| /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
| * All rights reserved. |
| * |
| * This package is an SSL implementation written |
| * by Eric Young (eay@cryptsoft.com). |
| * The implementation was written so as to conform with Netscapes SSL. |
| * |
| * This library is free for commercial and non-commercial use as long as |
| * the following conditions are aheared to. The following conditions |
| * apply to all code found in this distribution, be it the RC4, RSA, |
| * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
| * included with this distribution is covered by the same copyright terms |
| * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
| * |
| * Copyright remains Eric Young's, and as such any Copyright notices in |
| * the code are not to be removed. |
| * If this package is used in a product, Eric Young should be given attribution |
| * as the author of the parts of the library used. |
| * This can be in the form of a textual message at program startup or |
| * in documentation (online or textual) provided with the package. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. All advertising materials mentioning features or use of this software |
| * must display the following acknowledgement: |
| * "This product includes cryptographic software written by |
| * Eric Young (eay@cryptsoft.com)" |
| * The word 'cryptographic' can be left out if the rouines from the library |
| * being used are not cryptographic related :-). |
| * 4. If you include any Windows specific code (or a derivative thereof) from |
| * the apps directory (application code) you must include an acknowledgement: |
| * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
| * |
| * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * The licence and distribution terms for any publically available version or |
| * derivative of this code cannot be changed. i.e. this code cannot simply be |
| * copied and put under another distribution licence |
| * [including the GNU Public Licence.] */ |
| |
| #include <openssl/sha.h> |
| |
| #include <string.h> |
| |
| #include <openssl/mem.h> |
| |
| #include "../../internal.h" |
| #include "../digest/md32_common.h" |
| #include "internal.h" |
| |
| |
| int SHA1_Init(SHA_CTX *sha) { |
| OPENSSL_memset(sha, 0, sizeof(SHA_CTX)); |
| sha->h[0] = 0x67452301UL; |
| sha->h[1] = 0xefcdab89UL; |
| sha->h[2] = 0x98badcfeUL; |
| sha->h[3] = 0x10325476UL; |
| sha->h[4] = 0xc3d2e1f0UL; |
| return 1; |
| } |
| |
| uint8_t *SHA1(const uint8_t *data, size_t len, uint8_t out[SHA_DIGEST_LENGTH]) { |
| SHA_CTX ctx; |
| SHA1_Init(&ctx); |
| SHA1_Update(&ctx, data, len); |
| SHA1_Final(out, &ctx); |
| OPENSSL_cleanse(&ctx, sizeof(ctx)); |
| return out; |
| } |
| |
| #if !defined(SHA1_ASM) |
| static void sha1_block_data_order(uint32_t *state, const uint8_t *data, |
| size_t num); |
| #endif |
| |
| void SHA1_Transform(SHA_CTX *c, const uint8_t data[SHA_CBLOCK]) { |
| sha1_block_data_order(c->h, data, 1); |
| } |
| |
| int SHA1_Update(SHA_CTX *c, const void *data, size_t len) { |
| crypto_md32_update(&sha1_block_data_order, c->h, c->data, SHA_CBLOCK, &c->num, |
| &c->Nh, &c->Nl, data, len); |
| return 1; |
| } |
| |
| int SHA1_Final(uint8_t out[SHA_DIGEST_LENGTH], SHA_CTX *c) { |
| crypto_md32_final(&sha1_block_data_order, c->h, c->data, SHA_CBLOCK, &c->num, |
