diff options
Diffstat (limited to 'drivers/staging/skein/skein_block.c')
| -rw-r--r-- | drivers/staging/skein/skein_block.c | 1012 |
1 files changed, 506 insertions, 506 deletions
diff --git a/drivers/staging/skein/skein_block.c b/drivers/staging/skein/skein_block.c index e62b6442783e..bb36860fafdf 100644 --- a/drivers/staging/skein/skein_block.c +++ b/drivers/staging/skein/skein_block.c @@ -40,10 +40,10 @@ /***************************** Skein_256 ******************************/ #if !(SKEIN_USE_ASM & 256) void Skein_256_Process_Block(struct skein_256_ctx *ctx, const u8 *blkPtr, size_t blkCnt, size_t byteCntAdd) - { /* do it in C */ - enum { - WCNT = SKEIN_256_STATE_WORDS - }; + { /* do it in C */ + enum { + WCNT = SKEIN_256_STATE_WORDS + }; #undef RCNT #define RCNT (SKEIN_256_ROUNDS_TOTAL/8) @@ -57,177 +57,177 @@ void Skein_256_Process_Block(struct skein_256_ctx *ctx, const u8 *blkPtr, size_t #if (RCNT % SKEIN_UNROLL_256) #error "Invalid SKEIN_UNROLL_256" /* sanity check on unroll count */ #endif - size_t r; - u64 kw[WCNT+4+RCNT*2]; /* key schedule words : chaining vars + tweak + "rotation"*/ + size_t r; + u64 kw[WCNT+4+RCNT*2]; /* key schedule words : chaining vars + tweak + "rotation"*/ #else - u64 kw[WCNT+4]; /* key schedule words : chaining vars + tweak */ + u64 kw[WCNT+4]; /* key schedule words : chaining vars + tweak */ #endif - u64 X0, X1, X2, X3; /* local copy of context vars, for speed */ - u64 w[WCNT]; /* local copy of input block */ + u64 X0, X1, X2, X3; /* local copy of context vars, for speed */ + u64 w[WCNT]; /* local copy of input block */ #ifdef SKEIN_DEBUG - const u64 *Xptr[4]; /* use for debugging (help compiler put Xn in registers) */ - Xptr[0] = &X0; Xptr[1] = &X1; Xptr[2] = &X2; Xptr[3] = &X3; + const u64 *Xptr[4]; /* use for debugging (help compiler put Xn in registers) */ + Xptr[0] = &X0; Xptr[1] = &X1; Xptr[2] = &X2; Xptr[3] = &X3; #endif - Skein_assert(blkCnt != 0); /* never call with blkCnt == 0! */ - ts[0] = ctx->h.T[0]; - ts[1] = ctx->h.T[1]; - do { - /* this implementation only supports 2**64 input bytes (no carry out here) */ - ts[0] += byteCntAdd; /* update processed length */ + Skein_assert(blkCnt != 0); /* never call with blkCnt == 0! */ + ts[0] = ctx->h.T[0]; + ts[1] = ctx->h.T[1]; + do { + /* this implementation only supports 2**64 input bytes (no carry out here) */ + ts[0] += byteCntAdd; /* update processed length */ - /* precompute the key schedule for this block */ - ks[0] = ctx->X[0]; - ks[1] = ctx->X[1]; - ks[2] = ctx->X[2]; - ks[3] = ctx->X[3]; - ks[4] = ks[0] ^ ks[1] ^ ks[2] ^ ks[3] ^ SKEIN_KS_PARITY; + /* precompute the key schedule for this block */ + ks[0] = ctx->X[0]; + ks[1] = ctx->X[1]; + ks[2] = ctx->X[2]; + ks[3] = ctx->X[3]; + ks[4] = ks[0] ^ ks[1] ^ ks[2] ^ ks[3] ^ SKEIN_KS_PARITY; - ts[2] = ts[0] ^ ts[1]; + ts[2] = ts[0] ^ ts[1]; - Skein_Get64_LSB_First(w, blkPtr, WCNT); /* get input block in little-endian format */ - DebugSaveTweak(ctx); - Skein_Show_Block(BLK_BITS, &ctx->h, ctx->X, blkPtr, w, ks, ts); + Skein_Get64_LSB_First(w, blkPtr, WCNT); /* get input block in little-endian format */ + DebugSaveTweak(ctx); + Skein_Show_Block(BLK_BITS, &ctx->h, ctx->X, blkPtr, w, ks, ts); - X0 = w[0] + ks[0]; /* do the first full key injection */ - X1 = w[1] + ks[1] + ts[0]; - X2 = w[2] + ks[2] + ts[1]; - X3 = w[3] + ks[3]; + X0 = w[0] + ks[0]; /* do the first full key injection */ + X1 = w[1] + ks[1] + ts[0]; + X2 = w[2] + ks[2] + ts[1]; + X3 = w[3] + ks[3]; - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INITIAL, Xptr); /* show starting state values */ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INITIAL, Xptr); /* show starting state values */ - blkPtr += SKEIN_256_BLOCK_BYTES; + blkPtr += SKEIN_256_BLOCK_BYTES; - /* run the rounds */ + /* run the rounds */ #define Round256(p0, p1, p2, p3, ROT, rNum) \ - X##p0 += X##p1; X##p1 = RotL_64(X##p1, ROT##_0); X##p1 ^= X##p0; \ - X##p2 += X##p3; X##p3 = RotL_64(X##p3, ROT##_1); X##p3 ^= X##p2; \ + X##p0 += X##p1; X##p1 = RotL_64(X##p1, ROT##_0); X##p1 ^= X##p0; \ + X##p2 += X##p3; X##p3 = RotL_64(X##p3, ROT##_1); X##p3 ^= X##p2; \ #if SKEIN_UNROLL_256 == 0 #define R256(p0, p1, p2, p3, ROT, rNum) /* fully unrolled */ \ - Round256(p0, p1, p2, p3, ROT, rNum) \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, rNum, Xptr); + Round256(p0, p1, p2, p3, ROT, rNum) \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, rNum, Xptr); #define I256(R) \ - X0 += ks[((R)+1) % 5]; /* inject the key schedule value */ \ - X1 += ks[((R)+2) % 5] + ts[((R)+1) % 3]; \ - X2 += ks[((R)+3) % 5] + ts[((R)+2) % 3]; \ - X3 += ks[((R)+4) % 