The IESG has received a request from the Transport Layer Security WG (tls) to consider the following document: - 'Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for TLS' <draft-ietf-tls-negotiated-ff-dhe-08.txt> as Proposed Standard 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 2015-04-17. 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 Traditional finite-field-based Diffie-Hellman (DH) key exchange during the TLS handshake suffers from a number of security, interoperability, and efficiency shortcomings. These shortcomings arise from lack of clarity about which DH group parameters TLS servers should offer and clients should accept. This document offers a solution to these shortcomings for compatible peers by using a section of the TLS "EC Named Curve Registry" to establish common finite-field DH parameters with known structure and a mechanism for peers to negotiate support for these groups. The file can be obtained via http://datatracker.ietf.org/doc/draft-ietf-tls-negotiated-ff-dhe/ IESG discussion can be tracked via http://datatracker.ietf.org/doc/draft-ietf-tls-negotiated-ff-dhe/ballot/ No IPR declarations have been submitted directly on this I-D.