| c->Nh, c->Nl, /*is_big_endian=*/1); |
| |
| CRYPTO_store_u32_be(out, c->h[0]); |
| CRYPTO_store_u32_be(out + 4, c->h[1]); |
| CRYPTO_store_u32_be(out + 8, c->h[2]); |
| CRYPTO_store_u32_be(out + 12, c->h[3]); |
| CRYPTO_store_u32_be(out + 16, c->h[4]); |
| return 1; |
| } |
| |
| #define ROTATE(a, n) (((a) << (n)) | ((a) >> (32 - (n)))) |
| #define Xupdate(a, ix, ia, ib, ic, id) \ |
| do { \ |
| (a) = ((ia) ^ (ib) ^ (ic) ^ (id)); \ |
| (ix) = (a) = ROTATE((a), 1); \ |
| } while (0) |
| |
| #define K_00_19 0x5a827999UL |
| #define K_20_39 0x6ed9eba1UL |
| #define K_40_59 0x8f1bbcdcUL |
| #define K_60_79 0xca62c1d6UL |
| |
| // As pointed out by Wei Dai <weidai@eskimo.com>, F() below can be simplified |
| // to the code in F_00_19. Wei attributes these optimisations to Peter |
| // Gutmann's SHS code, and he attributes it to Rich Schroeppel. #define |
| // F(x,y,z) (((x) & (y)) | ((~(x)) & (z))) I've just become aware of another |
| // tweak to be made, again from Wei Dai, in F_40_59, (x&a)|(y&a) -> (x|y)&a |
| #define F_00_19(b, c, d) ((((c) ^ (d)) & (b)) ^ (d)) |
| #define F_20_39(b, c, d) ((b) ^ (c) ^ (d)) |
| #define F_40_59(b, c, d) (((b) & (c)) | (((b) | (c)) & (d))) |
| #define F_60_79(b, c, d) F_20_39(b, c, d) |
| |
| #define BODY_00_15(i, a, b, c, d, e, f, xi) \ |
| do { \ |
| (f) = (xi) + (e) + K_00_19 + ROTATE((a), 5) + F_00_19((b), (c), (d)); \ |
| (b) = ROTATE((b), 30); \ |
| } while (0) |
| |
| #define BODY_16_19(i, a, b, c, d, e, f, xi, xa, xb, xc, xd) \ |
| do { \ |
| Xupdate(f, xi, xa, xb, xc, xd); \ |
| (f) += (e) + K_00_19 + ROTATE((a), 5) + F_00_19((b), (c), (d)); \ |
| (b) = ROTATE((b), 30); \ |
| } while (0) |
| |
| #define BODY_20_31(i, a, b, c, d, e, f, xi, xa, xb, xc, xd) \ |
| do { \ |
| Xupdate(f, xi, xa, xb, xc, xd); \ |
| (f) += (e) + K_20_39 + ROTATE((a), 5) + F_20_39((b), (c), (d)); \ |
| (b) = ROTATE((b), 30); \ |
| } while (0) |
| |
| #define BODY_32_39(i, a, b, c, d, e, f, xa, xb, xc, xd) \ |
| do { \ |
| Xupdate(f, xa, xa, xb, xc, xd); \ |
| (f) += (e) + K_20_39 + ROTATE((a), 5) + F_20_39((b), (c), (d)); \ |
| (b) = ROTATE((b), 30); \ |
| } while (0) |
| |
| #define BODY_40_59(i, a, b, c, d, e, f, xa, xb, xc, xd) \ |
| do { \ |
| Xupdate(f, xa, xa, xb, xc, xd); \ |
| (f) += (e) + K_40_59 + ROTATE((a), 5) + F_40_59((b), (c), (d)); \ |
| (b) = ROTATE((b), 30); \ |
| } while (0) |
| |
| #define BODY_60_79(i, a, b, c, d, e, f, xa, xb, xc, xd) \ |
| do { \ |
| Xupdate(f, xa, xa, xb, xc, xd); \ |
| (f) = (xa) + (e) + K_60_79 + ROTATE((a), 5) + F_60_79((b), (c), (d)); \ |
| (b) = ROTATE((b), 30); \ |
| } while (0) |
| |
| #ifdef X |
| #undef X |
| #endif |
| |
| /* Originally X was an array. As it's automatic it's natural |
| * to expect RISC compiler to accomodate at least part of it in |
| * the register bank, isn't it? Unfortunately not all compilers |
| * "find" this expectation reasonable:-( On order to make such |
| * compilers generate better code I replace X[] with a bunch of |
| * X0, X1, etc. See the function body below... |
| * <appro@fy.chalmers.se> */ |
| #define X(i) XX##i |
| |
| #if !defined(SHA1_ASM) |
| static void sha1_block_data_order(uint32_t *state, const uint8_t *data, |
| size_t num) { |
| register uint32_t A, B, C, D, E, T; |
| uint32_t XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7, XX8, XX9, XX10, |
