diff options
author | Simon Quigley <tsimonq2@ubuntu.com> | 2017-06-19 15:19:47 -0500 |
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committer | Simon Quigley <tsimonq2@ubuntu.com> | 2017-06-19 15:19:47 -0500 |
commit | 7aacc9f2510901c9e97b30fa9bcb550bb7f99c03 (patch) | |
tree | 16908948750c11da8332d80d8bb9b339399ee4d7 /modules/benchmark/sha1.c | |
parent | 7c47b5b9584f5011aeba18d7e1b26b3d3124825f (diff) |
New upstream version 0.5.1+git20170605
Diffstat (limited to 'modules/benchmark/sha1.c')
-rw-r--r-- | modules/benchmark/sha1.c | 329 |
1 files changed, 329 insertions, 0 deletions
diff --git a/modules/benchmark/sha1.c b/modules/benchmark/sha1.c new file mode 100644 index 00000000..b94ce254 --- /dev/null +++ b/modules/benchmark/sha1.c @@ -0,0 +1,329 @@ +/* +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 +*/ + + +/* #define SHA1HANDSOFF * Copies data before messing with it. */ + +#include <stdio.h> +#include <string.h> +#include <sha1.h> + +#if defined(__OPTIMIZE__) +#error You must compile this program without "-O". +#endif + + +#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 */ +#ifdef LITTLE_ENDIAN +#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 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); + + +/* Hash a single 512-bit block. This is the core of the algorithm. */ + +void SHA1Transform(guint32 state[5], guchar buffer[64]) +{ + guint32 a, b, c, d, e; + typedef union { + guchar c[64]; + guint32 l[16]; + } CHAR64LONG16; + CHAR64LONG16 *block; +#ifdef SHA1HANDSOFF + static guchar workspace[64]; + block = (CHAR64LONG16 *) workspace; + memcpy(block, buffer, 64); +#else + block = (CHAR64LONG16 *) buffer; +#endif + /* Copy context->state[] to working vars */ + a = state[0]; + b = state[1]; + c = state[2]; + d = state[3]; + e = state[4]; + /* 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); + /* 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; +} + + +/* SHA1Init - Initialize new context */ + +void SHA1Init(SHA1_CTX * context) +{ + /* 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] = context->count[1] = 0; +} + + +/* Run your data through this. */ + +void SHA1Update(SHA1_CTX * context, guchar * data, guint32 len) +{ + guint32 i, j; + + j = (context->count[0] >> 3) & 63; + if ((context->count[0] += len << 3) < (len << 3)) + context->count[1]++; + context->count[1] += (len >> 29); + if ((j + len) > 63) { + memcpy(&context->buffer[j], data, (i = 64 - j)); + SHA1Transform(context->state, context->buffer); + for (; i + 63 < len; i += 64) { + SHA1Transform(context->state, &data[i]); + } + j = 0; + } else + i = 0; + memcpy(&context->buffer[j], &data[i], len - i); +} + + +/* Add padding and return the message digest. */ + +void SHA1Final(guchar digest[20], SHA1_CTX * context) +{ + guint32 i, j; + guchar finalcount[8]; + + for (i = 0; i < 8; i++) { + finalcount[i] = (guchar) ((context->count[(i >= 4 ? 0 : 1)] + >> ((3 - (i & 3)) * 8)) & 255); /* Endian independent */ + } + SHA1Update(context, (guchar *) "\200", 1); + while ((context->count[0] & 504) != 448) { + SHA1Update(context, (guchar *) "\0", 1); + } + SHA1Update(context, finalcount, 8); /* Should cause a SHA1Transform() */ + for (i = 0; i < 20; i++) { + digest[i] = (guchar) + ((context->state[i >> 2] >> ((3 - (i & 3)) * 8)) & 255); + } + /* Wipe variables */ + i = j = 0; + memset(context->buffer, 0, 64); + memset(context->state, 0, 20); + memset(context->count, 0, 8); + memset(&finalcount, 0, 8); +#ifdef SHA1HANDSOFF /* make SHA1Transform overwrite it's own static vars */ + SHA1Transform(context->state, context->buffer); +#endif +} + +#ifdef SHA1_TEST +static char *b32_alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567"; + +static void base32_encode_exactly(guchar * buf, gint len, + guchar * encbuf, gint enclen) +{ + gint i = 0; + guchar *ip = buf + len; + guchar *op = encbuf + enclen; + + switch (len % 5) { + case 0: + do { + g_assert(op - encbuf >= 8); + i = *--ip; /* Input #4 */ + *--op = b32_alphabet[i & 0x1f]; /* Ouput #7 */ + i >>= 5; /* upper <234>, input #4 */ + /* FALLTHROUGH */ + case 4: + i |= ((guint32) * --ip) << 3; /* had 3 bits in `i' */ + *--op = b32_alphabet[i & 0x1f]; /* Output #6 */ + i >>= 5; /* upper <401234>, input #3 */ + *--op = b32_alphabet[i & 0x1f]; /* Output #5 */ + i >>= 5; /* upper <4>, input #3 */ + /* FALLTHROUGH */ + case 3: + i |= ((guint32) * --ip) << 1; /* had 1 bits in `i' */ + *--op = b32_alphabet[i & 0x1f]; /* Output #4 */ + i >>= 5; /* upper <1234>, input #2 */ + /* FALLTHROUGH */ + case 2: + i |= ((guint32) * --ip) << 4; /* had 4 bits in `i' */ + *--op = b32_alphabet[i & 0x1f]; /* Output #3 */ + i >>= 5; /* upper <3401234>, input #1 */ + *--op = b32_alphabet[i & 0x1f]; /* Output #2 */ + i >>= 5; /* upper <34>, input #1 */ + /* FALLTHROUGH */ + case 1: + i |= ((guint32) * --ip) << 2; /* had 2 bits in `i' */ + *--op = b32_alphabet[i & 0x1f]; /* Output #1 */ + i >>= 5; /* upper <01234>, input #0 */ + *--op = b32_alphabet[i & 0x1f]; /* Output #0 */ + i >>= 5; /* Holds nothing, MBZ */ + g_assert(i == 0); + g_assert(op >= encbuf); + } while (op > encbuf); + } +} + + + +/*************************************************************/ + +int main(int argc, char **argv) +{ + gint i, j; + SHA1_CTX context; + guchar digest[20], buffer[16384]; + FILE *file; + + if (argc > 2) { + puts("Public domain SHA-1 implementation - by Steve Reid <steve@edmweb.com>"); + puts("Produces the SHA-1 hash of a file, or stdin if no file is specified."); + exit(0); + } + if (argc < 2) { + file = stdin; + } else { + if (!(file = fopen(argv[1], "rb"))) { + fputs("Unable to open file.", stderr); + exit(-1); + } + } + SHA1Init(&context); + while (!feof(file)) { /* note: what if ferror(file) */ + i = fread(buffer, 1, 16384, file); + SHA1Update(&context, buffer, i); + } + SHA1Final(digest, &context); + fclose(file); + + for (i = 0; i < 5; i++) { + for (j = 0; j < 4; j++) { + printf("%02X", digest[i*4+j]); + } + putchar(' '); + } + putchar('\n'); + + { + guchar tmp[33]; + tmp[32] = '\0'; + base32_encode_exactly(digest, 20, tmp, 32); + printf("%s\n", tmp); + } + + exit(0); +} +#endif /* SHA1_TEST */ |