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Re: 1280-Bit RSA

daemon@ATHENA.MIT.EDU (Zooko O'Whielacronx)
Sun Jul 11 13:52:56 2010

In-Reply-To: <AANLkTilBXzndOa5TyFYTJI2jSRmsBDp7GcW3NDYUGTuq@mail.gmail.com>
Date: Sun, 11 Jul 2010 09:26:51 -0600
From: "Zooko O'Whielacronx" <zooko@zooko.com>
To: Dan Kaminsky <dan@doxpara.com>
Cc: cryptography@metzdowd.com, 
	Discussion of cryptography and related <cryptography@randombit.net>

Dan:

You didn't mention the option of switching to elliptic curves. A
256-bit elliptic curve is probably stronger than 2048-bit RSA [1]
while also being more efficient in every way except for CPU cost for
verifying signatures or encrypting [2].

I like the Brainpool curves which comes with a better demonstration
that they were generated with any possible "back door" than do the
NIST curves [3].

Regards,

Zooko

[1] http://www.keylength.com/
[2] http://bench.cr.yp.to/results-sign.html
[3] http://www.ecc-brainpool.org/download/draft-lochter-pkix-brainpool-ecc-00.txt

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