I have reviewed this document as part of the security directorate's ongoing effort to review all IETF documents being processed by the IESG. These comments were written primarily for the benefit of the security area directors. Document editors and WG chairs should treat these comments just like any other last call comments. Abstract: This document presents the necessary information to use the Camellia symmetric block cipher in the OpenPGP protocol. Camellia is described in RFC3713, OpenPGP in RFC4880. Pretty much all this document does is allocate the algorithm identifiers required to use Camellia in OpenPGP. It also calls out potential interoperability issues related to choosing a symmetric cipher for use in an OpenPGP message, and has a reasonable security considerations section suggesting steps to be taken when choosing an encryption algorithm. I see no problems with this document. -- Jeff