 02 03 04
{server} derive write traffic keys for handshake data:
PRK (32 octets): 8b 02 d3 c0 04 42 a2 72 2c 40 98 eb e8 67 5b 23
e8 01 51 0f 0d 7e d7 78 d8 eb 0b 8f 42 a1 9a 5e
key info (13 octets): 00 10 09 74 6c 73 31 33 20 6b 65 79 00
key expanded (16 octets): 6c b6 e6 06 19 d8 c7 35 5c 5d 4c 4b c2
be 90 d5
iv info (12 octets): 00 0c 08 74 6c 73 31 33 20 69 76 00
iv expanded (12 octets): 64 f2 39 53 0c 3b 88 8f de 85 e0 be
Thomson Informational [Page 46]
RFC 8448 TLS 1.3 Traces January 2019
{server} construct an EncryptedExtensions handshake message:
EncryptedExtensions (40 octets): 08 00 00 24 00 22 00 0a 00 14 00
12 00 1d 00 17 00 18 00 19 01 00 01 01 01 02 01 03 01 04 00 1c
00 02 40 01 00 00 00 00
{server} construct a CertificateRequest handshake message:
CertificateRequest (43 octets): 0d 00 00 27 00 00 24 00 0d 00 20
00 1e 04 03 05 03 06 03 02 03 08 04 08 05 08 06 04 01 05 01 06
01 02 01 04 02 05 02 06 02 02 02
{server} construct a Certificate handshake message:
Certificate (319 octets): 0b 00 01 3b 00 00 01 37 00 01 32 30 82
01 2e 30 81 d5 a0 03 02 01 02 02 01 07 30 0a 06 08 2a 86 48 ce
3d 04 03 02 30 13 31 11 30 0f 06 03 55 04 03 13 08 65 63 64 73
61 32 35 36 30 1e 17 0d 31 36 30 37 33 30 30 31 32 34 30 30 5a
17 0d 32 36 30 37 33 30 30 31 32 34 30 30 5a 30 13 31 11 30 0f
06 03 55 04 03 13 08 65 63 64 73 61 32 35 36 30 59 30 13 06 07
2a 86 48 ce 3d 02 01 06 08 2a 86 48 ce 3d 03 01 07 03 42 00 04
08 d5 30 16 15 75 f4 cf e7 f1 54 ee 34 48 18 00 86 00 1e 88 43
1a 79 ee 62 ee 6e 2f 83 ef 38 ba 61 e9 fb 37 f3 4e 00 7a 7d f4
d2 f5 b5 6d 1f 04 ec e4 5d 62 1f 46 84 06 f5 c3 a1 51 58 94 8d
d0 a3 1a 30 18 30 09 06 03 55 1d 13 04 02 30 00 30 0b 06 03 55
1d 0f 04 04 03 02 07 80 30 0a 06 08 2a 86 48 ce 3d 04 03 02 03
48 00 30 45 02 21 00 df 30 fd 45 07 f5 ed d2 2c 1a 6f f8 6d b4
79 ca 69 3f ee ca 3b 71 b3 f9 ef 55 6b 29 37 c0 59 4d 02 20 62
e2 a4 72 50 d3 20 fe a8 3c 7e 2d cb 5b 76 a5 0e 02 00 c0 9a db
d1 3f ee 94 6e 51 3e 01 1d 11 00 00
{server} construct a CertificateVerify handshake message:
CertificateVerify (79 octets): 0f 00 00 4b 04 03 00 47 30 45 02
21 00 d7 a4 d3 4b d5 4f 55 fe e1 a8 96 25 67 8c 3d d5 e5 f6 0d
ac 73 ec 94 0c 5c 7b 93 04 a0 20 84 a9 02 20 28 9f 59 5e d4 88
b9 ac 68 9a 3d 19 2b 1a 8b b3 8f 34 af 78 74 c0 59 c9 80 6a 1f
38 26 93 53 e8
{server} calculate finished "tls13 finished":
PRK (32 octets): 8b 02 d3 c0 04 42 a2 72 2c 40 98 eb e8 67 5b 23
e8 01 51 0f 0d 7e d7 78 d8 eb 0b 8f 42 a1 9a 5e
hash (0 octets): (empty)
info (18 octets): 00 20 0e 74 6c 73 31 33 20 66 69 6e 69 73 68 65
64 00
Thomson Informational [Page 47]
RFC 8448 TLS 1.3 Traces January 2019
expanded (32 octets): 4e 79 5c de 23 9d 5e 19 0e ae 44 1b 9e 71
6e eb 13 85 49 05 8c db 76 fa 9a ee af 54 8a ef 56 3e
finished (32 octets): 93 b7 0c df 47 81 98 5b 96 34 5c aa c7 01
b4 e7 50 d3 04 2d f1 a6 89 d8 fa ca 81 22 51 11 3c 11
{server} construct a Finished handshake message:
Finished (36 octets): 14 00 00 20 93 b7 0c df 47 81 98 5b 96 34
5c aa c7 01 b4 e7 50 d3 04 2d f1 a6 89 d8 fa ca 81 22 51 11 3c
11
{server} send handshake record:
payload (517 octets): 08 00 00 24 00 22 00 0a 00 14 00 12 00 1d
00 17 00 18 00 19 01 00 01 01 01 02 01 03 01 04 00 1c 00 02 40
01 00 00 00 00 0d 00 00 27 00 00 24 00 0d 00 20 00 1e 04 03 05
03 06 03 02 03 08 04 08 05 08 06 04 01 05 01 06 01 02 01 04 02
05 02 06 02 02 02 0b 00 01 3b 00 00 01 37 00 01 32 30 82 01 2e
30 81 d5 a0 03 02 01 02 02 01 07 30 0a 06 08 2a 86 48 ce 3d 04
03 02 30 13 31 11 30 0f 06 03 55 04 03 13 08 65 63 64 73 61 32
35 36 30 1e 17 0d 31 36 30 37 33 30 30 31 32 34 30 30 5a 17 0d
32 36 30 37 33 30 30 31 32 34 30 30 5a 30 13 31 11 30 0f 06 03
55 04 03 13 08 65 63 64 73 61 32 35 36 30 59 30 13 06 07 2a 86
48 ce 3d 02 01 06 08 2a 86 48 ce 3d 03 01 07 03 42 00 04 08 d5
30 16 15 75 f4 cf e7 f1 54 ee 34 48 18 00 86 00 1e 88 43 1a 79
ee 62 ee 6e 2f 83 ef 38 ba 61 e9 fb 37 f3 4e 00 7a 7d f4 d2 f5
b5 6d 1f 04 ec e4 5d 62 1f 46 84 06 f5 c3 a1 51 58 94 8d d0 a3
1a 30 18 30 09 06 03 55 1d 13 04 02 30 00 30 0b 06 03 55 1d 0f
04 04 03 02 07 80 30 0a 06 08 2a 86 48 ce 3d 04 03 02 03 48 00
30 45 02 21 00 df 30 fd 45 07 f5 ed d2 2c 1a 6f f8 6d b4 79 ca
69 3f ee ca 3b 71 b3 f9 ef 55 6b 29 37 c0 59 4d 02 20 62 e2 a4
72 50 d3 20 fe a8 3c 7e 2d cb 5b 76 a5 0e 02 00 c0 9a db d1 3f
ee 94 6e 51 3e 01 1d 11 00 00 0f 00 00 4b 04 03 00 47 30 45 02
21 00 d7 a4 d3 4b d5 4f 55 fe e1 a8 96 25 67 8c 3d d5 e5 f6 0d
ac 73 ec 94 0c 5c 7b 93 04 a0 20 84 a9 02 20 28 9f 59 5e d4 88
b9 ac 68 9a 3d 19 2b 1a 8b b3 8f 34 af 78 74 c0 59 c9 80 6a 1f
38 26 93 53 e8 14 00 00 20 93 b7 0c df 47 81 98 5b 96 34 5c aa
c7 01 b4 e7 50 d3 04 2d f1 a6 89 d8 fa ca 81 22 51 11 3c 11
complete record (539 octets): 17 03 03 02 16 6d 0a 7a c0 79 b3 2a
94 aa 68 c4 e2 89 3e 8b d0 d3 c1 85 f5 49 c2 36 fb bc e3 d6 47
f0 8f 3c 94 a2 bf 42 4d 87 08 88 36 05 ad 89 55 f9 77 18 b0 21
3d ea d1 3d fb 23 eb b8 38 1d a5 82 75 66 12 bc b5 a5 d4 08 47
71 9f be 9f 17 9b fa e6 56 f3 ec fd 59 a4 c0 d3 51 32 ce 41 8a
7e 46 f6 b6 a6 06 22 f8 a6 c0 6b 28 d8 33 60 16 35 63 be 9c 37
f9 7e b9 02 32 69 24 a7 2b 3e d8 c8 38 12 77 d1 58 1c ab 9c 37
15 ac 24 01 39 84 67 ad 7e bf ab 3d 0c 34 19 e7 50 10 4f 7d 62
Thomson Informational [Page 48]
RFC 8448 TLS 1.3 Traces January 2019
c5 02 79 01 f2 e4 cd 4c a5 b8 07 1e b0 3d 3c 73 2d 83 21 50 66
df c4 d2 91 d4 c1 ff 3b 8d 7e 42 98 f6 77 d4 d5 1d ea 11 68 d8
