| /* |
| * FIPS-180-2 compliant SHA-256 implementation |
| * |
| * Copyright (C) 2006-2014, ARM Limited, All Rights Reserved |
| * |
| * This file is part of mbed TLS (https://tls.mbed.org) |
| * |
| * 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 SHA-256 Secure Hash Standard was published by NIST in 2002. |
| * |
| * http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf |
| */ |
| |
| #if !defined(POLARSSL_CONFIG_FILE) |
| #include "mbedtls/config.h" |
| #else |
| #include POLARSSL_CONFIG_FILE |
| #endif |
| |
| #if defined(POLARSSL_SHA256_C) |
| |
| #include "mbedtls/sha256.h" |
| |
| #include <string.h> |
| |
| #if defined(POLARSSL_FS_IO) |
| #include <stdio.h> |
| #endif |
| |
| #if defined(POLARSSL_SELF_TEST) |
| #if defined(POLARSSL_PLATFORM_C) |
| #include "mbedtls/platform.h" |
| #else |
| #include <stdio.h> |
| #define polarssl_printf printf |
| #endif /* POLARSSL_PLATFORM_C */ |
| #endif /* POLARSSL_SELF_TEST */ |
| |
| /* Implementation that should never be optimized out by the compiler */ |
| static void polarssl_zeroize( void *v, size_t n ) { |
| volatile unsigned char *p = v; while( n-- ) *p++ = 0; |
| } |
| |
| #if !defined(POLARSSL_SHA256_ALT) |
| |
| /* |
| * 32-bit integer manipulation macros (big endian) |
| */ |
| #ifndef GET_UINT32_BE |
| #define GET_UINT32_BE(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] ); \ |
| } |
| #endif |
| |
| #ifndef PUT_UINT32_BE |
| #define PUT_UINT32_BE(n,b,i) \ |
| { \ |
| (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \ |
| (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \ |
| (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \ |
| (b)[(i) + 3] = (unsigned char) ( (n) ); \ |
| } |
| #endif |
| |
| void sha256_init( sha256_context *ctx ) |
| { |
| memset( ctx, 0, sizeof( sha256_context ) ); |
| } |
| |
| void sha256_free( sha256_context *ctx ) |
| { |
| if( ctx == NULL ) |
| return; |
| |
| polarssl_zeroize( ctx, sizeof( sha256_context ) ); |
| } |
| |
| /* |
| * SHA-256 context setup |
| */ |
| void sha256_starts( sha256_context *ctx, int is224 ) |
| { |
| ctx->total[0] = 0; |
| ctx->total[1] = 0; |
| |
| if( is224 == 0 ) |
| { |
| /* SHA-256 */ |
| 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; |
| } |
| else |
| { |
| /* SHA-224 */ |
| ctx->state[0] = 0xC1059ED8; |
| ctx->state[1] = 0x367CD507; |
| ctx->state[2] = 0x3070DD17; |
| ctx->state[3] = 0xF70E5939; |
| ctx->state[4] = 0xFFC00B31; |
| ctx->state[5] = 0x68581511; |
| ctx->state[6] = 0x64F98FA7; |
| ctx->state[7] = 0xBEFA4FA4; |
| } |
| |
| ctx->is224 = is224; |
| } |
| |
| void sha256_process( sha256_context *ctx, const unsigned char data[64] ) |
| { |
| uint32_t temp1, temp2, W[64]; |
