/* * RIPE MD-160 implementation * * Copyright (C) 2014-2014, Brainspark B.V. * * This file is part of PolarSSL (http://www.polarssl.org) * Lead Maintainer: Paul Bakker * * All rights reserved. * * 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., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ /* * The RIPEMD-160 algorithm was designed by RIPE in 1996 * http://homes.esat.kuleuven.be/~bosselae/ripemd160.html * http://ehash.iaik.tugraz.at/wiki/RIPEMD-160 */ #include "polarssl/config.h" #if defined(POLARSSL_RMD160_C) #include "polarssl/rmd160.h" #if defined(POLARSSL_FS_IO) || defined(POLARSSL_SELF_TEST) #include #endif #if defined(POLARSSL_SELF_TEST) #include #endif /* * 32-bit integer manipulation macros (little endian) */ #ifndef GET_UINT32_LE #define GET_UINT32_LE(n,b,i) \ { \ (n) = ( (uint32_t) (b)[(i) ] ) \ | ( (uint32_t) (b)[(i) + 1] << 8 ) \ | ( (uint32_t) (b)[(i) + 2] << 16 ) \ | ( (uint32_t) (b)[(i) + 3] << 24 ); \ } #endif #ifndef PUT_UINT32_LE #define PUT_UINT32_LE(n,b,i) \ { \ (b)[(i) ] = (unsigned char) ( (n) ); \ (b)[(i) + 1] = (unsigned char) ( (n) >> 8 ); \ (b)[(i) + 2] = (unsigned char) ( (n) >> 16 ); \ (b)[(i) + 3] = (unsigned char) ( (n) >> 24 ); \ } #endif /* * RMD160 context setup */ void rmd160_starts( rmd160_context *ctx ) { ctx->total[0] = 0; ctx->total[1] = 0; ctx->state[0] = 0x67452301; ctx->state[1] = 0xEFCDAB89; ctx->state[2] = 0x98BADCFE; ctx->state[3] = 0x10325476; ctx->state[4] = 0xC3D2E1F0; } void rmd160_process( rmd160_context *ctx, const unsigned char data[64] ) { uint32_t A, B, C, D, E, Ap, Bp, Cp, Dp, Ep, X[16]; GET_UINT32_LE( X[ 0], data, 0 ); GET_UINT32_LE( X[ 1], data, 4 ); GET_UINT32_LE( X[ 2], data, 8 ); GET_UINT32_LE( X[ 3], data, 12 ); GET_UINT32_LE( X[ 4], data, 16 ); GET_UINT32_LE( X[ 5], data, 20 ); GET_UINT32_LE( X[ 6], data, 24 ); GET_UINT32_LE( X[ 7], data, 28 ); GET_UINT32_LE( X[ 8], data, 32 ); GET_UINT32_LE( X[ 9], data, 36 ); GET_UINT32_LE( X[10], data, 40 ); GET_UINT32_LE( X[11], data, 44 ); GET_UINT32_LE( X[12], data, 48 ); GET_UINT32_LE( X[13], data, 52 ); GET_UINT32_LE( X[14], data, 56 ); GET_UINT32_LE( X[15], data, 60 ); A = Ap = ctx->state[0]; B = Bp = ctx->state[1]; C = Cp = ctx->state[2]; D = Dp = ctx->state[3]; E = Ep = ctx->state[4]; #define F1( x, y, z ) ( x ^ y ^ z ) #define F2( x, y, z ) ( ( x & y ) | ( ~x & z ) ) #define F3( x, y, z ) ( ( x | ~y ) ^ z ) #define F4( x, y, z ) ( ( x & z ) | ( y & ~z ) ) #define F5( x, y, z ) ( x ^ ( y | ~z ) ) #define S( x, n ) ( ( x << n ) | ( x >> (32 - n) ) ) #define P( a, b, c, d, e, r, s, f, k ) \ a += f( b, c, d ) + X[r] + k; \ a = S( a, s ) + e; \ c = S( c, 10 ); #define P2( a, b, c, d, e, r, s, rp, sp ) \ P( a, b, c, d, e, r, s, F, K ); \ P( a ## p, b ## p, c ## p, d ## p, e ## p, rp, sp, Fp, Kp ); #define F F1 #define K 0x00000000 #define Fp F5 #define Kp 0x50A28BE6 P2( A, B, C, D, E, 0, 11, 5, 8 ); P2( E, A, B, C, D, 1, 14, 14, 9 ); P2( D, E, A, B, C, 2, 15, 7, 9 ); P2( C, D, E, A, B, 3, 12, 0, 11 ); P2( B, C, D, E, A, 4, 5, 9, 13 ); P2( A, B, C, D, E, 5, 8, 2, 15 ); P2( E, A, B, C, D, 6, 7, 11, 15 ); P2( D, E, A, B, C, 7, 9, 4, 5 ); P2( C, D, E, A, B, 8, 11, 13, 7 ); P2( B, C, D, E, A, 9, 13, 6, 7 ); P2( A, B, C, D, E, 10, 14, 15, 8 ); P2( E, A, B, C, D, 11, 15, 8, 11 ); P2( D, E, A, B, C, 12, 6, 1, 14 ); P2( C, D, E, A, B, 13, 7, 10, 14 ); P2( B, C, D, E, A, 14, 9, 3, 12 ); P2( A, B, C, D, E, 15, 8, 12, 6 ); #undef F #undef K #undef Fp #undef Kp #define F F2 #define K 0x5A827999 #define Fp F4 #define Kp 0x5C4DD124 P2( E, A, B, C, D, 7, 7, 6, 9 ); P2( D, E, A, B, C, 4, 6, 11, 13 ); P2( C, D, E, A, B, 13, 8, 3, 15 ); P2( B, C, D, E, A, 1, 13, 7, 7 ); P2( A, B, C, D, E, 10, 11, 0, 12 ); P2( E, A, B, C, D, 6, 9, 13, 8 ); P2( D, E, A, B, C, 15, 7, 5, 9 ); P2( C, D, E, A, B, 3, 15, 10, 11 ); P2( B, C, D, E, A, 12, 7, 14, 7 ); P2( A, B, C, D, E, 0, 12, 15, 7 ); P2( E, A, B, C, D, 9, 15, 8, 12 ); P2( D, E, A, B, C, 5, 9, 12, 7 ); P2( C, D, E, A, B, 2, 11, 4, 6 ); P2( B, C, D, E, A, 14, 7, 9, 15 ); P2( A, B, C, D, E, 11, 13, 1, 13 ); P2( E, A, B, C, D, 8, 12, 2, 11 ); #undef F #undef K #undef Fp #undef Kp #define F F3 #define K 0x6ED9EBA1 #define Fp F3 #define Kp 0x6D703EF3 P2( D, E, A, B, C, 3, 11, 15, 9 ); P2( C, D, E, A, B, 10, 13, 5, 7 ); P2( B, C, D, E, A, 14, 6, 1, 15 ); P2( A, B, C, D, E, 4, 7, 3, 11 ); P2( E, A, B, C, D, 9, 14, 7, 8 ); P2( D, E, A, B, C, 15, 9, 14, 6 ); P2( C, D, E, A, B, 8, 13, 6, 6 ); P2( B, C, D, E, A, 1, 15, 9, 14 ); P2( A, B, C, D, E, 2, 14, 11, 12 ); P2( E, A, B, C, D, 7, 8, 8, 13 ); P2( D, E, A, B, C, 0, 13, 12, 5 ); P2( C, D, E, A, B, 6, 6, 2, 14 ); P2( B, C, D, E, A, 13, 5, 10, 13 ); P2( A, B, C, D, E, 11, 12, 0, 13 ); P2( E, A, B, C, D, 5, 7, 4, 7 ); P2( D, E, A, B, C, 12, 5, 13, 5 ); #undef F #undef K #undef Fp #undef Kp #define F F4 #define K 0x8F1BBCDC #define Fp F2 #define Kp 0x7A6D76E9 P2( C, D, E, A, B, 1, 11, 8, 15 ); P2( B, C, D, E, A, 9, 12, 6, 5 ); P2( A, B, C, D, E, 11, 14, 4, 8 ); P2( E, A, B, C, D, 10, 15, 1, 11 ); P2( D, E, A, B, C, 0, 14, 3, 14 ); P2( C, D, E, A, B, 8, 15, 11, 14 ); P2( B, C, D, E, A, 12, 9, 15, 6 ); P2( A, B, C, D, E, 4, 8, 0, 14 ); P2( E, A, B, C, D, 13, 9, 5, 6 ); P2( D, E, A, B, C, 3, 14, 12, 9 ); P2( C, D, E, A, B, 7, 5, 2, 12 ); P2( B, C, D, E, A, 15, 6, 13, 9 ); P2( A, B, C, D, E, 14, 8, 9, 12 ); P2( E, A, B, C, D, 