f1 6c b2 7b a4 02 66 31 3a 1f ed f9 e2 3c c7 7f 76 54 50 f9 e9
6f 05 d0 8f 3d a2 45 b1 4d 49 46 f0 7e c8 1e ed 6d 56 f2 6b d5
74 f0 b7 f7 c7 04 70 37 c1 6f ce 3b 23 75 4e 66 2f ad 73 e2 b7
21 3f 6a f2 96 76 9c 99 a1 d3 8e 62 32 e0 ec 8d c4 f8 4d 6a a6
f7 de 38 87 be 00 57 86 2f 90 18 e0 ab 39 67 05 aa 40 90 ab 5f
2d ff 63 25 a5 57 e7 32 0d 4e ff d4 6b b4 f9 97 d1 63 20 7c ce
66 65 29 4a a4 46 55 41 e3 fe 37 ee 73 50 65 9e a5 50 d6 dc b6
af 3c 51 88 52 c7 a1 4c 3c c1 5b c3 2b 32 73 bd f1 75 1d a1 84
20 31 35 b1 17 d3 00 20 4f b1 2d 58 ca 9a c3 4b 68 ec a2 70 30
83 2f 7a 4b 46 d2 a5 57 57 f6 3f e8 f6 e8 5a c4 74 69 e6 19 8d
a8 8a 64 58 6b f2 3c 69 59 0d e8 22 26 3b e7 5f d8 36 84 72 40
c4 8f 8c 14 5c d6 bd 69 89 62 e7 ed c2 34 eb e5 92 31 35 1e ef
8d 76 52 cf 3b 08 ab 3a f6 e5 ec 74 c5 8a 8d a3 4b 39 f9 b0 d6
c4 27 9a 9a 1f 82 07 17 29 e7 05 9d d7 f7 b9 5b 94 33 c4 68 4c
e1 89 1a 6d 33 43 2d 52 ed db 0b 8c ee 91 81 d4 03 ec cc 12 99
1f 1a d4 aa 62 c3 60 49 71 3a 7b b1 35 fd da 66 61 a0 5a 93 f8
c1 6f
{server} derive secret "tls13 c ap traffic":
PRK (32 octets): 57 c1 5d 7b 9d 44 1b 3d 40 a9 c6 ea 8a 3d 73 0e
07 b3 a1 ea 7a 33 39 ed 70 70 b9 a7 4a 3f 4f 28
hash (32 octets): 51 77 a2 9a f5 a1 7f 9b 49 33 e4 31 85 1d 12 83
45 36 6c 17 20 d3 8f 8f 04 65 ee ea e6 74 03 72
info (54 octets): 00 20 12 74 6c 73 31 33 20 63 20 61 70 20 74 72
61 66 66 69 63 20 51 77 a2 9a f5 a1 7f 9b 49 33 e4 31 85 1d 12
83 45 36 6c 17 20 d3 8f 8f 04 65 ee ea e6 74 03 72
expanded (32 octets): 73 c2 e8 90 fa 8d 06 72 58 d6 d5 0f a9 2f
e4 56 b0 98 cf 00 d9 72 7e ed 91 e8 89 2e f4 e6 f8 60
{server} derive secret "tls13 s ap traffic":
PRK (32 octets): 57 c1 5d 7b 9d 44 1b 3d 40 a9 c6 ea 8a 3d 73 0e
07 b3 a1 ea 7a 33 39 ed 70 70 b9 a7 4a 3f 4f 28
hash (32 octets): 51 77 a2 9a f5 a1 7f 9b 49 33 e4 31 85 1d 12 83
45 36 6c 17 20 d3 8f 8f 04 65 ee ea e6 74 03 72
info (54 octets): 00 20 12 74 6c 73 31 33 20 73 20 61 70 20 74 72
61 66 66 69 63 20 51 77 a2 9a f5 a1 7f 9b 49 33 e4 31 85 1d 12
83 45 36 6c 17 20 d3 8f 8f 04 65 ee ea e6 74 03 72
Thomson Informational [Page 49]
RFC 8448 TLS 1.3 Traces January 2019
expanded (32 octets): c4 9a 91 fa f5 7f 8c 54 5d 50 48 a0 15 bf
84 9f f6 39 42 e4 a7 ed cd 31 9f 8b 43 8a 97 c5 2e 21
{server} derive secret "tls13 exp master":
PRK (32 octets): 57 c1 5d 7b 9d 44 1b 3d 40 a9 c6 ea 8a 3d 73 0e
07 b3 a1 ea 7a 33 39 ed 70 70 b9 a7 4a 3f 4f 28
hash (32 octets): 51 77 a2 9a f5 a1 7f 9b 49 33 e4 31 85 1d 12 83
45 36 6c 17 20 d3 8f 8f 04 65 ee ea e6 74 03 72
info (52 octets): 00 20 10 74 6c 73 31 33 20 65 78 70 20 6d 61 73
74 65 72 20 51 77 a2 9a f5 a1 7f 9b 49 33 e4 31 85 1d 12 83 45
36 6c 17 20 d3 8f 8f 04 65 ee ea e6 74 03 72
expanded (32 octets): 05 2e 39 79 5e 5f 2b e6 e4 e0 97 4c fd d8
6c 6a 7a fe 3e 57 e5 58 98 10 a3 cc cf 64 29 58 be b2
{server} derive write traffic keys for application data:
PRK (32 octets): c4 9a 91 fa f5 7f 8c 54 5d 50 48 a0 15 bf 84 9f
f6 39 42 e4 a7 ed cd 31 9f 8b 43 8a 97 c5 2e 21
key info (13 octets): 00 10 09 74 6c 73 31 33 20 6b 65 79 00
key expanded (16 octets): 88 b3 12 3d de ca df 8c 1b a2 98 e2 c1
81 76 b0
iv info (12 octets): 00 0c 08 74 6c 73 31 33 20 69 76 00
iv expanded (12 octets): 4e 09 78 51 3f 9d e8 32 7c 08 e4 f3
{server} derive read traffic keys for handshake data:
PRK (32 octets): ce c7 a3 0c 68 72 07 0f 22 a7 ee b0 65 76 8d b6
7c 45 e2 95 33 db 87 99 08 ce 6d c6 6f 59 11 de
key info (13 octets): 00 10 09 74 6c 73 31 33 20 6b 65 79 00
key expanded (16 octets): 91 69 48 f7 28 d9 82 3f a4 1a 00 4d 08
3f 21 7f
iv info (12 octets): 00 0c 08 74 6c 73 31 33 20 69 76 00
iv expanded (12 octets): 64 15 3d 79 ba c9 ea 10 ca 5a 0a 88
{client} extract secret "early" (same as server early secret)
Thomson Informational [Page 50]
RFC 8448 TLS 1.3 Traces January 2019
{client} derive secret for handshake "tls13 derived":
PRK (32 octets): 33 ad 0a 1c 60 7e c0 3b 09 e6 cd 98 93 68 0c e2
10 ad f3 00 aa 1f 26 60 e1 b2 2e 10 f1 70 f9 2a
hash (32 octets): e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24
27 ae 41 e4 64 9b 93 4c a4 95 99 1b 78 52 b8 55
info (49 octets): 00 20 0d 74 6c 73 31 33 20 64 65 72 69 76 65 64
20 e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24 27 ae 41 e4
64 9b 93 4c a4 95 99 1b 78 52 b8 55
expanded (32 octets): 6f 26 15 a1 08 c7 02 c5 67 8f 54 fc 9d ba
b6 97 16 c0 76 18 9c 48 25 0c eb ea c3 57 6c 36 11 ba
{client} extract secret "handshake" (same as server handshake
secret)
{client} derive secret "tls13 c hs traffic" (same as server)
{client} derive secret "tls13 s hs traffic" (same as server)
{client} derive secret for master "tls13 derived" (same as server)
{client} extract secret "master" (same as server master secret)
{client} derive read traffic keys for handshake data (same as server
handshake data write traffic keys)
{client} calculate finished "tls13 finished" (same as server)
{client} derive secret "tls13 c ap traffic" (same as server)
{client} derive secret "tls13 s ap traffic" (same as server)
{client} derive secret "tls13 exp master" (same as server)
{client} derive write traffic keys for handshake data (same as
server handshake data read traffic keys)
{client} derive read traffic keys for application data (same as
server application data write traffic keys)
{client} construct a Certificate handshake message:
Certificate (451 octets): 0b 00 01 bf 00 00 01 bb 00 01 b6 30 82
01 b2 30 82 01 1b a0 03 02 01 02 02 01 01 30 0d 06 09 2a 86 48
