Commit 03d5f74aeec3c282f06ff0151596df25ab88659a
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update
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@419 c046a42c-6fe2-441c-8c8c-71466251a162
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tests/Makefile
tests/sha1.c
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| 1 | + | |
| 2 | +/* from valgrind tests */ | |
| 3 | + | |
| 4 | +/* ================ sha1.c ================ */ | |
| 5 | +/* | |
| 6 | +SHA-1 in C | |
| 7 | +By Steve Reid <steve@edmweb.com> | |
| 8 | +100% Public Domain | |
| 9 | + | |
| 10 | +Test Vectors (from FIPS PUB 180-1) | |
| 11 | +"abc" | |
| 12 | + A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D | |
| 13 | +"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" | |
| 14 | + 84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1 | |
| 15 | +A million repetitions of "a" | |
| 16 | + 34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F | |
| 17 | +*/ | |
| 18 | + | |
| 19 | +/* #define LITTLE_ENDIAN * This should be #define'd already, if true. */ | |
| 20 | +/* #define SHA1HANDSOFF * Copies data before messing with it. */ | |
| 21 | + | |
| 22 | +#define SHA1HANDSOFF | |
| 23 | + | |
| 24 | +#include <stdio.h> | |
| 25 | +#include <string.h> | |
| 26 | +#include <sys/types.h> /* for u_int*_t */ | |
| 27 | + | |
| 28 | +/* ================ sha1.h ================ */ | |
| 29 | +/* | |
| 30 | +SHA-1 in C | |
| 31 | +By Steve Reid <steve@edmweb.com> | |
| 32 | +100% Public Domain | |
| 33 | +*/ | |
| 34 | + | |
| 35 | +typedef struct { | |
| 36 | + u_int32_t state[5]; | |
| 37 | + u_int32_t count[2]; | |
| 38 | + unsigned char buffer[64]; | |
| 39 | +} SHA1_CTX; | |
| 40 | + | |
| 41 | +void SHA1Transform(u_int32_t state[5], const unsigned char buffer[64]); | |
| 42 | +void SHA1Init(SHA1_CTX* context); | |
| 43 | +void SHA1Update(SHA1_CTX* context, const unsigned char* data, u_int32_t len); | |
| 44 | +void SHA1Final(unsigned char digest[20], SHA1_CTX* context); | |
| 45 | +/* ================ end of sha1.h ================ */ | |
| 46 | +#include <endian.h> | |
| 47 | + | |
| 48 | +#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits)))) | |
| 49 | + | |
| 50 | +/* blk0() and blk() perform the initial expand. */ | |
| 51 | +/* I got the idea of expanding during the round function from SSLeay */ | |
| 52 | +#if BYTE_ORDER == LITTLE_ENDIAN | |
| 53 | +#define blk0(i) (block->l[i] = (rol(block->l[i],24)&0xFF00FF00) \ | |
| 54 | + |(rol(block->l[i],8)&0x00FF00FF)) | |
| 55 | +#elif BYTE_ORDER == BIG_ENDIAN | |
| 56 | +#define blk0(i) block->l[i] | |
| 57 | +#else | |
| 58 | +#error "Endianness not defined!" | |
| 59 | +#endif | |
| 60 | +#define blk(i) (block->l[i&15] = rol(block->l[(i+13)&15]^block->l[(i+8)&15] \ | |
| 61 | + ^block->l[(i+2)&15]^block->l[i&15],1)) | |
| 62 | + | |
| 63 | +/* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */ | |
| 64 | +#define R0(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk0(i)+0x5A827999+rol(v,5);w=rol(w,30); | |
| 65 | +#define R1(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30); | |
| 66 | +#define R2(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30); | |
| 67 | +#define R3(v,w,x,y,z,i) z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30); | |
| 68 | +#define R4(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30); | |
| 69 | + | |
| 70 | + | |
