Adding upstream version 1:2.0.27.upstream/1%2.0.27upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 368 insertions, 0 deletions

diff --git a/util_lib/sha256.c b/util_lib/sha256.c
new file mode 100644
index 0000000..2e61a31
--- /dev/null
+++ b/util_lib/sha256.c
@@ -0,0 +1,368 @@
+/*
+ *  FIPS-180-2 compliant SHA-256 implementation
+ *
+ *  Copyright (C) 2001-2003  Christophe Devine
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <string.h>
+
+#include "sha256.h"
+
+#define GET_UINT32(n,b,i)                            \
+{                                                    \
+	(n) = 	( (uint32_t) (b)[(i)    ] << 24 ) |  \
+		( (uint32_t) (b)[(i) + 1] << 16 ) |  \
+		( (uint32_t) (b)[(i) + 2] <<  8 ) |  \
+		( (uint32_t) (b)[(i) + 3]       );   \
+}
+
+#define PUT_UINT32(n,b,i)                       \
+{                                               \
+	(b)[(i)    ] = (uint8_t) ( (n) >> 24 ); \
+	(b)[(i) + 1] = (uint8_t) ( (n) >> 16 ); \
+	(b)[(i) + 2] = (uint8_t) ( (n) >>  8 ); \
+	(b)[(i) + 3] = (uint8_t) ( (n)       ); \
+}
+
+void sha256_starts( sha256_context *ctx )
+{
+	ctx->total[0] = 0;
+	ctx->total[1] = 0;
+
+	ctx->state[0] = 0x6A09E667;
+	ctx->state[1] = 0xBB67AE85;
+	ctx->state[2] = 0x3C6EF372;
+	ctx->state[3] = 0xA54FF53A;
+	ctx->state[4] = 0x510E527F;
+	ctx->state[5] = 0x9B05688C;
+	ctx->state[6] = 0x1F83D9AB;
+	ctx->state[7] = 0x5BE0CD19;
+}
+
+void sha256_process( sha256_context *ctx, const uint8_t data[64] )
+{
+	uint32_t temp1, temp2, W[64];
+	uint32_t A, B, C, D, E, F, G, H;
+
+	GET_UINT32( W[0],  data,  0 );
+	GET_UINT32( W[1],  data,  4 );
+	GET_UINT32( W[2],  data,  8 );
+	GET_UINT32( W[3],  data, 12 );
+	GET_UINT32( W[4],  data, 16 );
+	GET_UINT32( W[5],  data, 20 );
+	GET_UINT32( W[6],  data, 24 );
+	GET_UINT32( W[7],  data, 28 );
+	GET_UINT32( W[8],  data, 32 );
+	GET_UINT32( W[9],  data, 36 );
+	GET_UINT32( W[10], data, 40 );
+	GET_UINT32( W[11], data, 44 );
+	GET_UINT32( W[12], data, 48 );
+	GET_UINT32( W[13], data, 52 );
+	GET_UINT32( W[14], data, 56 );
+	GET_UINT32( W[15], data, 60 );
+
+#define  SHR(x,n) ((x & 0xFFFFFFFF) >> n)
+#define ROTR(x,n) (SHR(x,n) | (x << (32 - n)))
+
+#define S0(x) (ROTR(x, 7) ^ ROTR(x,18) ^  SHR(x, 3))
+#define S1(x) (ROTR(x,17) ^ ROTR(x,19) ^  SHR(x,10))
+
+#define S2(x) (ROTR(x, 2) ^ ROTR(x,13) ^ ROTR(x,22))
+#define S3(x) (ROTR(x, 6) ^ ROTR(x,11) ^ ROTR(x,25))
+
+#define F0(x,y,z) ((x & y) | (z & (x | y)))
+#define F1(x,y,z) (z ^ (x & (y ^ z)))
+
