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1024 lines
24 KiB
1024 lines
24 KiB
/* $Id: echo.c 227 2010-06-16 17:28:38Z tp $ */ |
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/* |
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* ECHO implementation. |
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* |
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* ==========================(LICENSE BEGIN)============================ |
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* |
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* Copyright (c) 2007-2010 Projet RNRT SAPHIR |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining |
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* a copy of this software and associated documentation files (the |
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* "Software"), to deal in the Software without restriction, including |
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* without limitation the rights to use, copy, modify, merge, publish, |
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* distribute, sublicense, and/or sell copies of the Software, and to |
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* permit persons to whom the Software is furnished to do so, subject to |
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* the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be |
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* included in all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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* |
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* ===========================(LICENSE END)============================= |
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* |
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* @author Thomas Pornin <thomas.pornin@cryptolog.com> |
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*/ |
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#include <stddef.h> |
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#include <string.h> |
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#include <limits.h> |
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#include "sph_echo.h" |
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#if SPH_SMALL_FOOTPRINT && !defined SPH_SMALL_FOOTPRINT_ECHO |
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#define SPH_SMALL_FOOTPRINT_ECHO 1 |
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#endif |
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/* |
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* Some measures tend to show that the 64-bit implementation offers |
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* better performance only on a "64-bit architectures", those which have |
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* actual 64-bit registers. |
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*/ |
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#if !defined SPH_ECHO_64 && SPH_64_TRUE |
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#define SPH_ECHO_64 1 |
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#endif |
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/* |
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* We can use a 64-bit implementation only if a 64-bit type is available. |
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*/ |
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#if !SPH_64 |
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#undef SPH_ECHO_64 |
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#endif |
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#ifdef _MSC_VER |
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#pragma warning (disable: 4146) |
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#endif |
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#define T32 SPH_T32 |
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#define C32 SPH_C32 |
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#if SPH_64 |
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#define C64 SPH_C64 |
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#endif |
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#define AES_BIG_ENDIAN 0 |
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#include "aes_helper.c" |
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#if SPH_ECHO_64 |
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#define DECL_STATE_SMALL \ |
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sph_u64 W[16][2]; |
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#define DECL_STATE_BIG \ |
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sph_u64 W[16][2]; |
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#define INPUT_BLOCK_SMALL(sc) do { \ |
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unsigned u; \ |
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memcpy(W, sc->u.Vb, 8 * sizeof(sph_u64)); \ |
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for (u = 0; u < 12; u ++) { \ |
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W[u + 4][0] = sph_dec64le_aligned( \ |
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sc->buf + 16 * u); \ |
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W[u + 4][1] = sph_dec64le_aligned( \ |
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sc->buf + 16 * u + 8); \ |
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} \ |
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} while (0) |
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#define INPUT_BLOCK_BIG(sc) do { \ |
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unsigned u; \ |
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memcpy(W, sc->u.Vb, 16 * sizeof(sph_u64)); \ |
