[18677] in cryptography@c2.net mail archive
Re: NSA Suite B Cryptography
daemon@ATHENA.MIT.EDU (Alexander Klimov)
Mon Oct 17 13:21:47 2005
X-Original-To: cryptography@metzdowd.com
X-Original-To: cryptography@metzdowd.com
Date: Mon, 17 Oct 2005 15:59:51 +0200 (IST)
From: Alexander Klimov <alserkli@inbox.ru>
To: Sidney Markowitz <sidney@sidney.com>
Cc: cryptography@metzdowd.com
In-Reply-To: <434F27E7.6080408@sidney.com>
On Fri, 14 Oct 2005, Sidney Markowitz wrote:
> Does this prevent free software interoperability with Suite B standards?
> It potentially could be used to block non-US vendors, certainly anyone
> who is in the US Government's disfavor, but it seems to me that even
> with no further intentional action by the NSA it would preclude software
> under the GPL and maybe FOSS in general in countries in which the
> patents are valid.
Since it turns out that ECDH and ECDSA with EC(GF_p) (even with point
compression) are not patented the following can be considered as
pro-FOSS:
All implementations of Suite B must, at a minimum, include AES with
128-bit keys, the 256-bit prime modulus elliptic curve and SHA-256
as a common mode for widespread interoperability. [...] ECDH is
appropriate for incorporation of Suite B into many existing Internet
protocols such as the Internet Key Exchange (IKE), Transport Layer
Security (TLS), and Secure MIME (S/MIME).
--
Regards,
ASK
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