Marco Zecchini / Mbed OS Example_RTOS

Rtos API example

mbed-os/features/mbedtls/src/gcm.c@0:9fca2b23d0ba, 2019-02-23 (annotated)

Committer:
marcozecchini
Date:
Sat Feb 23 12:13:36 2019 +0000
Revision:
0:9fca2b23d0ba
final commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
marcozecchini 0:9fca2b23d0ba 1 /*
marcozecchini 0:9fca2b23d0ba 2 * NIST SP800-38D compliant GCM implementation
marcozecchini 0:9fca2b23d0ba 3 *
marcozecchini 0:9fca2b23d0ba 4 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
marcozecchini 0:9fca2b23d0ba 5 * SPDX-License-Identifier: Apache-2.0
marcozecchini 0:9fca2b23d0ba 6 *
marcozecchini 0:9fca2b23d0ba 7 * Licensed under the Apache License, Version 2.0 (the "License"); you may
marcozecchini 0:9fca2b23d0ba 8 * not use this file except in compliance with the License.
marcozecchini 0:9fca2b23d0ba 9 * You may obtain a copy of the License at
marcozecchini 0:9fca2b23d0ba 10 *
marcozecchini 0:9fca2b23d0ba 11 * http://www.apache.org/licenses/LICENSE-2.0
marcozecchini 0:9fca2b23d0ba 12 *
marcozecchini 0:9fca2b23d0ba 13 * Unless required by applicable law or agreed to in writing, software
marcozecchini 0:9fca2b23d0ba 14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
marcozecchini 0:9fca2b23d0ba 15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
marcozecchini 0:9fca2b23d0ba 16 * See the License for the specific language governing permissions and
marcozecchini 0:9fca2b23d0ba 17 * limitations under the License.
marcozecchini 0:9fca2b23d0ba 18 *
marcozecchini 0:9fca2b23d0ba 19 * This file is part of mbed TLS (https://tls.mbed.org)
marcozecchini 0:9fca2b23d0ba 20 */
marcozecchini 0:9fca2b23d0ba 21
marcozecchini 0:9fca2b23d0ba 22 /*
marcozecchini 0:9fca2b23d0ba 23 * http://csrc.nist.gov/publications/nistpubs/800-38D/SP-800-38D.pdf
marcozecchini 0:9fca2b23d0ba 24 *
marcozecchini 0:9fca2b23d0ba 25 * See also:
marcozecchini 0:9fca2b23d0ba 26 * [MGV] http://csrc.nist.gov/groups/ST/toolkit/BCM/documents/proposedmodes/gcm/gcm-revised-spec.pdf
marcozecchini 0:9fca2b23d0ba 27 *
marcozecchini 0:9fca2b23d0ba 28 * We use the algorithm described as Shoup's method with 4-bit tables in
marcozecchini 0:9fca2b23d0ba 29 * [MGV] 4.1, pp. 12-13, to enhance speed without using too much memory.