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for (u = 0; u < 8; u ++) { \ |
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W[u + 8][0] = sph_dec64le_aligned( \ |
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sc->buf + 16 * u); \ |
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W[u + 8][1] = sph_dec64le_aligned( \ |
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sc->buf + 16 * u + 8); \ |
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} \ |
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} while (0) |
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#if SPH_SMALL_FOOTPRINT_ECHO |
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static void |
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aes_2rounds_all(sph_u64 W[16][2], |
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sph_u32 *pK0, sph_u32 *pK1, sph_u32 *pK2, sph_u32 *pK3) |
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{ |
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int n; |
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sph_u32 K0 = *pK0; |
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sph_u32 K1 = *pK1; |
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sph_u32 K2 = *pK2; |
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sph_u32 K3 = *pK3; |
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for (n = 0; n < 16; n ++) { |
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sph_u64 Wl = W[n][0]; |
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sph_u64 Wh = W[n][1]; |
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sph_u32 X0 = (sph_u32)Wl; |
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sph_u32 X1 = (sph_u32)(Wl >> 32); |
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sph_u32 X2 = (sph_u32)Wh; |
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sph_u32 X3 = (sph_u32)(Wh >> 32); |
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sph_u32 Y0, Y1, Y2, Y3; \ |
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AES_ROUND_LE(X0, X1, X2, X3, K0, K1, K2, K3, Y0, Y1, Y2, Y3); |
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AES_ROUND_NOKEY_LE(Y0, Y1, Y2, Y3, X0, X1, X2, X3); |
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W[n][0] = (sph_u64)X0 | ((sph_u64)X1 << 32); |
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W[n][1] = (sph_u64)X2 | ((sph_u64)X3 << 32); |
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if ((K0 = T32(K0 + 1)) == 0) { |
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if ((K1 = T32(K1 + 1)) == 0) |
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if ((K2 = T32(K2 + 1)) == 0) |
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K3 = T32(K3 + 1); |
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} |
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} |
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*pK0 = K0; |
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*pK1 = K1; |
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*pK2 = K2; |
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*pK3 = K3; |
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} |
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#define BIG_SUB_WORDS do { \ |
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aes_2rounds_all(W, &K0, &K1, &K2, &K3); \ |
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} while (0) |
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#else |
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#define AES_2ROUNDS(X) do { \ |
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sph_u32 X0 = (sph_u32)(X[0]); \ |
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sph_u32 X1 = (sph_u32)(X[0] >> 32); \ |
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sph_u32 X2 = (sph_u32)(X[1]); \ |
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sph_u32 X3 = (sph_u32)(X[1] >> 32); \ |
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sph_u32 Y0, Y1, Y2, Y3; \ |
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AES_ROUND_LE(X0, X1, X2, X3, K0, K1, K2, K3, Y0, Y1, Y2, Y3); \ |
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AES_ROUND_NOKEY_LE(Y0, Y1, Y2, Y3, X0, X1, X2, X3); \ |
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X[0] = (sph_u64)X0 | ((sph_u64)X1 << 32); \ |
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X[1] = (sph_u64)X2 | ((sph_u64)X3 << 32); \ |
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if ((K0 = T32(K0 + 1)) == 0) { \ |
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if ((K1 = T32(K1 + 1)) == 0) \ |
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if ((K2 = T32(K2 + 1)) == 0) \ |
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K3 = T32(K3 + 1); \ |
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} \ |
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} while (0) |
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#define BIG_SUB_WORDS do { \ |
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AES_2ROUNDS(W[ 0]); \ |
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AES_2ROUNDS(W[ 1]); \ |
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AES_2ROUNDS(W[ 2]); \ |
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AES_2ROUNDS(W[ 3]); \ |
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AES_2ROUNDS(W[ 4]); \ |
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AES_2ROUNDS(W[ 5]); \ |
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AES_2ROUNDS(W[ 6]); \ |
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AES_2ROUNDS(W[ 7]); \ |
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AES_2ROUNDS(W[ 8]); \ |
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AES_2ROUNDS(W[ 9]); \ |
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AES_2ROUNDS(W[10]); \ |
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AES_2ROUNDS(W[11]); \ |
