The IESG has received a request from an individual submitter to consider the following document: - 'Diffie-Hellman Proof-of-Possession Algorithms' <draft-schaad-pkix-rfc2875-bis-07.txt> as Proposed Standard This Last Call is the second IETF Last Call for this document. No technical issues were raised during the first Last Call. However, the Last Call failed to highlight three normative references to informational RFCs: RFCs 2104, RFC 2986, and RFC 6234. RFCs 2104 and 2986 already appear in the downref registry located at: http://trac.tools.ietf.org/group/iesg/trac/wiki/DownrefRegistry but RFC 6234 does not. This abbreviated Last Call is focused solely on whether the downref to RFC 6234 is appropriate in the context of draft-schaad-pkix-rfc2875. Note that RFC 6234 is also called out in a downref in another IETF Last Call ending on the same date. The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2013-03-19. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract This document describes two methods for producing an integrity check value from a Diffie-Hellman key pair and one method for producing an integrity check value from an Elliptic Curve key pair. This behavior is needed for such operations as creating the signature of a PKCS #10 certification request. These algorithms are designed to provide a proof-of-possession of the private key and not to be a general purpose signing algorithm. This document obsoletes RFC 2875. The file can be obtained via http://datatracker.ietf.org/doc/draft-schaad-pkix-rfc2875-bis/ IESG discussion can be tracked via http://datatracker.ietf.org/doc/draft-schaad-pkix-rfc2875-bis/ballot/ No IPR declarations have been submitted directly on this I-D.