5] + (R)+1; \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INJECT, Xptr); + X0 += ks[((R)+1) % 5]; /* inject the key schedule value */ \ + X1 += ks[((R)+2) % 5] + ts[((R)+1) % 3]; \ + X2 += ks[((R)+3) % 5] + ts[((R)+2) % 3]; \ + X3 += ks[((R)+4) % 5] + (R)+1; \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INJECT, Xptr); #else /* looping version */ #define R256(p0, p1, p2, p3, ROT, rNum) \ - Round256(p0, p1, p2, p3, ROT, rNum) \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, 4 * (r - 1) + rNum, Xptr); + Round256(p0, p1, p2, p3, ROT, rNum) \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, 4 * (r - 1) + rNum, Xptr); #define I256(R) \ - X0 += ks[r+(R)+0]; /* inject the key schedule value */ \ - X1 += ks[r+(R)+1] + ts[r+(R)+0]; \ - X2 += ks[r+(R)+2] + ts[r+(R)+1]; \ - X3 += ks[r+(R)+3] + r+(R); \ - ks[r + (R) + 4] = ks[r + (R) - 1]; /* rotate key schedule */\ - ts[r + (R) + 2] = ts[r + (R) - 1]; \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INJECT, Xptr); - - for (r = 1; r < 2 * RCNT; r += 2 * SKEIN_UNROLL_256) /* loop thru it */ + X0 += ks[r+(R)+0]; /* inject the key schedule value */ \ + X1 += ks[r+(R)+1] + ts[r+(R)+0]; \ + X2 += ks[r+(R)+2] + ts[r+(R)+1]; \ + X3 += ks[r+(R)+3] + r+(R); \ + ks[r + (R) + 4] = ks[r + (R) - 1]; /* rotate key schedule */\ + ts[r + (R) + 2] = ts[r + (R) - 1]; \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INJECT, Xptr); + + for (r = 1; r < 2 * RCNT; r += 2 * SKEIN_UNROLL_256) /* loop thru it */ #endif - { + { #define R256_8_rounds(R) \ - R256(0, 1, 2, 3, R_256_0, 8 * (R) + 1); \ - R256(0, 3, 2, 1, R_256_1, 8 * (R) + 2); \ - R256(0, 1, 2, 3, R_256_2, 8 * (R) + 3); \ - R256(0, 3, 2, 1, R_256_3, 8 * (R) + 4); \ - I256(2 * (R)); \ - R256(0, 1, 2, 3, R_256_4, 8 * (R) + 5); \ - R256(0, 3, 2, 1, R_256_5, 8 * (R) + 6); \ - R256(0, 1, 2, 3, R_256_6, 8 * (R) + 7); \ - R256(0, 3, 2, 1, R_256_7, 8 * (R) + 8); \ - I256(2 * (R) + 1); - - R256_8_rounds(0); + R256(0, 1, 2, 3, R_256_0, 8 * (R) + 1); \ + R256(0, 3, 2, 1, R_256_1, 8 * (R) + 2); \ + R256(0, 1, 2, 3, R_256_2, 8 * (R) + 3); \ + R256(0, 3, 2, 1, R_256_3, 8 * (R) + 4); \ + I256(2 * (R)); \ + R256(0, 1, 2, 3, R_256_4, 8 * (R) + 5); \ + R256(0, 3, 2, 1, R_256_5, 8 * (R) + 6); \ + R256(0, 1, 2, 3, R_256_6, 8 * (R) + 7); \ + R256(0, 3, 2, 1, R_256_7, 8 * (R) + 8); \ + I256(2 * (R) + 1); + + R256_8_rounds(0); #define R256_Unroll_R(NN) ((SKEIN_UNROLL_256 == 0 && SKEIN_256_ROUNDS_TOTAL/8 > (NN)) || (SKEIN_UNROLL_256 > (NN))) - #if R256_Unroll_R(1) - R256_8_rounds(1); - #endif - #if R256_Unroll_R(2) - R256_8_rounds(2); - #endif - #if R256_Unroll_R(3) - R256_8_rounds(3); - #endif - #if R256_Unroll_R(4) - R256_8_rounds(4); - #endif - #if R256_Unroll_R(5) - R256_8_rounds(5); - #endif - #if R256_Unroll_R(6) - R256_8_rounds(6); - #endif - #if R256_Unroll_R(7) - R256_8_rounds(7); - #endif - #if R256_Unroll_R(8) - R256_8_rounds(8); - #endif - #if R256_Unroll_R(9) - R256_8_rounds(9); - #endif - #if R256_Unroll_R(10) - R256_8_rounds(10); - #endif - #if R256_Unroll_R(11) - R256_8_rounds(11); - #endif - #if R256_Unroll_R(12) - R256_8_rounds(12); - #endif - #if R256_Unroll_R(13) - R256_8_rounds(13); - #endif - #if R256_Unroll_R(14) - R256_8_rounds(14); - #endif - #if (SKEIN_UNROLL_256 > 14) + #if R256_Unroll_R(1) + R256_8_rounds(1); + #endif + #if R256_Unroll_R(2) + R256_8_rounds(2); + #endif + #if R256_Unroll_R(3) + R256_8_rounds(3); + #endif + #if R256_Unroll_R(4) + R256_8_rounds(4); + #endif + #if R256_Unroll_R(5) + R256_8_rounds(5); + #endif + #if R256_Unroll_R(6) + R256_8_rounds(6); + #endif + #if R256_Unroll_R(7) + R256_8_rounds(7); + #endif + #if R256_Unroll_R(8) + R256_8_rounds(8); + #endif + #if R256_Unroll_R(9) + R256_8_rounds(9); + #endif + #if R256_Unroll_R(10) + R256_8_rounds(10); + #endif + #if R256_Unroll_R(11) + R256_8_rounds(11); + #endif + #if R256_Unroll_R(12) + R256_8_rounds(12); + #endif + #if R256_Unroll_R(13) + R256_8_rounds(13); + #endif + #if R256_Unroll_R(14) + R256_8_rounds(14); + #endif + #if (SKEIN_UNROLL_256 > 14) #error "need more unrolling in Skein_256_Process_Block" - #endif - } - /* do the final "feedforward" xor, update context chaining vars */ - ctx->X[0] = X0 ^ w[0]; - ctx->X[1] = X1 ^ w[1]; - ctx->X[2] = X2 ^ w[2]; - ctx->X[3] = X3 ^ w[3]; - - Skein_Show_Round(BLK_BITS, &ctx->h, SKEIN_RND_FEED_FWD, ctx->X); - - ts[1] &= ~SKEIN_T1_FLAG_FIRST; - } - while (--blkCnt); - ctx->h.T[0] = ts[0]; - ctx->h.T[1] = ts[1]; - } + #endif + } + /* do the final "feedforward" xor, update context chaining vars */ + ctx->X[0] = X0 ^ w[0]; + ctx->X[1] = X1 ^ w[1]; + ctx->X[2] = X2 ^ w[2]; + ctx->X[3] = X3 ^ w[3]; + + Skein_Show_Round(BLK_BITS, &ctx->h, SKEIN_RND_FEED_FWD, ctx->X); + + ts[1] &= ~SKEIN_T1_FLAG_FIRST; + } + while (--blkCnt); + ctx->h.T[0] = ts[0]; + ctx->h.T[1] = ts[1]; +} #if defined(SKEIN_CODE_SIZE) || defined(SKEIN_PERF) size_t Skein_256_Process_Block_CodeSize(void) - { - return ((u8 *) Skein_256_Process_Block_CodeSize) - - ((u8 *) Skein_256_Process_Block); - } +{ + return ((u8 *) Skein_256_Process_Block_CodeSize) - + ((u8 *) Skein_256_Process_Block); +} unsigned int Skein_256_Unroll_Cnt(void) - { - return SKEIN_UNROLL_256; - } +{ + return SKEIN_UNROLL_256; +} #endif #endif /***************************** Skein_512 ******************************/ #if !