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Transport Layer Security (tls) (WG)

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Security Area Director(s):

Security Area Advisor:

Technical Advisor(s):

Meeting Slides


Request for Comments:

Charter (as of 2009-02-04)

The TLS Working Group was established in 1996 to standardize a
'transport layer' security protocol. The working group began with SSL
version 3.0. The TLS Working Group has completed a series of
specifications that describe the Transport Layer Security protocol
versions 1.0 and 1.1, extensions to the protocol, and new
ciphersuites to be used with TLS.

The primary goal of the WG is to publish a revision of TLS, version
1.2, that removes the protocol's dependency on the MD5 and SHA-1 digest
algorithms, which have been either wholly or partially compromised by
recent research. The TLS WG will also work on new authenticated
encryption modes for TLS, including modes based on counter mode
encryption (CTR) and combined encryption/authentication modes, and
may define major new cipher suites for TLS for this purpose. In the
preparation of TLS 1.2, the WG will attempt to avoid gratuitous
changes to TLS 1.1.

Goals and Milestones:

Done  Agreement on charter and issues in current draft.
Done  Final draft for Secure Transport Layer Protocol ('STLP')
Done  Working group 'Last Call'
Done  Submit to IESG for consideration as a Proposed Standard.
Done  First revised draft of TLS specification
Done  TSL 1.1 Specification
Done  First draft of TLS 1.2 specification, including CTR mode cipher suites
Done  First draft of specification for cipher suites with combined encryption/authentication modes
Dec 2006  Submit specification of TLS 1.2 specification to IESG for publication as Proposed Standard
Dec 2006  Submit specification of cipher suites with combined encryption/authentication modes to IESG for publication, with at least one of these suites to be Proposed Standard