Re: [TLS] Question regarding RFC 7366

2021-11-04 Thread John Mattsson
, John From: TLS on behalf of Peter Gutmann Date: Thursday, 4 November 2021 at 07:37 To: alex.sch...@gmx.de , tls@ietf.org Subject: Re: [TLS] Question regarding RFC 7366 alex.sch...@gmx.de writes: >I would really appreciate a response to get some clarification on what the >in

Re: [TLS] Question regarding RFC 7366

2021-11-03 Thread Peter Gutmann
alex.sch...@gmx.de writes: >I would really appreciate a response to get some clarification on what the >intended interpretation is, i.e., when the extension should be used. There's not really any contradiction, encrypt-then-MAC has nothing to do with AEAD which is an all-in-one mode, so it doesn

Re: [TLS] Question regarding RFC 7366

2021-11-03 Thread Viktor Dukhovni
On Tue, Nov 02, 2021 at 01:18:22PM +0100, alex.sch...@gmx.de wrote: > my question addresses the negotiation of the "encrypt_then_mac" extension > proposed in RFC 7366 and, specifically, two possible interpretations of such > negotiation when using AEAD ciphers. I think the source of the confusion

[TLS] Question regarding RFC 7366

2021-11-03 Thread alex.schlie
Dear ladies and gentlemen, my question addresses the negotiation of the "encrypt_then_mac" extension proposed in RFC 7366 and, specifically, two possible interpretations of such negotiation when using AEAD ciphers. In summary, the client and server could interpret the negotiation of the extensi