Documents by C. Kaufman
1993, RFC1507: DASS - Distributed Authentication Security Service
1997, RFC2065: Domain Name System Security Extensions
2003, RFC3631: Security Mechanisms for the Internet
2005, RFC4306: Internet Key Exchange (IKEv2) Protocol
2010, RFC5996: Internet Key Exchange Protocol Version 2 (IKEv2)
2014, RFC7296: Internet Key Exchange Protocol Version 2 (IKEv2)