+#define R(t)                                    \
+(                                               \
+	W[t] = S1(W[t -  2]) + W[t -  7] +      \
+		S0(W[t - 15]) + W[t - 16]       \
+)
+
+#define P(a,b,c,d,e,f,g,h,x,K)                  \
+{                                               \
+	temp1 = h + S3(e) + F1(e,f,g) + K + x;  \
+	temp2 = S2(a) + F0(a,b,c);              \
+	d += temp1; h = temp1 + temp2;          \
+}
+
+	A = ctx->state[0];
+	B = ctx->state[1];
+	C = ctx->state[2];
+	D = ctx->state[3];
+	E = ctx->state[4];
+	F = ctx->state[5];
+	G = ctx->state[6];
+	H = ctx->state[7];
+
+	P( A, B, C, D, E, F, G, H, W[ 0], 0x428A2F98 );
+	P( H, A, B, C, D, E, F, G, W[ 1], 0x71374491 );
+	P( G, H, A, B, C, D, E, F, W[ 2], 0xB5C0FBCF );
+	P( F, G, H, A, B, C, D, E, W[ 3], 0xE9B5DBA5 );
+	P( E, F, G, H, A, B, C, D, W[ 4], 0x3956C25B );
+	P( D, E, F, G, H, A, B, C, W[ 5], 0x59F111F1 );
+	P( C, D, E, F, G, H, A, B, W[ 6], 0x923F82A4 );
+	P( B, C, D, E, F, G, H, A, W[ 7], 0xAB1C5ED5 );
+	P( A, B, C, D, E, F, G, H, W[ 8], 0xD807AA98 );
+	P( H, A, B, C, D, E, F, G, W[ 9], 0x12835B01 );
+	P( G, H, A, B, C, D, E, F, W[10], 0x243185BE );
+	P( F, G, H, A, B, C, D, E, W[11], 0x550C7DC3 );
+	P( E, F, G, H, A, B, C, D, W[12], 0x72BE5D74 );
+	P( D, E, F, G, H, A, B, C, W[13], 0x80DEB1FE );
+	P( C, D, E, F, G, H, A, B, W[14], 0x9BDC06A7 );
+	P( B, C, D, E, F, G, H, A, W[15], 0xC19BF174 );
+	P( A, B, C, D, E, F, G, H, R(16), 0xE49B69C1 );
+	P( H, A, B, C, D, E, F, G, R(17), 0xEFBE4786 );
+	P( G, H, A, B, C, D, E, F, R(18), 0x0FC19DC6 );
+	P( F, G, H, A, B, C, D, E, R(19), 0x240CA1CC );
+	P( E, F, G, H, A, B, C, D, R(20), 0x2DE92C6F );
+	P( D, E, F, G, H, A, B, C, R(21), 0x4A7484AA );
+	P( C, D, E, F, G, H, A, B, R(22), 0x5CB0A9DC );
+	P( B, C, D, E, F, G, H, A, R(23), 0x76F988DA );
+	P( A, B, C, D, E, F, G, H, R(24), 0x983E5152 );
+	P( H, A, B, C, D, E, F, G, R(25), 0xA831C66D );
+	P( G, H, A, B, C, D, E, F, R(26), 0xB00327C8 );
+	P( F, G, H, A, B, C, D, E, R(27), 0xBF597FC7 );
+	P( E, F, G, H, A, B, C, D, R(28), 0xC6E00BF3 );
+	P( D, E, F, G, H, A, B, C, R(29), 0xD5A79147 );
+	P( C, D, E, F, G, H, A, B, R(30), 0x06CA6351 );
+	P( B, C, D, E, F, G, H, A, R(31), 0x14292967 );
+	P( A, B, C, D, E, F, G, H, R(32), 0x27B70A85 );
+	P( H, A, B, C, D, E, F, G, R(33), 0x2E1B2138 );
+	P( G, H, A, B, C, D, E, F, R(34), 0x4D2C6DFC );
+	P( F, G, H, A, B, C, D, E, R(35), 0x53380D13 );
+	P( E, F, G, H, A, B, C, D, R(36), 0x650A7354 );