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AES_2ROUNDS(W[12]); \ |
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AES_2ROUNDS(W[13]); \ |
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AES_2ROUNDS(W[14]); \ |
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AES_2ROUNDS(W[15]); \ |
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} while (0) |
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#endif |
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#define SHIFT_ROW1(a, b, c, d) do { \ |
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sph_u64 tmp; \ |
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tmp = W[a][0]; \ |
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W[a][0] = W[b][0]; \ |
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W[b][0] = W[c][0]; \ |
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W[c][0] = W[d][0]; \ |
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W[d][0] = tmp; \ |
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tmp = W[a][1]; \ |
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W[a][1] = W[b][1]; \ |
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W[b][1] = W[c][1]; \ |
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W[c][1] = W[d][1]; \ |
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W[d][1] = tmp; \ |
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} while (0) |
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#define SHIFT_ROW2(a, b, c, d) do { \ |
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sph_u64 tmp; \ |
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tmp = W[a][0]; \ |
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W[a][0] = W[c][0]; \ |
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W[c][0] = tmp; \ |
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tmp = W[b][0]; \ |
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W[b][0] = W[d][0]; \ |
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W[d][0] = tmp; \ |
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tmp = W[a][1]; \ |
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W[a][1] = W[c][1]; \ |
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W[c][1] = tmp; \ |
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tmp = W[b][1]; \ |
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W[b][1] = W[d][1]; \ |
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W[d][1] = tmp; \ |
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} while (0) |
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#define SHIFT_ROW3(a, b, c, d) SHIFT_ROW1(d, c, b, a) |
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#define BIG_SHIFT_ROWS do { \ |
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SHIFT_ROW1(1, 5, 9, 13); \ |
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SHIFT_ROW2(2, 6, 10, 14); \ |
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SHIFT_ROW3(3, 7, 11, 15); \ |
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} while (0) |
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#if SPH_SMALL_FOOTPRINT_ECHO |
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static void |
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mix_column(sph_u64 W[16][2], int ia, int ib, int ic, int id) |
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{ |
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int n; |
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for (n = 0; n < 2; n ++) { |
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sph_u64 a = W[ia][n]; |
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sph_u64 b = W[ib][n]; |
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sph_u64 c = W[ic][n]; |
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sph_u64 d = W[id][n]; |
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sph_u64 ab = a ^ b; |
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sph_u64 bc = b ^ c; |
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sph_u64 cd = c ^ d; |
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sph_u64 abx = ((ab & C64(0x8080808080808080)) >> 7) * 27U |
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^ ((ab & C64(0x7F7F7F7F7F7F7F7F)) << 1); |
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sph_u64 bcx = ((bc & C64(0x8080808080808080)) >> 7) * 27U |
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^ ((bc & C64(0x7F7F7F7F7F7F7F7F)) << 1); |
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sph_u64 cdx = ((cd & C64(0x8080808080808080)) >> 7) * 27U |
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^ ((cd & C64(0x7F7F7F7F7F7F7F7F)) << 1); |
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W[ia][n] = abx ^ bc ^ d; |
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W[ib][n] = bcx ^ a ^ cd; |
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W[ic][n] = cdx ^ ab ^ d; |
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W[id][n] = abx ^ bcx ^ cdx ^ ab ^ c; |
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} |
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} |
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#define MIX_COLUMN(a, b, c, d) mix_column(W, a, b, c, d) |
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#else |
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#define MIX_COLUMN1(ia, ib, ic, id, n) do { \ |
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sph_u64 a = W[ia][n]; \ |
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sph_u64 b = W[ib][n]; \ |
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sph_u64 c = W[ic][n]; \ |
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sph_u64 d = W[id][n]; \ |
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sph_u64 ab = a ^ b; \ |
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sph_u64 bc = b ^ c; \ |