86 f7 0d 01 01 0b 05 00 30 11 31 0f 30 0d 06 03 55 04 03 13 06
Thomson Informational [Page 51]
RFC 8448 TLS 1.3 Traces January 2019
63 6c 69 65 6e 74 30 1e 17 0d 31 36 30 37 33 30 30 31 32 33 35
39 5a 17 0d 32 36 30 37 33 30 30 31 32 33 35 39 5a 30 11 31 0f
30 0d 06 03 55 04 03 13 06 63 6c 69 65 6e 74 30 81 9f 30 0d 06
09 2a 86 48 86 f7 0d 01 01 01 05 00 03 81 8d 00 30 81 89 02 81
81 00 c3 81 75 e0 04 a6 8d 09 3f 82 3b 9c 37 9d 20 1f bc 0b b7
a1 c7 91 90 5e 3f bf 76 84 7e 44 e7 51 eb bc d3 60 bd 94 5c 81
e5 22 2b cc 88 46 d3 a8 a0 f9 3e 9b f5 be ba bd 92 ed f1 de 1f
f1 90 21 70 3e 7a b6 c0 90 15 13 f9 7e 39 b1 11 f0 9c 93 48 97
1c 7b 21 19 84 a7 54 cd 45 fe 09 5a f0 ea 42 36 82 9b cc f7 a7
fe 9b 28 88 e7 8a b4 77 69 0a 5b 9e 1c cb e9 1c 6a 4a 0f 97 a7
e0 28 42 01 02 03 01 00 01 a3 1a 30 18 30 09 06 03 55 1d 13 04
02 30 00 30 0b 06 03 55 1d 0f 04 04 03 02 07 80 30 0d 06 09 2a
86 48 86 f7 0d 01 01 0b 05 00 03 81 81 00 1a 7a 5a 01 85 32 b0
22 af 07 67 d4 86 16 0c ff 2d 16 7a 19 15 d2 38 35 b5 45 94 91
6d c6 80 be 5d 2e 62 60 76 c5 d5 27 22 eb cc 77 5d 7d 99 f9 80
be 2f c9 4d 34 ac f6 cc 00 ba 90 cb cf b0 60 8a a1 e7 e3 97 1e
f0 c0 7a 41 d4 7a d8 34 5d 1f 81 fe 41 8a 1c f4 10 54 42 9f d2
17 bd 77 7d c1 cf 08 f0 5d f9 07 99 c6 59 36 1e 0f 1a 8e e4 ac
0f 78 97 42 0b db c8 23 da 80 a2 f2 ba 23 08 1c 00 00
{client} construct a CertificateVerify handshake message:
CertificateVerify (136 octets): 0f 00 00 84 08 04 00 80 18 6b 22
23 b5 03 a7 59 c3 5d ba 0e 97 21 b4 b5 79 13 8d 5f 0f 5e 6e c7
fe aa f2 7f 3a d7 f3 86 c2 c7 bd 7c b2 be 52 fb f5 ed 83 93 f4
06 ee 79 36 96 92 ec 7a c6 95 65 1d 85 82 19 e6 72 a8 eb 7b 2a
67 7b 64 0b 46 ab 63 0e dc 5f 3f 2f 82 72 b9 c0 d9 06 f8 1f 84
dd c5 b8 c7 bc f9 55 c7 8a 3c f9 9e 50 16 f7 3e 04 eb 7d fc b2
88 33 f1 3e 8f 75 ec 2f f3 58 1e 2f 09 8a d4 15 7f d6 d6 ad
{client} calculate finished "tls13 finished":
PRK (32 octets): ce c7 a3 0c 68 72 07 0f 22 a7 ee b0 65 76 8d b6
7c 45 e2 95 33 db 87 99 08 ce 6d c6 6f 59 11 de
hash (0 octets): (empty)
info (18 octets): 00 20 0e 74 6c 73 31 33 20 66 69 6e 69 73 68 65
64 00
expanded (32 octets): 4f dd d7 6b bc b8 e3 0c 72 61 b1 db 40 1b
b1 36 ed 39 bc e6 a4 81 5a 21 24 47 6e 27 e6 cb cb f6
finished (32 octets): 9a fe 2b a2 f6 3a 09 d2 29 d8 a4 29 e5 b3
7f fd 9f cc 73 bd b5 91 1b 82 42 59 72 aa 28 92 44 0f
Thomson Informational [Page 52]
RFC 8448 TLS 1.3 Traces January 2019
{client} construct a Finished handshake message:
Finished (36 octets): 14 00 00 20 9a fe 2b a2 f6 3a 09 d2 29 d8
a4 29 e5 b3 7f fd 9f cc 73 bd b5 91 1b 82 42 59 72 aa 28 92 44
0f
{client} send handshake record:
payload (623 octets): 0b 00 01 bf 00 00 01 bb 00 01 b6 30 82 01
b2 30 82 01 1b a0 03 02 01 02 02 01 01 30 0d 06 09 2a 86 48 86
f7 0d 01 01 0b 05 00 30 11 31 0f 30 0d 06 03 55 04 03 13 06 63
6c 69 65 6e 74 30 1e 17 0d 31 36 30 37 33 30 30 31 32 33 35 39
5a 17 0d 32 36 30 37 33 30 30 31 32 33 35 39 5a 30 11 31 0f 30
0d 06 03 55 04 03 13 06 63 6c 69 65 6e 74 30 81 9f 30 0d 06 09
2a 86 48 86 f7 0d 01 01 01 05 00 03 81 8d 00 30 81 89 02 81 81
00 c3 81 75 e0 04 a6 8d 09 3f 82 3b 9c 37 9d 20 1f bc 0b b7 a1
c7 91 90 5e 3f bf 76 84 7e 44 e7 51 eb bc d3 60 bd 94 5c 81 e5
22 2b cc 88 46 d3 a8 a0 f9 3e 9b f5 be ba bd 92 ed f1 de 1f f1
90 21 70 3e 7a b6 c0 90 15 13 f9 7e 39 b1 11 f0 9c 93 48 97 1c
7b 21 19 84 a7 54 cd 45 fe 09 5a f0 ea 42 36 82 9b cc f7 a7 fe
9b 28 88 e7 8a b4 77 69 0a 5b 9e 1c cb e9 1c 6a 4a 0f 97 a7 e0
28 42 01 02 03 01 00 01 a3 1a 30 18 30 09 06 03 55 1d 13 04 02
30 00 30 0b 06 03 55 1d 0f 04 04 03 02 07 80 30 0d 06 09 2a 86
48 86 f7 0d 01 01 0b 05 00 03 81 81 00 1a 7a 5a 01 85 32 b0 22
af 07 67 d4 86 16 0c ff 2d 16 7a 19 15 d2 38 35 b5 45 94 91 6d
c6 80 be 5d 2e 62 60 76 c5 d5 27 22 eb cc 77 5d 7d 99 f9 80 be
2f c9 4d 34 ac f6 cc 00 ba 90 cb cf b0 60 8a a1 e7 e3 97 1e f0
c0 7a 41 d4 7a d8 34 5d 1f 81 fe 41 8a 1c f4 10 54 42 9f d2 17
bd 77 7d c1 cf 08 f0 5d f9 07 99 c6 59 36 1e 0f 1a 8e e4 ac 0f
78 97 42 0b db c8 23 da 80 a2 f2 ba 23 08 1c 00 00 0f 00 00 84
08 04 00 80 18 6b 22 23 b5 03 a7 59 c3 5d ba 0e 97 21 b4 b5 79
13 8d 5f 0f 5e 6e c7 fe aa f2 7f 3a d7 f3 86 c2 c7 bd 7c b2 be
52 fb f5 ed 83 93 f4 06 ee 79 36 96 92 ec 7a c6 95 65 1d 85 82
19 e6 72 a8 eb 7b 2a 67 7b 64 0b 46 ab 63 0e dc 5f 3f 2f 82 72
b9 c0 d9 06 f8 1f 84 dd c5 b8 c7 bc f9 55 c7 8a 3c f9 9e 50 16
f7 3e 04 eb 7d fc b2 88 33 f1 3e 8f 75 ec 2f f3 58 1e 2f 09 8a
d4 15 7f d6 d6 ad 14 00 00 20 9a fe 2b a2 f6 3a 09 d2 29 d8 a4
29 e5 b3 7f fd 9f cc 73 bd b5 91 1b 82 42 59 72 aa 28 92 44 0f
complete record (645 octets): 17 03 03 02 80 b4 6a 63 93 4e 67 38
41 ab af 26 74 03 bc 67 7f 6b 6d 2a 1e 2f 12 bb 5f 62 68 3b fe
36 a8 26 73 f0 6d 62 87 dd d6 09 bc f2 f5 fd 32 25 92 3d 24 af
3c 76 68 2c 18 0e e5 71 a1 7c a4 bf be 2f 51 0d c9 a0 e1 fc a5
cf f2 ce e8 7d 11 cb 53 1a 6e f9 0b f5 30 9a 6b 63 bb bc 0b 88
ea 45 10 3a 43 04 09 15 43 85 9f a1 1e c0 32 ed 87 34 44 cd 51
85 ea d5 f6 a7 64 20 f0 f0 28 6a ce f8 02 c8 e4 78 8c 23 27 5f
1b 06 da 60 0f 4a 7d ec d0 bc 59 d7 be f1 0e 64 9a e3 26 90 39
7f c3 d4 ed 6f 30 f8 01 d8 cd 56 9b 71 ad 4f a0 5e a7 cf 2a c2
Thomson Informational [Page 53]
RFC 8448 TLS 1.3 Traces January 2019
df a1 50 d2 20 50 5d 40 11 b3 4d 09 d5 38 53 eb a6 1a 10 1e 4f
8d ca 47 d8 17 1a 88 4b 19 25 9a 3d d4 8c 5a c1 41 98 3e dc 77
81 4d 25 e7 f6 6b bb db 90 96 83 92 66 e0 65 61 82 8e cf b2 7e
