/* Hash a single 512-bit block. This is the core of the algorithm. */
-void SHA1Transform(uint32_t state[5], const unsigned char buffer[64])
+void SHA1Transform (uint32_t state[5], const unsigned char buffer[64])
{
-uint32_t a, b, c, d, e;
-typedef union {
+ uint32_t a, b, c, d, e;
+ typedef union {
unsigned char c[64];
uint32_t l[16];
-} CHAR64LONG16;
+ } CHAR64LONG16;
+
#ifdef SHA1HANDSOFF
-CHAR64LONG16 block[1]; /* use array to appear as a pointer */
- memcpy(block, buffer, 64);
+ CHAR64LONG16 block[1]; /* use array to appear as a pointer */
+
+ memcpy (block, buffer, 64);
#else
- /* The following had better never be used because it causes the
- * pointer-to-const buffer to be cast into a pointer to non-const.
- * And the result is written through. I threw a "const" in, hoping
- * this will cause a diagnostic.
- */
-CHAR64LONG16* block = (const CHAR64LONG16*)buffer;
+ /* The following had better never be used because it causes the
+ * pointer-to-const buffer to be cast into a pointer to non-const.
+ * And the result is written through. I threw a "const" in, hoping
+ * this will cause a diagnostic.
+ */
+ CHAR64LONG16 *block = (const 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;
+ /* 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;
#ifdef SHA1HANDSOFF
- memset(block, '\0', sizeof(block));
+ memset (block, '\0', sizeof (block));
#endif
}
/* SHA1Init - Initialize new context */
-void SHA1Init(SHA1_CTX* 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;
+ /* 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, const unsigned char* data, uint32_t len)
+void SHA1Update (SHA1_CTX * context, const unsigned char *data, uint32_t len)
{
-uint32_t i;
-uint32_t j;
-
- j = context->count[0];
- if ((context->count[0] += len << 3) < j)
- context->count[1]++;
- context->count[1] += (len>>29);
- j = (j >> 3) & 63;
- 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;
+ uint32_t i;
+ uint32_t j;
+
+ j = context->count[0];
+ if ((context->count[0] += len << 3) < j)
+ context->count[1]++;
+ context->count[1] += (len >> 29);
+ j = (j >> 3) & 63;
+ 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]);
}
- else i = 0;
- memcpy(&context->buffer[j], &data[i], len - i);
+ j = 0;
+ }
+ else
+ i = 0;
+ memcpy (&context->buffer[j], &data[i], len - i);
}
/* Add padding and return the message digest. */
-void SHA1Final(unsigned char digest[20], SHA1_CTX* context)
+void SHA1Final (unsigned char digest[20], SHA1_CTX * context)
{
-unsigned i;
-unsigned char finalcount[8];
-unsigned char c;
-
-#if 0 /* untested "improvement" by DHR */
- /* Convert context->count to a sequence of bytes
- * in finalcount. Second element first, but
- * big-endian order within element.
- * But we do it all backwards.
- */
- unsigned char *fcp = &finalcount[8];
-
- for (i = 0; i < 2; i++)
- {
- uint32_t t = context->count[i];
- int j;
-
- for (j = 0; j < 4; t >>= 8, j++)
- *--fcp = (unsigned char) t
- }
-#else
- for (i = 0; i < 8; i++) {
- finalcount[i] = (unsigned char)((context->count[(i >= 4 ? 0 : 1)]
- >> ((3-(i & 3)) * 8) ) & 255); /* Endian independent */
- }
-#endif
- c = 0200;
- SHA1Update(context, &c, 1);
- while ((context->count[0] & 504) != 448) {
- c = 0000;
- SHA1Update(context, &c, 1);
- }
- SHA1Update(context, finalcount, 8); /* Should cause a SHA1Transform() */
- for (i = 0; i < 20; i++) {
- digest[i] = (unsigned char)
- ((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255);
- }
- /* Wipe variables */
- memset(context, '\0', sizeof(*context));
- memset(&finalcount, '\0', sizeof(finalcount));
+ unsigned i;
+ unsigned char finalcount[8];
+ unsigned char c;
+
+ for (i = 0; i < 8; i++) {
+ finalcount[i] = (unsigned char) ((context->count[(i >= 4 ? 0 : 1)]
+ >> ((3 - (i & 3)) * 8)) & 255); /* Endian independent */
+ }
+ c = 0200;
+ SHA1Update (context, &c, 1);
+ while ((context->count[0] & 504) != 448) {
+ c = 0000;
+ SHA1Update (context, &c, 1);
+ }
+ SHA1Update (context, finalcount, 8); /* Should cause a SHA1Transform() */
+ for (i = 0; i < 20; i++) {
+ digest[i] = (unsigned char)
+ ((context->state[i >> 2] >> ((3 - (i & 3)) * 8)) & 255);
+ }
+ /* Wipe variables */
+ memset (context, '\0', sizeof (*context));
+ memset (&finalcount, '\0', sizeof (finalcount));
}
projects / apps / madmutt.git / blobdiff