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Re: [TLS] A flags extension

Yoav Nir <ynir.ietf@gmail.com> Tue, 26 March 2019 09:11 UTC

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From: Yoav Nir <ynir.ietf@gmail.com>
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Date: Tue, 26 Mar 2019 10:11:32 +0100
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To: Martin Thomson <mt@lowentropy.net>
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Subject: Re: [TLS] A flags extension
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> On 26 Mar 2019, at 9:06, Martin Thomson <mt@lowentropy.net> wrote:
> 
> This needs more space for each flag.  8 bits is a pretty small space.  If you are concerned with the size of the result, we have some variable-length integer encodings you could try.

Ah, the beautiful variable length encodings.  Like:

 - 0x00 - 0xBF - for standards-action allocations
 - 0xC0,0x00 - 0xEF,0xFF - for non-standards track
- 0xF0,0x00 - 0xFF,0xFF - for private use among consenting parties.

Are we really worried that we’re going to have more than 255 optional features for TLS?

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