5, 6, 7, 5 ); P2( D, E, A, B, C, 6, 5, 10, 15 ); P2( C, D, E, A, B, 2, 12, 14, 8 ); #undef F #undef K #undef Fp #undef Kp #define F F5 #define K 0xA953FD4E #define Fp F1 #define Kp 0x00000000 P2( B, C, D, E, A, 4, 9, 12, 8 ); P2( A, B, C, D, E, 0, 15, 15, 5 ); P2( E, A, B, C, D, 5, 5, 10, 12 ); P2( D, E, A, B, C, 9, 11, 4, 9 ); P2( C, D, E, A, B, 7, 6, 1, 12 ); P2( B, C, D, E, A, 12, 8, 5, 5 ); P2( A, B, C, D, E, 2, 13, 8, 14 ); P2( E, A, B, C, D, 10, 12, 7, 6 ); P2( D, E, A, B, C, 14, 5, 6, 8 ); P2( C, D, E, A, B, 1, 12, 2, 13 ); P2( B, C, D, E, A, 3, 13, 13, 6 ); P2( A, B, C, D, E, 8, 14, 14, 5 ); P2( E, A, B, C, D, 11, 11, 0, 15 ); P2( D, E, A, B, C, 6, 8, 3, 13 ); P2( C, D, E, A, B, 15, 5, 9, 11 ); P2( B, C, D, E, A, 13, 6, 11, 11 ); #undef F #undef K #undef Fp #undef Kp C = ctx->state[1] + C + Dp; ctx->state[1] = ctx->state[2] + D + Ep; ctx->state[2] = ctx->state[3] + E + Ap; ctx->state[3] = ctx->state[4] + A + Bp; ctx->state[4] = ctx->state[0] + B + Cp; ctx->state[0] = C; } /* * RMD160 process buffer */ void rmd160_update( rmd160_context *ctx, const unsigned char *input, size_t ilen ) { size_t fill; uint32_t left; if( ilen <= 0 ) return; left = ctx->total[0] & 0x3F; fill = 64 - left; ctx->total[0] += (uint32_t) ilen; ctx->total[0] &= 0xFFFFFFFF; if( ctx->total[0] < (uint32_t) ilen ) ctx->total[1]++; if( left && ilen >= fill ) { memcpy( (void *) (ctx->buffer + left), input, fill ); rmd160_process( ctx, ctx->buffer ); input += fill; ilen -= fill; left = 0; } while( ilen >= 64 ) { rmd160_process( ctx, input ); input += 64; ilen -= 64; } if( ilen > 0 ) { memcpy( (void *) (ctx->buffer + left), input, ilen ); } } static const unsigned char rmd160_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 }; /* * RMD160 final digest */ void rmd160_finish( rmd160_context *ctx, unsigned char output[16] ) { uint32_t last, padn; uint32_t high, low; unsigned char msglen[8]; high = ( ctx->total[0] >> 29 ) | ( ctx->total[1] << 3 ); low = ( ctx->total[0] << 3 ); PUT_UINT32_LE( low, msglen, 0 ); PUT_UINT32_LE( high, msglen, 4 ); last = ctx->total[0] & 0x3F; padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last ); rmd160_update( ctx, rmd160_padding, padn ); rmd160_update( ctx, msglen, 8 ); PUT_UINT32_LE( ctx->state[0], output, 0 ); PUT_UINT32_LE( ctx->state[1], output, 4 ); PUT_UINT32_LE( ctx->state[2], output, 8 ); PUT_UINT32_LE( ctx->state[3], output, 12 ); PUT_UINT32_LE( ctx->state[4], output, 16 ); } /* * output = RMD160( input buffer ) */ void rmd160( const unsigned char *input, size_t ilen, unsigned char output[16] ) { rmd160_context ctx; rmd160_starts( &ctx ); rmd160_update( &ctx, input, ilen ); rmd160_finish( &ctx, output ); memset( &ctx, 0, sizeof( rmd160_context ) ); } #if defined(POLARSSL_FS_IO) /* * output = RMD160( file contents ) */ int rmd160_file( const char *path, unsigned char output[16] ) { FILE *f; size_t n; rmd160_context ctx; unsigned char buf[1024]; if( ( f = fopen( path, "rb" ) ) == NULL ) return( POLARSSL_ERR_RMD160_FILE_IO_ERROR ); rmd160_starts( &ctx ); while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 ) rmd160_update( &ctx, buf, n ); rmd160_finish( &ctx, output ); memset( &ctx, 0, sizeof( rmd160_context ) ); if( ferror( f ) != 0 ) { fclose( f ); return( POLARSSL_ERR_RMD160_FILE_IO_ERROR ); } fclose( f ); return( 0 ); } #endif /* POLARSSL_FS_IO */ #if defined(POLARSSL_SELF_TEST) /* * Test vectors from the RIPEMD-160 paper */ #define MD_TESTS 8 static const char *rmd160_test_input[MD_TESTS] = { "", "a", "abc", "message digest", "abcdefghijklmnopqrstuvwxyz", "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", "1234567890123456789012345678901234567890" "1234567890123456789012345678901234567890", }; static const unsigned char rmd160_test_output[MD_TESTS][20] = { { 0x9c, 0x11, 0x85, 0xa5, 0xc5, 0xe9, 0xfc, 0x54, 0x61, 0x28, 0x08, 0x97, 0x7e, 0xe8, 0xf5, 0x48, 0xb2, 0x25, 0x8d, 0x31 }, { 0x0b, 0xdc, 0x9d, 0x2d, 0x25, 0x6b, 0x3e, 0xe9, 0xda, 0xae, 0x34, 0x7b, 0xe6, 0xf4, 0xdc, 0x83, 0x5a, 0x46, 0x7f, 0xfe }, { 0x8e, 0xb2, 0x08, 0xf7, 0xe0, 0x5d, 0x98, 0x7a, 0x9b, 0x04, 0x4a, 0x8e, 0x98, 0xc6, 0xb0, 0x87, 0xf1, 0x5a, 0x0b, 0xfc }, { 0x5d, 0x06, 0x89, 0xef, 0x49, 0xd2, 0xfa, 0xe5, 0x72, 0xb8, 0x81, 0xb1, 0x23, 0xa8, 0x5f, 0xfa, 0x21, 0x59, 0x5f, 0x36 }, { 0xf7, 0x1c, 0x27, 0x10, 0x9c, 0x69, 0x2c, 0x1b, 0x56, 0xbb, 0xdc, 0xeb, 0x5b, 0x9d, 0x28, 0x65, 0xb3, 0x70, 0x8d, 0xbc }, { 0x12, 0xa0, 0x53, 0x38, 0x4a, 0x9c, 0x0c, 0x88, 0xe4, 0x05, 0xa0, 0x6c, 0x27, 0xdc, 0xf4, 0x9a, 0xda, 0x62, 0xeb, 0x2b }, { 0xb0, 0xe2, 0x0b, 0x6e, 0x31, 0x16, 0x64, 0x02, 0x86, 0xed, 0x3a, 0x87, 0xa5, 0x71, 0x30, 0x79, 0xb2, 0x1f, 0x51, 0x89 }, { 0x9b, 0x75, 0x2e, 0x45, 0x57, 0x3d, 0x4b, 0x39, 0xf4, 0xdb, 0xd3, 0x32, 0x3c, 0xab, 0x82, 0xbf, 0x63, 0x32, 0x6b, 0xfb }, }; /* * Checkup routine */ int rmd160_self_test( int verbose ) { int i; unsigned char output[20]; memset( output, 0, sizeof output ); for( i = 0; i < MD_TESTS; i++ ) { if( verbose != 0 ) printf( " RMD160 test #%d: ", i + 1 ); rmd160( (const unsigned char *)rmd160_test_input[i], strlen( rmd160_test_input[i] ), output ); if( memcmp( output, rmd160_test_output[i], 20 ) != 0 ) { if( verbose != 0 ) printf( "failed\n" ); return( 1 ); } if( verbose != 0 ) printf( "passed\n" ); } if( verbose != 0 ) printf( "\n" ); return( 0 ); } #endif #endif