[Cryptech Tech] Incremental digest outputs

Joachim Strömbergson joachim at secworks.se
Sun Nov 16 16:03:02 UTC 2014


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Rob Austein wrote:
> Something I intended to mention while I was doing the prototype HAL 
> for the digest cores: unless I'm missing something, our digest cores
>  don't support incremental digest results.

You are missing something. ;-)

The cores supports (or at least should) support incremental digests. You
can read the digest registers between every block in a multiblock
message and get the digest for all blocks up to the latest block.

This is what I use in the TRNG to generate seeds.

- -- 
Med vänlig hälsning, Yours

Joachim Strömbergson - Alltid i harmonisk svängning.
========================================================================
 Joachim Strömbergson          Secworks AB          joachim at secworks.se
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