Deterministic signatures digest prefix

[Werner Koch]

On Thu, 29 May 2025 12:55, Richard Ulrich said:

> grub can verify them when the system boots. Most of the DVD ISO builds
> reproducibly. At the moment I am trying to get also those signatures
> reproducible.

DSA style signatures created using the RFC-6979 method are at their core
deterministic.  However, the question is what you want to achieve with
this:  The party who wants to create such a signature needs access to
the smartcard used to create the signature in the first place.  Even if
you don't use a smartcard (you do, right?), you would need to share the
private key - so what's the point of the signature then?


Shalom-Salam,

   Werner

-- 
The pioneers of a warless world are the youth that
refuse military service.             - A. Einstein
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