| XX11, XX12, XX13, XX14, XX15; |
| |
| A = state[0]; |
| B = state[1]; |
| C = state[2]; |
| D = state[3]; |
| E = state[4]; |
| |
| for (;;) { |
| X(0) = CRYPTO_load_u32_be(data); |
| data += 4; |
| X(1) = CRYPTO_load_u32_be(data); |
| data += 4; |
| BODY_00_15(0, A, B, C, D, E, T, X(0)); |
| X(2) = CRYPTO_load_u32_be(data); |
| data += 4; |
| BODY_00_15(1, T, A, B, C, D, E, X(1)); |
| X(3) = CRYPTO_load_u32_be(data); |
| data += 4; |
| BODY_00_15(2, E, T, A, B, C, D, X(2)); |
| X(4) = CRYPTO_load_u32_be(data); |
| data += 4; |
| BODY_00_15(3, D, E, T, A, B, C, X(3)); |
| X(5) = CRYPTO_load_u32_be(data); |
| data += 4; |
| BODY_00_15(4, C, D, E, T, A, B, X(4)); |
| X(6) = CRYPTO_load_u32_be(data); |
| data += 4; |
| BODY_00_15(5, B, C, D, E, T, A, X(5)); |
| X(7) = CRYPTO_load_u32_be(data); |
| data += 4; |
| BODY_00_15(6, A, B, C, D, E, T, X(6)); |
| X(8) = CRYPTO_load_u32_be(data); |
| data += 4; |
| BODY_00_15(7, T, A, B, C, D, E, X(7)); |
| X(9) = CRYPTO_load_u32_be(data); |
| data += 4; |
| BODY_00_15(8, E, T, A, B, C, D, X(8)); |
| X(10) = CRYPTO_load_u32_be(data); |
| data += 4; |
| BODY_00_15(9, D, E, T, A, B, C, X(9)); |
| X(11) = CRYPTO_load_u32_be(data); |
| data += 4; |
| BODY_00_15(10, C, D, E, T, A, B, X(10)); |
| X(12) = CRYPTO_load_u32_be(data); |
| data += 4; |
| BODY_00_15(11, B, C, D, E, T, A, X(11)); |
| X(13) = CRYPTO_load_u32_be(data); |
| data += 4; |
| BODY_00_15(12, A, B, C, D, E, T, X(12)); |
| X(14) = CRYPTO_load_u32_be(data); |
| data += 4; |
| BODY_00_15(13, T, A, B, C, D, E, X(13)); |
| X(15) = CRYPTO_load_u32_be(data); |
| data += 4; |
| BODY_00_15(14, E, T, A, B, C, D, X(14)); |
| BODY_00_15(15, D, E, T, A, B, C, X(15)); |
| |
| BODY_16_19(16, C, D, E, T, A, B, X(0), X(0), X(2), X(8), X(13)); |
| BODY_16_19(17, B, C, D, E, T, A, X(1), X(1), X(3), X(9), X(14)); |
| BODY_16_19(18, A, B, C, D, E, T, X(2), X(2), X(4), X(10), X(15)); |
| BODY_16_19(19, T, A, B, C, D, E, X(3), X(3), X(5), X(11), X(0)); |
| |
| BODY_20_31(20, E, T, A, B, C, D, X(4), X(4), X(6), X(12), X(1)); |
| BODY_20_31(21, D, E, T, A, B, C, X(5), X(5), X(7), X(13), X(2)); |
| BODY_20_31(22, C, D, E, T, A, B, X(6), X(6), X(8), X(14), X(3)); |
| BODY_20_31(23, B, C, D, E, T, A, X(7), X(7), X(9), X(15), X(4)); |
| BODY_20_31(24, A, B, C, D, E, T, X(8), X(8), X(10), X(0), X(5)); |
| BODY_20_31(25, T, A, B, C, D, E, X(9), X(9), X(11), X(1), X(6)); |
| BODY_20_31(26, E, T, A, B, C, D, X(10), X(10), X(12), X(2), X(7)); |
| BODY_20_31(27, D, E, T, A, B, C, X(11), X(11), X(13), X(3), X(8)); |
| BODY_20_31(28, C, D, E, T, A, B, X(12), X(12), X(14), X(4), X(9)); |
| BODY_20_31(29, B, C, D, E, T, A, X(13), X(13), X(15), X(5), X(10)); |
| BODY_20_31(30, A, B, C, D, E, T, X(14), X(14), X(0), X(6), X(11)); |
| BODY_20_31(31, T, A, B, C, D, E, X(15), X(15), X(1), X(7), X(12)); |
| |
| BODY_32_39(32, E, T, A, B, C, D, X(0), X(2), X(8), X(13)); |
| BODY_32_39(33, D, E, T, A, B, C, X(1), X(3), X(9), X(14)); |
| BODY_32_39(34, C, D, E, T, A, B, X(2), X(4), X(10), X(15)); |
| BODY_32_39(35, B, C, D, E, T, A, X(3), X(5), X(11), X(0)); |
| BODY_32_39(36, A, B, C, D, E, T, X(4), X(6), X(12), X(1)); |
| BODY_32_39(37, T, A, B, C, D, E, X(5), X(7), X(13), X(2)); |
| BODY_32_39(38, E, T, A, B, C, D, X(6), X(8), X(14), X(3)); |
