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S/MIME Mail Security (smime)
(concluded WG)

Note: The data for concluded WGs is occasionally incorrect.
Group
Name: S/MIME Mail Security
Acronym:smime
Area:Security Area (sec)
State: Concluded
Charter: charter-ietf-smime-05 (Approved)
Personnel
Chairs: Paul Hoffman <paul.hoffman@vpnc.org>
Blake Ramsdell <blaker@gmail.com>
Area Director: ?
Mailing List
Address:smime@ietf.org
To Subscribe:smime-request@ietf.org
Archive:http://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

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