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Diffstat (limited to 'contrib/bind9/lib/isc/sha1.c')
| -rw-r--r-- | contrib/bind9/lib/isc/sha1.c | 309 |
1 files changed, 0 insertions, 309 deletions
diff --git a/contrib/bind9/lib/isc/sha1.c b/contrib/bind9/lib/isc/sha1.c deleted file mode 100644 index 0549e887ab8e..000000000000 --- a/contrib/bind9/lib/isc/sha1.c +++ /dev/null @@ -1,309 +0,0 @@ -/* - * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC") - * Copyright (C) 2000, 2001, 2003 Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH - * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, - * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM - * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE - * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. - */ - -/* $Id: sha1.c,v 1.10.2.2.2.3 2004/03/06 08:14:35 marka Exp $ */ - -/* $NetBSD: sha1.c,v 1.5 2000/01/22 22:19:14 mycroft Exp $ */ -/* $OpenBSD: sha1.c,v 1.9 1997/07/23 21:12:32 kstailey Exp $ */ - -/* - * SHA-1 in C - * By Steve Reid <steve@edmweb.com> - * 100% Public Domain - * - * Test Vectors (from FIPS PUB 180-1) - * "abc" - * A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D - * "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" - * 84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1 - * A million repetitions of "a" - * 34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F - */ - -#include "config.h" - -#include <isc/assertions.h> -#include <isc/sha1.h> -#include <isc/string.h> -#include <isc/types.h> -#include <isc/util.h> - -#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits)))) - -/* - * blk0() and blk() perform the initial expand. - * I got the idea of expanding during the round function from SSLeay - */ -#if !defined(WORDS_BIGENDIAN) -# define blk0(i) \ - (block->l[i] = (rol(block->l[i], 24) & 0xFF00FF00) \ - | (rol(block->l[i], 8) & 0x00FF00FF)) -#else -# define blk0(i) block->l[i] -#endif -#define blk(i) \ - (block->l[i & 15] = rol(block->l[(i + 13) & 15] \ - ^ block->l[(i + 8) & 15] \ - ^ block->l[(i + 2) & 15] \ - ^ block->l[i & 15], 1)) - -/* - * (R0+R1), R2, R3, R4 are the different operations (rounds) used in SHA1 - */ -#define R0(v,w,x,y,z,i) \ - z += ((w & (x ^ y)) ^ y) + blk0(i) + 0x5A827999 + rol(v, 5); \ - w = rol(w, 30); -#define R1(v,w,x,y,z,i) \ - z += ((w & (x ^ y)) ^ y) + blk(i) + 0x5A827999 + rol(v, 5); \ - w = rol(w, 30); -#define R2(v,w,x,y,z,i) \ - z += (w ^ x ^ y) + blk(i) + 0x6ED9EBA1 + rol(v, 5); \ - w = rol(w, 30); -#define R3(v,w,x,y,z,i) \ - z += (((w | x) & y) | (w & x)) + blk(i) + 0x8F1BBCDC + rol(v, 5); \ - w = rol(w, 30); -#define R4(v,w,x,y,z,i) \ - z += (w ^ x ^ y) + blk(i) + 0xCA62C1D6 + rol(v, 5); \ - w = rol(w, 30); - -typedef union { - unsigned char c[64]; - unsigned int l[16]; -} CHAR64LONG16; - -#ifdef __sparc_v9__ -static void do_R01(isc_uint32_t *a, isc_uint32_t *b, isc_uint32_t *c, - isc_uint32_t *d, isc_uint32_t *e, CHAR64LONG16 *); -static void do_R2(isc_uint32_t *a, isc_uint32_t *b, isc_uint32_t *c, - isc_uint32_t *d, isc_uint32_t *e, CHAR64LONG16 *); -static void do_R3(isc_uint32_t *a, isc_uint32_t *b, isc_uint32_t *c, - isc_uint32_t *d, isc_uint32_t *e, CHAR64LONG16 *); -static void do_R4(isc_uint32_t *a, isc_uint32_t *b, isc_uint32_t *c, - isc_uint32_t *d, isc_uint32_t *e, CHAR64LONG16 *); - -#define nR0(v,w,x,y,z,i) R0(*v,*w,*x,*y,*z,i) -#define nR1(v,w,x,y,z,i) R1(*v,*w,*x,*y,*z,i) -#define nR2(v,w,x,y,z,i) R2(*v,*w,*x,*y,*z,i) -#define nR3(v,w,x,y,z,i) R3(*v,*w,*x,*y,*z,i) -#define nR4(v,w,x,y,z,i) R4(*v,*w,*x,*y,*z,i) - -static void -do_R01(isc_uint32_t *a, isc_uint32_t *b, isc_uint32_t *c, isc_uint32_t *d, - isc_uint32_t *e, CHAR64LONG16 *block) -{ - nR0(a,b,c,d,e, 0); nR0(e,a,b,c,d, 1); nR0(d,e,a,b,c, 2); - nR0(c,d,e,a,b, 3); nR0(b,c,d,e,a, 4); nR0(a,b,c,d,e, 5); - nR0(e,a,b,c,d, 6); nR0(d,e,a,b,c, 7); nR0(c,d,e,a,b, 8); - nR0(b,c,d,e,a, 9); nR0(a,b,c,d,e,10); nR0(e,a,b,c,d,11); - nR0(d,e,a,b,c,12); nR0(c,d,e,a,b,13); nR0(b,c,d,e,a,14); - nR0(a,b,c,d,e,15); nR1(e,a,b,c,d,16); nR1(d,e,a,b,c,17); - nR1(c,d,e,a,b,18); nR1(b,c,d,e,a,19); -} - -static void -do_R2(isc_uint32_t *a, isc_uint32_t *b, isc_uint32_t *c, isc_uint32_t *d, - isc_uint32_t *e, CHAR64LONG16 *block) -{ - nR2(a,b,c,d,e,20); nR2(e,a,b,c,d,21); nR2(d,e,a,b,c,22); - nR2(c,d,e,a,b,23); nR2(b,c,d,e,a,24); nR2(a,b,c,d,e,25); - nR2(e,a,b,c,d,26); nR2(d,e,a,b,c,27); nR2(c,d,e,a,b,28); - nR2(b,c,d,e,a,29); nR2(a,b,c,d,e,30); nR2(e,a,b,c,d,31); - nR2(d,e,a,b,c,32); nR2(c,d,e,a,b,33); nR2(b,c,d,e,a,34); - nR2(a,b,c,d,e,35); nR2(e,a,b,c,d,36); nR2(d,e,a,b,c,37); - nR2(c,d,e,a,b,38); nR2(b,c,d,e,a,39); -} - -static void -do_R3(isc_uint32_t *a, isc_uint32_t *b, isc_uint32_t *c, isc_uint32_t *d, - isc_uint32_t *e, CHAR64LONG16 *block) -{ - nR3(a,b,c,d,e,40); nR3(e,a,b,c,d,41); nR3(d,e,a,b,c,42); - nR3(c,d,e,a,b,43); nR3(b,c,d,e,a,44); nR3(a,b,c,d,e,45); - nR3(e,a,b,c,d,46); nR3(d,e,a,b,c,47); nR3(c,d,e,a,b,48); - nR3(b,c,d,e,a,49); nR3(a,b,c,d,e,50); nR3(e,a,b,c,d,51); - nR3(d,e,a,b,c,52); nR3(c,d,e,a,b,53); nR3(b,c,d,e,a,54); - nR3(a,b,c,d,e,55); nR3(e,a,b,c,d,56); nR3(d,e,a,b,c,57); - nR3(c,d,e,a,b,58); nR3(b,c,d,e,a,59); -} - -static void -do_R4(isc_uint32_t *a, isc_uint32_t *b, isc_uint32_t *c, isc_uint32_t *d, - isc_uint32_t *e, CHAR64LONG16 *block) -{ - nR4(a,b,c,d,e,60); nR4(e,a,b,c,d,61); nR4(d,e,a,b,c,62); - nR4(c,d,e,a,b,63); nR4(b,c,d,e,a,64); nR4(a,b,c,d,e,65); - nR4(e,a,b,c,d,66); nR4(d,e,a,b,c,67); nR4(c,d,e,a,b,68); - nR4(b,c,d,e,a,69); nR4(a,b,c,d,e,70); nR4(e,a,b,c,d,71); - nR4(d,e,a,b,c,72); nR4(c,d,e,a,b,73); nR4(b,c,d,e,a,74); - nR4(a,b,c,d,e,75); nR4(e,a,b,c,d,76); nR4(d,e,a,b,c,77); - nR4(c,d,e,a,b,78); nR4(b,c,d,e,a,79); -} -#endif - -/* - * Hash a single 512-bit block. This is the core of the algorithm. - */ -static void -transform(isc_uint32_t state[5], const unsigned char buffer[64]) { - isc_uint32_t a, b, c, d, e; - CHAR64LONG16 *block; - CHAR64LONG16 workspace; - - INSIST(buffer != NULL); - INSIST(state != NULL); - - block = &workspace; - (void)memcpy(block, buffer, 64); - - /* Copy context->state[] to working vars */ - a = state[0]; - b = state[1]; - c = state[2]; - d = state[3]; - e = state[4]; - -#ifdef __sparc_v9__ - do_R01(&a, &b, &c, &d, &e, block); - do_R2(&a, &b, &c, &d, &e, block); - do_R3(&a, &b, &c, &d, &e, block); - do_R4(&a, &b, &c, &d, &e, block); -#else - /* 4 rounds of 20 operations each. Loop unrolled. */ - R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3); - R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7); - R0(c,d,e,a,b, 8); R0(b,c,d,e,a, 