| uint32_t A, B, C, D, E, F, G, H; |
| |
| GET_UINT32_BE( W[ 0], data, 0 ); |
| GET_UINT32_BE( W[ 1], data, 4 ); |
| GET_UINT32_BE( W[ 2], data, 8 ); |
| GET_UINT32_BE( W[ 3], data, 12 ); |
| GET_UINT32_BE( W[ 4], data, 16 ); |
| GET_UINT32_BE( W[ 5], data, 20 ); |
| GET_UINT32_BE( W[ 6], data, 24 ); |
| GET_UINT32_BE( W[ 7], data, 28 ); |
| GET_UINT32_BE( W[ 8], data, 32 ); |
| GET_UINT32_BE( W[ 9], data, 36 ); |
| GET_UINT32_BE( W[10], data, 40 ); |
| GET_UINT32_BE( W[11], data, 44 ); |
| GET_UINT32_BE( W[12], data, 48 ); |
| GET_UINT32_BE( W[13], data, 52 ); |
| GET_UINT32_BE( W[14], data, 56 ); |
| GET_UINT32_BE( 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; |
| } |
| |
| /* |
| * SHA-256 process buffer |
| */ |
| void sha256_update( sha256_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 ); |
| sha256_process( ctx, ctx->buffer ); |
| input += fill; |
| ilen -= fill; |
| left = 0; |
| } |
| |
| while( ilen >= 64 ) |
| { |
| sha256_process( ctx, input ); |
| input += 64; |
| ilen -= 64; |
| } |
| |
| if( ilen > 0 ) |
| memcpy( (void *) (ctx->buffer + left), input, ilen ); |
| } |
| |
| static const unsigned char 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 |
| }; |
| |
| /* |
| * SHA-256 final digest |
| */ |
| void sha256_finish( sha256_context *ctx, unsigned char output[32] ) |
| { |
| 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_BE( high, msglen, 0 ); |
| PUT_UINT32_BE( 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_BE( ctx->state[0], output, 0 ); |
| PUT_UINT32_BE( ctx->state[1], output, 4 ); |
| PUT_UINT32_BE( ctx->state[2], output, 8 ); |
| PUT_UINT32_BE( ctx->state[3], output, 12 ); |
| PUT_UINT32_BE( ctx->state[4], output, 16 ); |
| PUT_UINT32_BE( ctx->state[5], output, 20 ); |
| PUT_UINT32_BE( ctx->state[6], output, 24 ); |
| |
| if( ctx->is224 == 0 ) |
| PUT_UINT32_BE( ctx->state[7], output, 28 ); |
| } |
| |
| #endif /* !POLARSSL_SHA256_ALT */ |
| |
| /* |
| * output = SHA-256( input buffer ) |
| */ |
| void sha256( const unsigned char *input, size_t ilen, |
| unsigned char output[32], int is224 ) |
| { |
| sha256_context ctx; |
| |
| sha256_init( &ctx ); |
| sha256_starts( &ctx, is224 ); |
| sha256_update( &ctx, input, ilen ); |
| sha256_finish( &ctx, output ); |
| sha256_free( &ctx ); |
| } |
| |
| #if defined(POLARSSL_FS_IO) |
| /* |
| * output = SHA-256( file contents ) |
| */ |
| int sha256_file( const char *path, unsigned char output[32], int is224 ) |
| { |
| FILE *f; |
| size_t n; |
| sha256_context ctx; |
| unsigned char buf[1024]; |
| |
| if( ( f = fopen( path, "rb" ) ) == NULL ) |
| return( POLARSSL_ERR_SHA256_FILE_IO_ERROR ); |
| |
| sha256_init( &ctx ); |