marcozecchini 0:9fca2b23d0ba 30 */
marcozecchini 0:9fca2b23d0ba 31
marcozecchini 0:9fca2b23d0ba 32 #if !defined(MBEDTLS_CONFIG_FILE)
marcozecchini 0:9fca2b23d0ba 33 #include "mbedtls/config.h"
marcozecchini 0:9fca2b23d0ba 34 #else
marcozecchini 0:9fca2b23d0ba 35 #include MBEDTLS_CONFIG_FILE
marcozecchini 0:9fca2b23d0ba 36 #endif
marcozecchini 0:9fca2b23d0ba 37
marcozecchini 0:9fca2b23d0ba 38 #if defined(MBEDTLS_GCM_C)
marcozecchini 0:9fca2b23d0ba 39
marcozecchini 0:9fca2b23d0ba 40 #include "mbedtls/gcm.h"
marcozecchini 0:9fca2b23d0ba 41
marcozecchini 0:9fca2b23d0ba 42 #include <string.h>
marcozecchini 0:9fca2b23d0ba 43
marcozecchini 0:9fca2b23d0ba 44 #if defined(MBEDTLS_AESNI_C)
marcozecchini 0:9fca2b23d0ba 45 #include "mbedtls/aesni.h"
marcozecchini 0:9fca2b23d0ba 46 #endif
marcozecchini 0:9fca2b23d0ba 47
marcozecchini 0:9fca2b23d0ba 48 #if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
marcozecchini 0:9fca2b23d0ba 49 #if defined(MBEDTLS_PLATFORM_C)
marcozecchini 0:9fca2b23d0ba 50 #include "mbedtls/platform.h"
marcozecchini 0:9fca2b23d0ba 51 #else
marcozecchini 0:9fca2b23d0ba 52 #include <stdio.h>
marcozecchini 0:9fca2b23d0ba 53 #define mbedtls_printf printf
marcozecchini 0:9fca2b23d0ba 54 #endif /* MBEDTLS_PLATFORM_C */
marcozecchini 0:9fca2b23d0ba 55 #endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
marcozecchini 0:9fca2b23d0ba 56
marcozecchini 0:9fca2b23d0ba 57 /*
marcozecchini 0:9fca2b23d0ba 58 * 32-bit integer manipulation macros (big endian)
marcozecchini 0:9fca2b23d0ba 59 */
marcozecchini 0:9fca2b23d0ba 60 #ifndef GET_UINT32_BE
marcozecchini 0:9fca2b23d0ba 61 #define GET_UINT32_BE(n,b,i) \
marcozecchini 0:9fca2b23d0ba 62 { \
marcozecchini 0:9fca2b23d0ba 63 (n) = ( (uint32_t) (b)[(i) ] << 24 ) \
marcozecchini 0:9fca2b23d0ba 64 | ( (uint32_t) (b)[(i) + 1] << 16 ) \
marcozecchini 0:9fca2b23d0ba 65 | ( (uint32_t) (b)[(i) + 2] << 8 ) \
marcozecchini 0:9fca2b23d0ba 66 | ( (uint32_t) (b)[(i) + 3] ); \
marcozecchini 0:9fca2b23d0ba 67 }
marcozecchini 0:9fca2b23d0ba 68 #endif
marcozecchini 0:9fca2b23d0ba 69
marcozecchini 0:9fca2b23d0ba 70 #ifndef PUT_UINT32_BE
marcozecchini 0:9fca2b23d0ba 71 #define PUT_UINT32_BE(n,b,i) \
marcozecchini 0:9fca2b23d0ba 72 { \
marcozecchini 0:9fca2b23d0ba 73 (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
marcozecchini 0:9fca2b23d0ba 74 (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
marcozecchini 0:9fca2b23d0ba 75 (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
marcozecchini 0:9fca2b23d0ba 76 (b)[(i) + 3] = (unsigned char) ( (n) ); \
marcozecchini 0:9fca2b23d0ba 77 }
marcozecchini 0:9fca2b23d0ba 78 #endif
marcozecchini 0:9fca2b23d0ba 79
marcozecchini 0:9fca2b23d0ba 80 /* Implementation that should never be optimized out by the compiler */
marcozecchini 0:9fca2b23d0ba 81 static void mbedtls_zeroize( void *v, size_t n ) {
marcozecchini 0:9fca2b23d0ba 82 volatile unsigned char *p = v; while( n-- ) *p++ = 0;
marcozecchini 0:9fca2b23d0ba 83 }
marcozecchini 0:9fca2b23d0ba 84
marcozecchini 0:9fca2b23d0ba 85 /*
marcozecchini 0:9fca2b23d0ba 86 * Initialize a context
marcozecchini 0:9fca2b23d0ba 87 */
marcozecchini 0:9fca2b23d0ba 88 void mbedtls_gcm_init( mbedtls_gcm_context *ctx )
marcozecchini 0:9fca2b23d0ba 89 {
marcozecchini 0:9fca2b23d0ba 90 memset( ctx, 0, sizeof( mbedtls_gcm_context ) );
marcozecchini 0:9fca2b23d0ba 91 }
marcozecchini 0:9fca2b23d0ba 92
marcozecchini 0:9fca2b23d0ba 93 /*
marcozecchini 0:9fca2b23d0ba 94 * Precompute small multiples of H, that is set
marcozecchini 0:9fca2b23d0ba 95 * HH[i] || HL[i] = H times i,
marcozecchini 0:9fca2b23d0ba 96 * where i is seen as a field element as in [MGV], ie high-order bits
marcozecchini 0:9fca2b23d0ba 97 * correspond to low powers of P. The result is stored in the same way, that
marcozecchini 0:9fca2b23d0ba 98 * is the high-order bit of HH corresponds to P^0 and the low-order bit of HL
marcozecchini 0:9fca2b23d0ba 99 * corresponds to P^127.
