[146738] in cryptography@c2.net mail archive
Re: [Cryptography] Why prefer symmetric crypto over public key
daemon@ATHENA.MIT.EDU (Jeffrey I. Schiller)
Sat Sep 7 14:50:05 2013
X-Original-To: cryptography@metzdowd.com
Date: Sat, 7 Sep 2013 10:05:22 -0400
From: "Jeffrey I. Schiller" <jis@mit.edu>
To: ianG <iang@iang.org>
In-Reply-To: <522ADC53.8020802@iang.org>
Cc: cryptography@metzdowd.com
Errors-To: cryptography-bounces+crypto.discuss=bloom-picayune.mit.edu@metzdowd.com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