Re: [TLS] Salsa20 and Poly1305 in TLS

Geoffrey Keating <geoffk@geoffk.org> Tue, 30 July 2013 18:26 UTC

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To: Ben Laurie <benl@google.com>
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From: Geoffrey Keating <geoffk@geoffk.org>
Date: 30 Jul 2013 11:26:16 -0700
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Subject: Re: [TLS] Salsa20 and Poly1305 in TLS
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Ben Laurie <benl@google.com> writes:

> Also, defining ciphersuites for SSL 3, TLS 1.0/1.1 would be good, so we can
> use them despite downgrade attacks.

Surely if you discover that the remote end appears to support only SSL
3 but yet somehow supports Salsa, you should stop trying to
communicate because you're under a downgrade attack?