marcozecchini 0:9fca2b23d0ba 100 */
marcozecchini 0:9fca2b23d0ba 101 static int gcm_gen_table( mbedtls_gcm_context *ctx )
marcozecchini 0:9fca2b23d0ba 102 {
marcozecchini 0:9fca2b23d0ba 103 int ret, i, j;
marcozecchini 0:9fca2b23d0ba 104 uint64_t hi, lo;
marcozecchini 0:9fca2b23d0ba 105 uint64_t vl, vh;
marcozecchini 0:9fca2b23d0ba 106 unsigned char h[16];
marcozecchini 0:9fca2b23d0ba 107 size_t olen = 0;
marcozecchini 0:9fca2b23d0ba 108
marcozecchini 0:9fca2b23d0ba 109 memset( h, 0, 16 );
marcozecchini 0:9fca2b23d0ba 110 if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, h, 16, h, &olen ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 111 return( ret );
marcozecchini 0:9fca2b23d0ba 112
marcozecchini 0:9fca2b23d0ba 113 /* pack h as two 64-bits ints, big-endian */
marcozecchini 0:9fca2b23d0ba 114 GET_UINT32_BE( hi, h, 0 );
marcozecchini 0:9fca2b23d0ba 115 GET_UINT32_BE( lo, h, 4 );
marcozecchini 0:9fca2b23d0ba 116 vh = (uint64_t) hi << 32 | lo;
marcozecchini 0:9fca2b23d0ba 117
marcozecchini 0:9fca2b23d0ba 118 GET_UINT32_BE( hi, h, 8 );
marcozecchini 0:9fca2b23d0ba 119 GET_UINT32_BE( lo, h, 12 );
marcozecchini 0:9fca2b23d0ba 120 vl = (uint64_t) hi << 32 | lo;
marcozecchini 0:9fca2b23d0ba 121
marcozecchini 0:9fca2b23d0ba 122 /* 8 = 1000 corresponds to 1 in GF(2^128) */
marcozecchini 0:9fca2b23d0ba 123 ctx->HL[8] = vl;
marcozecchini 0:9fca2b23d0ba 124 ctx->HH[8] = vh;
marcozecchini 0:9fca2b23d0ba 125
marcozecchini 0:9fca2b23d0ba 126 #if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64)
marcozecchini 0:9fca2b23d0ba 127 /* With CLMUL support, we need only h, not the rest of the table */
marcozecchini 0:9fca2b23d0ba 128 if( mbedtls_aesni_has_support( MBEDTLS_AESNI_CLMUL ) )
marcozecchini 0:9fca2b23d0ba 129 return( 0 );
marcozecchini 0:9fca2b23d0ba 130 #endif
marcozecchini 0:9fca2b23d0ba 131
marcozecchini 0:9fca2b23d0ba 132 /* 0 corresponds to 0 in GF(2^128) */
marcozecchini 0:9fca2b23d0ba 133 ctx->HH[0] = 0;
marcozecchini 0:9fca2b23d0ba 134 ctx->HL[0] = 0;
marcozecchini 0:9fca2b23d0ba 135
marcozecchini 0:9fca2b23d0ba 136 for( i = 4; i > 0; i >>= 1 )
marcozecchini 0:9fca2b23d0ba 137 {
marcozecchini 0:9fca2b23d0ba 138 uint32_t T = ( vl & 1 ) * 0xe1000000U;
marcozecchini 0:9fca2b23d0ba 139 vl = ( vh << 63 ) | ( vl >> 1 );