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sph_u64 cd = c ^ d; \ |
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sph_u64 abx = ((ab & C64(0x8080808080808080)) >> 7) * 27U \ |
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^ ((ab & C64(0x7F7F7F7F7F7F7F7F)) << 1); \ |
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sph_u64 bcx = ((bc & C64(0x8080808080808080)) >> 7) * 27U \ |
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^ ((bc & C64(0x7F7F7F7F7F7F7F7F)) << 1); \ |
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sph_u64 cdx = ((cd & C64(0x8080808080808080)) >> 7) * 27U \ |
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^ ((cd & C64(0x7F7F7F7F7F7F7F7F)) << 1); \ |
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W[ia][n] = abx ^ bc ^ d; \ |
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W[ib][n] = bcx ^ a ^ cd; \ |
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W[ic][n] = cdx ^ ab ^ d; \ |
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W[id][n] = abx ^ bcx ^ cdx ^ ab ^ c; \ |
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} while (0) |
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#define MIX_COLUMN(a, b, c, d) do { \ |
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MIX_COLUMN1(a, b, c, d, 0); \ |
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MIX_COLUMN1(a, b, c, d, 1); \ |
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} while (0) |
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#endif |
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#define BIG_MIX_COLUMNS do { \ |
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MIX_COLUMN(0, 1, 2, 3); \ |
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MIX_COLUMN(4, 5, 6, 7); \ |
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MIX_COLUMN(8, 9, 10, 11); \ |
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MIX_COLUMN(12, 13, 14, 15); \ |
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} while (0) |
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#define BIG_ROUND do { \ |
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BIG_SUB_WORDS; \ |
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BIG_SHIFT_ROWS; \ |
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BIG_MIX_COLUMNS; \ |
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} while (0) |
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#define FINAL_SMALL do { \ |
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unsigned u; \ |
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sph_u64 *VV = &sc->u.Vb[0][0]; \ |
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sph_u64 *WW = &W[0][0]; \ |
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for (u = 0; u < 8; u ++) { \ |
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VV[u] ^= sph_dec64le_aligned(sc->buf + (u * 8)) \ |
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^ sph_dec64le_aligned(sc->buf + (u * 8) + 64) \ |
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^ sph_dec64le_aligned(sc->buf + (u * 8) + 128) \ |
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^ WW[u] ^ WW[u + 8] \ |
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^ WW[u + 16] ^ WW[u + 24]; \ |
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} \ |
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} while (0) |
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#define FINAL_BIG do { \ |
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unsigned u; \ |
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sph_u64 *VV = &sc->u.Vb[0][0]; \ |
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sph_u64 *WW = &W[0][0]; \ |
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for (u = 0; u < 16; u ++) { \ |
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VV[u] ^= sph_dec64le_aligned(sc->buf + (u * 8)) \ |
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^ WW[u] ^ WW[u + 16]; \ |
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} \ |
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} while (0) |
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#define COMPRESS_SMALL(sc) do { \ |
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sph_u32 K0 = sc->C0; \ |
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sph_u32 K1 = sc->C1; \ |
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sph_u32 K2 = sc->C2; \ |
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sph_u32 K3 = sc->C3; \ |
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unsigned u; \ |
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INPUT_BLOCK_SMALL(sc); \ |
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for (u = 0; u < 8; u ++) { \ |
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BIG_ROUND; \ |
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} \ |
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FINAL_SMALL; \ |
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} while (0) |
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#define COMPRESS_BIG(sc) do { \ |
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sph_u32 K0 = sc->C0; \ |
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sph_u32 K1 = sc->C1; \ |
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sph_u32 K2 = sc->C2; \ |
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sph_u32 K3 = sc->C3; \ |
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unsigned u; \ |
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INPUT_BLOCK_BIG(sc); \ |
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for (u = 0; u < 10; u ++) { \ |
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BIG_ROUND; \ |
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} \ |
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FINAL_BIG; \ |
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} while (0) |
