sha256 functions moved to the core

git-svn-id: http://svn.miranda-ng.org/main/trunk@15137 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c

1 files changed, 2 insertions, 306 deletions

diff --git a/src/core/stdcrypt/src/utils.cpp b/src/core/stdcrypt/src/utils.cpp
index 3136dd7e7e..ebe51f90fa 100644
--- a/src/core/stdcrypt/src/utils.cpp
+++ b/src/core/stdcrypt/src/utils.cpp
@@ -46,314 +46,10 @@ bool getRandomBytes(BYTE *buf, size_t bufLen)
 	return true;

 }

 

-/////////////////////////////////////////////////////////////////////////////////////////

-

-struct SHA256_CONTEXT

-{

-	UINT32  h0, h1, h2, h3, h4, h5, h6, h7;

-	UINT32  nblocks;

-	BYTE buf[64];

-	int  count;

-};

-

-static void sha256_init(SHA256_CONTEXT *hd)

-{

-	hd->h0 = 0x6a09e667;

-	hd->h1 = 0xbb67ae85;

-	hd->h2 = 0x3c6ef372;

-	hd->h3 = 0xa54ff53a;

-	hd->h4 = 0x510e527f;

-	hd->h5 = 0x9b05688c;

-	hd->h6 = 0x1f83d9ab;

-	hd->h7 = 0x5be0cd19;

-

-	hd->nblocks = 0;

-	hd->count = 0;

-}

-

-/*

-Transform the message X which consists of 16 32-bit-words. See FIPS

-180-2 for details.  */

-#define ror(x,n) ( ((x) >> (n)) | ((x) << (32-(n))) )

-#define S0(x) (ror ((x), 7) ^ ror ((x), 18) ^ ((x) >> 3))       /* (4.6) */

-#define S1(x) (ror ((x), 17) ^ ror ((x), 19) ^ ((x) >> 10))     /* (4.7) */

-#define R(a,b,c,d,e,f,g,h,k,w) do                                 \

-{                                                       \

-	t1 = (h)+Sum1((e)) + Cho((e), (f), (g)) + (k)+(w);  \

-	t2 = Sum0((a)) + Maj((a), (b), (c));                    \

-	h = g;                                                \

-	g = f;                                                \

-	f = e;                                                \

-	e = d + t1;                                           \

-	d = c;                                                \

-	c = b;                                                \

-	b = a;                                                \

-	a = t1 + t2;                                          \

-} while (0)

-

-/* (4.2) same as SHA-1's F1.  */

-static inline UINT32

-Cho(UINT32 x, UINT32 y, UINT32 z)

-{

-	return (z ^ (x & (y ^ z)));

-}

-

-/* (4.3) same as SHA-1's F3 */

-static inline UINT32

-Maj(UINT32 x, UINT32 y, UINT32 z)

-{

-	return ((x & y) | (z & (x | y)));

-}

-

-/* (4.4) */

-static inline UINT32 Sum0(UINT32 x)

-{

-	return (ror(x, 2) ^ ror(x, 13) ^ ror(x, 22));

-}

-

-/* (4.5) */

-static inline UINT32

-Sum1(UINT32 x)

-{

-	return (ror(x, 6) ^ ror(x, 11) ^ ror(x, 25));

-}

-

-

-static void transform(SHA256_CONTEXT *hd, const unsigned char *data)

-{

-	static const UINT32 K[64] = {

-		0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,

-		0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,

-		0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,

-		0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,

-		0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,

-		0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,

-		0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,

-		0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,

-		0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,

-		0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,

-		0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,

-		0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,

-		0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,

-		0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,

-		0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,

-		0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2

-	};

-

-	UINT32 a, b, c, d, e, f, g, h, t1, t2;

-	UINT32 x[16];

-	UINT32 w[64];

-	int i;

-

-	a = hd->h0;

-	b = hd->h1;

-	c = hd->h2;

-	d = hd->h3;

-	e = hd->h4;

-	f = hd->h5;

-	g = hd->h6;

-	h = hd->h7;

-

-#ifdef WORDS_BIGENDIAN

-	memcpy(x, data, 64);

-#else

-	{

-		BYTE *p2;

-

-		for (i = 0, p2 = (BYTE*)x; i < 16; i++, p2 += 4) {

-			p2[3] = *data++;

-			p2[2] = *data++;

-			p2[1] = *data++;

-			p2[0] = *data++;

-		}

-	}

-#endif

-

-	for (i = 0; i < 16; i++)

-		w[i] = x[i];

-	for (; i < 64; i++)

-		w[i] = S1(w[i - 2]) + w[i - 7] + S0(w[i - 15]) + w[i - 16];

-

-	for (i = 0; i < 64;)

-	{

-#if 0

-		R(a, b, c, d, e, f, g, h, K[i], w[i]);

-		i++;

-#else

-		t1 = h + Sum1(e) + Cho(e, f, g) + K[i] + w[i];

-		t2 = Sum0(a) + Maj(a, b, c);

-		d += t1;

-		h = t1 + t2;

-

-		t1 = g + Sum1(d) + Cho(d, e, f) + K[i + 1] + w[i + 1];

-		t2 = Sum0(h) + Maj(h, a, b);

-		c += t1;

-		g = t1 + t2;

-

-		t1 = f + Sum1(c) + Cho(c, d, e) + K[i + 2] + w[i + 2];

-		t2 = Sum0(g) + Maj(g, h, a);

-		b += t1;

-		f = t1 + t2;

-

-		t1 = e + Sum1(b) + Cho(b, c, d) + K[i + 3] + w[i + 3];