| sha256_starts( &ctx, is224 ); |
| |
| while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 ) |
| sha256_update( &ctx, buf, n ); |
| |
| sha256_finish( &ctx, output ); |
| sha256_free( &ctx ); |
| |
| if( ferror( f ) != 0 ) |
| { |
| fclose( f ); |
| return( POLARSSL_ERR_SHA256_FILE_IO_ERROR ); |
| } |
| |
| fclose( f ); |
| return( 0 ); |
| } |
| #endif /* POLARSSL_FS_IO */ |
| |
| /* |
| * SHA-256 HMAC context setup |
| */ |
| void sha256_hmac_starts( sha256_context *ctx, const unsigned char *key, |
| size_t keylen, int is224 ) |
| { |
| size_t i; |
| unsigned char sum[32]; |
| |
| if( keylen > 64 ) |
| { |
| sha256( key, keylen, sum, is224 ); |
| keylen = ( is224 ) ? 28 : 32; |
| key = sum; |
| } |
| |
| memset( ctx->ipad, 0x36, 64 ); |
| memset( ctx->opad, 0x5C, 64 ); |
| |
| for( i = 0; i < keylen; i++ ) |
| { |
| ctx->ipad[i] = (unsigned char)( ctx->ipad[i] ^ key[i] ); |
| ctx->opad[i] = (unsigned char)( ctx->opad[i] ^ key[i] ); |
| } |
| |
| sha256_starts( ctx, is224 ); |
| sha256_update( ctx, ctx->ipad, 64 ); |
| |
| polarssl_zeroize( sum, sizeof( sum ) ); |
| } |
| |
| /* |
| * SHA-256 HMAC process buffer |
| */ |
| void sha256_hmac_update( sha256_context *ctx, const unsigned char *input, |
| size_t ilen ) |
| { |
| sha256_update( ctx, input, ilen ); |
| } |
| |
| /* |
| * SHA-256 HMAC final digest |
| */ |
| void sha256_hmac_finish( sha256_context *ctx, unsigned char output[32] ) |
| { |
| int is224, hlen; |
| unsigned char tmpbuf[32]; |
| |
| is224 = ctx->is224; |
| hlen = ( is224 == 0 ) ? 32 : 28; |
| |
| sha256_finish( ctx, tmpbuf ); |
| sha256_starts( ctx, is224 ); |
| sha256_update( ctx, ctx->opad, 64 ); |
| sha256_update( ctx, tmpbuf, hlen ); |
| sha256_finish( ctx, output ); |
| |
| polarssl_zeroize( tmpbuf, sizeof( tmpbuf ) ); |
| } |
| |
| /* |
| * SHA-256 HMAC context reset |
| */ |
| void sha256_hmac_reset( sha256_context *ctx ) |
| { |
| sha256_starts( ctx, ctx->is224 ); |
| sha256_update( ctx, ctx->ipad, 64 ); |
| } |
| |
| /* |
| * output = HMAC-SHA-256( hmac key, input buffer ) |
| */ |
| void sha256_hmac( const unsigned char *key, size_t keylen, |
| const unsigned char *input, size_t ilen, |
| unsigned char output[32], int is224 ) |
| { |
| sha256_context ctx; |
| |
| sha256_init( &ctx ); |
| sha256_hmac_starts( &ctx, key, keylen, is224 ); |
| sha256_hmac_update( &ctx, input, ilen ); |
| sha256_hmac_finish( &ctx, output ); |
| sha256_free( &ctx ); |
| } |
| |
| #if defined(POLARSSL_SELF_TEST) |
| /* |
| * FIPS-180-2 test vectors |
| */ |
| static unsigned char sha256_test_buf[3][57] = |
| { |
| { "abc" }, |
| { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" }, |
| { "" } |
| }; |
| |