af d4 e9 e8 1a 0b 96 e3 bf a4 2d ae 5a d8 03 59 b9 a6 66 14 02
c3 a2 10 41 77 03 01 06 db d8 f6 5b b6 a0 15 9d 51 2e b1 3a f2
2a 25 9f 31 3b d5 8c 2e 21 fe 05 3d 57 f2 a9 62 b0 a4 ea 68 2c
96 f7 0b 79 b5 60 13 61 92 82 3b 27 be 6a 2f b7 b1 c7 51 cc c0
e3 30 36 15 54 14 85 b7 b3 07 b4 23 33 2c 11 ef a8 0b 72 f9 b8
0a 53 e5 3f 7b b3 8a 3a f4 c5 9f 80 08 ba d0 54 4e 56 14 e6 88
ff 57 bc cd 69 35 f8 1f 44 7f 42 0c 1c 1b f4 05 88 18 e9 0b f5
dc 71 6c ca e4 25 24 85 6d f8 25 0b cd bd 7a f6 5f 82 dd 53 06
1d 02 4f 6d 2f f5 c1 1e 37 92 a9 a7 0e 0e e2 a3 c2 0a 1b 96 8a
c3 91 f8 f9 28 31 13 5d 25 24 2a da 2f e2 41 c2 65 3e c9 96 33
9d fa 12 df ae 7a 33 73 df 88 b0 7c a2 7a ef 6d c2 66 a2 5f 13
f7 5c 76 03 9c 1f 46 fd 7a 53 ae 63 99 c9 99 f4 b2 ae e1 8e 48
0d 6d 12 bf ae 22 6b bd c9 2a 6a d5 0b 4d 3b ac 7a bc 3b 36 51
eb 5b e5 6f 33 bf 41 12 7b 3c a8 86 dc 71 4a 50 d1 49 03 57 bd
40 d9 fd 6b e4 22 09 a4 dd b9 eb b2 98 7e 29 f1 20 f0 58 14 61
4d 2c 79 32 00 15 b4 61 fe 73 24 44 76 70 a1 af 5f 65 ca ed 15
b4 74 ab 7f aa 49 50 16 ad f8 08 e5 3b 94 ef 54 af bb 0e 0a 3a
27 32 ab 59 7f 7d 59 23 c7 73 86 aa 51 24 73 1f 8c c7 3e 70 3b
34 1c 17 5a 45 49 39 a7 7a b6 43 13 c1 5c f3 fe 03 c4 f3 38 42
56 49 76
{client} derive write traffic keys for application data:
PRK (32 octets): 73 c2 e8 90 fa 8d 06 72 58 d6 d5 0f a9 2f e4 56
b0 98 cf 00 d9 72 7e ed 91 e8 89 2e f4 e6 f8 60
key info (13 octets): 00 10 09 74 6c 73 31 33 20 6b 65 79 00
key expanded (16 octets): cd c0 9c 80 6a a8 f8 6d fc d5 1e fc 44
a0 c0 39
iv info (12 octets): 00 0c 08 74 6c 73 31 33 20 69 76 00
iv expanded (12 octets): 6e f8 52 e7 8b 46 d9 13 66 8e 53 e7
{client} derive secret "tls13 res master":
PRK (32 octets): 57 c1 5d 7b 9d 44 1b 3d 40 a9 c6 ea 8a 3d 73 0e
07 b3 a1 ea 7a 33 39 ed 70 70 b9 a7 4a 3f 4f 28
hash (32 octets): 39 1d 00 4b d8 4c 83 1b 15 82 44 44 14 b4 dc 80
64 01 0e cc 76 f3 7f 88 bf eb 1e 88 fe 13 5c 25
Thomson Informational [Page 54]
RFC 8448 TLS 1.3 Traces January 2019
info (52 octets): 00 20 10 74 6c 73 31 33 20 72 65 73 20 6d 61 73
74 65 72 20 39 1d 00 4b d8 4c 83 1b 15 82 44 44 14 b4 dc 80 64
01 0e cc 76 f3 7f 88 bf eb 1e 88 fe 13 5c 25
expanded (32 octets): 10 06 dc cb f4 0e b4 eb 97 8b ff 03 92 a9
e4 52 a4 fb ad 58 aa 14 78 4d 5a 24 1c 6b 49 da cc fb
{server} calculate finished "tls13 finished" (same as client)
{server} derive read traffic keys for application data (same as
client application data write traffic keys)
{server} derive secret "tls13 res master" (same as client)
{client} send alert record:
payload (2 octets): 01 00
complete record (24 octets): 17 03 03 00 13 e4 ad 7d 44 c2 92 45
33 9d 35 59 62 c7 79 b8 9e f4 4c 58
{server} send alert record:
payload (2 octets): 01 00
complete record (24 octets): 17 03 03 00 13 1d ec c5 d6 e6 4b ba
8a 6f 21 b4 fd 07 74 97 da 2a 90 cb
7. Compatibility Mode
This example shows use of the handshake with the client requesting
that the server use compatibility mode as defined in Appendix D.4 of
[TLS13].
{client} create an ephemeral x25519 key pair:
private key (32 octets): de a0 0b 45 69 5d c7 81 f1 9d 34 a6 2c
1a fd 31 ab 43 69 af 1e 85 5a 3b bb 25 8d 84 42 cd e6 d7
public key (32 octets): 8e 72 92 cf 30 56 db b0 d2 5f cb e5 5c 10
7d c9 bb f8 3d d9 70 8f 39 20 3b a3 41 24 9a 7d 9b 63
{client} construct a ClientHello handshake message:
ClientHello (224 octets): 01 00 00 dc 03 03 4e 64 0a 3f 2c 27 38
f0 9c 94 18 bd 78 ed cc d7 55 9d 05 31 19 92 76 d4 d9 2a 0e 9e
e9 d7 7d 09 20 a8 0c 16 55 81 a8 e0 d0 6c 00 18 d5 4d 3a 06 dd
32 cf d4 05 1e b0 26 fa d3 fd 0b a9 92 69 e6 ef 00 06 13 01 13
Thomson Informational [Page 55]
RFC 8448 TLS 1.3 Traces January 2019
03 13 02 01 00 00 8d 00 00 00 0b 00 09 00 00 06 73 65 72 76 65
72 ff 01 00 01 00 00 0a 00 14 00 12 00 1d 00 17 00 18 00 19 01
00 01 01 01 02 01 03 01 04 00 33 00 26 00 24 00 1d 00 20 8e 72
92 cf 30 56 db b0 d2 5f cb e5 5c 10 7d c9 bb f8 3d d9 70 8f 39
20 3b a3 41 24 9a 7d 9b 63 00 2b 00 03 02 03 04 00 0d 00 20 00
1e 04 03 05 03 06 03 02 03 08 04 08 05 08 06 04 01 05 01 06 01
02 01 04 02 05 02 06 02 02 02 00 2d 00 02 01 01 00 1c 00 02 40
01
{client} send handshake record:
payload (224 octets): 01 00 00 dc 03 03 4e 64 0a 3f 2c 27 38 f0
9c 94 18 bd 78 ed cc d7 55 9d 05 31 19 92 76 d4 d9 2a 0e 9e e9
d7 7d 09 20 a8 0c 16 55 81 a8 e0 d0 6c 00 18 d5 4d 3a 06 dd 32
cf d4 05 1e b0 26 fa d3 fd 0b a9 92 69 e6 ef 00 06 13 01 13 03
13 02 01 00 00 8d 00 00 00 0b 00 09 00 00 06 73 65 72 76 65 72
ff 01 00 01 00 00 0a 00 14 00 12 00 1d 00 17 00 18 00 19 01 00
01 01 01 02 01 03 01 04 00 33 00 26 00 24 00 1d 00 20 8e 72 92
cf 30 56 db b0 d2 5f cb e5 5c 10 7d c9 bb f8 3d d9 70 8f 39 20
3b a3 41 24 9a 7d 9b 63 00 2b 00 03 02 03 04 00 0d 00 20 00 1e
04 03 05 03 06 03 02 03 08 04 08 05 08 06 04 01 05 01 06 01 02
01 04 02 05 02 06 02 02 02 00 2d 00 02 01 01 00 1c 00 02 40 01
complete record (229 octets): 16 03 01 00 e0 01 00 00 dc 03 03 4e
64 0a 3f 2c 27 38 f0 9c 94 18 bd 78 ed cc d7 55 9d 05 31 19 92
76 d4 d9 2a 0e 9e e9 d7 7d 09 20 a8 0c 16 55 81 a8 e0 d0 6c 00
18 d5 4d 3a 06 dd 32 cf d4 05 1e b0 26 fa d3 fd 0b a9 92 69 e6
ef 00 06 13 01 13 03 13 02 01 00 00 8d 00 00 00 0b 00 09 00 00
06 73 65 72 76 65 72 ff 01 00 01 00 00 0a 00 14 00 12 00 1d 00
17 00 18 00 19 01 00 01 01 01 02 01 03 01 04 00 33 00 26 00 24
00 1d 00 20 8e 72 92 cf 30 56 db b0 d2 5f cb e5 5c 10 7d c9 bb
f8 3d d9 70 8f 39 20 3b a3 41 24 9a 7d 9b 63 00 2b 00 03 02 03
