[Cryptech Tech] SHA-512

[Joachim Strömbergson]

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Aloha!

I've now got a SHA-512 core that simulates ok and builds in Quartus. The
core is almost exactly 2x as big in terms of logic as well as in terms
of numbers of registers compared to the SHA-256 core.

The new core supports the FIPS 180-4 variants SHA-512/224, SHA-512/256
SHA-512/384. And for course SHA-512 itself. The core should provide 60%
better performance compared to SHA-256 due to the bigger block size but
more rounds. With the 50 MHz clock on the C5G board we should be able to
do 600+ Mbps hashing. Not to shabby.

With this core we should now have all hash functions that we need for
the first use cases as well as an internal building block for TRNG.

I will do some cleanup and check into the repo later this week. I will
also update coretest_hashes to include sha512 into the same subsystem.

Next up is completion of the AES core and then RSA.

- -- 
Med vänlig hälsning, Yours

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