sha3: code shrink
function old new delta KeccakF 1053 1078 +25 KeccakF_RoundConstants 192 48 -144 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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@ -933,32 +933,40 @@ enum {
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cKeccakNumberOfRounds = 24,
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};
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static const uint64_t KeccakF_RoundConstants[cKeccakNumberOfRounds] = {
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0x0000000000000001ULL,
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0x0000000000008082ULL,
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0x800000000000808aULL,
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0x8000000080008000ULL,
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0x000000000000808bULL,
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0x0000000080000001ULL,
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0x8000000080008081ULL,
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0x8000000000008009ULL,
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0x000000000000008aULL,
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0x0000000000000088ULL,
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0x0000000080008009ULL,
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0x000000008000000aULL,
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0x000000008000808bULL,
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0x800000000000008bULL,
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0x8000000000008089ULL,
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0x8000000000008003ULL,
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0x8000000000008002ULL,
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0x8000000000000080ULL,
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0x000000000000800aULL,
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0x800000008000000aULL,
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0x8000000080008081ULL,
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0x8000000000008080ULL,
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0x0000000080000001ULL,
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0x8000000080008008ULL
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/* Elements should be 64-bit, but top half is always zero or 0x80000000.
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* It is encoded as a separate word below.
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* Same is true for 31th bits.
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*/
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static const uint16_t KeccakF_RoundConstants[cKeccakNumberOfRounds] = {
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0x0001UL,
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0x8082UL,
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0x808aUL,
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0x8000UL,
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0x808bUL,
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0x0001UL,
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0x8081UL,
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0x8009UL,
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0x008aUL,
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0x0088UL,
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0x8009UL,
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0x000aUL,
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0x808bUL,
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0x008bUL,
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0x8089UL,
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0x8003UL,
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0x8002UL,
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0x0080UL,
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0x800aUL,
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0x000aUL,
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0x8081UL,
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0x8080UL,
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0x0001UL,
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0x8008UL
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};
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/* 0th first - 0011 0011 0000 0111 1101 1101: */
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#define KeccakF_RoundConstantBit63 ((uint32_t)(0x3307dd00))
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/* 0th first - 0001 0110 0011 1000 0001 1011: */
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#define KeccakF_RoundConstantBit31 ((uint32_t)(0x16381b00))
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static const uint8_t KeccakF_RotationConstants[25] = {
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1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 2, 14, 27, 41, 56, 8, 25, 43, 62,
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@ -1075,7 +1083,9 @@ static void KeccakF(uint64_t *state)
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}
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/* Iota */
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state[0] ^= KeccakF_RoundConstants[round];
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state[0] ^= KeccakF_RoundConstants[round]
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| (uint32_t)((KeccakF_RoundConstantBit31 << round) & 0x80000000)
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| (uint64_t)((KeccakF_RoundConstantBit63 << round) & 0x80000000) << 32;
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}
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if (BB_BIG_ENDIAN) {
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