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#else |
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#define DECL_STATE_SMALL \ |
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sph_u32 W[16][4]; |
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#define DECL_STATE_BIG \ |
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sph_u32 W[16][4]; |
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#define INPUT_BLOCK_SMALL(sc) do { \ |
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unsigned u; \ |
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memcpy(W, sc->u.Vs, 16 * sizeof(sph_u32)); \ |
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for (u = 0; u < 12; u ++) { \ |
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W[u + 4][0] = sph_dec32le_aligned( \ |
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sc->buf + 16 * u); \ |
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W[u + 4][1] = sph_dec32le_aligned( \ |
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sc->buf + 16 * u + 4); \ |
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W[u + 4][2] = sph_dec32le_aligned( \ |
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sc->buf + 16 * u + 8); \ |
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W[u + 4][3] = sph_dec32le_aligned( \ |
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sc->buf + 16 * u + 12); \ |
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} \ |
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} while (0) |
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#define INPUT_BLOCK_BIG(sc) do { \ |
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unsigned u; \ |
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memcpy(W, sc->u.Vs, 32 * sizeof(sph_u32)); \ |
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for (u = 0; u < 8; u ++) { \ |
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W[u + 8][0] = sph_dec32le_aligned( \ |
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sc->buf + 16 * u); \ |
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W[u + 8][1] = sph_dec32le_aligned( \ |
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sc->buf + 16 * u + 4); \ |
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W[u + 8][2] = sph_dec32le_aligned( \ |
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sc->buf + 16 * u + 8); \ |
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W[u + 8][3] = sph_dec32le_aligned( \ |
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sc->buf + 16 * u + 12); \ |
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} \ |
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} while (0) |
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#if SPH_SMALL_FOOTPRINT_ECHO |
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static void |
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aes_2rounds_all(sph_u32 W[16][4], |
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sph_u32 *pK0, sph_u32 *pK1, sph_u32 *pK2, sph_u32 *pK3) |
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{ |
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int n; |
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sph_u32 K0 = *pK0; |
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sph_u32 K1 = *pK1; |
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sph_u32 K2 = *pK2; |
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sph_u32 K3 = *pK3; |
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for (n = 0; n < 16; n ++) { |
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sph_u32 *X = W[n]; |
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sph_u32 Y0, Y1, Y2, Y3; |
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AES_ROUND_LE(X[0], X[1], X[2], X[3], |
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K0, K1, K2, K3, Y0, Y1, Y2, Y3); |
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AES_ROUND_NOKEY_LE(Y0, Y1, Y2, Y3, X[0], X[1], X[2], X[3]); |
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if ((K0 = T32(K0 + 1)) == 0) { |
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if ((K1 = T32(K1 + 1)) == 0) |
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if ((K2 = T32(K2 + 1)) == 0) |
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K3 = T32(K3 + 1); |
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} |
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} |
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*pK0 = K0; |
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*pK1 = K1; |
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*pK2 = K2; |
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*pK3 = K3; |
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} |
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#define BIG_SUB_WORDS do { \ |
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aes_2rounds_all(W, &K0, &K1, &K2, &K3); \ |
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} while (0) |
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#else |
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#define AES_2ROUNDS(X) do { \ |
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sph_u32 Y0, Y1, Y2, Y3; \ |
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AES_ROUND_LE(X[0], X[1], X[2], X[3], \ |
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K0, K1, K2, K3, Y0, Y1, Y2, Y3); \ |
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AES_ROUND_NOKEY_LE(Y0, Y1, Y2, Y3, X[0], X[1], X[2], X[3]); \ |
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if ((K0 = T32(K0 + 1)) == 0) { \ |
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if ((K1 = T32(K1 + 1)) == 0) \ |
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if ((K2 = T32(K2 + 1)) == 0) \ |
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K3 = T32(K3 + 1); \ |
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} \ |
