Certificate Formats

· X.509 version 3 (1997)
· X.509 version 4 (2000)
· IETF PKIX Certificate and CRL Profile (RFC 3280, April 2002)
· IETF PKIX Qualified Certificate Profile (RFC 3039, January 2001)
· European Electronic Signature Standardisation Initiative (EESSI) Qualified Certificate Profile (TS 101 862 v.1.2.1, June 2001)
· Simple Public Key Infrastructure (SPKI) Certificate Theory (RFC 2693, September 1999)
· OpenPGP Message Format (RFC 2440, November 1998)
· Public Key Cryptography for the Financial Services Industry: Extensions to Public Key Certificates and Certificate Revocation Lists(ANSI X9.55 1997)

Certificate Management Protocols

· IETF PKIX Certificate Management Protocol (CMP) (RFC 2510, March 1999)
· IETF PKIX Certificate Management Messages over CMS (RFC 2797, April 2000)
· IETF PKIX Online Certificate Status Prococol (OCSP) ( RFC 2560, June 1999)
· Public Key Cryptography for the Financial Services Industry: Certificate Management (ANSI X9.57 1997)

Certificate-enabled applications

· IETF IP Security (IPSEC) Working Group (VPN)
· IETF SMIME Working Group (Secure Email)
· IETF TLS v1.0 Protocol, TLS Working Group, (RFC 2446, January 1999)
· Secure Sockets Layer version 3 specification (Netscape, November 1996)

 Cryptography and Public Key Data Formats

· ཉOpenPGP Message Format (RFC 2440, November 1998)
· Public Key Cryptography Standards (PKCS)
· IEEE P1363 Standards for Public Key Cryptography
· Standards for Efficient Cryptography Group (SECG, Elliptic Curves)

Policy and Accreditation Standards

· IETF PKIX Certificate Policy and Certification Practices Framework (RFC 2527, March 1999)
· Draft Public Key Assessment Guidelines (PAG) (American Bar Association)
· Public Key Infrastructure (PKI) Practices and Policy Framework (ANSI X9.79 2001)