Add SHA-3 (Keccak) support to pgcrypto

From: Philip Taylor <philiptaylor51(at)yahoo(dot)com>
To: "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Add SHA-3 (Keccak) support to pgcrypto
Date: 2012-10-19 14:29:19
Message-ID: 1350656959.68342.YahooMailNeo@web160101.mail.bf1.yahoo.com
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On Oct 2 the latest crypto hash function was announced by NIST [1]. I suggest that we include the new hash algorithm in pgcrypto for 9.3.
The Keccak site also has a reference implementation in C and Assembler [2]. It may take some effort to integrate the reference implementation as it contains several optimized backends for X86, X86_64, SIMD and various ARM platforms.

[1] http://www.nist.gov/itl/csd/sha-100212.cfm
[2] http://keccak.noekeon.org/

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