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SM3 with full unroll

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Zhi Guan
2019-08-14 23:58:56 +08:00
parent ef134a58f0
commit 686805edd2
1 changed files with 36 additions and 1 deletions
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37
crypto/sm3/sm3.c
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@@ -168,7 +168,11 @@ void sm3_compress(uint32_t digest[8], const unsigned char block[64])
W[j] = P1(W[j - 16] ^ W[j - 9] ^ ROL32(W[j - 3], 15))
^ ROL32(W[j - 13], 7) ^ W[j - 6];
for (j = 0; j < 16; j++) {
j = 0;
#define FULL_UNROLL
#ifndef FULL_UNROLL
for (; j < 16; j++) {
SS1 = ROL32((ROL32(A, 12) + E + K[j]), 7);
SS2 = SS1 ^ ROL32(A, 12);
TT1 = FF00(A, B, C) + D + SS2 + (W[j] ^ W[j + 4]);
@@ -197,6 +201,37 @@ void sm3_compress(uint32_t digest[8], const unsigned char block[64])
F = E;
E = P0(TT2);
}
#else
# define R(A, B, C, D, E, F, G, H, xx) \
SS1 = ROL32((ROL32(A, 12) + E + K[j]), 7); \
SS2 = SS1 ^ ROL32(A, 12); \
TT1 = FF##xx(A, B, C) + D + SS2 + (W[j] ^ W[j + 4]); \
TT2 = GG##xx(E, F, G) + H + SS1 + W[j]; \
B = ROL32(B, 9); \
H = TT1; \
F = ROL32(F, 19); \
D = P0(TT2); \
j++
# define R8(A, B, C, D, E, F, G, H, xx) \
R(A, B, C, D, E, F, G, H, xx); \
R(H, A, B, C, D, E, F, G, xx); \
R(G, H, A, B, C, D, E, F, xx); \
R(F, G, H, A, B, C, D, E, xx); \
R(E, F, G, H, A, B, C, D, xx); \
R(D, E, F, G, H, A, B, C, xx); \
R(C, D, E, F, G, H, A, B, xx); \
R(B, C, D, E, F, G, H, A, xx)
R8(A, B, C, D, E, F, G, H, 00);
R8(A, B, C, D, E, F, G, H, 00);
R8(A, B, C, D, E, F, G, H, 16);
R8(A, B, C, D, E, F, G, H, 16);
R8(A, B, C, D, E, F, G, H, 16);
R8(A, B, C, D, E, F, G, H, 16);
R8(A, B, C, D, E, F, G, H, 16);
R8(A, B, C, D, E, F, G, H, 16);
#endif
digest[0] ^= A;
digest[1] ^= B;