Re: [TLS] Pull Request: Removing the AEAD explicit IV

Adam Langley <agl@imperialviolet.org> Sat, 21 March 2015 19:20 UTC

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From: Adam Langley <agl@imperialviolet.org>
To: Eric Rescorla <ekr@rtfm.com>
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Subject: Re: [TLS] Pull Request: Removing the AEAD explicit IV
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On Sat, Mar 21, 2015 at 11:58 AM, Eric Rescorla <ekr@rtfm.com>; wrote:
> Adam, Brian, what would you think of XOR rather than addition?
>
> E.g., generate a per-connection value V and then do:
>
> Nonce = Seq XOR V?

It's invertable so can't break uniqueness. So that would be ok too. Is
V a 12-byte (or whatever) value and thus fixes the upper 4 (or
whatever) bytes of the nonce?


Cheers

AGL