(SKEIN_USE_ASM & 512) void Skein_512_Process_Block(struct skein_512_ctx *ctx, const u8 *blkPtr, size_t blkCnt, size_t byteCntAdd) - { /* do it in C */ - enum { - WCNT = SKEIN_512_STATE_WORDS - }; +{ /* do it in C */ + enum { + WCNT = SKEIN_512_STATE_WORDS + }; #undef RCNT #define RCNT (SKEIN_512_ROUNDS_TOTAL/8) @@ -241,200 +241,200 @@ void Skein_512_Process_Block(struct skein_512_ctx *ctx, const u8 *blkPtr, size_t #if (RCNT % SKEIN_UNROLL_512) #error "Invalid SKEIN_UNROLL_512" /* sanity check on unroll count */ #endif - size_t r; - u64 kw[WCNT+4+RCNT*2]; /* key schedule words : chaining vars + tweak + "rotation"*/ + size_t r; + u64 kw[WCNT+4+RCNT*2]; /* key schedule words : chaining vars + tweak + "rotation"*/ #else - u64 kw[WCNT+4]; /* key schedule words : chaining vars + tweak */ + u64 kw[WCNT+4]; /* key schedule words : chaining vars + tweak */ #endif - u64 X0, X1, X2, X3, X4, X5, X6, X7; /* local copy of vars, for speed */ - u64 w[WCNT]; /* local copy of input block */ + u64 X0, X1, X2, X3, X4, X5, X6, X7; /* local copy of vars, for speed */ + u64 w[WCNT]; /* local copy of input block */ #ifdef SKEIN_DEBUG - const u64 *Xptr[8]; /* use for debugging (help compiler put Xn in registers) */ - Xptr[0] = &X0; Xptr[1] = &X1; Xptr[2] = &X2; Xptr[3] = &X3; - Xptr[4] = &X4; Xptr[5] = &X5; Xptr[6] = &X6; Xptr[7] = &X7; + const u64 *Xptr[8]; /* use for debugging (help compiler put Xn in registers) */ + Xptr[0] = &X0; Xptr[1] = &X1; Xptr[2] = &X2; Xptr[3] = &X3; + Xptr[4] = &X4; Xptr[5] = &X5; Xptr[6] = &X6; Xptr[7] = &X7; #endif - Skein_assert(blkCnt != 0); /* never call with blkCnt == 0! */ - ts[0] = ctx->h.T[0]; - ts[1] = ctx->h.T[1]; - do { - /* this implementation only supports 2**64 input bytes (no carry out here) */ - ts[0] += byteCntAdd; /* update processed length */ - - /* precompute the key schedule for this block */ - ks[0] = ctx->X[0]; - ks[1] = ctx->X[1]; - ks[2] = ctx->X[2]; - ks[3] = ctx->X[3]; - ks[4] = ctx->X[4]; - ks[5] = ctx->X[5]; - ks[6] = ctx->X[6]; - ks[7] = ctx->X[7]; - ks[8] = ks[0] ^ ks[1] ^ ks[2] ^ ks[3] ^ - ks[4] ^ ks[5] ^ ks[6] ^ ks[7] ^ SKEIN_KS_PARITY; - - ts[2] = ts[0] ^ ts[1]; - - Skein_Get64_LSB_First(w, blkPtr, WCNT); /* get input block in little-endian format */ - DebugSaveTweak(ctx); - Skein_Show_Block(BLK_BITS, &ctx->h, ctx->X, blkPtr, w, ks, ts); - - X0 = w[0] + ks[0]; /* do the first full key injection */ - X1 = w[1] + ks[1]; - X2 = w[2] + ks[2]; - X3 = w[3] + ks[3]; - X4 = w[4] + ks[4]; - X5 = w[5] + ks[5] + ts[0]; - X6 = w[6] + ks[6] + ts[1]; - X7 = w[7] + ks[7]; - - blkPtr += SKEIN_512_BLOCK_BYTES; - - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INITIAL, Xptr); - /* run the rounds */ + Skein_assert(blkCnt != 0); /* never call with blkCnt == 0! */ + ts[0] = ctx->h.T[0]; + ts[1] = ctx->h.T[1]; + do { + /* this implementation only supports 2**64 input bytes (no carry out here) */ + ts[0] += byteCntAdd; /* update processed length */ + + /* precompute the key schedule for this block */ + ks[0] = ctx->X[0]; + ks[1] = ctx->X[1]; + ks[2] = ctx->X[2]; + ks[3] = ctx->X[3]; + ks[4] = ctx->X[4]; + ks[5] = ctx->X[5]; + ks[6] = ctx->X[6]; + ks[7] = ctx->X[7]; + ks[8] = ks[0] ^ ks[1] ^ ks[2] ^ ks[3] ^ + ks[4] ^ ks[5] ^ ks[6] ^ ks[7] ^ SKEIN_KS_PARITY; + + ts[2] = ts[0] ^ ts[1]; + + Skein_Get64_LSB_First(w, blkPtr, WCNT); /* get input block in little-endian format */ + DebugSaveTweak(ctx); + Skein_Show_Block(BLK_BITS, &ctx->h, ctx->X, blkPtr, w, ks, ts); + + X0 = w[0] + ks[0]; /* do the first full key injection */ + X1 = w[1] + ks[1]; + X2 = w[2] + ks[2]; + X3 = w[3] + ks[3]; + X4 = w[4] + ks[4]; + X5 = w[5] + ks[5] + ts[0]; + X6 = w[6] + ks[6] + ts[1]; + X7 = w[7] + ks[7]; + + blkPtr += SKEIN_512_BLOCK_BYTES; + + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INITIAL, Xptr); + /* run the rounds */ #define Round512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, rNum) \ - X##p0 += X##p1; X##p1 = RotL_64(X##p1, ROT##_0); X##p1 ^= X##p0; \ - X##p2 += X##p3; X##p3 = RotL_64(X##p3, ROT##_1); X##p3 ^= X##p2; \ - X##p4 += X##p5; X##p5 = RotL_64(X##p5, ROT##_2); X##p5 ^= X##p4; \ - X##p6 += X##p7; X##p7 = RotL_64(X##p7, ROT##_3); X##p7 ^= X##p6; \ + X##p0 += X##p1; X##p1 = RotL_64(X##p1, ROT##_0); X##p1 ^= X##p0; \ + X##p2 += X##p3; X##p3 = RotL_64(X##p3, ROT##_1); X##p3 ^= X##p2; \ + X##p4 += X##p5; X##p5 = RotL_64(X##p5, ROT##_2); X##p5 ^= X##p4; \ + X##p6 += X##p7; X##p7 = RotL_64(X##p7, ROT##_3); X##p7 ^= X##p6; \ #if SKEIN_UNROLL_512 == 0 #define R512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, rNum) /* unrolled */ \ - Round512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, rNum) \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, rNum, Xptr); + Round512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, rNum) \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, rNum, Xptr); #define I512(R) \ - X0 += ks[((R) + 1) % 9]; /* inject the key schedule value */ \ - X1 += ks[((R) + 2) % 9]; \ - X2 += ks[((R) + 3) % 9]; \ - X3 += ks[((R) + 4) % 9]; \ - X4 += ks[((R) + 5) % 9]; \ - X5 += ks[((R) + 6) % 9] + ts[((R) + 1) % 3]; \ - X6 += ks[((R) + 7) % 9] + ts[((R) + 2) % 3]; \ - X7 += ks[((R) + 8) % 9] + (R) + 1; \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INJECT, Xptr); + X0 += ks[((R) + 1) % 9]; /* inject the key schedule value */ \ + X1 += ks[((R) + 2) % 9]; \ + X2 += ks[((R) + 3) % 9]; \ + X3 += ks[((R) + 4) % 9]; \ + X4 += ks[((R) + 5) % 9]; \ + X5 += ks[((R) + 6) % 9] + ts[((R) + 1) % 3]; \ + X6 += ks[((R) + 7) % 9] + ts[((R) + 2) % 3]; \ + X7 += ks[((R) + 8) % 9] + (R) + 1; \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INJECT, Xptr); #else /* looping version */ #define R512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, rNum) \ - Round512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, rNum) \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, 4 * (r - 1) + rNum, Xptr); + Round512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, rNum) \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, 4 * (r - 1) + rNum, Xptr); #define I512(R) \ - X0 += ks[r + (R) + 0]; /* inject the key schedule value */ \ - X1 += ks[r + (R) + 1]; \ - X2 += ks[r + (R) + 2]; \ - X3 += ks[r + (R) + 3]; \ - X4 += ks[r + (R) + 4]; \ - X5 += ks[r + (R) + 5] + ts[r + (R) + 0]; \ - X6 += ks[r + (R) + 6] + ts[r + (R) + 1]; \ - X7 += ks[r + (R) + 7] + r + (R); \ - ks[r + (R) + 8] = ks[r + (R) - 1]; /* rotate key schedule */ \ - ts[r + (R) + 2] = ts[r + (R) - 1]; \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INJECT, Xptr); - - for (r = 1; r < 2 * RCNT; r += 2 * SKEIN_UNROLL_512) /* loop thru it */ + X0 += ks[r + (R) + 0]; /* inject the key schedule value */ \ + X1 += ks[r + (R) + 1]; \ + X2 += ks[r + (R) + 2]; \ + X3 += ks[r + (R) + 3]; \ + X4 += ks[r + (R) + 4]; \ + X5 += ks[r + (R) + 5] + ts[r + (R) + 0]; \ + X6 += ks[r + (R) + 6] + ts[r + (R) + 1]; \ + X7 += ks[r + (R) + 7] + r + (R); \ + ks[r + (R) + 8] = ks[r + (R) - 1]; /* rotate key schedule */ \ + ts[r + (R) + 2] = ts[r + (R) - 1]; \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INJECT, Xptr); + + for (r = 1; r < 2 * RCNT; r += 2 * SKEIN_UNROLL_512) /* loop thru it */ #endif /* end of looped code definitions */ - { + { #define R512_8_rounds(R) /* do 8 full rounds */ \ - R512(0, 1, 2, 3, 4, 5, 6, 7, R_512_0, 8 * (R) + 1); \ - R512(2, 1, 4, 7, 6, 5, 0, 3, R_512_1, 8 * (R) + 2); \ - R512(4, 1, 6, 3, 0, 5, 2, 7, R_512_2, 8 * (R) + 3); \ - R512(6, 1, 0, 7, 2, 5, 4, 3, R_512_3, 8 * (R) + 4); \ - I512(2 * (R)); \ - R512(0, 1, 2, 3, 4, 5, 6, 7, R_512_4, 8 * (R) + 5); \ - R512(2, 1, 4, 7, 6, 5, 0, 3, R_512_5, 8 * (R) + 6); \ - R512(4, 1, 6, 3, 0, 5, 2, 7, R_512_6, 8 * (R) + 7); \ - R512(6, 1, 0, 7, 2, 5, 4, 3, R_512_7, 8 * (R) + 8); \ - I512(2 * (R) + 1); /* and key injection */ - - R512_8_rounds(0); + R512(0, 1, 2, 3, 4, 5, 6, 7, R_512_0, 8 * (R) + 1); \ + R512(2, 1, 4, 7, 6, 5, 0, 3, R_512_1, 8 * (R) + 2); \ + R512(4, 1, 6, 3, 0, 5, 2, 7, R_512_2, 8 * (R) + 3); \ + R512(6, 1, 0, 7, 2, 5, 4, 3, R_512_3, 8 * (R) + 4); \ + I512(2 * (R)); \ + R512(0, 1, 2, 3, 4, 5, 6, 7, R_512_4, 8 * (R) + 5); \ + R512(2, 1, 4, 7, 6, 5, 0, 3, R_512_5, 8 * (R) + 6); \ + R512(4, 1, 6, 3, 0, 5, 2, 7, R_512_6, 8 * (R) + 7); \ + R512(6, 1, 0, 7, 2, 5, 4, 3, R_512_7, 8 * (R) + 8); \ + I512(2 * (R) + 1); /* and key injection */ + + R512_8_rounds(0); #define R512_Unroll_R(NN) ((SKEIN_UNROLL_512 == 0 && SKEIN_512_ROUNDS_TOTAL/8 > (NN)) || (SKEIN_UNROLL_512 > (NN))) - #if R512_Unroll_R(1) - R512_8_rounds(1); - #endif - #if R512_Unroll_R(2) - R512_8_rounds(2); - #endif - #if R512_Unroll_R(3) - R512_8_rounds(3); - #endif - #if R512_Unroll_R(4) - R512_8_rounds(4); - #endif - #if R512_Unroll_R(5) - R512_8_rounds(5); - #endif - #if R512_Unroll_R(6) - R512_8_rounds(6); - #endif - #if R512_Unroll_R(7) - R512_8_rounds(7); - #endif - #if R512_Unroll_R(8) - R512_8_rounds(8); - #endif - #if R512_Unroll_R(9) - R512_8_rounds(9); - #endif - #if R512_Unroll_R(10) - R512_8_rounds(10); - #endif - #if R512_Unroll_R(11) - R512_8_rounds(11); - #endif - #if R512_Unroll_R(12) - R512_8_rounds(12); - #endif - #if R512_Unroll_R(13) - R512_8_rounds(13); - #endif - #if R512_Unroll_R(14) - R512_8_rounds(14); - #endif - #if (SKEIN_UNROLL_512 > 14) + #if R512_Unroll_R(1) + R512_8_rounds(1); + #endif + #if R512_Unroll_R(2) + R512_8_rounds(2); + #endif + #if R512_Unroll_R(3) + R512_8_rounds(3); + #endif + #if R512_Unroll_R(4) + R512_8_rounds(4); + #endif + #if R512_Unroll_R(5) + R512_8_rounds(5); + #endif + #if R512_Unroll_R(6) + R512_8_rounds(6); + #endif + #if R512_Unroll_R(7) + R512_8_rounds(7); + #endif + #if R512_Unroll_R(8) + R512_8_rounds(8); + #endif + #if R512_Unroll_R(9) + R512_8_rounds(9); + #endif + #if R512_Unroll_R(10) + R512_8_rounds(10); + #endif + #if R512_Unroll_R(11) + R512_8_rounds(11); + #endif + #if R512_Unroll_R(12) + R512_8_rounds(12); + #endif + #if R512_Unroll_R(13) + R512_8_rounds(13); + #endif + #if R512_Unroll_R(14) + R512_8_rounds(14); + #endif + #if (SKEIN_UNROLL_512 > 14) #error "need more unrolling in Skein_512_Process_Block" - #endif - } - - /* do the final "feedforward" xor, update context chaining vars */ - ctx->X[0] = X0 ^ w[0]; - ctx->X[1] = X1 ^ w[1]; - ctx->X[2] = X2 ^ w[2]; - ctx->X[3] = X3 ^ w[3]; - ctx->X[4] = X4 ^ w[4]; - ctx->X[5] = X5 ^ w[5]; - ctx->X[6] = X6 ^ w[6]; - ctx->X[7] = X7 ^ w[7]; - Skein_Show_Round(BLK_BITS, &ctx->h, SKEIN_RND_FEED_FWD, ctx->X); - - ts[1] &= ~SKEIN_T1_FLAG_FIRST; - } - while (--blkCnt); - ctx->h.T[0] = ts[0]; - ctx->h.T[1] = ts[1]; - } + #endif + } + + /* do the final "feedforward" xor, update context chaining vars */ + ctx->X[0] = X0 ^ w[0]; + ctx->X[1] = X1 ^ w[1]; + ctx->X[2] = X2 ^ w[2]; + ctx->X[3] = X3 ^ w[3]; + ctx->X[4] = X4 ^ w[4]; + ctx->X[5] = X5 ^ w[5]; + ctx->X[6] = X6 ^ w[6]; + ctx->X[7] = X7 ^ w[7]; + Skein_Show_Round(BLK_BITS, &ctx->h, SKEIN_RND_FEED_FWD, ctx->X); + + ts[1] &= ~SKEIN_T1_FLAG_FIRST; + } + while (--blkCnt); + ctx->h.T[0] = ts[0]; + ctx->h.T[1] = ts[1]; +} #if defined(SKEIN_CODE_SIZE) || defined(SKEIN_PERF) size_t Skein_512_Process_Block_CodeSize(void) - { - return ((u8 *) Skein_512_Process_Block_CodeSize) - - ((u8 *) Skein_512_Process_Block); - } +{ + return ((u8 *) Skein_512_Process_Block_CodeSize) - + ((u8 *) Skein_512_Process_Block); +} unsigned int Skein_512_Unroll_Cnt(void) - { - return SKEIN_UNROLL_512; - } +{ + return SKEIN_UNROLL_512; +} #endif #endif /***************************** Skein1024 ******************************/ #if !(SKEIN_USE_ASM & 1024) void Skein1024_Process_Block(struct skein1024_ctx *ctx, const u8 *blkPtr, size_t blkCnt, size_t byteCntAdd) - { /* do it in C, always looping (unrolled is bigger AND slower!) */ - enum { - WCNT = SKEIN1024_STATE_WORDS - }; +{ /* do it in C, always looping (unrolled is bigger AND slower!) */ + enum { + WCNT = SKEIN1024_STATE_WORDS + }; #undef RCNT #define RCNT (SKEIN1024_ROUNDS_TOTAL/8) @@ -448,239 +448,239 @@ void Skein1024_Process_Block(struct skein1024_ctx *ctx, const u8 *blkPtr, size_t #if (RCNT % SKEIN_UNROLL_1024) #error "Invalid SKEIN_UNROLL_1024" /* sanity check on unroll count */ #endif - size_t r; - u64 kw[WCNT+4+RCNT*2]; /* key schedule words : chaining vars + tweak + "rotation"*/ + size_t r; + u64 kw[WCNT+4+RCNT*2]; /* key schedule words : chaining vars + tweak + "rotation"*/ #else - u64 kw[WCNT+4]; /* key schedule words : chaining vars + tweak */ + u64 kw[WCNT+4]; /* key schedule words : chaining vars + tweak */ #endif - u64 X00, X01, X02, X03, X04, X05, X06, X07, /* local copy of vars, for speed */ - X08, X09, X10, X11, X12, X13, X14, X15; - u64 w[WCNT]; /* local copy of input block */ + u64 X00, X01, X02, X03, X04, X05, X06, X07, /* local copy of vars, for speed */ + X08, X09, X10, X11, X12, X13, X14, X15; + u64 w[WCNT]; /* local copy of input block */ #ifdef SKEIN_DEBUG - const u64 *Xptr[16]; /* use for debugging (help compiler put Xn in registers) */ - Xptr[0] = &X00; Xptr[1] = &X01; Xptr[2] = &X02; Xptr[3] = &X03; - Xptr[4] = &X04; Xptr[5] = &X05; Xptr[6] = &X06; Xptr[7] = &X07; - Xptr[8] = &X08; Xptr[9] = &X09; Xptr[10] = &X10; Xptr[11] = &X11; - Xptr[12] = &X12; Xptr[13] = &X13; Xptr[14] = &X14; Xptr[15] = &X15; + const