marcozecchini 0:9fca2b23d0ba 140 vh = ( vh >> 1 ) ^ ( (uint64_t) T << 32);
marcozecchini 0:9fca2b23d0ba 141
marcozecchini 0:9fca2b23d0ba 142 ctx->HL[i] = vl;
marcozecchini 0:9fca2b23d0ba 143 ctx->HH[i] = vh;
marcozecchini 0:9fca2b23d0ba 144 }
marcozecchini 0:9fca2b23d0ba 145
marcozecchini 0:9fca2b23d0ba 146 for( i = 2; i <= 8; i *= 2 )
marcozecchini 0:9fca2b23d0ba 147 {
marcozecchini 0:9fca2b23d0ba 148 uint64_t *HiL = ctx->HL + i, *HiH = ctx->HH + i;
marcozecchini 0:9fca2b23d0ba 149 vh = *HiH;
marcozecchini 0:9fca2b23d0ba 150 vl = *HiL;
marcozecchini 0:9fca2b23d0ba 151 for( j = 1; j < i; j++ )
marcozecchini 0:9fca2b23d0ba 152 {
marcozecchini 0:9fca2b23d0ba 153 HiH[j] = vh ^ ctx->HH[j];
marcozecchini 0:9fca2b23d0ba 154 HiL[j] = vl ^ ctx->HL[j];
marcozecchini 0:9fca2b23d0ba 155 }
marcozecchini 0:9fca2b23d0ba 156 }
marcozecchini 0:9fca2b23d0ba 157
marcozecchini 0:9fca2b23d0ba 158 return( 0 );
marcozecchini 0:9fca2b23d0ba 159 }
marcozecchini 0:9fca2b23d0ba 160
marcozecchini 0:9fca2b23d0ba 161 int mbedtls_gcm_setkey( mbedtls_gcm_context *ctx,
marcozecchini 0:9fca2b23d0ba 162 mbedtls_cipher_id_t cipher,
marcozecchini 0:9fca2b23d0ba 163 const unsigned char *key,
marcozecchini 0:9fca2b23d0ba 164 unsigned int keybits )
marcozecchini 0:9fca2b23d0ba 165 {
marcozecchini 0:9fca2b23d0ba 166 int ret;
marcozecchini 0:9fca2b23d0ba 167 const mbedtls_cipher_info_t *cipher_info;
marcozecchini 0:9fca2b23d0ba 168
marcozecchini 0:9fca2b23d0ba 169 cipher_info = mbedtls_cipher_info_from_values( cipher, keybits, MBEDTLS_MODE_ECB );
marcozecchini 0:9fca2b23d0ba 170 if( cipher_info == NULL )
marcozecchini 0:9fca2b23d0ba 171 return( MBEDTLS_ERR_GCM_BAD_INPUT );
marcozecchini 0:9fca2b23d0ba 172
marcozecchini 0:9fca2b23d0ba 173 if( cipher_info->block_size != 16 )
marcozecchini 0:9fca2b23d0ba 174 return( MBEDTLS_ERR_GCM_BAD_INPUT );
marcozecchini 0:9fca2b23d0ba 175
marcozecchini 0:9fca2b23d0ba 176 mbedtls_cipher_free( &ctx->cipher_ctx );
marcozecchini 0:9fca2b23d0ba 177
marcozecchini 0:9fca2b23d0ba 178 if( ( ret = mbedtls_cipher_setup( &ctx->cipher_ctx, cipher_info ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 179 return( ret );
marcozecchini 0:9fca2b23d0ba 180
marcozecchini 0:9fca2b23d0ba 181 if( ( ret = mbedtls_cipher_setkey( &ctx->cipher_ctx, key, keybits,