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} while (0) |
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#define BIG_SUB_WORDS do { \ |
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AES_2ROUNDS(W[ 0]); \ |
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AES_2ROUNDS(W[ 1]); \ |
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AES_2ROUNDS(W[ 2]); \ |
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AES_2ROUNDS(W[ 3]); \ |
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AES_2ROUNDS(W[ 4]); \ |
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AES_2ROUNDS(W[ 5]); \ |
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AES_2ROUNDS(W[ 6]); \ |
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AES_2ROUNDS(W[ 7]); \ |
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AES_2ROUNDS(W[ 8]); \ |
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AES_2ROUNDS(W[ 9]); \ |
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AES_2ROUNDS(W[10]); \ |
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AES_2ROUNDS(W[11]); \ |
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AES_2ROUNDS(W[12]); \ |
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AES_2ROUNDS(W[13]); \ |
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AES_2ROUNDS(W[14]); \ |
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AES_2ROUNDS(W[15]); \ |
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} while (0) |
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#endif |
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#define SHIFT_ROW1(a, b, c, d) do { \ |
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sph_u32 tmp; \ |
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tmp = W[a][0]; \ |
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W[a][0] = W[b][0]; \ |
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W[b][0] = W[c][0]; \ |
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W[c][0] = W[d][0]; \ |
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W[d][0] = tmp; \ |
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tmp = W[a][1]; \ |
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W[a][1] = W[b][1]; \ |
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W[b][1] = W[c][1]; \ |
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W[c][1] = W[d][1]; \ |
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W[d][1] = tmp; \ |
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tmp = W[a][2]; \ |
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W[a][2] = W[b][2]; \ |
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W[b][2] = W[c][2]; \ |
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W[c][2] = W[d][2]; \ |
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W[d][2] = tmp; \ |
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tmp = W[a][3]; \ |
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W[a][3] = W[b][3]; \ |
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W[b][3] = W[c][3]; \ |
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W[c][3] = W[d][3]; \ |
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W[d][3] = tmp; \ |
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} while (0) |
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#define SHIFT_ROW2(a, b, c, d) do { \ |
|
sph_u32 tmp; \ |
|
tmp = W[a][0]; \ |
|
W[a][0] = W[c][0]; \ |
|
W[c][0] = tmp; \ |
|
tmp = W[b][0]; \ |
|
W[b][0] = W[d][0]; \ |
|
W[d][0] = tmp; \ |
|
tmp = W[a][1]; \ |
|
W[a][1] = W[c][1]; \ |
|
W[c][1] = tmp; \ |
|
tmp = W[b][1]; \ |
|
W[b][1] = W[d][1]; \ |
|
W[d][1] = tmp; \ |
|
tmp = W[a][2]; \ |
|
W[a][2] = W[c][2]; \ |
|
W[c][2] = tmp; \ |
|
tmp = W[b][2]; \ |
|
W[b][2] = W[d][2]; \ |
|
W[d][2] = tmp; \ |
|
tmp = W[a][3]; \ |
|
W[a][3] = W[c][3]; \ |
|
W[c][3] = tmp; \ |
|
tmp = W[b][3]; \ |
|
W[b][3] = W[d][3]; \ |
|
W[d][3] = tmp; \ |
|
} while (0) |
|
|
|
#define SHIFT_ROW3(a, b, c, d) SHIFT_ROW1(d, c, b, a) |
|
|
|
#define BIG_SHIFT_ROWS do { \ |
|
SHIFT_ROW1(1, 5, 9, 13); \ |
|
SHIFT_ROW2(2, 6, 10, 14); \ |
|
SHIFT_ROW3(3, 7, 11, 15); \ |
|
} while (0) |
|
|
|
#if SPH_SMALL_FOOTPRINT_ECHO |
|
|
|
static void |
|
mix_column(sph_u32 W[16][4], int ia, int ib, int ic, int id) |
|
{ |
|
int n; |
|
|
|
for (n = 0; n < 4; n ++) { |
|
sph_u32 a = W[ia][n]; |
|
sph_u32 b = W[ib][n]; |
|
sph_u32 c = W[ic][n]; |
|
sph_u32 d = W[id][n]; |
|
sph_u32 ab = a ^ b; |
|
sph_u32 bc = b ^ c; |
|
sph_u32 cd = c ^ d; |
|
sph_u32 abx = ((ab & C32(0x80808080)) >> 7) * 27U |
|
^ ((ab & C32(0x7F7F7F7F)) << 1); |
|
sph_u32 bcx = ((bc & C32(0x80808080)) >> 7) * 27U |
|
^ ((bc & C32(0x7F7F7F7F)) << 1); |
|
sph_u32 cdx = ((cd & C32(0x80808080)) >> 7) * 27U |
|
^ ((cd & C32(0x7F7F7F7F)) << 1); |
|
W[ia][n] = abx ^ bc ^ d; |
|
W[ib][n] = bcx ^ a ^ cd; |
|
W[ic][n] = cdx ^ ab ^ d; |
|
W[id][n] = abx ^ bcx ^ cdx ^ ab ^ c; |
|
} |
|
} |
|
|
|
#define MIX_COLUMN(a, b, c, d) mix_column(W, a, b, c, d) |
|
|
|
#else |
|
|
|
#define MIX_COLUMN1(ia, ib, ic, id, n) do { \ |
|
sph_u32 a = W[ia][n]; \ |
|
sph_u32 b = W[ib][n]; \ |
|
sph_u32 c = W[ic][n]; \ |
|
sph_u32 d = W[id][n]; \ |
|
sph_u32 ab = a ^ b; \ |
|
sph_u32 bc = b ^ c; \ |
|
sph_u32 cd = c ^ d; \ |
|
sph_u32 abx = ((ab & C32(0x80808080)) >> 7) * 27U \ |
|
^ ((ab & C32(0x7F7F7F7F)) << 1); \ |
|
sph_u32 bcx = ((bc & C32(0x80808080)) >> 7) * 27U \ |
|
^ ((bc & C32(0x7F7F7F7F)) << 1); \ |
|
sph_u32 cdx = ((cd & C32(0x80808080)) >> 7) * 27U \ |
|
^ ((cd & C32(0x7F7F7F7F)) << 1); \ |
|
W[ia][n] = abx ^ bc ^ d; \ |
|
W[ib][n] = bcx ^ a ^ cd; \ |
|
W[ic][n] = cdx ^ ab ^ d; \ |
|
W[id][n] = abx ^ bcx ^ cdx ^ ab ^ c; \ |
|
} while (0) |
|
|
|
#define MIX_COLUMN(a, b, c, d) do { \ |
|
MIX_COLUMN1(a, b, c, d, 0); \ |
|
MIX_COLUMN1(a, b, c, d, 1); \ |
|
MIX_COLUMN1(a, b, c, d, 2); \ |
|
MIX_COLUMN1(a, b, c, d, 3); \ |
|
} while (0) |
|
|
|
#endif |
