Re: [TLS] ECHO padding review and some open issues
Rob Sayre <sayrer@gmail.com> Fri, 24 April 2020 18:32 UTC
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From: Rob Sayre <sayrer@gmail.com>
Date: Fri, 24 Apr 2020 11:31:47 -0700
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To: Christopher Wood <caw@heapingbits.net>
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Subject: Re: [TLS] ECHO padding review and some open issues
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On Thu, Apr 23, 2020 at 4:31 PM Christopher Wood <caw@heapingbits.net> wrote: > > Is this PR ready to go? If not, why not? What would you change, and why? > (Concrete suggestions are highly encouraged!) Note also that this is > currently only a recommended padding algorithm. Implementations are > therefore free to do what they wish. Is this acceptable? Do we need to be > more prescriptive? Food for thought! > It took me a while to notice that many of the padding debates aren't so important if ECHO allows arbitrary structs/extensions in the encrypted ClientHello. The recommendation is fine as a minimum, as long as servers are tolerant of unknown extensions in the ciphertext. thanks, Rob
- [TLS] ECHO padding review and some open issues Christopher Wood
- Re: [TLS] ECHO padding review and some open issues Stephen Farrell
- Re: [TLS] ECHO padding review and some open issues Stephen Farrell
- Re: [TLS] ECHO padding review and some open issues Rob Sayre