04 00 0d 00 20 00 1e 04 03 05 03 06 03 02 03 08 04 08 05 08 06
04 01 05 01 06 01 02 01 04 02 05 02 06 02 02 02 00 2d 00 02 01
01 00 1c 00 02 40 01
{server} extract secret "early":
salt: 0 (all zero octets)
IKM (32 octets): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
secret (32 octets): 33 ad 0a 1c 60 7e c0 3b 09 e6 cd 98 93 68 0c
e2 10 ad f3 00 aa 1f 26 60 e1 b2 2e 10 f1 70 f9 2a
Thomson Informational [Page 56]
RFC 8448 TLS 1.3 Traces January 2019
{server} create an ephemeral x25519 key pair:
private key (32 octets): 01 7c 38 a3 64 79 21 ca 2d 9e d6 bd 7a
e7 13 2b 94 21 1b 13 31 bb 20 8c 8c cd d5 15 56 40 99 95
public key (32 octets): 3e 30 f0 f4 ba 55 1a fd 62 76 83 41 17 5f
52 65 e4 da f0 c8 84 16 17 aa 4f af dd 21 42 32 0c 22
{server} construct a ServerHello handshake message:
ServerHello (122 octets): 02 00 00 76 03 03 e5 dd 59 48 c4 35 f7
a3 8f 0f 01 30 70 8d c3 22 d9 df 09 ab d4 83 81 17 c1 83 a7 bb
6d 99 4f 2c 20 a8 0c 16 55 81 a8 e0 d0 6c 00 18 d5 4d 3a 06 dd
32 cf d4 05 1e b0 26 fa d3 fd 0b a9 92 69 e6 ef 13 01 00 00 2e
00 33 00 24 00 1d 00 20 3e 30 f0 f4 ba 55 1a fd 62 76 83 41 17
5f 52 65 e4 da f0 c8 84 16 17 aa 4f af dd 21 42 32 0c 22 00 2b
00 02 03 04
{server} send handshake record:
payload (122 octets): 02 00 00 76 03 03 e5 dd 59 48 c4 35 f7 a3
8f 0f 01 30 70 8d c3 22 d9 df 09 ab d4 83 81 17 c1 83 a7 bb 6d
99 4f 2c 20 a8 0c 16 55 81 a8 e0 d0 6c 00 18 d5 4d 3a 06 dd 32
cf d4 05 1e b0 26 fa d3 fd 0b a9 92 69 e6 ef 13 01 00 00 2e 00
33 00 24 00 1d 00 20 3e 30 f0 f4 ba 55 1a fd 62 76 83 41 17 5f
52 65 e4 da f0 c8 84 16 17 aa 4f af dd 21 42 32 0c 22 00 2b 00
02 03 04
complete record (127 octets): 16 03 03 00 7a 02 00 00 76 03 03 e5
dd 59 48 c4 35 f7 a3 8f 0f 01 30 70 8d c3 22 d9 df 09 ab d4 83
81 17 c1 83 a7 bb 6d 99 4f 2c 20 a8 0c 16 55 81 a8 e0 d0 6c 00
18 d5 4d 3a 06 dd 32 cf d4 05 1e b0 26 fa d3 fd 0b a9 92 69 e6
ef 13 01 00 00 2e 00 33 00 24 00 1d 00 20 3e 30 f0 f4 ba 55 1a
fd 62 76 83 41 17 5f 52 65 e4 da f0 c8 84 16 17 aa 4f af dd 21
42 32 0c 22 00 2b 00 02 03 04
{server} send change_cipher_spec record:
payload (1 octets): 01
complete record (6 octets): 14 03 03 00 01 01
{server} derive secret for handshake "tls13 derived":
PRK (32 octets): 33 ad 0a 1c 60 7e c0 3b 09 e6 cd 98 93 68 0c e2
10 ad f3 00 aa 1f 26 60 e1 b2 2e 10 f1 70 f9 2a
Thomson Informational [Page 57]
RFC 8448 TLS 1.3 Traces January 2019
hash (32 octets): e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24
27 ae 41 e4 64 9b 93 4c a4 95 99 1b 78 52 b8 55
info (49 octets): 00 20 0d 74 6c 73 31 33 20 64 65 72 69 76 65 64
20 e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24 27 ae 41 e4
64 9b 93 4c a4 95 99 1b 78 52 b8 55
expanded (32 octets): 6f 26 15 a1 08 c7 02 c5 67 8f 54 fc 9d ba
b6 97 16 c0 76 18 9c 48 25 0c eb ea c3 57 6c 36 11 ba
{server} extract secret "handshake":
salt (32 octets): 6f 26 15 a1 08 c7 02 c5 67 8f 54 fc 9d ba b6 97
16 c0 76 18 9c 48 25 0c eb ea c3 57 6c 36 11 ba
IKM (32 octets): ee f7 90 55 90 77 db 5b b6 3b 66 84 e4 16 9f 05
1e 8f b3 4c e5 9b af ce 2f 9c 8e e6 8c c4 eb 79
secret (32 octets): f9 17 61 35 4a 67 e9 b0 7c 6d cc 3a 55 70 7e
fa 69 c4 51 9d 80 40 e5 f2 15 12 1e 0d f6 9a fa 4a
{server} derive secret "tls13 c hs traffic":
PRK (32 octets): f9 17 61 35 4a 67 e9 b0 7c 6d cc 3a 55 70 7e fa
69 c4 51 9d 80 40 e5 f2 15 12 1e 0d f6 9a fa 4a
hash (32 octets): 74 5c 55 ba c3 99 31 0b 7b 5a 7c 81 a2 c1 30 b4
d5 6d ff 6f 68 c3 ab 47 78 57 60 1e 01 f1 f8 d1
info (54 octets): 00 20 12 74 6c 73 31 33 20 63 20 68 73 20 74 72
61 66 66 69 63 20 74 5c 55 ba c3 99 31 0b 7b 5a 7c 81 a2 c1 30
b4 d5 6d ff 6f 68 c3 ab 47 78 57 60 1e 01 f1 f8 d1
expanded (32 octets): 2c 3c b2 4a 10 81 ed b5 95 18 ee 68 61 e8
9a 6b 72 b3 80 1a fe 77 13 e4 cb bc 21 c0 79 5b f8 31
{server} derive secret "tls13 s hs traffic":
PRK (32 octets): f9 17 61 35 4a 67 e9 b0 7c 6d cc 3a 55 70 7e fa
69 c4 51 9d 80 40 e5 f2 15 12 1e 0d f6 9a fa 4a
hash (32 octets): 74 5c 55 ba c3 99 31 0b 7b 5a 7c 81 a2 c1 30 b4
d5 6d ff 6f 68 c3 ab 47 78 57 60 1e 01 f1 f8 d1
info (54 octets): 00 20 12 74 6c 73 31 33 20 73 20 68 73 20 74 72
61 66 66 69 63 20 74 5c 55 ba c3 99 31 0b 7b 5a 7c 81 a2 c1 30
b4 d5 6d ff 6f 68 c3 ab 47 78 57 60 1e 01 f1 f8 d1
Thomson Informational [Page 58]
RFC 8448 TLS 1.3 Traces January 2019
expanded (32 octets): ca ce 3d 55 5c c1 c5 77 cf 97 0c ff 28 cf
97 8d 6a 98 00 08 54 42 e1 8d 69 5b 50 f3 15 1d 18 c8
{server} derive secret for master "tls13 derived":
PRK (32 octets): f9 17 61 35 4a 67 e9 b0 7c 6d cc 3a 55 70 7e fa
69 c4 51 9d 80 40 e5 f2 15 12 1e 0d f6 9a fa 4a
hash (32 octets): e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24
27 ae 41 e4 64 9b 93 4c a4 95 99 1b 78 52 b8 55
info (49 octets): 00 20 0d 74 6c 73 31 33 20 64 65 72 69 76 65 64
20 e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24 27 ae 41 e4
64 9b 93 4c a4 95 99 1b 78 52 b8 55
expanded (32 octets): 5d a1 2d c4 78 35 ba 73 fd d9 94 b1 4a b7
e6 3c c6 3f 0d 79 16 2f 67 56 e9 a4 67 56 c8 b2 b6 42
{server} extract secret "master":
salt (32 octets): 5d a1 2d c4 78 35 ba 73 fd d9 94 b1 4a b7 e6 3c
c6 3f 0d 79 16 2f 67 56 e9 a4 67 56 c8 b2 b6 42
IKM (32 octets): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
secret (32 octets): 62 81 12 da e2 f7 02 48 80 63 e4 2d e6 c8 50
a5 c0 82 0b 90 90 3e 00 ab c3 18 75 da 03 d4 bc 5b
{server} derive write traffic keys for handshake data:
