Re: [Cfrg] Dual_EC_DRBG ... [was RE: Requesting removal of CFRG co-chair]

Adam Back <adam@cypherspace.org> Fri, 27 December 2013 19:09 UTC

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Date: Fri, 27 Dec 2013 20:09:07 +0100
From: Adam Back <adam@cypherspace.org>
To: Dan Brown <dbrown@certicom.com>
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Cc: Adam Back <adam@cypherspace.org>, "'cfrg@irtf.org'" <cfrg@irtf.org>
Subject: Re: [Cfrg] Dual_EC_DRBG ... [was RE: Requesting removal of CFRG co-chair]
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Dan Brown wrote:
> [...]
> 8. All considered, I don't see how the ANSI and NIST standards for
> Dual_EC_DRBG can be viewed as a subverted standard, per se.

Of course they're subverted.  We have Ferguson et al show how they could be
backdoored.  We have internal NSA documents reported as talking about the
subversion.  We have confirmation of RSA (inadvertently or not) accepting
money to put a EC_DRBG as a default.  You yourself just said the validation
labs are demanding the backdoored P & Q be used (and rejecting the provably
uncooked implemented chosen parameters presumably).  NIST put the standard
forward (inadvertently or not) from NSA input.

I am non-plussed at what you could be trying to say with the above
statement.

Adam