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- /* 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>
-
-
- #if !defined(OPENSSL_NO_ASM) && \
- (defined(OPENSSL_X86) || defined(OPENSSL_X86_64) || \
- defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64))
- #define SHA1_ASM
- #endif
-
- int SHA1_Init(SHA_CTX *sha) {
- memset(sha, 0, sizeof(SHA_CTX));
- sha->h0 = 0x67452301UL;
- sha->h1 = 0xefcdab89UL;
- sha->h2 = 0x98badcfeUL;
- sha->h3 = 0x10325476UL;
- sha->h4 = 0xc3d2e1f0UL;
- return 1;
- }
-
- uint8_t *SHA1(const uint8_t *data, size_t len, uint8_t *out) {
- SHA_CTX ctx;
- static uint8_t buf[SHA_DIGEST_LENGTH];
-
- /* TODO(fork): remove this static buffer. */
- if (out == NULL) {
- out = buf;
- }
- if (!SHA1_Init(&ctx)) {
- return NULL;
- }
- SHA1_Update(&ctx, data, len);
- SHA1_Final(out, &ctx);
- OPENSSL_cleanse(&ctx, sizeof(ctx));
- return out;
- }
-
- #define DATA_ORDER_IS_BIG_ENDIAN
-
- #define HASH_LONG uint32_t
- #define HASH_CTX SHA_CTX
- #define HASH_CBLOCK 64
- #define HASH_MAKE_STRING(c, s) \
- do { \
- uint32_t ll; \
- ll = (c)->h0; \
- (void) HOST_l2c(ll, (s)); \
- ll = (c)->h1; \
- (void) HOST_l2c(ll, (s)); \
- ll = (c)->h2; \
- (void) HOST_l2c(ll, (s)); \
- ll = (c)->h3; \
- (void) HOST_l2c(ll, (s)); \
- ll = (c)->h4; \
- (void) HOST_l2c(ll, (s)); \
- } while (0)
-
- #define HASH_UPDATE SHA1_Update
- #define HASH_TRANSFORM SHA1_Transform
- #define HASH_FINAL SHA1_Final
- #define HASH_BLOCK_DATA_ORDER sha1_block_data_order
- #define Xupdate(a, ix, ia, ib, ic, id) \
- ((a) = (ia ^ ib ^ ic ^ id), ix = (a) = ROTATE((a), 1))
-
- #ifndef SHA1_ASM
- static
- #endif
- void sha1_block_data_order(SHA_CTX *c, const void *p, size_t num);
-
- #include "../digest/md32_common.h"
-
- #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) \
- (f) = xi + (e) + K_00_19 + ROTATE((a), 5) + F_00_19((b), (c), (d)); \
- (b) = ROTATE((b), 30);
-
- #define BODY_16_19(i, a, b, c, d, e, f, xi, xa, xb, xc, xd) \
- 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);
-
- #define BODY_20_31(i, a, b, c, d, e, f, xi, xa, xb, xc, xd) \
- 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);
-
- #define BODY_32_39(i, a, b, c, d, e, f, xa, xb, xc, xd) \
- 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);
-
- #define BODY_40_59(i, a, b, c, d, e, f, xa, xb, xc, xd) \
- 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);
-
- #define BODY_60_79(i, a, b, c, d, e, f, xa, xb, xc, xd) \
- 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);
-
- #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 HASH_BLOCK_DATA_ORDER(SHA_CTX *c, const void *p, size_t num) {
- const uint8_t *data = p;
- register uint32_t A, B, C, D, E, T, l;
- uint32_t XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7, XX8, XX9, XX10,
- XX11, XX12, XX13, XX14, XX15;
-
- A = c->h0;