PRK (32 octets): ca ce 3d 55 5c c1 c5 77 cf 97 0c ff 28 cf 97 8d
6a 98 00 08 54 42 e1 8d 69 5b 50 f3 15 1d 18 c8
key info (13 octets): 00 10 09 74 6c 73 31 33 20 6b 65 79 00
key expanded (16 octets): 04 10 91 fd ab 29 f2 c8 ab fb 15 6d c5
fc 8d 54
iv info (12 octets): 00 0c 08 74 6c 73 31 33 20 69 76 00
iv expanded (12 octets): 74 64 d7 91 68 5d e0 59 98 fc ba db
{server} construct an EncryptedExtensions handshake message:
EncryptedExtensions (40 octets): 08 00 00 24 00 22 00 0a 00 14 00
12 00 1d 00 17 00 18 00 19 01 00 01 01 01 02 01 03 01 04 00 1c
00 02 40 01 00 00 00 00
Thomson Informational [Page 59]
RFC 8448 TLS 1.3 Traces January 2019
{server} construct a Certificate handshake message:
Certificate (445 octets): 0b 00 01 b9 00 00 01 b5 00 01 b0 30 82
01 ac 30 82 01 15 a0 03 02 01 02 02 01 02 30 0d 06 09 2a 86 48
86 f7 0d 01 01 0b 05 00 30 0e 31 0c 30 0a 06 03 55 04 03 13 03
72 73 61 30 1e 17 0d 31 36 30 37 33 30 30 31 32 33 35 39 5a 17
0d 32 36 30 37 33 30 30 31 32 33 35 39 5a 30 0e 31 0c 30 0a 06
03 55 04 03 13 03 72 73 61 30 81 9f 30 0d 06 09 2a 86 48 86 f7
0d 01 01 01 05 00 03 81 8d 00 30 81 89 02 81 81 00 b4 bb 49 8f
82 79 30 3d 98 08 36 39 9b 36 c6 98 8c 0c 68 de 55 e1 bd b8 26
d3 90 1a 24 61 ea fd 2d e4 9a 91 d0 15 ab bc 9a 95 13 7a ce 6c
1a f1 9e aa 6a f9 8c 7c ed 43 12 09 98 e1 87 a8 0e e0 cc b0 52
4b 1b 01 8c 3e 0b 63 26 4d 44 9a 6d 38 e2 2a 5f da 43 08 46 74
80 30 53 0e f0 46 1c 8c a9 d9 ef bf ae 8e a6 d1 d0 3e 2b d1 93
ef f0 ab 9a 80 02 c4 74 28 a6 d3 5a 8d 88 d7 9f 7f 1e 3f 02 03
01 00 01 a3 1a 30 18 30 09 06 03 55 1d 13 04 02 30 00 30 0b 06
03 55 1d 0f 04 04 03 02 05 a0 30 0d 06 09 2a 86 48 86 f7 0d 01
01 0b 05 00 03 81 81 00 85 aa d2 a0 e5 b9 27 6b 90 8c 65 f7 3a
72 67 17 06 18 a5 4c 5f 8a 7b 33 7d 2d f7 a5 94 36 54 17 f2 ea
e8 f8 a5 8c 8f 81 72 f9 31 9c f3 6b 7f d6 c5 5b 80 f2 1a 03 01
51 56 72 60 96 fd 33 5e 5e 67 f2 db f1 02 70 2e 60 8c ca e6 be
c1 fc 63 a4 2a 99 be 5c 3e b7 10 7c 3c 54 e9 b9 eb 2b d5 20 3b
1c 3b 84 e0 a8 b2 f7 59 40 9b a3 ea c9 d9 1d 40 2d cc 0c c8 f8
96 12 29 ac 91 87 b4 2b 4d e1 00 00
{server} construct a CertificateVerify handshake message:
CertificateVerify (136 octets): 0f 00 00 84 08 04 00 80 a2 30 1a
68 dd 1c ee e6 93 8f e9 d4 0c 46 b9 20 1b 34 d5 99 52 a3 7e 06
52 3a 39 cf 8b a6 c9 c8 b6 8a e9 44 92 af 78 05 16 ed 7b 73 c8
28 12 e9 9d d3 fa be a4 5e 09 d9 c6 84 87 21 c2 80 8c 61 50 1b
0c 75 e7 fc ab a5 f7 8b ef 68 a2 c2 b6 9b 19 55 8b 3e 40 38 7e
ea 93 d2 5c 77 81 c1 cc 00 e9 f5 19 f7 e2 e4 ad b7 3e 76 d6 60
89 00 0a 2d c8 66 c2 ed 30 bb a5 0a 0d 45 7f 19 dc 6e b9 f3
{server} calculate finished "tls13 finished":
PRK (32 octets): ca ce 3d 55 5c c1 c5 77 cf 97 0c ff 28 cf 97 8d
6a 98 00 08 54 42 e1 8d 69 5b 50 f3 15 1d 18 c8
hash (0 octets): (empty)
info (18 octets): 00 20 0e 74 6c 73 31 33 20 66 69 6e 69 73 68 65
64 00
expanded (32 octets): 2c 9f 72 f2 7b 81 e7 df 66 8c ac cd 49 37
1f 12 86 d4 11 e1 6c 8c cc 1c 0d 9a ed 72 cb bd c0 80
Thomson Informational [Page 60]
RFC 8448 TLS 1.3 Traces January 2019
finished (32 octets): c8 c3 a8 f1 bf f5 27 40 61 f4 bc 3a 7c af
fb dc 96 16 09 4c a6 25 ca a6 5f 8e 76 ed 46 db 74 d3
{server} construct a Finished handshake message:
Finished (36 octets): 14 00 00 20 c8 c3 a8 f1 bf f5 27 40 61 f4
bc 3a 7c af fb dc 96 16 09 4c a6 25 ca a6 5f 8e 76 ed 46 db 74
d3
{server} send handshake record:
payload (657 octets): 08 00 00 24 00 22 00 0a 00 14 00 12 00 1d
00 17 00 18 00 19 01 00 01 01 01 02 01 03 01 04 00 1c 00 02 40
01 00 00 00 00 0b 00 01 b9 00 00 01 b5 00 01 b0 30 82 01 ac 30
82 01 15 a0 03 02 01 02 02 01 02 30 0d 06 09 2a 86 48 86 f7 0d
01 01 0b 05 00 30 0e 31 0c 30 0a 06 03 55 04 03 13 03 72 73 61
30 1e 17 0d 31 36 30 37 33 30 30 31 32 33 35 39 5a 17 0d 32 36
30 37 33 30 30 31 32 33 35 39 5a 30 0e 31 0c 30 0a 06 03 55 04
03 13 03 72 73 61 30 81 9f 30 0d 06 09 2a 86 48 86 f7 0d 01 01
01 05 00 03 81 8d 00 30 81 89 02 81 81 00 b4 bb 49 8f 82 79 30
3d 98 08 36 39 9b 36 c6 98 8c 0c 68 de 55 e1 bd b8 26 d3 90 1a
24 61 ea fd 2d e4 9a 91 d0 15 ab bc 9a 95 13 7a ce 6c 1a f1 9e
aa 6a f9 8c 7c ed 43 12 09 98 e1 87 a8 0e e0 cc b0 52 4b 1b 01
8c 3e 0b 63 26 4d 44 9a 6d 38 e2 2a 5f da 43 08 46 74 80 30 53
0e f0 46 1c 8c a9 d9 ef bf ae 8e a6 d1 d0 3e 2b d1 93 ef f0 ab
9a 80 02 c4 74 28 a6 d3 5a 8d 88 d7 9f 7f 1e 3f 02 03 01 00 01
a3 1a 30 18 30 09 06 03 55 1d 13 04 02 30 00 30 0b 06 03 55 1d
0f 04 04 03 02 05 a0 30 0d 06 09 2a 86 48 86 f7 0d 01 01 0b 05
00 03 81 81 00 85 aa d2 a0 e5 b9 27 6b 90 8c 65 f7 3a 72 67 17
06 18 a5 4c 5f 8a 7b 33 7d 2d f7 a5 94 36 54 17 f2 ea e8 f8 a5
8c 8f 81 72 f9 31 9c f3 6b 7f d6 c5 5b 80 f2 1a 03 01 51 56 72
60 96 fd 33 5e 5e 67 f2 db f1 02 70 2e 60 8c ca e6 be c1 fc 63
a4 2a 99 be 5c 3e b7 10 7c 3c 54 e9 b9 eb 2b d5 20 3b 1c 3b 84
e0 a8 b2 f7 59 40 9b a3 ea c9 d9 1d 40 2d cc 0c c8 f8 96 12 29
ac 91 87 b4 2b 4d e1 00 00 0f 00 00 84 08 04 00 80 a2 30 1a 68
dd 1c ee e6 93 8f e9 d4 0c 46 b9 20 1b 34 d5 99 52 a3 7e 06 52
3a 39 cf 8b a6 c9 c8 b6 8a e9 44 92 af 78 05 16 ed 7b 73 c8 28
12 e9 9d d3 fa be a4 5e 09 d9 c6 84 87 21 c2 80 8c 61 50 1b 0c
75 e7 fc ab a5 f7 8b ef 68 a2 c2 b6 9b 19 55 8b 3e 40 38 7e ea
93 d2 5c 77 81 c1 cc 00 e9 f5 19 f7 e2 e4 ad b7 3e 76 d6 60 89
00 0a 2d c8 66 c2 ed 30 bb a5 0a 0d 45 7f 19 dc 6e b9 f3 14 00
00 20 c8 c3 a8 f1 bf f5 27 40 61 f4 bc 3a 7c af fb dc 96 16 09
4c a6 25 ca a6 5f 8e 76 ed 46 db 74 d3
complete record (679 octets): 17 03 03 02 a2 48 de 89 1d 9c 36 24
