The IESG has approved the Internet-Draft 'Use of the CAST-128 Encryption Algorithm in CMS' <draft-ietf-smime-cast-128-02.txt> as a Proposed Standard. This document is the product of the S/MIME Mail Security Working Group. The IESG contact persons are Jeffrey Schiller and Marcus Leech. Technical Summary This protocol specifies the mechanisms and OIDs necessary to use the CAST-128 [RFC2144] encryption algorithm with the S/MIME Cryptographic Message Syntax [RFC2630]. This cipher supports a variable length key (40 - 128 bits) and is available worldwide without royalties. It is considered by the cryptographic community as a valid and reasonable cipher. Working Group Summary There was WG consensus on promotion to Proposed Standard. Protocol Quality The protocol has been independently reviewed for the IESG by both Marcus Leech and Jeff Schiller.
