On Thu, Aug 13, 2015 at 8:41 AM, Simon Josefsson <[email protected]>
wrote:

> This is not a good discriminator of the CFRG options -- this problem is
> a weakness in this protocol, and should be addressed here.


I'd agree, this is a conceptual misuse of digital signatures. While
creating a signature algorithm resistant to this is a "neat trick" much
like nonce reuse resistant AEAD schemes, you shouldn't design protocols
that rely on that resistance in either case.

-- 
Tony Arcieri
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