- B = c->h1;
- C = c->h2;
- D = c->h3;
- E = c->h4;
-
- for (;;) {
- const union {
- long one;
- char little;
- } is_endian = {1};
-
- if (!is_endian.little && ((size_t)p % 4) == 0) {
- const uint32_t *W = (const uint32_t *)data;
-
- X(0) = W[0];
- X(1) = W[1];
- BODY_00_15(0, A, B, C, D, E, T, X(0));
- X(2) = W[2];
- BODY_00_15(1, T, A, B, C, D, E, X(1));
- X(3) = W[3];
- BODY_00_15(2, E, T, A, B, C, D, X(2));
- X(4) = W[4];
- BODY_00_15(3, D, E, T, A, B, C, X(3));
- X(5) = W[5];
- BODY_00_15(4, C, D, E, T, A, B, X(4));
- X(6) = W[6];
- BODY_00_15(5, B, C, D, E, T, A, X(5));
- X(7) = W[7];
- BODY_00_15(6, A, B, C, D, E, T, X(6));
- X(8) = W[8];
- BODY_00_15(7, T, A, B, C, D, E, X(7));
- X(9) = W[9];
- BODY_00_15(8, E, T, A, B, C, D, X(8));
- X(10) = W[10];
- BODY_00_15(9, D, E, T, A, B, C, X(9));
- X(11) = W[11];
- BODY_00_15(10, C, D, E, T, A, B, X(10));
- X(12) = W[12];
- BODY_00_15(11, B, C, D, E, T, A, X(11));
- X(13) = W[13];
- BODY_00_15(12, A, B, C, D, E, T, X(12));
- X(14) = W[14];
- BODY_00_15(13, T, A, B, C, D, E, X(13));
- X(15) = W[15];
- BODY_00_15(14, E, T, A, B, C, D, X(14));
- BODY_00_15(15, D, E, T, A, B, C, X(15));
-
- data += HASH_CBLOCK;
- } else {
- (void)HOST_c2l(data, l);
- X(0) = l;
- (void)HOST_c2l(data, l);
- X(1) = l;
- BODY_00_15(0, A, B, C, D, E, T, X(0));
- (void)HOST_c2l(data, l);
- X(2) = l;
- BODY_00_15(1, T, A, B, C, D, E, X(1));
- (void)HOST_c2l(data, l);
- X(3) = l;
- BODY_00_15(2, E, T, A, B, C, D, X(2));
- (void)HOST_c2l(data, l);
- X(4) = l;
- BODY_00_15(3, D, E, T, A, B, C, X(3));
- (void)HOST_c2l(data, l);
- X(5) = l;
- BODY_00_15(4, C, D, E, T, A, B, X(4));
- (void)HOST_c2l(data, l);
- X(6) = l;
- BODY_00_15(5, B, C, D, E, T, A, X(5));
- (void)HOST_c2l(data, l);
- X(7) = l;
- BODY_00_15(6, A, B, C, D, E, T, X(6));
- (void)HOST_c2l(data, l);
- X(8) = l;
- BODY_00_15(7, T, A, B, C, D, E, X(7));
- (void)HOST_c2l(data, l);
- X(9) = l;
- BODY_00_15(8, E, T, A, B, C, D, X(8));
- (void)HOST_c2l(data, l);
- X(10) = l;
- BODY_00_15(9, D, E, T, A, B, C, X(9));
- (void)HOST_c2l(data, l);
- X(11) = l;
- BODY_00_15(10, C, D, E, T, A, B, X(10));
- (void)HOST_c2l(data, l);
- X(12) = l;
- BODY_00_15(11, B, C, D, E, T, A, X(11));
- (void)HOST_c2l(data, l);
- X(13) = l;
- BODY_00_15(12, A, B, C, D, E, T, X(12));
- (void)HOST_c2l(data, l);
- X(14) = l;
- BODY_00_15(13, T, A, B, C, D, E, X(13));
- (void)HOST_c2l(data, l);
- X(15) = l;
- 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));
-
- c->h0 = (c->h0 + E) & 0xffffffffL;
- c->h1 = (c->h1 + T) & 0xffffffffL;
- c->h2 = (c->h2 + A) & 0xffffffffL;
- c->h3 = (c->h3 + B) & 0xffffffffL;
- c->h4 = (c->h4 + C) & 0xffffffffL;
-
- if (--num == 0) {
- break;
- }
-
- A = c->h0;
- B = c->h1;
- C = c->h2;
- D = c->h3;
- E = c->h4;
- }
- }
- #endif
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