9); R0(a,b,c,d,e,10); R0(e,a,b,c,d,11); - R0(d,e,a,b,c,12); R0(c,d,e,a,b,13); R0(b,c,d,e,a,14); R0(a,b,c,d,e,15); - R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19); - R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23); - R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27); - R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31); - R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35); - R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39); - R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43); - R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47); - R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51); - R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55); - R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59); - R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63); - R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67); - R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71); - R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75); - R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79); -#endif - - /* Add the working vars back into context.state[] */ - state[0] += a; - state[1] += b; - state[2] += c; - state[3] += d; - state[4] += e; - - /* Wipe variables */ - a = b = c = d = e = 0; -} - - -/* - * isc_sha1_init - Initialize new context - */ -void -isc_sha1_init(isc_sha1_t *context) -{ - INSIST(context != NULL); - - /* SHA1 initialization constants */ - context->state[0] = 0x67452301; - context->state[1] = 0xEFCDAB89; - context->state[2] = 0x98BADCFE; - context->state[3] = 0x10325476; - context->state[4] = 0xC3D2E1F0; - context->count[0] = 0; - context->count[1] = 0; -} - -void -isc_sha1_invalidate(isc_sha1_t *context) { - memset(context, 0, sizeof(isc_sha1_t)); -} - -/* - * Run your data through this. - */ -void -isc_sha1_update(isc_sha1_t *context, const unsigned char *data, - unsigned int len) -{ - unsigned int i, j; - - INSIST(context != 0); - INSIST(data != 0); - - j = context->count[0]; - if ((context->count[0] += len << 3) < j) - context->count[1] += (len >> 29) + 1; - j = (j >> 3) & 63; - if ((j + len) > 63) { - (void)memcpy(&context->buffer[j], data, (i = 64 - j)); - transform(context->state, context->buffer); - for (; i + 63 < len; i += 64) - transform(context->state, &data[i]); - j = 0; - } else { - i = 0; - } - - (void)memcpy(&context->buffer[j], &data[i], len - i); -} - - -/* - * Add padding and return the message digest. - */ - -static const unsigned char final_200 = 128; -static const unsigned char final_0 = 0; - -void -isc_sha1_final(isc_sha1_t *context, unsigned char *digest) { - unsigned int i; - unsigned char finalcount[8]; - - INSIST(digest != 0); - INSIST(context != 0); - - for (i = 0; i < 8; i++) { - /* Endian independent */ - finalcount[i] = (unsigned char) - ((context->count[(i >= 4 ? 0 : 1)] - >> ((3 - (i & 3)) * 8)) & 255); - } - - isc_sha1_update(context, &final_200, 1); - while ((context->count[0] & 504) != 448) - isc_sha1_update(context, &final_0, 1); - /* The next Update should cause a transform() */ - isc_sha1_update(context, finalcount, 8); - - if (digest) { - for (i = 0; i < 20; i++) - digest[i] = (unsigned char) - ((context->state[i >> 2] - >> ((3 - (i & 3)) * 8)) & 255); - } - - memset(context, 0, sizeof(isc_sha1_t)); -} |