+	P( D, E, F, G, H, A, B, C, R(37), 0x766A0ABB );
+	P( C, D, E, F, G, H, A, B, R(38), 0x81C2C92E );
+	P( B, C, D, E, F, G, H, A, R(39), 0x92722C85 );
+	P( A, B, C, D, E, F, G, H, R(40), 0xA2BFE8A1 );
+	P( H, A, B, C, D, E, F, G, R(41), 0xA81A664B );
+	P( G, H, A, B, C, D, E, F, R(42), 0xC24B8B70 );
+	P( F, G, H, A, B, C, D, E, R(43), 0xC76C51A3 );
+	P( E, F, G, H, A, B, C, D, R(44), 0xD192E819 );
+	P( D, E, F, G, H, A, B, C, R(45), 0xD6990624 );
+	P( C, D, E, F, G, H, A, B, R(46), 0xF40E3585 );
+	P( B, C, D, E, F, G, H, A, R(47), 0x106AA070 );
+	P( A, B, C, D, E, F, G, H, R(48), 0x19A4C116 );
+	P( H, A, B, C, D, E, F, G, R(49), 0x1E376C08 );
+	P( G, H, A, B, C, D, E, F, R(50), 0x2748774C );
+	P( F, G, H, A, B, C, D, E, R(51), 0x34B0BCB5 );
+	P( E, F, G, H, A, B, C, D, R(52), 0x391C0CB3 );
+	P( D, E, F, G, H, A, B, C, R(53), 0x4ED8AA4A );
+	P( C, D, E, F, G, H, A, B, R(54), 0x5B9CCA4F );
+	P( B, C, D, E, F, G, H, A, R(55), 0x682E6FF3 );
+	P( A, B, C, D, E, F, G, H, R(56), 0x748F82EE );
+	P( H, A, B, C, D, E, F, G, R(57), 0x78A5636F );
+	P( G, H, A, B, C, D, E, F, R(58), 0x84C87814 );
+	P( F, G, H, A, B, C, D, E, R(59), 0x8CC70208 );
+	P( E, F, G, H, A, B, C, D, R(60), 0x90BEFFFA );
+	P( D, E, F, G, H, A, B, C, R(61), 0xA4506CEB );
+	P( C, D, E, F, G, H, A, B, R(62), 0xBEF9A3F7 );
+	P( B, C, D, E, F, G, H, A, R(63), 0xC67178F2 );
+
+	ctx->state[0] += A;
+	ctx->state[1] += B;
+	ctx->state[2] += C;
+	ctx->state[3] += D;
+	ctx->state[4] += E;
+	ctx->state[5] += F;
+	ctx->state[6] += G;
+	ctx->state[7] += H;
+}
+
+void sha256_update( sha256_context *ctx, const uint8_t *input, size_t length )
+{
+	size_t left, fill;
+
+	if( ! length ) return;
+
+	left = ctx->total[0] & 0x3F;
+	fill = 64 - left;
+
+	ctx->total[0] += length;
+	ctx->total[0] &= 0xFFFFFFFF;
+
+	if( ctx->total[0] < length )
+		ctx->total[1]++;
+
+	if( left && length >= fill )
+	{
+		memcpy( ctx->buffer + left, input, fill );
+		sha256_process( ctx, ctx->buffer );
+		length -= fill;
+		input  += fill;
+		left = 0;
+	}
+
+	while( length >= 64 )
+	{
+		sha256_process( ctx, input );
+		length -= 64;
+		input  += 64;
+	}
+
+	if( length )
+	{
+		memcpy(ctx->buffer + left, input, length);
+	}
+}
+
+static uint8_t sha256_padding[64] =
+{
+ 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+void sha256_finish( sha256_context *ctx, sha256_digest_t digest )
+{
+	uint32_t last, padn;
+	uint32_t high, low;
+	uint8_t msglen[8];
+
+	high = ( ctx->total[0] >> 29 )
+		| ( ctx->total[1] <<  3 );
