2.7.11 Public-Key Infrastructure (X.509) (pkix)

NOTE: This charter is a snapshot of the 68th IETF Meeting in Prague, Czech Republic. It may now be out-of-date.

Last Modified: 2006-12-27

Chair(s):

Stephen Kent <kent@bbn.com>
Stefan Santesson <stefans@microsoft.com>

Security Area Director(s):

Russ Housley <housley@vigilsec.com>
Sam Hartman <hartmans-ietf@mit.edu>

Security Area Advisor:

Russ Housley <housley@vigilsec.com>

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
intent of developing Internet standards needed to support an
X.509-based PKI. The scope of PKIX work has expanded beyond this
initial goal. PKIX not only profiles ITU PKI standards, but also
develops new standards apropos to the use of X.509-based PKIs in the
Internet.

PKIX has produced several informational and standards track documents
in support of the original and revised scope of the WG. The first of
these standards, RFC 2459, profiled X.509 version 3 certificates and
version 2 CRLs for use in the Internet. Profiles for the use of
Attribute Certificates (RFC XXXX [pending]), LDAP v2 for certificate
and CRL storage (RFC 2587), the Internet X.509 Public Key
Infrastructure Qualified Certificates Profile (RFC 3039), and the
Internet X.509 Public Key Infrastructure Certificate Policy and
certification Practices Framework (RFC 2527 - Informational) are in
line with the initial scope.

The Certificate Management Protocol (CMP) (RFC 2510), the Online
Certificate Status Protocol (OCSP) (RFC 2560), Certificate Management
Request Format (CRMF) (RFC 2511), Time-Stamp Protocol (RFC 3161),
Certificate Management Messages over CMS (RFC 2797), Internet X.509
Public Key Infrastructure Time Stamp Protocols (RFC 3161), and the use
of FTP and HTTP for transport of PKI operations (RFC 2585) are
representative of the expanded scope of PKIX, as these are new
protocols developed in the working group, not profiles of ITU PKI
standards.

A roadmap, providing a guide to the growing set of PKIX document, also
has been developed as an informational RFC.

Ongoing PKIX Work items

An ongoing PKIX task is the progression of existing, standards track
RFCs from PROPOSED to DRAFT. Also, to the extent that PKIX work
relates to protocols from other areas, e.g., LDAP, it is necessary to
track the evolution of the other protocols and produce updated
RFCs. For example, the LDAP v2 documents from PKIX are evolving to
address LDAP v3. Finally, since the profiling of X.509 standards for
use in the Internet remains a major focus, the WG will continue to
track the evolution of these standards and incorporate changes and
additions as appropriate.

New Work items for PKIX

- production of a requirements RFC for delegated path discovery and
  path validation protocols (DPD/DPV) and subsequent production of
  RFCs for protocols that satisfy the requirements

- development of a logotype extension for certificates

- development of a proxy certificate extension and associated
  processing rules

- development of an informational document on PKI disaster recovery

These work items may become standards track, INFORMATIONAL or
EXPERIMENTAL RFCs, or may not even be published as RFCs.

Other deliverables may be agreed upon as extensions are proposed.
New deliverables must be approved by the Security Area Directors
before inclusion on the charter or IETF meeting agendas.

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)
Oct 2006  Update to CMC approved as PROPOSED Standard
Mar 2007  Progression of CMC RFCs to DRAFT Standard
Mar 2007  Progression of Time Stamp Protocols RFC to DRAFT Standard
Apr 2007  Progression of CRMF, CMP, and CMP Transport to DRAFT Standard
Apr 2007  Progression of Qualified Certificates Profile RFC to DRAFT Standard
Apr 2007  Progression of Certificate & CRL Profile RFC to DRAFT Standard
Apr 2007  Progression of Logotype RFC to DRAFT Standard
Apr 2007  SCVP approved as PROPOSED Standard RFC
Apr 2007  ECC Algorithms approved as PROPOSED Standard RFC
May 2007  Progression of Proxy Certificate RFC to DRAFT Standard
May 2007  Progression of Attribute Certificate Profile RFC to DRAFT standard

Internet-Drafts:

  • draft-ietf-pkix-scvp-31.txt
  • draft-ietf-pkix-2797-bis-04.txt
  • draft-ietf-pkix-cmc-trans-05.txt
  • draft-ietf-pkix-cmc-compl-03.txt
  • draft-ietf-pkix-ecc-pkalgs-03.txt
  • draft-ietf-pkix-lightweight-ocsp-profile-08.txt
  • draft-ietf-pkix-rfc3280bis-08.txt
  • draft-ietf-pkix-srvsan-04.txt