| 71 | +/* Hash a single 512-bit block. This is the core of the algorithm. */ | |
| 72 | + | |
| 73 | +void SHA1Transform(u_int32_t state[5], const unsigned char buffer[64]) | |
| 74 | +{ | |
| 75 | +u_int32_t a, b, c, d, e; | |
| 76 | +typedef union { | |
| 77 | + unsigned char c[64]; | |
| 78 | + u_int32_t l[16]; | |
| 79 | +} CHAR64LONG16; | |
| 80 | +#ifdef SHA1HANDSOFF | |
| 81 | +CHAR64LONG16 block[1]; /* use array to appear as a pointer */ | |
| 82 | + memcpy(block, buffer, 64); | |
| 83 | +#else | |
| 84 | + /* The following had better never be used because it causes the | |
| 85 | + * pointer-to-const buffer to be cast into a pointer to non-const. | |
| 86 | + * And the result is written through. I threw a "const" in, hoping | |
| 87 | + * this will cause a diagnostic. | |
| 88 | + */ | |
| 89 | +CHAR64LONG16* block = (const CHAR64LONG16*)buffer; | |
| 90 | +#endif | |
| 91 | + /* Copy context->state[] to working vars */ | |
| 92 | + a = state[0]; | |
| 93 | + b = state[1]; | |
| 94 | + c = state[2]; | |
| 95 | + d = state[3]; | |
| 96 | + e = state[4]; | |
| 97 | + /* 4 rounds of 20 operations each. Loop unrolled. */ | |
| 98 | + 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); | |
| 99 | + 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); | |
| 100 | + 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); | |
| 101 | + 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); | |
| 102 | + 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); | |
| 103 | + 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); | |
| 104 | + 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); | |
| 105 | + 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); | |
| 106 | + 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); | |
| 107 | + 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); | |
| 108 | + 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); | |
| 109 | + 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); | |
| 110 | + 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); | |
| 111 | + 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); | |
| 112 | + 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); | |
| 113 | + 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); | |
| 114 | + 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); | |
| 115 | + 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); | |
| 116 | + 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); | |
| 117 | + 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); | |
| 118 | + /* Add the working vars back into context.state[] */ | |
| 119 | + state[0] += a; | |
| 120 | + state[1] += b; | |
| 121 | + state[2] += c; | |
| 122 | + state[3] += d; | |
| 123 | + state[4] += e; | |
| 124 | + /* Wipe variables */ | |
| 125 | + a = b = c = d = e = 0; | |
| 126 | +#ifdef SHA1HANDSOFF | |
| 127 | + memset(block, '\0', sizeof(block)); | |
| 128 | +#endif | |
| 129 | +} | |
| 130 | + | |
| 131 | + | |
| 132 | +/* SHA1Init - Initialize new context */ | |
| 133 | + | |
| 134 | +void SHA1Init(SHA1_CTX* context) | |
| 135 | +{ | |
| 136 | + /* SHA1 initialization constants */ | |
| 137 | + context->state[0] = 0x67452301; | |
| 138 | + context->state[1] = 0xEFCDAB89; | |
| 139 | + context->state[2] = 0x98BADCFE; | |
| 140 | + context->state[3] = 0x10325476; | |
| 141 | + context->state[4] = 0xC3D2E1F0; | |
| 142 | + context->count[0] = context->count[1] = 0; | |
| 143 | +} | |