u64 *Xptr[16]; /* use for debugging (help compiler put Xn in registers) */ + Xptr[0] = &X00; Xptr[1] = &X01; Xptr[2] = &X02; Xptr[3] = &X03; + Xptr[4] = &X04; Xptr[5] = &X05; Xptr[6] = &X06; Xptr[7] = &X07; + Xptr[8] = &X08; Xptr[9] = &X09; Xptr[10] = &X10; Xptr[11] = &X11; + Xptr[12] = &X12; Xptr[13] = &X13; Xptr[14] = &X14; Xptr[15] = &X15; #endif - Skein_assert(blkCnt != 0); /* never call with blkCnt == 0! */ - ts[0] = ctx->h.T[0]; - ts[1] = ctx->h.T[1]; - do { - /* this implementation only supports 2**64 input bytes (no carry out here) */ - ts[0] += byteCntAdd; /* update processed length */ - - /* precompute the key schedule for this block */ - ks[0] = ctx->X[0]; - ks[1] = ctx->X[1]; - ks[2] = ctx->X[2]; - ks[3] = ctx->X[3]; - ks[4] = ctx->X[4]; - ks[5] = ctx->X[5]; - ks[6] = ctx->X[6]; - ks[7] = ctx->X[7]; - ks[8] = ctx->X[8]; - ks[9] = ctx->X[9]; - ks[10] = ctx->X[10]; - ks[11] = ctx->X[11]; - ks[12] = ctx->X[12]; - ks[13] = ctx->X[13]; - ks[14] = ctx->X[14]; - ks[15] = ctx->X[15]; - ks[16] = ks[0] ^ ks[1] ^ ks[2] ^ ks[3] ^ - ks[4] ^ ks[5] ^ ks[6] ^ ks[7] ^ - ks[8] ^ ks[9] ^ ks[10] ^ ks[11] ^ - ks[12] ^ ks[13] ^ ks[14] ^ ks[15] ^ SKEIN_KS_PARITY; - - ts[2] = ts[0] ^ ts[1]; - - Skein_Get64_LSB_First(w, blkPtr, WCNT); /* get input block in little-endian format */ - DebugSaveTweak(ctx); - Skein_Show_Block(BLK_BITS, &ctx->h, ctx->X, blkPtr, w, ks, ts); - - X00 = w[0] + ks[0]; /* do the first full key injection */ - X01 = w[1] + ks[1]; - X02 = w[2] + ks[2]; - X03 = w[3] + ks[3]; - X04 = w[4] + ks[4]; - X05 = w[5] + ks[5]; - X06 = w[6] + ks[6]; - X07 = w[7] + ks[7]; - X08 = w[8] + ks[8]; - X09 = w[9] + ks[9]; - X10 = w[10] + ks[10]; - X11 = w[11] + ks[11]; - X12 = w[12] + ks[12]; - X13 = w[13] + ks[13] + ts[0]; - X14 = w[14] + ks[14] + ts[1]; - X15 = w[15] + ks[15]; - - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INITIAL, Xptr); + Skein_assert(blkCnt != 0); /* never call with blkCnt == 0! */ + ts[0] = ctx->h.T[0]; + ts[1] = ctx->h.T[1]; + do { + /* this implementation only supports 2**64 input bytes (no carry out here) */ + ts[0] += byteCntAdd; /* update processed length */ + + /* precompute the key schedule for this block */ + ks[0] = ctx->X[0]; + ks[1] = ctx->X[1]; + ks[2] = ctx->X[2]; + ks[3] = ctx->X[3]; + ks[4] = ctx->X[4]; + ks[5] = ctx->X[5]; + ks[6] = ctx->X[6]; + ks[7] = ctx->X[7]; + ks[8] = ctx->X[8]; + ks[9] = ctx->X[9]; + ks[10] = ctx->X[10]; + ks[11] = ctx->X[11]; + ks[12] = ctx->X[12]; + ks[13] = ctx->X[13]; + ks[14] = ctx->X[14]; + ks[15] = ctx->X[15]; + ks[16] = ks[0] ^ ks[1] ^ ks[2] ^ ks[3] ^ + ks[4] ^ ks[5] ^ ks[6] ^ ks[7] ^ + ks[8] ^ ks[9] ^ ks[10] ^ ks[11] ^ + ks[12] ^ ks[13] ^ ks[14] ^ ks[15] ^ SKEIN_KS_PARITY; + + ts[2] = ts[0] ^ ts[1]; + + Skein_Get64_LSB_First(w, blkPtr, WCNT); /* get input block in little-endian format */ + DebugSaveTweak(ctx); + Skein_Show_Block(BLK_BITS, &ctx->h, ctx->X, blkPtr, w, ks, ts); + + X00 = w[0] + ks[0]; /* do the first full key injection */ + X01 = w[1] + ks[1]; + X02 = w[2] + ks[2]; + X03 = w[3] + ks[3]; + X04 = w[4] + ks[4]; + X05 = w[5] + ks[5]; + X06 = w[6] + ks[6]; + X07 = w[7] + ks[7]; + X08 = w[8] + ks[8]; + X09 = w[9] + ks[9]; + X10 = w[10] + ks[10]; + X11 = w[11] + ks[11]; + X12 = w[12] + ks[12]; + X13 = w[13] + ks[13] + ts[0]; + X14 = w[14] + ks[14] + ts[1]; + X15 = w[15] + ks[15]; + + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INITIAL, Xptr); #define Round1024(p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, pA, pB, pC, pD, pE, pF, ROT, rNum) \ - X##p0 += X##p1; X##p1 = RotL_64(X##p1, ROT##_0); X##p1 ^= X##p0; \ - X##p2 += X##p3; X##p3 = RotL_64(X##p3, ROT##_1); X##p3 ^= X##p2; \ - X##p4 += X##p5; X##p5 = RotL_64(X##p5, ROT##_2); X##p5 ^= X##p4; \ - X##p6 += X##p7; X##p7 = RotL_64(X##p7, ROT##_3); X##p7 ^= X##p6; \ - X##p8 += X##p9; X##p9 = RotL_64(X##p9, ROT##_4); X##p9 ^= X##p8; \ - X##pA += X##pB; X##pB = RotL_64(X##pB, ROT##_5); X##pB ^= X##pA; \ - X##pC += X##pD; X##pD = RotL_64(X##pD, ROT##_6); X##pD ^= X##pC; \ - X##pE += X##pF; X##pF = RotL_64(X##pF, ROT##_7); X##pF ^= X##pE; \ + X##p0 += X##p1; X##p1 = RotL_64(X##p1, ROT##_0); X##p1 ^= X##p0; \ + X##p2 += X##p3; X##p3 = RotL_64(X##p3, ROT##_1); X##p3 ^= X##p2; \ + X##p4 += X##p5; X##p5 = RotL_64(X##p5, ROT##_2); X##p5 ^= X##p4; \ + X##p6 += X##p7; X##p7 = RotL_64(X##p7, ROT##_3); X##p7 ^= X##p6; \ + X##p8 += X##p9; X##p9 = RotL_64(X##p9, ROT##_4); X##p9 ^= X##p8; \ + X##pA += X##pB; X##pB = RotL_64(X##pB, ROT##_5); X##pB ^= X##pA; \ + X##pC += X##pD; X##pD = RotL_64(X##pD, ROT##_6); X##pD ^= X##pC; \ + X##pE += X##pF; X##pF = RotL_64(X##pF, ROT##_7); X##pF ^= X##pE; \ #if SKEIN_UNROLL_1024 == 0 #define R1024(p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, pA, pB, pC, pD, pE, pF, ROT, rn) \ - Round1024(p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, pA, pB, pC, pD, pE, pF, ROT, rn) \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, rn, Xptr); + Round1024(p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, pA, pB, pC, pD, pE, pF, ROT, rn) \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, rn, Xptr); #define I1024(R) \ - X00 += ks[((R) + 1) % 17]; /* inject the key schedule value */ \ - X01 += ks[((R) + 2) % 17]; \ - X02 += ks[((R) + 3) % 17]; \ - X03 += ks[((R) + 4) % 17]; \ - X04 += ks[((R) + 5) % 17]; \ - X05 += ks[((R) + 6) % 17]; \ - X06 += ks[((R) + 7) % 17]; \ - X07 += ks[((R) + 8) % 17]; \ - X08 += ks[((R) + 9) % 17]; \ - X09 += ks[((R) + 10) % 17]; \ - X10 += ks[((R) + 11) % 17]; \ - X11 += ks[((R) + 12) % 17]; \ - X12 += ks[((R) + 13) % 17]; \ - X13 += ks[((R) + 14) % 17] + ts[((R) + 1) % 3]; \ - X14 += ks[((R) + 15) % 17] + ts[((R) + 2) % 3]; \ - X15 += ks[((R) + 16) % 17] + (R) + 1; \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INJECT, Xptr); + X00 += ks[((R) + 1) % 17]; /* inject the key schedule value */ \ + X01 += ks[((R) + 2) % 17]; \ + X02 += ks[((R) + 3) % 17]; \ + X03 += ks[((R) + 4) % 17]; \ + X04 += ks[((R) + 5) % 17]; \ + X05 += ks[((R) + 6) % 17]; \ + X06 += ks[((R) + 7) % 17]; \ + X07 += ks[((R) + 8) % 17]; \ + X08 += ks[((R) + 9) % 17]; \ + X09 += ks[((R) + 10) % 17]; \ + X10 += ks[((R) + 11) % 17]; \ + X11 += ks[((R) + 12) % 17]; \ + X12 += ks[((R) + 13) % 17]; \ + X13 += ks[((R) + 14) % 17] + ts[((R) + 1) % 3]; \ + X14 += ks[((R) + 15) % 17] + ts[((R) + 2) % 3]; \ + X15 += ks[((R) + 16) % 17] + (R) + 1; \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INJECT, Xptr); #else /* looping version */ #define R1024(p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, pA, pB, pC, pD, pE, pF, ROT, rn) \ - Round1024(p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, pA, pB, pC, pD, pE, pF, ROT, rn) \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, 4 * (r - 1) + rn, Xptr); + Round1024(p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, pA, pB, pC, pD, pE, pF, ROT, rn) \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, 4 * (r - 1) + rn, Xptr); #define I1024(R) \ - X00 += ks[r + (R) + 0]; /* inject the key schedule value */ \ - X01 += ks[r + (R) + 1]; \ - X02 += ks[r + (R) + 2]; \ - X03 += ks[r + (R) + 3]; \ - X04 += ks[r + (R) + 4]; \ - X05 += ks[r + (R) + 5]; \ - X06 += ks[r + (R) + 6]; \ - X07 += ks[r + (R) + 7]; \ - X08 += ks[r + (R) + 8]; \ - X09 += ks[r + (R) + 9]; \ - X10 += ks[r + (R) + 10]; \ - X11 += ks[r + (R) + 11]; \ - X12 += ks[r + (R) + 12]; \ - X13 += ks[r + (R) + 13] + ts[r + (R) + 0]; \ - X14 += ks[r + (R) + 14] + ts[r + (R) + 1]; \ - X15 += ks[r + (R) + 15] + r + (R); \ - ks[r + (R) + 16] = ks[r + (R) - 1]; /* rotate key schedule */\ - ts[r + (R) + 2] = ts[r + (R) - 1]; \ - Skein_Show_R_Ptr(BLK_BITSi, &ctx->h, SKEIN_RND_KEY_INJECT, Xptr); - - for (r = 1; r <= 2 * RCNT; r += 2 * SKEIN_UNROLL_1024) /* loop thru it */ + X00 += ks[r + (R) + 0]; /* inject the key schedule value */ \ + X01 += ks[r + (R) + 1]; \ + X02 += ks[r + (R) + 2]; \ + X03 += ks[r + (R) + 3]; \ + X04 += ks[r + (R) + 4]; \ + X05 += ks[r + (R) + 5]; \ + X06 += ks[r + (R) + 6]; \ + X07 += ks[r + (R) + 7]; \ + X08 += ks[r + (R) + 8]; \ + X09 += ks[r + (R) + 9]; \ + X10 += ks[r + (R) + 10]; \ + X11 += ks[r + (R) + 11]; \ + X12 += ks[r + (R) + 12]; \ + X13 += ks[r + (R) + 13] + ts[r + (R) + 0]; \ + X14 += ks[r + (R) + 14] + ts[r + (R) + 1]; \ + X15 += ks[r + (R) + 15] + r + (R); \ + ks[r + (R) + 16] = ks[r + (R) - 1]; /* rotate key schedule */\ + ts[r + (R) + 2] = ts[r + (R) - 1]; \ + Skein_Show_R_Ptr(BLK_BITSi, &ctx->h, SKEIN_RND_KEY_INJECT, Xptr); + + for (r = 1; r <= 2 * RCNT; r += 2 * SKEIN_UNROLL_1024) /* loop thru it */ #endif - { + { #define R1024_8_rounds(R) /* do 8 full rounds */ \ - R1024(00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, R1024_0, 8*(R) + 1); \ - R1024(00, 09, 02, 13, 06, 11, 04, 15, 10, 07, 12, 03, 14, 05, 08, 01, R1024_1, 8*(R) + 2); \ - R1024(00, 07, 02, 05, 04, 03, 06, 01, 12, 15, 14, 13, 08, 11, 10, 09, R1024_2, 8*(R) + 3); \ - R1024(00, 15, 02, 11, 06, 13, 04, 09, 14, 01, 08, 05, 10, 03, 12, 07, R1024_3, 8*(R) + 4); \ - I1024(2*(R)); \ - R1024(00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, R1024_4, 8*(R) + 5); \ - R1024(00, 09, 02, 13, 06, 11, 04, 15, 10, 07, 12, 03, 14, 05, 08, 01, R1024_5, 8*(R) + 6); \ - R1024(00, 07, 02, 05, 04, 03, 06, 01, 12, 15, 14, 13, 08, 