-		t2 = Sum0(f) + Maj(f, g, h);

-		a += t1;

-		e = t1 + t2;

-

-		t1 = d + Sum1(a) + Cho(a, b, c) + K[i + 4] + w[i + 4];

-		t2 = Sum0(e) + Maj(e, f, g);

-		h += t1;

-		d = t1 + t2;

-

-		t1 = c + Sum1(h) + Cho(h, a, b) + K[i + 5] + w[i + 5];

-		t2 = Sum0(d) + Maj(d, e, f);

-		g += t1;

-		c = t1 + t2;

-

-		t1 = b + Sum1(g) + Cho(g, h, a) + K[i + 6] + w[i + 6];

-		t2 = Sum0(c) + Maj(c, d, e);

-		f += t1;

-		b = t1 + t2;

-

-		t1 = a + Sum1(f) + Cho(f, g, h) + K[i + 7] + w[i + 7];

-		t2 = Sum0(b) + Maj(b, c, d);

-		e += t1;

-		a = t1 + t2;

-

-		i += 8;

-#endif

-	}

-

-	hd->h0 += a;

-	hd->h1 += b;

-	hd->h2 += c;

-	hd->h3 += d;

-	hd->h4 += e;

-	hd->h5 += f;

-	hd->h6 += g;

-	hd->h7 += h;

-}

-#undef S0

-#undef S1

-#undef R

-

-

-/* Update the message digest with the contents of INBUF with length

-INLEN.  */

-static void sha256_write(SHA256_CONTEXT *hd, const void *inbuf_arg, size_t inlen)

-{

-	const unsigned char *inbuf = (const unsigned char *)inbuf_arg;

-

-	if (hd->count == 64)

-	{ /* flush the buffer */

-		transform(hd, hd->buf);

-		hd->count = 0;

-		hd->nblocks++;

-	}

-	if (!inbuf)

-		return;

-	if (hd->count)

-	{

-		for (; inlen && hd->count < 64; inlen--)

-			hd->buf[hd->count++] = *inbuf++;

-		sha256_write(hd, NULL, 0);

-		if (!inlen)

-			return;

-	}

-

-	while (inlen >= 64)

-	{

-		transform(hd, inbuf);

-		hd->count = 0;

-		hd->nblocks++;

-		inlen -= 64;

-		inbuf += 64;

-	}

-	for (; inlen && hd->count < 64; inlen--)

-		hd->buf[hd->count++] = *inbuf++;

-}

-

-

-/*

-The routine finally terminates the computation and returns the

-digest.  The handle is prepared for a new cycle, but adding bytes

-to the handle will the destroy the returned buffer.  Returns: 32

-bytes with the message the digest.  */

-static void sha256_final(SHA256_CONTEXT *hd, BYTE tmpHash[32])

-{

-	UINT32 t, msb, lsb;

-

-	sha256_write(hd, NULL, 0); /* flush */;

-

-	t = hd->nblocks;

-	/* multiply by 64 to make a BYTE count */

-	lsb = t << 6;

-	msb = t >> 26;

-	/* add the count */

-	t = lsb;

-	if ((lsb += hd->count) < t)

-		msb++;

-	/* multiply by 8 to make a bit count */

-	t = lsb;

-	lsb <<= 3;

-	msb <<= 3;

-	msb |= t >> 29;

-

-	if (hd->count < 56)

-	{ /* enough room */

-		hd->buf[hd->count++] = 0x80; /* pad */

-		while (hd->count < 56)

-			hd->buf[hd->count++] = 0;  /* pad */

-	}

-	else

-	{ /* need one extra block */

-		hd->buf[hd->count++] = 0x80; /* pad character */

-		while (hd->count < 64)

-			hd->buf[hd->count++] = 0;

-		sha256_write(hd, NULL, 0);  /* flush */;

-		memset(hd->buf, 0, 56); /* fill next block with zeroes */

-	}

-	/* append the 64 bit count */

-	hd->buf[56] = msb >> 24;

-	hd->buf[57] = msb >> 16;

-	hd->buf[58] = msb >> 8;

-	hd->buf[59] = msb;

-	hd->buf[60] = lsb >> 24;

-	hd->buf[61] = lsb >> 16;

-	hd->buf[62] = lsb >> 8;

-	hd->buf[63] = lsb;

-	transform(hd, hd->buf);

-

-	BYTE *p = tmpHash;

-#ifdef WORDS_BIGENDIAN

-#define X(a) do { *(UINT32*)p = hd->h##a ; p += 4; } while(0)

-#else /* little endian */

-#define X(a) do { *p++ = hd->h##a >> 24; *p++ = hd->h##a >> 16;	 \

-	*p++ = hd->h##a >> 8; *p++ = hd->h##a; } while (0)

-#endif

-	X(0);

-	X(1);

-	X(2);

-	X(3);

-	X(4);

-	X(5);

-	X(6);

-	X(7);

-#undef X

-}

-

-static void make_sha256(const void *buf, size_t bufLen, BYTE *tmpHash)

-{

-	SHA256_CONTEXT tmp;

-	sha256_init(&tmp);

-	sha256_write(&tmp, buf, bufLen);

-	sha256_final(&tmp, tmpHash);

-}

-

 void slow_hash(const void *buf, size_t bufLen, BYTE* tmpHash)

 {

-	make_sha256(buf, bufLen, tmpHash);

+	mir_sha256_hash(buf, bufLen, tmpHash);

 

 	for (int i = 0; i < 50000; i++)

-		make_sha256(tmpHash, 32, tmpHash);

+		mir_sha256_hash(tmpHash, 32, tmpHash);

 }