+	low  = ( ctx->total[0] <<  3 );
+
+	PUT_UINT32( high, msglen, 0 );
+	PUT_UINT32( low,  msglen, 4 );
+
+	last = ctx->total[0] & 0x3F;
+	padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
+
+	sha256_update( ctx, sha256_padding, padn );
+	sha256_update( ctx, msglen, 8 );
+
+	PUT_UINT32( ctx->state[0], digest,  0 );
+	PUT_UINT32( ctx->state[1], digest,  4 );
+	PUT_UINT32( ctx->state[2], digest,  8 );
+	PUT_UINT32( ctx->state[3], digest, 12 );
+	PUT_UINT32( ctx->state[4], digest, 16 );
+	PUT_UINT32( ctx->state[5], digest, 20 );
+	PUT_UINT32( ctx->state[6], digest, 24 );
+	PUT_UINT32( ctx->state[7], digest, 28 );
+}
+
+#ifdef TEST
+
+#include <stdlib.h>
+#include <stdio.h>
+
+/*
+ * those are the standard FIPS-180-2 test vectors
+ */
+
+static char *msg[] = 
+{
+	"abc",
+	"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
+	NULL
+};
+
+static char *val[] =
+{
+	"ba7816bf8f01cfea414140de5dae2223" \
+	"b00361a396177a9cb410ff61f20015ad",
+	"248d6a61d20638b8e5c026930c3e6039" \
+	"a33ce45964ff2167f6ecedd419db06c1",
+	"cdc76e5c9914fb9281a1c7e284d73e67" \
+	"f1809a48a497200e046d39ccc7112cd0"
+};
+
+int main( int argc, char *argv[] )
+{
+	FILE *f;
+	int i, j;
+	char output[65];
+	sha256_context ctx;
+	unsigned char buf[1000];
+	unsigned char sha256sum[32];
+
+	if( argc < 2 )
+	{
+		printf( "\n SHA-256 Validation Tests:\n\n" );
+		
+		for( i = 0; i < 3; i++ )
+		{
+			printf( " Test %d ", i + 1 );
+			
+			sha256_starts( &ctx );
+			
+			if( i < 2 )
+			{
+				sha256_update( &ctx, (uint8_t *) msg[i],
+					strlen( msg[i] ) );
+			}
+			else
+			{
+				memset( buf, 'a', 1000 );
+				
+				for( j = 0; j < 1000; j++ )
+				{
+					sha256_update( &ctx, (uint8_t *) buf, 1000 );
+				}
+			}
+			
+			sha256_finish( &ctx, sha256sum );
+			
+			for( j = 0; j < 32; j++ )
+			{
+				sprintf( output + j * 2, "%02x", sha256sum[j] );
+			}
+			
+			if( memcmp( output, val[i], 64 ) )
+			{
+				printf( "failed!\n" );
+				return( 1 );
+			}
+			
+			printf( "passed.\n" );
+		}
+
+		printf( "\n" );
+	}
+	else
+	{
+		if( ! ( f = fopen( argv[1], "rb" ) ) )
+		{
+			perror( "fopen" );
+			return( 1 );
+		}
+		
+		sha256_starts( &ctx );
+		
+		while( ( i = fread( buf, 1, sizeof( buf ), f ) ) > 0 )
+		{
+			sha256_update( &ctx, buf, i );
+		}
+		
+		sha256_finish( &ctx, sha256sum );
+		
+		for( j = 0; j < 32; j++ )
+		{
+			printf( "%02x", sha256sum[j] );
+		}
+		
+		printf( "  %s\n", argv[1] );
+	}
+	
+	return( 0 );
+}
+
+#endif
+