11, 10, 09, R1024_6, 8*(R) + 7); \ - R1024(00, 15, 02, 11, 06, 13, 04, 09, 14, 01, 08, 05, 10, 03, 12, 07, R1024_7, 8*(R) + 8); \ - I1024(2*(R)+1); - - R1024_8_rounds(0); + R1024(00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, R1024_0, 8*(R) + 1); \ + R1024(00, 09, 02, 13, 06, 11, 04, 15, 10, 07, 12, 03, 14, 05, 08, 01, R1024_1, 8*(R) + 2); \ + R1024(00, 07, 02, 05, 04, 03, 06, 01, 12, 15, 14, 13, 08, 11, 10, 09, R1024_2, 8*(R) + 3); \ + R1024(00, 15, 02, 11, 06, 13, 04, 09, 14, 01, 08, 05, 10, 03, 12, 07, R1024_3, 8*(R) + 4); \ + I1024(2*(R)); \ + R1024(00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, R1024_4, 8*(R) + 5); \ + R1024(00, 09, 02, 13, 06, 11, 04, 15, 10, 07, 12, 03, 14, 05, 08, 01, R1024_5, 8*(R) + 6); \ + R1024(00, 07, 02, 05, 04, 03, 06, 01, 12, 15, 14, 13, 08, 11, 10, 09, R1024_6, 8*(R) + 7); \ + R1024(00, 15, 02, 11, 06, 13, 04, 09, 14, 01, 08, 05, 10, 03, 12, 07, R1024_7, 8*(R) + 8); \ + I1024(2*(R)+1); + + R1024_8_rounds(0); #define R1024_Unroll_R(NN) ((SKEIN_UNROLL_1024 == 0 && SKEIN1024_ROUNDS_TOTAL/8 > (NN)) || (SKEIN_UNROLL_1024 > (NN))) - #if R1024_Unroll_R(1) - R1024_8_rounds(1); - #endif - #if R1024_Unroll_R(2) - R1024_8_rounds(2); - #endif - #if R1024_Unroll_R(3) - R1024_8_rounds(3); - #endif - #if R1024_Unroll_R(4) - R1024_8_rounds(4); - #endif - #if R1024_Unroll_R(5) - R1024_8_rounds(5); - #endif - #if R1024_Unroll_R(6) - R1024_8_rounds(6); - #endif - #if R1024_Unroll_R(7) - R1024_8_rounds(7); - #endif - #if R1024_Unroll_R(8) - R1024_8_rounds(8); - #endif - #if R1024_Unroll_R(9) - R1024_8_rounds(9); - #endif - #if R1024_Unroll_R(10) - R1024_8_rounds(10); - #endif - #if R1024_Unroll_R(11) - R1024_8_rounds(11); - #endif - #if R1024_Unroll_R(12) - R1024_8_rounds(12); - #endif - #if R1024_Unroll_R(13) - R1024_8_rounds(13); - #endif - #if R1024_Unroll_R(14) - R1024_8_rounds(14); - #endif - #if (SKEIN_UNROLL_1024 > 14) + #if R1024_Unroll_R(1) + R1024_8_rounds(1); + #endif + #if R1024_Unroll_R(2) + R1024_8_rounds(2); + #endif + #if R1024_Unroll_R(3) + R1024_8_rounds(3); + #endif + #if R1024_Unroll_R(4) + R1024_8_rounds(4); + #endif + #if R1024_Unroll_R(5) + R1024_8_rounds(5); + #endif + #if R1024_Unroll_R(6) + R1024_8_rounds(6); + #endif + #if R1024_Unroll_R(7) + R1024_8_rounds(7); + #endif + #if R1024_Unroll_R(8) + R1024_8_rounds(8); + #endif + #if R1024_Unroll_R(9) + R1024_8_rounds(9); + #endif + #if R1024_Unroll_R(10) + R1024_8_rounds(10); + #endif + #if R1024_Unroll_R(11) + R1024_8_rounds(11); + #endif + #if R1024_Unroll_R(12) + R1024_8_rounds(12); + #endif + #if R1024_Unroll_R(13) + R1024_8_rounds(13); + #endif + #if R1024_Unroll_R(14) + R1024_8_rounds(14); + #endif +#if (SKEIN_UNROLL_1024 > 14) #error "need more unrolling in Skein_1024_Process_Block" #endif - } - /* do the final "feedforward" xor, update context chaining vars */ - - ctx->X[0] = X00 ^ w[0]; - ctx->X[1] = X01 ^ w[1]; - ctx->X[2] = X02 ^ w[2]; - ctx->X[3] = X03 ^ w[3]; - ctx->X[4] = X04 ^ w[4]; - ctx->X[5] = X05 ^ w[5]; - ctx->X[6] = X06 ^ w[6]; - ctx->X[7] = X07 ^ w[7]; - ctx->X[8] = X08 ^ w[8]; - ctx->X[9] = X09 ^ w[9]; - ctx->X[10] = X10 ^ w[10]; - ctx->X[11] = X11 ^ w[11]; - ctx->X[12] = X12 ^ w[12]; - ctx->X[13] = X13 ^ w[13]; - ctx->X[14] = X14 ^ w[14]; - ctx->X[15] = X15 ^ w[15]; - - Skein_Show_Round(BLK_BITS, &ctx->h, SKEIN_RND_FEED_FWD, ctx->X); - - ts[1] &= ~SKEIN_T1_FLAG_FIRST; - blkPtr += SKEIN1024_BLOCK_BYTES; - } - while (--blkCnt); - ctx->h.T[0] = ts[0]; - ctx->h.T[1] = ts[1]; - } + } + /* do the final "feedforward" xor, update context chaining vars */ + + ctx->X[0] = X00 ^ w[0]; + ctx->X[1] = X01 ^ w[1]; + ctx->X[2] = X02 ^ w[2]; + ctx->X[3] = X03 ^ w[3]; + ctx->X[4] = X04 ^ w[4]; + ctx->X[5] = X05 ^ w[5]; + ctx->X[6] = X06 ^ w[6]; + ctx->X[7] = X07 ^ w[7]; + ctx->X[8] = X08 ^ w[8]; + ctx->X[9] = X09 ^ w[9]; + ctx->X[10] = X10 ^ w[10]; + ctx->X[11] = X11 ^ w[11]; + ctx->X[12] = X12 ^ w[12]; + ctx->X[13] = X13 ^ w[13]; + ctx->X[14] = X14 ^ w[14]; + ctx->X[15] = X15 ^ w[15]; + + Skein_Show_Round(BLK_BITS, &ctx->h, SKEIN_RND_FEED_FWD, ctx->X); + + ts[1] &= ~SKEIN_T1_FLAG_FIRST; + blkPtr += SKEIN1024_BLOCK_BYTES; + } + while (--blkCnt); + ctx->h.T[0] = ts[0]; + ctx->h.T[1] = ts[1]; +} #if defined(SKEIN_CODE_SIZE) || defined(SKEIN_PERF) size_t Skein1024_Process_Block_CodeSize(void) - { - return ((u8 *) Skein1024_Process_Block_CodeSize) - - ((u8 *) Skein1024_Process_Block); - } +{ + return ((u8 *) Skein1024_Process_Block_CodeSize) - + ((u8 *) Skein1024_Process_Block); +} unsigned int Skein1024_Unroll_Cnt(void) - { - return SKEIN_UNROLL_1024; - } +{ + return SKEIN_UNROLL_1024; +} #endif #endif |