| BODY_32_39(39, D, E, T, A, B, C, X(7), X(9), X(15), X(4)); |
| |
| BODY_40_59(40, C, D, E, T, A, B, X(8), X(10), X(0), X(5)); |
| BODY_40_59(41, B, C, D, E, T, A, X(9), X(11), X(1), X(6)); |
| BODY_40_59(42, A, B, C, D, E, T, X(10), X(12), X(2), X(7)); |
| BODY_40_59(43, T, A, B, C, D, E, X(11), X(13), X(3), X(8)); |
| BODY_40_59(44, E, T, A, B, C, D, X(12), X(14), X(4), X(9)); |
| BODY_40_59(45, D, E, T, A, B, C, X(13), X(15), X(5), X(10)); |
| BODY_40_59(46, C, D, E, T, A, B, X(14), X(0), X(6), X(11)); |
| BODY_40_59(47, B, C, D, E, T, A, X(15), X(1), X(7), X(12)); |
| BODY_40_59(48, A, B, C, D, E, T, X(0), X(2), X(8), X(13)); |
| BODY_40_59(49, T, A, B, C, D, E, X(1), X(3), X(9), X(14)); |
| BODY_40_59(50, E, T, A, B, C, D, X(2), X(4), X(10), X(15)); |
| BODY_40_59(51, D, E, T, A, B, C, X(3), X(5), X(11), X(0)); |
| BODY_40_59(52, C, D, E, T, A, B, X(4), X(6), X(12), X(1)); |
| BODY_40_59(53, B, C, D, E, T, A, X(5), X(7), X(13), X(2)); |
| BODY_40_59(54, A, B, C, D, E, T, X(6), X(8), X(14), X(3)); |
| BODY_40_59(55, T, A, B, C, D, E, X(7), X(9), X(15), X(4)); |
| BODY_40_59(56, E, T, A, B, C, D, X(8), X(10), X(0), X(5)); |
| BODY_40_59(57, D, E, T, A, B, C, X(9), X(11), X(1), X(6)); |
| BODY_40_59(58, C, D, E, T, A, B, X(10), X(12), X(2), X(7)); |
| BODY_40_59(59, B, C, D, E, T, A, X(11), X(13), X(3), X(8)); |
| |
| BODY_60_79(60, A, B, C, D, E, T, X(12), X(14), X(4), X(9)); |
| BODY_60_79(61, T, A, B, C, D, E, X(13), X(15), X(5), X(10)); |
| BODY_60_79(62, E, T, A, B, C, D, X(14), X(0), X(6), X(11)); |
| BODY_60_79(63, D, E, T, A, B, C, X(15), X(1), X(7), X(12)); |
| BODY_60_79(64, C, D, E, T, A, B, X(0), X(2), X(8), X(13)); |
| BODY_60_79(65, B, C, D, E, T, A, X(1), X(3), X(9), X(14)); |
| BODY_60_79(66, A, B, C, D, E, T, X(2), X(4), X(10), X(15)); |
| BODY_60_79(67, T, A, B, C, D, E, X(3), X(5), X(11), X(0)); |
| BODY_60_79(68, E, T, A, B, C, D, X(4), X(6), X(12), X(1)); |
| BODY_60_79(69, D, E, T, A, B, C, X(5), X(7), X(13), X(2)); |
| BODY_60_79(70, C, D, E, T, A, B, X(6), X(8), X(14), X(3)); |
| BODY_60_79(71, B, C, D, E, T, A, X(7), X(9), X(15), X(4)); |
| BODY_60_79(72, A, B, C, D, E, T, X(8), X(10), X(0), X(5)); |
| BODY_60_79(73, T, A, B, C, D, E, X(9), X(11), X(1), X(6)); |
| BODY_60_79(74, E, T, A, B, C, D, X(10), X(12), X(2), X(7)); |
| BODY_60_79(75, D, E, T, A, B, C, X(11), X(13), X(3), X(8)); |
| BODY_60_79(76, C, D, E, T, A, B, X(12), X(14), X(4), X(9)); |
| BODY_60_79(77, B, C, D, E, T, A, X(13), X(15), X(5), X(10)); |
| BODY_60_79(78, A, B, C, D, E, T, X(14), X(0), X(6), X(11)); |
| BODY_60_79(79, T, A, B, C, D, E, X(15), X(1), X(7), X(12)); |
| |
| state[0] = (state[0] + E) & 0xffffffffL; |
| state[1] = (state[1] + T) & 0xffffffffL; |
| state[2] = (state[2] + A) & 0xffffffffL; |
| state[3] = (state[3] + B) & 0xffffffffL; |
| state[4] = (state[4] + C) & 0xffffffffL; |
| |
| if (--num == 0) { |
| break; |
| } |
| |
| A = state[0]; |
| B = state[1]; |
| C = state[2]; |
| D = state[3]; |
| E = state[4]; |
| } |
| } |
| #endif |
| |
| #undef ROTATE |
| #undef Xupdate |
| #undef K_00_19 |
| #undef K_20_39 |
| #undef K_40_59 |
| #undef K_60_79 |
| #undef F_00_19 |
| #undef F_20_39 |
| #undef F_40_59 |
| #undef F_60_79 |
| #undef BODY_00_15 |
| #undef BODY_16_19 |
| #undef BODY_20_31 |
| #undef BODY_32_39 |
| #undef BODY_40_59 |
| #undef BODY_60_79 |
| #undef X |