a6 7a 6c 6f 06 01 ab 7a c2 0c 1f 6a 9e 14 d2 e6 00 7e 99 9e 13
03 67 a8 af 1b cf ea 94 98 fb ce 19 df 45 05 ee ce 3a 25 da 52
3c be 55 ea 1b 3b da 4e 91 99 5e 45 5d 50 0a 4f aa 62 27 b7 11
Thomson Informational [Page 61]
RFC 8448 TLS 1.3 Traces January 2019
1e 1c 85 47 e2 d7 c1 79 db 21 53 03 d2 58 27 f3 cd 18 f4 8f 64
91 32 8c f5 c0 f8 14 d3 88 15 0b d9 e9 26 4a ae 49 1d b6 99 50
69 be a1 76 65 d5 e0 c8 17 28 4d 4a c2 18 80 05 4c 36 57 33 1e
23 a9 30 4d c8 8a 15 c0 4e c8 0b d3 85 2b f7 f9 d3 c6 61 5b 15
fa c8 3b bc a0 31 c6 d2 31 0d 9f 5d 7a 4b 02 0a 4f 7c 19 06 2b
65 c0 5a 1d 32 64 b5 57 ec 9d 8e 0f 7c ee 27 e3 6f 79 30 39 de
8d d9 6e df ca 90 09 e0 65 10 34 bf f3 1d 7f 34 9e ec e0 1d 99
fc b5 fc ab 84 0d 77 07 c7 22 99 c3 b5 d0 45 64 e8 80 a3 3c 5e
84 6c 76 2e 3d 92 2b b5 53 03 d1 d8 7c c0 f0 65 73 f1 7d cb 9b
8f fd 35 bb d8 83 c1 cb 3a a2 4f cc 32 50 05 f7 68 ce 2f b6 24
ca 97 b6 c4 d9 8e 17 f3 5b c2 c7 94 0a 06 10 0c 2d 44 8d b7 18
0b 2d 86 21 64 43 5c 9c 21 0e 98 60 39 4e 05 aa b2 3f f1 b0 20
3f 66 2c 58 8d a5 bc 44 11 47 7a 30 b4 11 36 c4 88 a0 a6 3f ca
b5 c1 5a c6 13 22 6d ae 82 7a 1d 1f e9 5e ce 6b 30 bc ee 15 60
a8 d4 08 d2 64 55 5e 76 0f 9b fc 62 4c 2c 87 fd 04 56 c9 bf b4
1b cd 1a 7b 21 27 86 d2 b6 7f d5 78 04 fa cf a1 ee f7 cf 29 19
d8 b9 98 c9 78 9f 76 3b 4d 9c aa 09 3a 9d ed 43 17 5d 46 a7 6b
4d 54 f0 ce 0c 5d 22 59 b6 07 e3 0a 9d 24 12 63 87 4f a5 9d 6f
57 0d c4 0d 83 a2 d8 3b f9 e9 85 0d 45 4c 57 80 65 35 a8 99 8a
e0 35 7d f9 2f 00 b9 66 73 44 c2 41 14 cc c9 ef 53 91 24 b2 04
e7 e6 e7 48 c3 0a 28 a3 d1 d1 83 99 72 43 ea cc bb d3 3b 0c 11
15 a0 32 71 06 a1 e6 a7 52 71 d4 98 30 86 f6 32 ff 0e b8 b4 c6
31 02 cb ce f5 bb 72 da e1 27 9d 5d e8 eb 19 09 6d 8c db 07 fa
8e a9 89 78 8f ac 23 e6 6e 04 88 c1 93 f3 f3 fe a8 c8 83 88 96
bf 3a e4 b6 84 8d 42 ce d4 bd f4 1a be 6f c3 31 b4 42 25 e7 a1
f7 d3 56 41 47 d5 45 8e 71 aa 90 9c b0 2b e9 58 bb c4 2e 3a a5
a2 7c c6 ea f4 b6 fe 51 ae 44 95 69 4d 8a b6 32 0a ab 92 01 83
fd 5b 31 a3 59 04 2f bd 67 39 1e c5 e4 d1 89 2a 2e 52 10 14 1a
49 4e 93 01 b2 4a 11 3c 47 4c 7f 2a 73 45 78 47
{server} derive secret "tls13 c ap traffic":
PRK (32 octets): 62 81 12 da e2 f7 02 48 80 63 e4 2d e6 c8 50 a5
c0 82 0b 90 90 3e 00 ab c3 18 75 da 03 d4 bc 5b
hash (32 octets): 07 07 dc ac 7b 2f a4 28 cc 7f 69 16 94 a2 59 0c
80 6a aa 5c 0c f5 08 7e d5 38 50 12 e7 f9 6c d4
info (54 octets): 00 20 12 74 6c 73 31 33 20 63 20 61 70 20 74 72
61 66 66 69 63 20 07 07 dc ac 7b 2f a4 28 cc 7f 69 16 94 a2 59
0c 80 6a aa 5c 0c f5 08 7e d5 38 50 12 e7 f9 6c d4
expanded (32 octets): 74 3e 4c 6b 56 cf 39 09 d1 b0 6d 01 95 6c
cd 2c 4b 37 75 84 49 ae c4 1d 98 da e4 49 24 ea a2 99
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{server} derive secret "tls13 s ap traffic":
PRK (32 octets): 62 81 12 da e2 f7 02 48 80 63 e4 2d e6 c8 50 a5
c0 82 0b 90 90 3e 00 ab c3 18 75 da 03 d4 bc 5b
hash (32 octets): 07 07 dc ac 7b 2f a4 28 cc 7f 69 16 94 a2 59 0c
80 6a aa 5c 0c f5 08 7e d5 38 50 12 e7 f9 6c d4
info (54 octets): 00 20 12 74 6c 73 31 33 20 73 20 61 70 20 74 72
61 66 66 69 63 20 07 07 dc ac 7b 2f a4 28 cc 7f 69 16 94 a2 59
0c 80 6a aa 5c 0c f5 08 7e d5 38 50 12 e7 f9 6c d4
expanded (32 octets): b6 b8 14 4a a3 35 ed 30 59 c0 c9 c8 f0 ec
ab f7 af c9 4a f6 64 3b de cd fd 92 10 18 8f ab 74 51
{server} derive secret "tls13 exp master":
PRK (32 octets): 62 81 12 da e2 f7 02 48 80 63 e4 2d e6 c8 50 a5
c0 82 0b 90 90 3e 00 ab c3 18 75 da 03 d4 bc 5b
hash (32 octets): 07 07 dc ac 7b 2f a4 28 cc 7f 69 16 94 a2 59 0c
80 6a aa 5c 0c f5 08 7e d5 38 50 12 e7 f9 6c d4
info (52 octets): 00 20 10 74 6c 73 31 33 20 65 78 70 20 6d 61 73
74 65 72 20 07 07 dc ac 7b 2f a4 28 cc 7f 69 16 94 a2 59 0c 80
6a aa 5c 0c f5 08 7e d5 38 50 12 e7 f9 6c d4
expanded (32 octets): fb 69 12 1c ea 33 4d b4 59 e1 22 72 d1 79
ba ca 23 69 b6 43 d1 1a 6a c7 2b 8b 27 a5 c9 64 fe b1
{server} derive write traffic keys for application data:
PRK (32 octets): b6 b8 14 4a a3 35 ed 30 59 c0 c9 c8 f0 ec ab f7
af c9 4a f6 64 3b de cd fd 92 10 18 8f ab 74 51
key info (13 octets): 00 10 09 74 6c 73 31 33 20 6b 65 79 00
key expanded (16 octets): ed c4 cb d0 04 1c 28 cc 71 67 44 1d 7c
a5 3e 6a
iv info (12 octets): 00 0c 08 74 6c 73 31 33 20 69 76 00
iv expanded (12 octets): bf 6c 7d 8e 0a 95 45 b4 27 dc f1 39
{server} derive read traffic keys for handshake data:
PRK (32 octets): 2c 3c b2 4a 10 81 ed b5 95 18 ee 68 61 e8 9a 6b
72 b3 80 1a fe 77 13 e4 cb bc 21 c0 79 5b f8 31
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key info (13 octets): 00 10 09 74 6c 73 31 33 20 6b 65 79 00
key expanded (16 octets): 62 d1 3c 13 ff d7 40 2f c1 c0 9e 3d 16
36 65 cb
iv info (12 octets): 00 0c 08 74 6c 73 31 33 20 69 76 00
iv expanded (12 octets): 71 66 f2 00 28 bf 14 6d cf bd 5a 40
{client} extract secret "early" (same as server early secret)
{client} derive secret for handshake "tls13 derived":
PRK (32 octets): 33 ad 0a 1c 60 7e c0 3b 09 e6 cd 98 93 68 0c e2
10 ad f3 00 aa 1f 26 60 e1 b2 2e 10 f1 70 f9 2a
hash (32 octets): e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24
27 ae 41 e4 64 9b 93 4c a4 95 99 1b 78 52 b8 55
info (49 octets): 00 20 0d 74 6c 73 31 33 20 64 65 72 69 76 65 64
20 e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24 27 ae 41 e4
64 9b 93 4c a4 95 99 1b 78 52 b8 55
expanded (32 octets): 6f 26 15 a1 08 c7 02 c5 67 8f 54 fc 9d ba
b6 97 16 c0 76 18 9c 48 25 0c eb ea c3 57 6c 36 11 ba
