63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
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/*
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The Keccak sponge function, designed by Guido Bertoni, Joan Daemen,
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Michaël Peeters and Gilles Van Assche. For more information, feedback or
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questions, please refer to our website: http://keccak.noekeon.org/
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Implementation by Ronny Van Keer,
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hereby denoted as "the implementer".
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To the extent possible under law, the implementer has waived all copyright
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and related or neighboring rights to the source code in this file.
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http://creativecommons.org/publicdomain/zero/1.0/
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*/
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#include <string.h>
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#include "KeccakF-1600-interface.h"
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#define UseBebigokimisa
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typedef unsigned char UINT8;
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typedef unsigned long long int UINT64;
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void KeccakInitialize()
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{
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}
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void KeccakExtract(const unsigned char *state, unsigned char *data, unsigned int laneCount)
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{
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memcpy(data, state, laneCount*8);
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#ifdef UseBebigokimisa
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if (laneCount > 8)
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{
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((UINT64*)data)[ 1] = ~((UINT64*)data)[ 1];
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((UINT64*)data)[ 2] = ~((UINT64*)data)[ 2];
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((UINT64*)data)[ 8] = ~((UINT64*)data)[ 8];
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if (laneCount > 12)
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{
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((UINT64*)data)[12] = ~((UINT64*)data)[12];
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if (laneCount > 17)
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{
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((UINT64*)data)[17] = ~((UINT64*)data)[17];
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if (laneCount > 20)
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{
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((UINT64*)data)[20] = ~((UINT64*)data)[20];
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}
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}
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}
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}
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else
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{
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if (laneCount > 1)
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{
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((UINT64*)data)[ 1] = ~((UINT64*)data)[ 1];
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if (laneCount > 2)
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{
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((UINT64*)data)[ 2] = ~((UINT64*)data)[ 2];
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}
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}
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}
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#endif
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}
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