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Re: [GNUnet-developers] ECDSA vs. EDDSA

From: Jeff Burdges
Subject: Re: [GNUnet-developers] ECDSA vs. EDDSA
Date: Fri, 08 Jan 2016 09:45:56 -0800

On Fri, 2016-01-08 at 18:40 +0100, Sree Harsha Totakura wrote:

> While I understand that ECDHE is needed for EC encryption, I can't
> quite
> fathom why we use both ECDSA and EDDSA in GNUnet, for they seem to be
> addressing the signatures with the notable difference between them
> being
> radomized vs. deterministic signatures respectively.
> Are there any other reasons behind using both of them?

I'd imagine Christian may give a better or more specific answer, but..

It's much harder to screw up using EdDSA signatures, so the code that
uses them is more robust and requires less careful review.

Afaik ECDSA is only used in GNS to accommodate GNS's specific key
blinding approach. 


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