    Request For Comments:

    RFCStatusTitle
    RFC2459 PS Internet X.509 Public Key Infrastructure Certificate and CRL Profile
    RFC2510 PS Internet X.509 Public Key Infrastructure Certificate Management Protocols
    RFC2511 PS Internet X.509 Certificate Request Message Format
    RFC2527 I Internet X.509 Public Key Infrastructure Certificate Policy and Certification Practices Framework
    RFC2528 I Internet X.509 Public Key Infrastructure Representation of Key Exchange Algorithm (KEA) Keys in Internet X.509 Public Key Infrastructure Certificates
    RFC2559 PS Internet X.509 Public Key Infrastructure Operational Protocols - LDAPv2
    RFC2560 PS X.509 Internet Public Key Infrastructure Online Certificate Status Protocol - OCSP
    RFC2585 PS Internet X.509 Public Key Infrastructure Operational Protocols: FTP and HTTP
    RFC2587 PS Internet X.509 Public Key Infrastructure LDAPv2 Schema
    RFC2797 PS Certificate Management Messages over CMS
    RFC2875 PS Diffie-Hellman Proof-of-Possession Algorithms
    RFC3029 E Internet X.509 Public Key Infrastructure Data Validation and Certification Server Protocols
    RFC3039 PS Internet X.509 Public Key Infrastructure Qualified Certificates Profile
    RFC3161 PS Internet X.509 Public Key Infrastructure Time Stamp Protocols (TSP)
    RFC3279 PS Algorithms and Identifiers for the Internet X.509 Public Key Infrastructure Certificate and CRI Profile
    RFC3280 PS Internet X.509 Public Key Infrastructure Certificate and CRL Profile
    RFC3281 PS An Internet Attribute Certificate Profile for Authorization
    RFC3379 I Delegated Path Validation and Delegated Path Discovery Protocol Requirements
    RFC3628 I Policy Requirements for Time-Stamping Authorities
    RFC3647 I Internet X.509 Public Key Infrastructure Certificate Policy and Certification Practices Framework
    RFC3709 Standard Internet X.509 Public Key Infrastructure: Logotypes in X.509 certificates
    RFC3739 Standard Internet X.509 Public Key Infrastructure: Qualified Certificates Profile
    RFC3770 Standard Certificate Extensions and Attributes Supporting Authentication in PPP and Wireless LAN
    RFC3779 Standard X.509 Extensions for IP Addresses and AS Identifiers
    RFC3820 Standard Internet X.509 Public Key Infrastructure Proxy Certificate Profile
    RFC3874 I A 224-bit One-way Hash Function: SHA-224
    RFC4043 Standard Internet X.509 Public Key Infrastructure Permanent Identifier
    RFC4055 Standard Additional Algorithms and Identifiers for RSA Cryptography for use in the Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile
    RFC4059 I Internet X.509 Public Key Infrastructure Warranty Certificate Extension
    RFC4158 I Internet X.509 Public Key Infrastructure: Certification Path Building
    RFC4210 Standard Internet X.509 Public Key Infrastructure Certificate Management Protocols
    RFC4211 Standard Internet X.509 Public Key Infrastructure Certificate Request Message Format (CRMF)
    RFC4325 Standard Internet X.509 Public Key Infrastructure Authority Information Access Certificate Revocation List (CRL) Extension
    RFC4334 Standard Certificate Extensions and Attributes Supporting Authentication in Point-to-Point Protocol (PPP) and Wireless Local Area Networks (WLAN)
    RFC4386 E Internet X.509 Public Key Infrastructure Repository Locator Service
    RFC4387 Standard Internet X.509 Public Key Infrastructure Operational Protocols: Certificate Store Access via HTTP
    RFC4476 PS Attribute Certificate (AC) Policies Extension
    RFC4491 PS 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 Update to DirectoryString Processing in the Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile
    RFC4683 PS Internet X.509 Public Key Infrastructure Subject Identification Method (SIM)

    Meeting Minutes


    Slides

    PKIX Overview
    Key Compromise - Loss and Rollover
    PKIX domain certs
    Subject Alt Name for Service names
    Internationalized e-mail
    CMC