|
|
|
#define BIG_MIX_COLUMNS do { \ |
|
MIX_COLUMN(0, 1, 2, 3); \ |
|
MIX_COLUMN(4, 5, 6, 7); \ |
|
MIX_COLUMN(8, 9, 10, 11); \ |
|
MIX_COLUMN(12, 13, 14, 15); \ |
|
} while (0) |
|
|
|
#define BIG_ROUND do { \ |
|
BIG_SUB_WORDS; \ |
|
BIG_SHIFT_ROWS; \ |
|
BIG_MIX_COLUMNS; \ |
|
} while (0) |
|
|
|
#define FINAL_SMALL do { \ |
|
unsigned u; \ |
|
sph_u32 *VV = &sc->u.Vs[0][0]; \ |
|
sph_u32 *WW = &W[0][0]; \ |
|
for (u = 0; u < 16; u ++) { \ |
|
VV[u] ^= sph_dec32le_aligned(sc->buf + (u * 4)) \ |
|
^ sph_dec32le_aligned(sc->buf + (u * 4) + 64) \ |
|
^ sph_dec32le_aligned(sc->buf + (u * 4) + 128) \ |
|
^ WW[u] ^ WW[u + 16] \ |
|
^ WW[u + 32] ^ WW[u + 48]; \ |
|
} \ |
|
} while (0) |
|
|
|
#define FINAL_BIG do { \ |
|
unsigned u; \ |
|
sph_u32 *VV = &sc->u.Vs[0][0]; \ |
|
sph_u32 *WW = &W[0][0]; \ |
|
for (u = 0; u < 32; u ++) { \ |
|
VV[u] ^= sph_dec32le_aligned(sc->buf + (u * 4)) \ |
|
^ WW[u] ^ WW[u + 32]; \ |
|
} \ |
|
} while (0) |
|
|
|
#define COMPRESS_SMALL(sc) do { \ |
|
sph_u32 K0 = sc->C0; \ |
|
sph_u32 K1 = sc->C1; \ |
|
sph_u32 K2 = sc->C2; \ |
|
sph_u32 K3 = sc->C3; \ |
|
unsigned u; \ |
|
INPUT_BLOCK_SMALL(sc); \ |
|
for (u = 0; u < 8; u ++) { \ |
|
BIG_ROUND; \ |
|
} \ |
|
FINAL_SMALL; \ |
|
} while (0) |
|
|
|
#define COMPRESS_BIG(sc) do { \ |
|
sph_u32 K0 = sc->C0; \ |
|
sph_u32 K1 = sc->C1; \ |
|
sph_u32 K2 = sc->C2; \ |
|
sph_u32 K3 = sc->C3; \ |
|
unsigned u; \ |
|
INPUT_BLOCK_BIG(sc); \ |
|
for (u = 0; u < 10; u ++) { \ |
|
BIG_ROUND; \ |
|
} \ |
|
FINAL_BIG; \ |
|
} while (0) |
|
|
|
#endif |
|
|
|
#define INCR_COUNTER(sc, val) do { \ |
|
sc->C0 = T32(sc->C0 + (sph_u32)(val)); \ |
|
if (sc->C0 < (sph_u32)(val)) { \ |
|
if ((sc->C1 = T32(sc->C1 + 1)) == 0) \ |
|
if ((sc->C2 = T32(sc->C2 + 1)) == 0) \ |
|
sc->C3 = T32(sc->C3 + 1); \ |
|
} \ |
|
} while (0) |
|
|
|
static void |
|
echo_small_init(sph_echo_small_context *sc, unsigned out_len) |
|
{ |
|
#if SPH_ECHO_64 |
|
sc->u.Vb[0][0] = (sph_u64)out_len; |
|
sc->u.Vb[0][1] = 0; |
|
sc->u.Vb[1][0] = (sph_u64)out_len; |
|
sc->u.Vb[1][1] = 0; |
|
sc->u.Vb[2][0] = (sph_u64)out_len; |
|
sc->u.Vb[2][1] = 0; |
|
sc->u.Vb[3][0] = (sph_u64)out_len; |
|
sc->u.Vb[3][1] = 0; |
|
#else |
|
sc->u.Vs[0][0] = (sph_u32)out_len; |
|
sc->u.Vs[0][1] = sc->u.Vs[0][2] = sc->u.Vs[0][3] = 0; |
|
sc->u.Vs[1][0] = (sph_u32)out_len; |
|
sc->u.Vs[1][1] = sc->u.Vs[1][2] = sc->u.Vs[1][3] = 0; |
|
sc->u.Vs[2][0] = (sph_u32)out_len; |
|
sc->u.Vs[2][1] = sc->u.Vs[2][2] = sc->u.Vs[2][3] = 0; |
|
sc->u.Vs[3][0] = (sph_u32)out_len; |
|
sc->u.Vs[3][1] = sc->u.Vs[3][2] = sc->u.Vs[3][3] = 0; |
|
#endif |
|
sc->ptr = 0; |
|
sc->C0 = sc->C1 = sc->C2 = sc->C3 = 0; |
|
} |
|
|
|
static void |
|
echo_big_init(sph_echo_big_context *sc, unsigned out_len) |
|
{ |
|
#if SPH_ECHO_64 |
|
sc->u.Vb[0][0] = (sph_u64)out_len; |
|
sc->u.Vb[0][1] = 0; |
|
sc->u.Vb[1][0] = (sph_u64)out_len; |
|
sc->u.Vb[1][1] = 0; |
|
sc->u.Vb[2][0] = (sph_u64)out_len; |
|
sc->u.Vb[2][1] = 0; |
|
sc->u.Vb[3][0] = (sph_u64)out_len; |
|
sc->u.Vb[3][1] = 0; |
|
sc->u.Vb[4][0] = (sph_u64)out_len; |
|
sc->u.Vb[4][1] = 0; |
|
sc->u.Vb[5][0] = (sph_u64)out_len; |
|
sc->u.Vb[5][1] = 0; |
|
sc->u.Vb[6][0] = (sph_u64)out_len; |
|
sc->u.Vb[6][1] = 0; |
|
sc->u.Vb[7][0] = (sph_u64)out_len; |
|
sc->u.Vb[7][1] = 0; |
|
#else |
|
sc->u.Vs[0][0] = (sph_u32)out_len; |
|
sc->u.Vs[0][1] = sc->u.Vs[0][2] = sc->u.Vs[0][3] = 0; |
|
sc->u.Vs[1][0] = (sph_u32)out_len; |
|
sc->u.Vs[1][1] = sc->u.Vs[1][2] = sc->u.Vs[1][3] = 0; |
|
sc->u.Vs[2][0] = (sph_u32)out_len; |
|
sc->u.Vs[2][1] = sc->u.Vs[2][2] = sc->u.Vs[2][3] = 0; |
|
sc->u.Vs[3][0] = (sph_u32)out_len; |
|
sc->u.Vs[3][1] = sc->u.Vs[3][2] = sc->u.Vs[3][3] = 0; |
|
sc->u.Vs[4][0] = (sph_u32)out_len; |
|
sc->u.Vs[4][1] = sc->u.Vs[4][2] = sc->u.Vs[4][3] = 0; |
|
sc->u.Vs[5][0] = (sph_u32)out_len; |
|
sc->u.Vs[5][1] = sc->u.Vs[5][2] = sc->u.Vs[5][3] = 0; |
|
sc->u.Vs[6][0] = (sph_u32)out_len; |
|
sc->u.Vs[6][1] = sc->u.Vs[6][2] = sc->u.Vs[6][3] = 0; |
|
sc->u.Vs[7][0] = (sph_u32)out_len; |
|
sc->u.Vs[7][1] = sc->u.Vs[7][2] = sc->u.Vs[7][3] = 0; |
|
#endif |
|
sc->ptr = 0; |
|
sc->C0 = sc->C1 = sc->C2 = sc->C3 = 0; |
|
} |
|
|
|
static void |
|
echo_small_compress(sph_echo_small_context *sc) |
|
{ |
|
DECL_STATE_SMALL |
|
|
|
COMPRESS_SMALL(sc); |
|
} |
|
|
|
static void |
|
echo_big_compress(sph_echo_big_context *sc) |
|
{ |
|
DECL_STATE_BIG |
|
|
|
COMPRESS_BIG(sc); |
|
} |
|
|
|
static void |
|
echo_small_core(sph_echo_small_context *sc, |
|
const unsigned char *data, size_t len) |
|
{ |
|
unsigned char *buf; |
|
size_t ptr; |
|
|
|
buf = sc->buf; |
|
ptr = sc->ptr; |
|
if (len < (sizeof sc->buf) - ptr) { |
|
memcpy(buf + ptr, data, len); |
|
ptr += len; |
|
sc->ptr = ptr; |
|
return; |
|
} |
|
|
|
while (len > 0) { |
|
size_t clen; |
|
|
|
clen = (sizeof sc->buf) - ptr; |
|
if (clen > len) |
|
clen = len; |
|
memcpy(buf + ptr, data, clen); |
|
ptr += clen; |
|
data += clen; |
|
len -= clen; |
|
if (ptr == sizeof sc->buf) { |
|
INCR_COUNTER(sc, 1536); |
|
echo_small_compress(sc); |
|
ptr = 0; |
|
} |
|
} |
|
sc->ptr = ptr; |
|
} |
|
|
|
static void |
|
echo_big_core(sph_echo_big_context *sc, |
|
const unsigned char *data, size_t len) |
|
{ |
|
unsigned char *buf; |
|
size_t ptr; |
|
|
|
buf = sc->buf; |
|
ptr = sc->ptr; |
|
if (len < (sizeof sc->buf) - ptr) { |
|
memcpy(buf + ptr, data, len); |
|
ptr += len; |
|
sc->ptr = ptr; |
|
return; |
|
} |
|
|
|
while (len > 0) { |
|
size_t clen; |
|
|
|
clen = (sizeof sc->buf) - ptr; |
|
if (clen > len) |
|
clen = len; |
|
memcpy(buf + ptr, data, clen); |
|
ptr += clen; |
|
data += clen; |
|
len -= clen; |
|
if (ptr == sizeof sc->buf) { |
|
INCR_COUNTER(sc, 1024); |
|
echo_big_compress(sc); |
|
ptr = 0; |
|
} |
|
} |
|
sc->ptr = ptr; |
|
} |
|
|
|
static void |
|
echo_small_close(sph_echo_small_context *sc, unsigned ub, unsigned n, |
|
void *dst, unsigned out_size_w32) |
|
{ |
|