| 144 | + | |
| 145 | + | |
| 146 | +/* Run your data through this. */ | |
| 147 | + | |
| 148 | +void SHA1Update(SHA1_CTX* context, const unsigned char* data, u_int32_t len) | |
| 149 | +{ | |
| 150 | +u_int32_t i; | |
| 151 | +u_int32_t j; | |
| 152 | + | |
| 153 | + j = context->count[0]; | |
| 154 | + if ((context->count[0] += len << 3) < j) | |
| 155 | + context->count[1]++; | |
| 156 | + context->count[1] += (len>>29); | |
| 157 | + j = (j >> 3) & 63; | |
| 158 | + if ((j + len) > 63) { | |
| 159 | + memcpy(&context->buffer[j], data, (i = 64-j)); | |
| 160 | + SHA1Transform(context->state, context->buffer); | |
| 161 | + for ( ; i + 63 < len; i += 64) { | |
| 162 | + SHA1Transform(context->state, &data[i]); | |
| 163 | + } | |
| 164 | + j = 0; | |
| 165 | + } | |
| 166 | + else i = 0; | |
| 167 | + memcpy(&context->buffer[j], &data[i], len - i); | |
| 168 | +} | |
| 169 | + | |
| 170 | + | |
| 171 | +/* Add padding and return the message digest. */ | |
| 172 | + | |
| 173 | +void SHA1Final(unsigned char digest[20], SHA1_CTX* context) | |
| 174 | +{ | |
| 175 | +unsigned i; | |
| 176 | +unsigned char finalcount[8]; | |
| 177 | +unsigned char c; | |
| 178 | + | |
| 179 | +#if 0 /* untested "improvement" by DHR */ | |
| 180 | + /* Convert context->count to a sequence of bytes | |
| 181 | + * in finalcount. Second element first, but | |
| 182 | + * big-endian order within element. | |
| 183 | + * But we do it all backwards. | |
| 184 | + */ | |
| 185 | + unsigned char *fcp = &finalcount[8]; | |
| 186 | + | |
| 187 | + for (i = 0; i < 2; i++) | |
| 188 | + { | |
| 189 | + u_int32_t t = context->count[i]; | |
| 190 | + int j; | |
| 191 | + | |
| 192 | + for (j = 0; j < 4; t >>= 8, j++) | |
| 193 | + *--fcp = (unsigned char) t | |
| 194 | + } | |
| 195 | +#else | |
| 196 | + for (i = 0; i < 8; i++) { | |
| 197 | + finalcount[i] = (unsigned char)((context->count[(i >= 4 ? 0 : 1)] | |
| 198 | + >> ((3-(i & 3)) * 8) ) & 255); /* Endian independent */ | |
| 199 | + } | |
| 200 | +#endif | |
| 201 | + c = 0200; | |
| 202 | + SHA1Update(context, &c, 1); | |
| 203 | + while ((context->count[0] & 504) != 448) { | |
| 204 | + c = 0000; | |
| 205 | + SHA1Update(context, &c, 1); | |
| 206 | + } | |
| 207 | + SHA1Update(context, finalcount, 8); /* Should cause a SHA1Transform() */ | |
| 208 | + for (i = 0; i < 20; i++) { | |
| 209 | + digest[i] = (unsigned char) | |
| 210 | + ((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255); | |
| 211 | + } | |
| 212 | + /* Wipe variables */ | |
| 213 | + memset(context, '\0', sizeof(*context)); | |
| 214 | + memset(&finalcount, '\0', sizeof(finalcount)); | |
| 215 | +} | |
| 216 | +/* ================ end of sha1.c ================ */ | |
| 217 | + | |
| 218 | +#define BUFSIZE 4096 | |
| 219 | + | |
| 220 | +int | |
| 221 | +main(int argc, char **argv) | |
| 222 | +{ | |
| 223 | + SHA1_CTX ctx; | |
| 224 | + unsigned char hash[20], buf[BUFSIZE]; | |
| 225 | + int i; | |
| 226 | + | |
| 227 | + for(i=0;i<BUFSIZE;i++) | |
| 228 | + buf[i] = i; | |
| 229 | + | |
| 230 | + SHA1Init(&ctx); | |
| 231 | + for(i=0;i<1000;i++) | |
| 232 | + SHA1Update(&ctx, buf, BUFSIZE); | |
| 233 | + SHA1Final(hash, &ctx); | |
| 234 | + | |
| 235 | + printf("SHA1="); | |
| 236 | + for(i=0;i<20;i++) | |
| 237 | + printf("%02x", hash[i]); | |
| 238 | + printf("\n"); | |
| 239 | + return 0; | |
| 240 | +} | |
| 241 | + | |
| 242 | + | ... | ... |