Public-Key Infrastructure (X.509) (pkix) ---------------------------------------- Charter Last Modified: 2008-08-21 Current Status: Active Working Group Chair(s): Stephen Kent Stefan Santesson Security Area Director(s): Tim Polk Pasi Eronen Security Area Advisor: Tim Polk Mailing Lists: General Discussion:ietf-pkix@imc.org To Subscribe: ietf-pkix-request@imc.org In Body: subscribe (In Body) Archive: http://www.imc.org/ietf-pkix Description of Working Group: The PKIX Working Group was established in the fall of 1995 with the goal of developing Internet standards to support X.509-based Public Key Infrastructures (PKIs). Initially PKIX pursued this goal by profiling X.509 standards developed by the CCITT (later the ITU-T). Later, PKIX initiated the development of standards that are not profiles of ITU-T work, but rather are independent initiatives designed to address X.509-based PKI needs in the Internet. Over time this latter category of work has become the major focus of PKIX work, i.e., most PKIX-generated RFCs are no longer profiles of ITU-T X.509 documents. PKIX has produced a number of standards track and informational RFCs. RFC 3280 (Certificate and CRL Profile), and RCF 3281 (Attribute Certificate Profile) are recent examples of standards track RFCs that profile ITU-T documents. RFC 2560 (Online Certificate Status Profile), RFC 3779 (IP Address and AS Number Extensions), and RFC 3161 (Time Stamp Authority) are examples of standards track RFCs that are IETF-initiated. RFC 4055 (RSA) and RFC 3874 (SHA2) are examples of informational RFCs that describe how to use public key and hash algorithms in PKIs. PKIX Work Plan PKIX will continue to track the evolution of ITU-T X.509 documents, and will maintain compatibility between these documents and IETF PKI standards, since the profiling of X.509 standards for use in the Internet remains an important topic for the working group. PKIX does not endorse the use of specific cryptographic algorithms with its protocols. However, PKIX does publish standards track RFCs that describe how to identify algorithms and represent associated parameters in these protocols, and how to use these algorithms with these protocols. We anticipate efforts in this arena will continue to be required over time. PKIX will pursue new work items in the PKI arena if working group members express sufficient interest, and if approved by the cognizant Security Area director. For example, certificate validation under X. 509 and PKIX standards calls for a relying party to use a trust anchor as the start of a certificate path. Neither X.509 nor extant PKIX standards define protocols for the management of trust anchors. Existing mechanisms for managing trust anchors, e.g., in browsers, are limited in functionality and non-standard. There is considerable interest in the PKI community to define a standard model for trust anchor management, and standard protocols to allow remote management. Thus a future work item for PKIX is the definition of such protocols and associated data models. Goals and Milestones: Done Complete approval of CMC, and qualified certificates documents Done Complete time stamping document Done Continue attribute certificate profile work Done Complete data certification document Done Complete work on attribute certificate profile Done Standard RFCs for public key and attribute certificate profiles, CMP, OCSP, CMC, CRMF, TSP, Qualified Certificates, LDAP v2 schema, use of FTP/HTTP, Diffie-Hellman POP Done INFORMATIONAL RFCs for X.509 PKI policies and practices, use of KEA Done Experimental RFC for Data Validation and Certification Server Protocols Done Production of revised certificate and CRL syntax and processing RFC (son-of-2459) Done DPD/DVP Requirements RFC Done Certificate Policy & CPS Informational RFC (revision) Done Logotype Extension RFC Done Proxy Certificate RFC Done Cert Path Building approved as Informational RFC Done CRMFbis approved as PROPOSED Standard RFC Done CMPbis approved as PROPOSED Standard RFC Done Principal Identifier approved as PROPOSED Standard RFC Done Warranty Extensions approved as Informational RFC Done Certificate Store approved as Informational RFC Done PKIX Repository approved as Informational RFC Done Subject Identification Method as Informational RFC Done GOST Cryptographic Algorithms (RFC 4491) Done Update to DirectoryString Processing for RFC 3280 Done Attribute Certificate Policies approved as PROPOSED Standard (RFC 4476) Sep 2007 Progression of CRMF, CMP, and CMP Transport to DRAFT Standard Sep 2007 Progression of Qualified Certificates Profile RFC to DRAFT Standard Sep 2007 Progression of Certificate & CRL Profile RFC to DRAFT Standard Sep 2007 Progression of Time Stamp Protocols RFC to DRAFT Standard Sep 2007 Progression of Logotype RFC to DRAFT Standard Nov 2007 Progression of Proxy Certificate RFC to DRAFT Standard Nov 2007 Progression of Attribute Certificate Profile RFC to DRAFT standard Feb 2008 Update to CMC approved as PROPOSED Standard Mar 2008 ECC Algorithms approved as PROPOSED Standard RFC Mar 2008 Progression of CMC RFCs to DRAFT Standard Mar 2008 SCVP approved as PROPOSED Standard RFC Internet-Drafts: Posted Revised I-D Title ------ ------- -------------------------------------------- Apr 2002 Feb 2009 Internet X.509 Public Key Infrastructure Time-Stamp Protocol (TSP) Jun 2006 Mar 2009 Internet X.509 Public Key Infrastructure: Additional Algorithms and Identifiers for DSA and ECDSA Dec 2007 Apr 2009 New ASN.1 Modules for PKIX Jan 2008 