| static const int sha256_test_buflen[3] = |
| { |
| 3, 56, 1000 |
| }; |
| |
| static const unsigned char sha256_test_sum[6][32] = |
| { |
| /* |
| * SHA-224 test vectors |
| */ |
| { 0x23, 0x09, 0x7D, 0x22, 0x34, 0x05, 0xD8, 0x22, |
| 0x86, 0x42, 0xA4, 0x77, 0xBD, 0xA2, 0x55, 0xB3, |
| 0x2A, 0xAD, 0xBC, 0xE4, 0xBD, 0xA0, 0xB3, 0xF7, |
| 0xE3, 0x6C, 0x9D, 0xA7 }, |
| { 0x75, 0x38, 0x8B, 0x16, 0x51, 0x27, 0x76, 0xCC, |
| 0x5D, 0xBA, 0x5D, 0xA1, 0xFD, 0x89, 0x01, 0x50, |
| 0xB0, 0xC6, 0x45, 0x5C, 0xB4, 0xF5, 0x8B, 0x19, |
| 0x52, 0x52, 0x25, 0x25 }, |
| { 0x20, 0x79, 0x46, 0x55, 0x98, 0x0C, 0x91, 0xD8, |
| 0xBB, 0xB4, 0xC1, 0xEA, 0x97, 0x61, 0x8A, 0x4B, |
| 0xF0, 0x3F, 0x42, 0x58, 0x19, 0x48, 0xB2, 0xEE, |
| 0x4E, 0xE7, 0xAD, 0x67 }, |
| |
| /* |
| * SHA-256 test vectors |
| */ |
| { 0xBA, 0x78, 0x16, 0xBF, 0x8F, 0x01, 0xCF, 0xEA, |
| 0x41, 0x41, 0x40, 0xDE, 0x5D, 0xAE, 0x22, 0x23, |
| 0xB0, 0x03, 0x61, 0xA3, 0x96, 0x17, 0x7A, 0x9C, |
| 0xB4, 0x10, 0xFF, 0x61, 0xF2, 0x00, 0x15, 0xAD }, |
| { 0x24, 0x8D, 0x6A, 0x61, 0xD2, 0x06, 0x38, 0xB8, |
| 0xE5, 0xC0, 0x26, 0x93, 0x0C, 0x3E, 0x60, 0x39, |
| 0xA3, 0x3C, 0xE4, 0x59, 0x64, 0xFF, 0x21, 0x67, |
| 0xF6, 0xEC, 0xED, 0xD4, 0x19, 0xDB, 0x06, 0xC1 }, |
| { 0xCD, 0xC7, 0x6E, 0x5C, 0x99, 0x14, 0xFB, 0x92, |
| 0x81, 0xA1, 0xC7, 0xE2, 0x84, 0xD7, 0x3E, 0x67, |
| 0xF1, 0x80, 0x9A, 0x48, 0xA4, 0x97, 0x20, 0x0E, |
| 0x04, 0x6D, 0x39, 0xCC, 0xC7, 0x11, 0x2C, 0xD0 } |
| }; |
| |
| /* |
| * RFC 4231 test vectors |
| */ |
| static unsigned char sha256_hmac_test_key[7][26] = |
| { |
| { "\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B" |
| "\x0B\x0B\x0B\x0B" }, |
| { "Jefe" }, |
| { "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA" |
| "\xAA\xAA\xAA\xAA" }, |
| { "\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F\x10" |
| "\x11\x12\x13\x14\x15\x16\x17\x18\x19" }, |
| { "\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C" |
| "\x0C\x0C\x0C\x0C" }, |
| { "" }, /* 0xAA 131 times */ |
| { "" } |
| }; |
| |
| static const int sha256_hmac_test_keylen[7] = |
| { |
| 20, 4, 20, 25, 20, 131, 131 |
| }; |
| |
| static unsigned char sha256_hmac_test_buf[7][153] = |
| { |
| { "Hi There" }, |
| { "what do ya want for nothing?" }, |
| { "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD" |
| "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD" |
| "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD" |
| "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD" |
| "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD" }, |
| { "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD" |
| "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD" |
| "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD" |