unsigned char *buf; |
|
size_t ptr; |
|
unsigned z; |
|
unsigned elen; |
|
union { |
|
unsigned char tmp[32]; |
|
sph_u32 dummy; |
|
#if SPH_ECHO_64 |
|
sph_u64 dummy2; |
|
#endif |
|
} u; |
|
#if SPH_ECHO_64 |
|
sph_u64 *VV; |
|
#else |
|
sph_u32 *VV; |
|
#endif |
|
unsigned k; |
|
|
|
buf = sc->buf; |
|
ptr = sc->ptr; |
|
elen = ((unsigned)ptr << 3) + n; |
|
INCR_COUNTER(sc, elen); |
|
sph_enc32le_aligned(u.tmp, sc->C0); |
|
sph_enc32le_aligned(u.tmp + 4, sc->C1); |
|
sph_enc32le_aligned(u.tmp + 8, sc->C2); |
|
sph_enc32le_aligned(u.tmp + 12, sc->C3); |
|
/* |
|
* If elen is zero, then this block actually contains no message |
|
* bit, only the first padding bit. |
|
*/ |
|
if (elen == 0) { |
|
sc->C0 = sc->C1 = sc->C2 = sc->C3 = 0; |
|
} |
|
z = 0x80 >> n; |
|
buf[ptr ++] = ((ub & -z) | z) & 0xFF; |
|
memset(buf + ptr, 0, (sizeof sc->buf) - ptr); |
|
if (ptr > ((sizeof sc->buf) - 18)) { |
|
echo_small_compress(sc); |
|
sc->C0 = sc->C1 = sc->C2 = sc->C3 = 0; |
|
memset(buf, 0, sizeof sc->buf); |
|
} |
|
sph_enc16le(buf + (sizeof sc->buf) - 18, out_size_w32 << 5); |
|
memcpy(buf + (sizeof sc->buf) - 16, u.tmp, 16); |
|
echo_small_compress(sc); |
|
#if SPH_ECHO_64 |
|
for (VV = &sc->u.Vb[0][0], k = 0; k < ((out_size_w32 + 1) >> 1); k ++) |
|
sph_enc64le_aligned(u.tmp + (k << 3), VV[k]); |
|
#else |
|
for (VV = &sc->u.Vs[0][0], k = 0; k < out_size_w32; k ++) |
|
sph_enc32le_aligned(u.tmp + (k << 2), VV[k]); |
|
#endif |
|
memcpy(dst, u.tmp, out_size_w32 << 2); |
|
echo_small_init(sc, out_size_w32 << 5); |
|
} |
|
|
|
static void |
|
echo_big_close(sph_echo_big_context *sc, unsigned ub, unsigned n, |
|
void *dst, unsigned out_size_w32) |
|
{ |
|
unsigned char *buf; |
|
size_t ptr; |
|
unsigned z; |
|
unsigned elen; |
|
union { |
|
unsigned char tmp[64]; |
|
sph_u32 dummy; |
|
#if SPH_ECHO_64 |
|
sph_u64 dummy2; |
|
#endif |
|
} u; |
|
#if SPH_ECHO_64 |
|
sph_u64 *VV; |
|
#else |
|
sph_u32 *VV; |
|
#endif |
|
unsigned k; |
|
|
|
buf = sc->buf; |
|
ptr = sc->ptr; |
|
elen = ((unsigned)ptr << 3) + n; |
|
INCR_COUNTER(sc, elen); |
|
sph_enc32le_aligned(u.tmp, sc->C0); |
|
sph_enc32le_aligned(u.tmp + 4, sc->C1); |
|
sph_enc32le_aligned(u.tmp + 8, sc->C2); |
|
sph_enc32le_aligned(u.tmp + 12, sc->C3); |
|
/* |
|
* If elen is zero, then this block actually contains no message |
|
* bit, only the first padding bit. |
|
*/ |
|
if (elen == 0) { |
|
sc->C0 = sc->C1 = sc->C2 = sc->C3 = 0; |
|
} |
|
z = 0x80 >> n; |
|
buf[ptr ++] = ((ub & -z) | z) & 0xFF; |
|
memset(buf + ptr, 0, (sizeof sc->buf) - ptr); |
|
if (ptr > ((sizeof sc->buf) - 18)) { |
|
echo_big_compress(sc); |
|
sc->C0 = sc->C1 = sc->C2 = sc->C3 = 0; |
|
memset(buf, 0, sizeof sc->buf); |
|
} |
|
sph_enc16le(buf + (sizeof sc->buf) - 18, out_size_w32 << 5); |
|
memcpy(buf + (sizeof sc->buf) - 16, u.tmp, 16); |
|
echo_big_compress(sc); |
|
#if SPH_ECHO_64 |
|
for (VV = &sc->u.Vb[0][0], k = 0; k < ((out_size_w32 + 1) >> 1); k ++) |
|
sph_enc64le_aligned(u.tmp + (k << 3), VV[k]); |
|
#else |
|
for (VV = &sc->u.Vs[0][0], k = 0; k < out_size_w32; k ++) |
|
sph_enc32le_aligned(u.tmp + (k << 2), VV[k]); |
|
#endif |
|
memcpy(dst, u.tmp, out_size_w32 << 2); |
|
echo_big_init(sc, out_size_w32 << 5); |
|
} |
|
|
|
/* see sph_echo.h */ |
|
void |
|
sph_echo224_init(void *cc) |
|
{ |
|
echo_small_init((sph_echo_small_context *)cc, 224); |
|
} |
|
|
|
/* see sph_echo.h */ |
|
void |
|
sph_echo224(void *cc, const void *data, size_t len) |
|
{ |
|
echo_small_core((sph_echo_small_context *)cc, (const unsigned char *)data, len); |
|
} |
|
|
|
/* see sph_echo.h */ |
|
void |
|
sph_echo224_close(void *cc, void *dst) |
|
{ |
|
echo_small_close((sph_echo_small_context *)cc, 0, 0, dst, 7); |
|
} |
|
|
|
/* see sph_echo.h */ |
|
void |
|
sph_echo224_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst) |
|
{ |
|
echo_small_close((sph_echo_small_context *)cc, ub, n, dst, 7); |
|
} |
|
|
|
/* see sph_echo.h */ |
|
void |
|
sph_echo256_init(void *cc) |
|
{ |
|
echo_small_init((sph_echo_small_context *)cc, 256); |
|
} |
|
|
|
/* see sph_echo.h */ |
|
void |
|
sph_echo256(void *cc, const void *data, size_t len) |
|
{ |
|
echo_small_core((sph_echo_small_context *)cc, (unsigned char *)data, len); |
|
} |
|
|
|
/* see sph_echo.h */ |
|
void |
|
sph_echo256_close(void *cc, void *dst) |
|
{ |
|
echo_small_close((sph_echo_small_context *)cc, 0, 0, dst, 8); |
|
} |
|
|
|
/* see sph_echo.h */ |
|
void |
|
sph_echo256_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst) |
|
{ |
|
echo_small_close((sph_echo_small_context *)cc, ub, n, dst, 8); |
|
} |
|
|
|
/* see sph_echo.h */ |
|
void |
|
sph_echo384_init(void *cc) |
|
{ |
|
echo_big_init((sph_echo_big_context *)cc, 384); |
|
} |
|
|
|
/* see sph_echo.h */ |
|
void |
|
sph_echo384(void *cc, const void *data, size_t len) |
|
{ |
|
echo_big_core((sph_echo_big_context *)cc, (unsigned char *)data, len); |
|
} |
|
|
|
/* see sph_echo.h */ |
|
void |
|
sph_echo384_close(void *cc, void *dst) |
|
{ |
|
echo_big_close((sph_echo_big_context *)cc, 0, 0, dst, 12); |
|
} |
|
|
|
/* see sph_echo.h */ |
|
void |
|
sph_echo384_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst) |
|
{ |
|
echo_big_close((sph_echo_big_context *)cc, ub, n, dst, 12); |
|
} |
|
|
|
/* see sph_echo.h */ |
|
void |
|
sph_echo512_init(void *cc) |
|
{ |
|
echo_big_init((sph_echo_big_context *)cc, 512); |
|
} |
|
|
|
/* see sph_echo.h */ |
|
void |
|
sph_echo512(void *cc, const void *data, size_t len) |
|
{ |
|
echo_big_core((sph_echo_big_context *)cc, (unsigned char *)data, len); |
|
} |
|
|
|
/* see sph_echo.h */ |
|
void |
|
sph_echo512_close(void *cc, void *dst) |
|
{ |
|
echo_big_close((sph_echo_big_context *)cc, 0, 0, dst, 16); |
|
} |
|
|
|
/* see sph_echo.h */ |
|
void |
|
sph_echo512_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst) |
|
{ |
|
echo_big_close((sph_echo_big_context *)cc, ub, n, dst, 16); |
|
}
|
|
|