Mar 2009 Update for RSAES-OAEP Algorithm Parameters Jun 2008 May 2009 Traceable Anonymous Certificate Jun 2008 Mar 2009 Trust Anchor Management Requirements Jul 2008 May 2009 PKI Resource Query Protocol (PRQP) Aug 2008 Apr 2009 Other Certificates Extension Oct 2008 May 2009 Trust Anchor Format Oct 2008 Apr 2009 Trust Anchor Management Protocol (TAMP) Oct 2008 Apr 2009 An Internet Attribute Certificate Profile for Authorization Oct 2008 Mar 2009 Clearance Attribute and Authority Clearance Constraints Certificate Extension Mar 2009 Mar 2009 OCSP Algorithm Agility May 2009 May 2009 Internet X.509 Public Key Infrastructure: Certificate Image May 2009 May 2009 ASN.1 Translation Request For Comments: RFC Stat Published Title ------- -- ----------- ------------------------------------ RFC2459 PS Jan 1999 Internet X.509 Public Key Infrastructure Certificate and CRL Profile RFC2510 PS Mar 1999 Internet X.509 Public Key Infrastructure Certificate Management Protocols RFC2511 PS Mar 1999 Internet X.509 Certificate Request Message Format RFC2527 I Mar 1999 Internet X.509 Public Key Infrastructure Certificate Policy and Certification Practices Framework RFC2528 I Mar 1999 Internet X.509 Public Key Infrastructure Representation of Key Exchange Algorithm (KEA) Keys in Internet X.509 Public Key Infrastructure Certificates RFC2559 PS Apr 1999 Internet X.509 Public Key Infrastructure Operational Protocols - LDAPv2 RFC2585 PS May 1999 Internet X.509 Public Key Infrastructure Operational Protocols: FTP and HTTP RFC2587 PS Jun 1999 Internet X.509 Public Key Infrastructure LDAPv2 Schema RFC2560 PS Jun 1999 X.509 Internet Public Key Infrastructure Online Certificate Status Protocol - OCSP RFC2797 PS May 2000 Certificate Management Messages over CMS RFC2875 PS Jul 2000 Diffie-Hellman Proof-of-Possession Algorithms RFC3039 PS Jan 2001 Internet X.509 Public Key Infrastructure Qualified Certificates Profile RFC3029 E Feb 2001 Internet X.509 Public Key Infrastructure Data Validation and Certification Server Protocols RFC3161 PS Aug 2001 Internet X.509 Public Key Infrastructure Time Stamp Protocols (TSP) RFC3279 PS May 2002 Algorithms and Identifiers for the Internet X.509 Public Key Infrastructure Certificate and CRI Profile RFC3280 PS May 2002 Internet X.509 Public Key Infrastructure Certificate and CRL Profile RFC3281 PS May 2002 An Internet Attribute Certificate Profile for Authorization RFC3379 I Sep 2002 Delegated Path Validation and Delegated Path Discovery Protocol Requirements RFC3647 I Nov 2003 Internet X.509 Public Key Infrastructure Certificate Policy and Certification Practices Framework RFC3628 I Nov 2003 Policy Requirements for Time-Stamping Authorities RFC3709Standard Feb 2004 Internet X.509 Public Key Infrastructure: Logotypes in X.509 certificates RFC3739Standard Mar 2004 Internet X.509 Public Key Infrastructure: Qualified Certificates Profile RFC3770Standard May 2004 Certificate Extensions and Attributes Supporting Authentication in PPP and Wireless LAN RFC3779Standard Jun 2004 X.509 Extensions for IP Addresses and AS Identifiers RFC3820Standard Jul 2004 Internet X.509 Public Key Infrastructure Proxy Certificate Profile RFC3874 I Sep 2004 A 224-bit One-way Hash Function: SHA-224 RFC4059 I May 2005 Internet X.509 Public Key Infrastructure Warranty Certificate Extension RFC4043Standard May 2005 Internet X.509 Public Key Infrastructure Permanent Identifier RFC4055Standard Jun 2005 Additional Algorithms and Identifiers for RSA Cryptography for use in the Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile RFC4158 I Sep 2005 Internet X.509 Public Key Infrastructure: Certification Path Building RFC4210Standard Oct 2005 Internet X.509 Public Key Infrastructure Certificate Management Protocols RFC4211Standard Oct 2005 Internet X.509 Public Key Infrastructure Certificate Request Message Format (CRMF) RFC4325Standard Dec 2005 Internet X.509 Public Key Infrastructure Authority Information Access Certificate Revocation List (CRL) Extension RFC4334Standard Feb 2006 Certificate Extensions and Attributes Supporting Authentication in Point-to-Point Protocol (PPP) and Wireless Local Area Networks (WLAN) RFC4386 E Feb 2006 Internet X.509 Public Key Infrastructure Repository Locator Service RFC4387Standard Feb 2006 Internet X.509 Public Key Infrastructure Operational Protocols: Certificate Store Access via HTTP RFC4476 PS May 2006 Attribute Certificate (AC) Policies Extension RFC4491 PS May 2006 Using the GOST R 34.10-94, GOST R 34.10-2001 and GOST R 34.11-94 algorithms with the Internet X.509 Public Key Infrastructure Certificate and CRL Profile. RFC4630 PS Aug 2006 Update to DirectoryString Processing in the Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile RFC4683 PS Oct 2006 Internet X.509 Public Key Infrastructure Subject Identification Method (SIM) RFC4985 PS Aug 2007 Internet X.509 Public Key Infrastructure Subject Alternative Name for expression of service name RFC5019 PS Sep 2007 The Lightweight Online Certificate Status Protocol (OCSP) Profile for High-Volume Environments RFC5055 PS Dec 2007 Server-based Certificate Validation Protocol (SCVP) RFC5280Standard May 2008 Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile RFC5274 PS Jun 2008 Certificate Management Messages over CMS (CMC): Compliance Requirements RFC5273 PS Jun 2008 Certificate Management over CMS (CMC): Transport Protocols RFC5272 PS Jun 2008 Certificate Management Messages over CMS RFC5480 PS Mar 2009 Elliptic Curve Cryptography Subject Public Key Information