S/MIME Mail Security (smime) Concluded WG

Note: The data for concluded WGs is occasionally incorrect.

WG Name S/MIME Mail Security
Acronym smime
Area Security Area (sec)
State Concluded
Charter charter-ietf-smime-05 Approved
Personnel Chairs Paul Hoffman
Blake Ramsdell
Mailing list Addresssmime@ietf.org
To subscribesmime-request@ietf.org
Archivehttp://www.ietf.org/mail-archive/web/smime/

Charter for Working Group


The S/MIME Working Group has completed a series of Proposed Standards
that comprise the S/MIME version 3.1 specification. As part of the
specification update, a new suite of "mandatory to implement"
algorithms
was be selected. Current efforts update and build upon these base
specifications.

The Cryptographic Message Syntax (CMS) (RFC 3852) is cryptographic
algorithm independent, yet there is always more than one way to use any
algorithm. To ensure interoperability, each algorithm should have a
specification that describes its use with CMS. Specifications for the
use of additional cryptographic algorithms will be developed.

CMS, as well as S/MIME version 3 and later, permit the use of
previously
distributed symmetric key-encryption keys. Specifications for the
distribution of symmetric key-encryption keys to multiple message
recipients will be developed. Mail List Agents (MLAs) are one use of
symmetric key-encryption keys. The specification will be algorithm
independent.

To aid initial determination of recipient's cryptographic capabilities
a
specification will be developed allowing S/MIME capabilities to be
stored and asserted in X.509 certificates based on the X.509
certificate
and CRL profile developed by the PKIX Working Group.

The working group will perform necessary interoperability testing to
progress the CMS and S/MIME specifications to Draft Standard. The CMS
specification depends on the RFC 3280, which was developed by the PKIX
working group. This profile must progress to Draft Standard before CMS
and the other S/MIME specifications can progress to Draft Standard.
Assuming timely progress by the PKIX Working Group, the S/MIME
specification can start progressing to Draft Standard in 2005.

Milestones

Date Milestone
Dec 2008 Submit S/MIME Certificate Handling as Draft Standard
Dec 2008 Submit S/MIME Message Specification as Draft Standard
Dec 2008 Submit Enhanced Security Services as Draft Standard
Dec 2008 Submit necessary algorithms documents* as Draft Standard
Done Submit CMS as Draft Standard
Done Submit S/MIME Message Specification as Proposed Standard
Done Submit S/MIME Certificate Handling as Proposed Standard
Done Submit SHA-2 algorithms with CMS as Proposed Standard
Done Submit S/MIME Capabilities Certificate Extension as Informational RFC
Done Working Group Last Call for S/MIME Capabilities Certificate Extension
Done First draft of S/MIME Capabilities Certificate Extension
Done Submit RSA PSS algorithm specification as Proposed Standard
Done Last call on RSA PSS algorithm specification
Done Submit update to CERT as Proposed Standard
Done Submit update to MSG as Proposed Standard
Done First draft of RSA KEM algorithm specification
Done Last call on CMS and ESS examples document
Done Submit X.400 transport as a Proposed Standard
Done Submit X.400 CMS wrapper specification as a Proposed Standard
Done Sumbit AES algorithm specification as Proposed Standard
Done Submit HMAC key wrap description as Proposed Standard
Done Submit mail list key distribution as a Proposed Standard
Done Submit RSA OAEP algorithm specification as Proposed Standard
Done Submit domain security services as Experimental RFC.
Done Last call on domain security services document.
Done Submit CMS RecipientInfo extension to IESG for consideration as a Proposed Standard.
Done Submit IDEA algorithm specification as Informational RFC.
Done Submit security label usage specification as Informational RFC.
Done Submit CAST algorithm specification as Informational RFC.
Done Last call on mail list key distribution.
Done Last call on CMS RecipientInfo extension.
Done Last call on IDEA algorithm specification.
Done Updated draft of domain security services document.
Done Last call on security label usage specification.
Done Last call on CAST algorithm specification.
Done Submit small subgroup attack avoidance as Informational RFC
Done Submit KEA and SKIPJACK algorithm specification as Informational RFC.
Done First draft of mail list key distribution.
Done Last call on certificate distribution specification.
Done First draft of CAST algorithm specification.
Done Last call on small subgroup attack avoidance
Done Last call on KEA and SKIPJACK algorithm specification.
Done First draft of CMS RecipientInfo extension.
Done First draft of security label usage specification.