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Re: [Cfrg] Summary

Christoph Anton Mitterer <calestyo@scientia.net> Thu, 01 January 2015 17:26 UTC

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From: Christoph Anton Mitterer <calestyo@scientia.net>
To: cfrg@irtf.org
Date: Thu, 01 Jan 2015 18:25:58 +0100
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Subject: Re: [Cfrg] Summary
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On Thu, 2015-01-01 at 10:50 -0500, Watson Ladd wrote: 
> Above 255 bits, life gets more interesting. Assuming we want to use
> X-coordinate Montgomery (sorry Mike) for ECDH and compressed Edwards
> for sigs, we've got 3 or 4 different proposals for around 380, and 1
> for 521.
> 
> -For 521 it's E521 as described on safecurves.cr.yp.to, the prime being 2^521-1
Is this going to be followed up?
I'd really love so see a trustworthy curve that has an extremely high
security margin... something like "as long as there are no quantum
computers and no other break through against the base paradigms is found
- no collected computing power will 'ever' be able to break this"...
that could be used in fields like OpenPGP... for long-term key signing,
where performance doesn't matter that much.

Cheers,
Chris.

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