| "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD" |
| "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD" }, |
| { "Test With Truncation" }, |
| { "Test Using Larger Than Block-Size Key - Hash Key First" }, |
| { "This is a test using a larger than block-size key " |
| "and a larger than block-size data. The key needs to " |
| "be hashed before being used by the HMAC algorithm." } |
| }; |
| |
| static const int sha256_hmac_test_buflen[7] = |
| { |
| 8, 28, 50, 50, 20, 54, 152 |
| }; |
| |
| static const unsigned char sha256_hmac_test_sum[14][32] = |
| { |
| /* |
| * HMAC-SHA-224 test vectors |
| */ |
| { 0x89, 0x6F, 0xB1, 0x12, 0x8A, 0xBB, 0xDF, 0x19, |
| 0x68, 0x32, 0x10, 0x7C, 0xD4, 0x9D, 0xF3, 0x3F, |
| 0x47, 0xB4, 0xB1, 0x16, 0x99, 0x12, 0xBA, 0x4F, |
| 0x53, 0x68, 0x4B, 0x22 }, |
| { 0xA3, 0x0E, 0x01, 0x09, 0x8B, 0xC6, 0xDB, 0xBF, |
| 0x45, 0x69, 0x0F, 0x3A, 0x7E, 0x9E, 0x6D, 0x0F, |
| 0x8B, 0xBE, 0xA2, 0xA3, 0x9E, 0x61, 0x48, 0x00, |
| 0x8F, 0xD0, 0x5E, 0x44 }, |
| { 0x7F, 0xB3, 0xCB, 0x35, 0x88, 0xC6, 0xC1, 0xF6, |
| 0xFF, 0xA9, 0x69, 0x4D, 0x7D, 0x6A, 0xD2, 0x64, |
| 0x93, 0x65, 0xB0, 0xC1, 0xF6, 0x5D, 0x69, 0xD1, |
| 0xEC, 0x83, 0x33, 0xEA }, |
| { 0x6C, 0x11, 0x50, 0x68, 0x74, 0x01, 0x3C, 0xAC, |
| 0x6A, 0x2A, 0xBC, 0x1B, 0xB3, 0x82, 0x62, 0x7C, |
| 0xEC, 0x6A, 0x90, 0xD8, 0x6E, 0xFC, 0x01, 0x2D, |
| 0xE7, 0xAF, 0xEC, 0x5A }, |
| { 0x0E, 0x2A, 0xEA, 0x68, 0xA9, 0x0C, 0x8D, 0x37, |
| 0xC9, 0x88, 0xBC, 0xDB, 0x9F, 0xCA, 0x6F, 0xA8 }, |
| { 0x95, 0xE9, 0xA0, 0xDB, 0x96, 0x20, 0x95, 0xAD, |
| 0xAE, 0xBE, 0x9B, 0x2D, 0x6F, 0x0D, 0xBC, 0xE2, |
| 0xD4, 0x99, 0xF1, 0x12, 0xF2, 0xD2, 0xB7, 0x27, |
| 0x3F, 0xA6, 0x87, 0x0E }, |
| { 0x3A, 0x85, 0x41, 0x66, 0xAC, 0x5D, 0x9F, 0x02, |
| 0x3F, 0x54, 0xD5, 0x17, 0xD0, 0xB3, 0x9D, 0xBD, |
| 0x94, 0x67, 0x70, 0xDB, 0x9C, 0x2B, 0x95, 0xC9, |
| 0xF6, 0xF5, 0x65, 0xD1 }, |
| |
| /* |
| * HMAC-SHA-256 test vectors |
| */ |
| { 0xB0, 0x34, 0x4C, 0x61, 0xD8, 0xDB, 0x38, 0x53, |
| 0x5C, 0xA8, 0xAF, 0xCE, 0xAF, 0x0B, 0xF1, 0x2B, |
| 0x88, 0x1D, 0xC2, 0x00, 0xC9, 0x83, 0x3D, 0xA7, |
| 0x26, 0xE9, 0x37, 0x6C, 0x2E, 0x32, 0xCF, 0xF7 }, |
| { 0x5B, 0xDC, 0xC1, 0x46, 0xBF, 0x60, 0x75, 0x4E, |
| 0x6A, 0x04, 0x24, 0x26, 0x08, 0x95, 0x75, 0xC7, |
| 0x5A, 0x00, 0x3F, 0x08, 0x9D, 0x27, 0x39, 0x83, |
| 0x9D, 0xEC, 0x58, 0xB9, 0x64, 0xEC, 0x38, 0x43 }, |
| { 0x77, 0x3E, 0xA9, 0x1E, 0x36, 0x80, 0x0E, 0x46, |
| 0x85, 0x4D, 0xB8, 0xEB, 0xD0, 0x91, 0x81, 0xA7, |
| 0x29, 0x59, 0x09, 0x8B, 0x3E, 0xF8, 0xC1, 0x22, |
| 0xD9, 0x63, 0x55, 0x14, 0xCE, 0xD5, 0x65, 0xFE }, |
| { 0x82, 0x55, 0x8A, 0x38, 0x9A, 0x44, 0x3C, 0x0E, |
| 0xA4, 0xCC, 0x81, 0x98, 0x99, 0xF2, 0x08, 0x3A, |