{client} extract secret "handshake" (same as server handshake
secret)
{client} derive secret "tls13 c hs traffic" (same as server)
{client} derive secret "tls13 s hs traffic" (same as server)
{client} derive secret for master "tls13 derived" (same as server)
{client} extract secret "master" (same as server master secret)
{client} derive read traffic keys for handshake data (same as server
handshake data write traffic keys)
{client} calculate finished "tls13 finished" (same as server)
{client} derive secret "tls13 c ap traffic" (same as server)
{client} derive secret "tls13 s ap traffic" (same as server)
{client} derive secret "tls13 exp master" (same as server)
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{client} send change_cipher_spec record:
payload (1 octets): 01
complete record (6 octets): 14 03 03 00 01 01
{client} derive write traffic keys for handshake data (same as
server handshake data read traffic keys)
{client} derive read traffic keys for application data (same as
server application data write traffic keys)
{client} calculate finished "tls13 finished":
PRK (32 octets): 2c 3c b2 4a 10 81 ed b5 95 18 ee 68 61 e8 9a 6b
72 b3 80 1a fe 77 13 e4 cb bc 21 c0 79 5b f8 31
hash (0 octets): (empty)
info (18 octets): 00 20 0e 74 6c 73 31 33 20 66 69 6e 69 73 68 65
64 00
expanded (32 octets): 77 34 1a bc 8c 0f fa b5 18 07 36 71 3e 41
d2 f6 65 c4 10 a4 04 c8 c2 1e dc d9 48 a4 44 0f d8 0c
finished (32 octets): 69 2c ab 15 5c c6 c1 00 ea d6 07 33 d0 61
7f 6f b0 9b 71 aa 1e 8c 9a cc bb bc 9e 8e d3 36 c1 dd
{client} construct a Finished handshake message:
Finished (36 octets): 14 00 00 20 69 2c ab 15 5c c6 c1 00 ea d6
07 33 d0 61 7f 6f b0 9b 71 aa 1e 8c 9a cc bb bc 9e 8e d3 36 c1
dd
{client} send handshake record:
payload (36 octets): 14 00 00 20 69 2c ab 15 5c c6 c1 00 ea d6 07
33 d0 61 7f 6f b0 9b 71 aa 1e 8c 9a cc bb bc 9e 8e d3 36 c1 dd
complete record (58 octets): 17 03 03 00 35 32 d0 30 e2 73 77 3a
86 96 c7 99 98 1a f6 ce d0 7f 87 48 2e 81 56 5e 39 4e 87 c8 67
f3 3d f3 d6 5b 75 06 f1 a6 26 af 91 d4 82 1d 5f 7a 1f 21 0e f8
dd 3c 6d 16
{client} derive write traffic keys for application data:
PRK (32 octets): 74 3e 4c 6b 56 cf 39 09 d1 b0 6d 01 95 6c cd 2c
4b 37 75 84 49 ae c4 1d 98 da e4 49 24 ea a2 99
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key info (13 octets): 00 10 09 74 6c 73 31 33 20 6b 65 79 00
key expanded (16 octets): 33 d7 f9 70 97 56 c9 66 48 8a d4 43 84
37 e6 73
iv info (12 octets): 00 0c 08 74 6c 73 31 33 20 69 76 00
iv expanded (12 octets): c5 f3 0d 34 b0 e9 1b 7d 6c 8e ea 65
{client} derive secret "tls13 res master":
PRK (32 octets): 62 81 12 da e2 f7 02 48 80 63 e4 2d e6 c8 50 a5
c0 82 0b 90 90 3e 00 ab c3 18 75 da 03 d4 bc 5b
hash (32 octets): a0 21 d3 a0 5b d4 18 a7 72 81 38 75 ef 79 b0 af
68 c5 12 32 15 42 7a b7 33 3f 8c 27 72 2a 9f d5
info (52 octets): 00 20 10 74 6c 73 31 33 20 72 65 73 20 6d 61 73
74 65 72 20 a0 21 d3 a0 5b d4 18 a7 72 81 38 75 ef 79 b0 af 68
c5 12 32 15 42 7a b7 33 3f 8c 27 72 2a 9f d5
expanded (32 octets): 0b 5d 44 07 ce a0 a4 2a 3a 81 dd 47 76 47
b7 fe 91 80 db 29 7e 51 14 f1 ad 87 96 b4 dc 47 50 04
{server} calculate finished "tls13 finished" (same as client)
{server} derive read traffic keys for application data (same as
client application data write traffic keys)
{server} derive secret "tls13 res master" (same as client)
{client} send alert record:
payload (2 octets): 01 00
complete record (24 octets): 17 03 03 00 13 0f 62 91 55 38 2d ba
23 c4 e2 c5 f7 f8 4e 6f 2e d3 08 3d
{server} send alert record:
payload (2 octets): 01 00
complete record (24 octets): 17 03 03 00 13 b7 25 7b 0f ec af 69
d4 f0 9e 3f 89 1e 2a 25 d1 e2 88 45
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8. Security Considerations
It probably isn't a good idea to use the private key included in this
document. In addition to the fact that it is too small to provide
any meaningful security, it is now very well known.
9. IANA Considerations
This document has no IANA actions.
10. References
10.1. Normative References
[TLS13] Rescorla, E., "The Transport Layer Security (TLS) Protocol
Version 1.3", RFC 8446, DOI 10.17487/RFC8446, August 2018,
<https://www.rfc-editor.org/info/rfc8446>.
10.2. Informative References
[FIPS.186-4.2013]
National Institute of Standards and Technology, "Digital
Signature Standard (DSS)", FIPS 186-4,
DOI 10.6028/NIST.FIPS.186-4, July 2013,
<https://nvlpubs.nist.gov/nistpubs/fips/
nist.fips.186-4.pdf>.
[NSS] Mozilla, "Network Security Services", November 2018,
<https://developer.mozilla.org/en-US/docs/Mozilla/
Projects/NSS>.
[RFC5869] Krawczyk, H. and P. Eronen, "HMAC-based Extract-and-Expand
Key Derivation Function (HKDF)", RFC 5869,
DOI 10.17487/RFC5869, May 2010,
<https://www.rfc-editor.org/info/rfc5869>.
[RFC7748] Langley, A., Hamburg, M., and S. Turner, "Elliptic Curves
for Security", RFC 7748, DOI 10.17487/RFC7748, January
2016, <https://www.rfc-editor.org/info/rfc7748>.
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Acknowledgements
This document was generated using tests that were written for Network
Security Services [NSS]. None of this would have been possible
without Franziskus Kiefer, Eric Rescorla, and Tim Taubert, all of
whom did a lot of the work in NSS.
Author's Address
Martin Thomson
Mozilla
Email: martin.thomson@gmail.com
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