| 0x85, 0xF0, 0xFA, 0xA3, 0xE5, 0x78, 0xF8, 0x07, |
| 0x7A, 0x2E, 0x3F, 0xF4, 0x67, 0x29, 0x66, 0x5B }, |
| { 0xA3, 0xB6, 0x16, 0x74, 0x73, 0x10, 0x0E, 0xE0, |
| 0x6E, 0x0C, 0x79, 0x6C, 0x29, 0x55, 0x55, 0x2B }, |
| { 0x60, 0xE4, 0x31, 0x59, 0x1E, 0xE0, 0xB6, 0x7F, |
| 0x0D, 0x8A, 0x26, 0xAA, 0xCB, 0xF5, 0xB7, 0x7F, |
| 0x8E, 0x0B, 0xC6, 0x21, 0x37, 0x28, 0xC5, 0x14, |
| 0x05, 0x46, 0x04, 0x0F, 0x0E, 0xE3, 0x7F, 0x54 }, |
| { 0x9B, 0x09, 0xFF, 0xA7, 0x1B, 0x94, 0x2F, 0xCB, |
| 0x27, 0x63, 0x5F, 0xBC, 0xD5, 0xB0, 0xE9, 0x44, |
| 0xBF, 0xDC, 0x63, 0x64, 0x4F, 0x07, 0x13, 0x93, |
| 0x8A, 0x7F, 0x51, 0x53, 0x5C, 0x3A, 0x35, 0xE2 } |
| }; |
| |
| /* |
| * Checkup routine |
| */ |
| int sha256_self_test( int verbose ) |
| { |
| int i, j, k, buflen, ret = 0; |
| unsigned char buf[1024]; |
| unsigned char sha256sum[32]; |
| sha256_context ctx; |
| |
| sha256_init( &ctx ); |
| |
| for( i = 0; i < 6; i++ ) |
| { |
| j = i % 3; |
| k = i < 3; |
| |
| if( verbose != 0 ) |
| polarssl_printf( " SHA-%d test #%d: ", 256 - k * 32, j + 1 ); |
| |
| sha256_starts( &ctx, k ); |
| |
| if( j == 2 ) |
| { |
| memset( buf, 'a', buflen = 1000 ); |
| |
| for( j = 0; j < 1000; j++ ) |
| sha256_update( &ctx, buf, buflen ); |
| } |
| else |
| sha256_update( &ctx, sha256_test_buf[j], |
| sha256_test_buflen[j] ); |
| |
| sha256_finish( &ctx, sha256sum ); |
| |
| if( memcmp( sha256sum, sha256_test_sum[i], 32 - k * 4 ) != 0 ) |
| { |
| if( verbose != 0 ) |
| polarssl_printf( "failed\n" ); |
| |
| ret = 1; |
| goto exit; |
| } |
| |
| if( verbose != 0 ) |
| polarssl_printf( "passed\n" ); |
| } |
| |
| if( verbose != 0 ) |
| polarssl_printf( "\n" ); |
| |
| for( i = 0; i < 14; i++ ) |
| { |
| j = i % 7; |
| k = i < 7; |
| |
| if( verbose != 0 ) |
| polarssl_printf( " HMAC-SHA-%d test #%d: ", 256 - k * 32, j + 1 ); |
| |
| if( j == 5 || j == 6 ) |
| { |
| memset( buf, 0xAA, buflen = 131 ); |
| sha256_hmac_starts( &ctx, buf, buflen, k ); |
| } |
| else |
| sha256_hmac_starts( &ctx, sha256_hmac_test_key[j], |
| sha256_hmac_test_keylen[j], k ); |
| |
| sha256_hmac_update( &ctx, sha256_hmac_test_buf[j], |
| sha256_hmac_test_buflen[j] ); |
| |
| sha256_hmac_finish( &ctx, sha256sum ); |
| |
| buflen = ( j == 4 ) ? 16 : 32 - k * 4; |
| |
| if( memcmp( sha256sum, sha256_hmac_test_sum[i], buflen ) != 0 ) |
| { |
| if( verbose != 0 ) |
| polarssl_printf( "failed\n" ); |
| |
| ret = 1; |
| goto exit; |
| } |
| |
| if( verbose != 0 ) |
| polarssl_printf( "passed\n" ); |
| } |
| |
| if( verbose != 0 ) |
| polarssl_printf( "\n" ); |
| |
| exit: |
| sha256_free( &ctx ); |
| |
| return( ret ); |
| } |
| |
| #endif /* POLARSSL_SELF_TEST */ |
| |
| #endif /* POLARSSL_SHA256_C */ |