marcozecchini 0:9fca2b23d0ba 182 MBEDTLS_ENCRYPT ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 183 {
marcozecchini 0:9fca2b23d0ba 184 return( ret );
marcozecchini 0:9fca2b23d0ba 185 }
marcozecchini 0:9fca2b23d0ba 186
marcozecchini 0:9fca2b23d0ba 187 if( ( ret = gcm_gen_table( ctx ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 188 return( ret );
marcozecchini 0:9fca2b23d0ba 189
marcozecchini 0:9fca2b23d0ba 190 return( 0 );
marcozecchini 0:9fca2b23d0ba 191 }
marcozecchini 0:9fca2b23d0ba 192
marcozecchini 0:9fca2b23d0ba 193 /*
marcozecchini 0:9fca2b23d0ba 194 * Shoup's method for multiplication use this table with
marcozecchini 0:9fca2b23d0ba 195 * last4[x] = x times P^128
marcozecchini 0:9fca2b23d0ba 196 * where x and last4[x] are seen as elements of GF(2^128) as in [MGV]
marcozecchini 0:9fca2b23d0ba 197 */
marcozecchini 0:9fca2b23d0ba 198 static const uint64_t last4[16] =
marcozecchini 0:9fca2b23d0ba 199 {
marcozecchini 0:9fca2b23d0ba 200 0x0000, 0x1c20, 0x3840, 0x2460,
marcozecchini 0:9fca2b23d0ba 201 0x7080, 0x6ca0, 0x48c0, 0x54e0,
marcozecchini 0:9fca2b23d0ba 202 0xe100, 0xfd20, 0xd940, 0xc560,
marcozecchini 0:9fca2b23d0ba 203 0x9180, 0x8da0, 0xa9c0, 0xb5e0
marcozecchini 0:9fca2b23d0ba 204 };
marcozecchini 0:9fca2b23d0ba 205
marcozecchini 0:9fca2b23d0ba 206 /*
marcozecchini 0:9fca2b23d0ba 207 * Sets output to x times H using the precomputed tables.
marcozecchini 0:9fca2b23d0ba 208 * x and output are seen as elements of GF(2^128) as in [MGV].
marcozecchini 0:9fca2b23d0ba 209 */
marcozecchini 0:9fca2b23d0ba 210 static void gcm_mult( mbedtls_gcm_context *ctx, const unsigned char x[16],
marcozecchini 0:9fca2b23d0ba 211 unsigned char output[16] )
marcozecchini 0:9fca2b23d0ba 212 {
marcozecchini 0:9fca2b23d0ba 213 int i = 0;
marcozecchini 0:9fca2b23d0ba 214 unsigned char lo, hi, rem;
marcozecchini 0:9fca2b23d0ba 215 uint64_t zh, zl;
marcozecchini 0:9fca2b23d0ba 216
marcozecchini 0:9fca2b23d0ba 217 #if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64)
marcozecchini 0:9fca2b23d0ba 218 if( mbedtls_aesni_has_support( MBEDTLS_AESNI_CLMUL ) ) {
marcozecchini 0:9fca2b23d0ba 219 unsigned char h[16];
marcozecchini 0:9fca2b23d0ba 220
marcozecchini 0:9fca2b23d0ba 221 PUT_UINT32_BE( ctx->HH[8] >> 32, h, 0 );
marcozecchini 0:9fca2b23d0ba 222 PUT_UINT32_BE( ctx->HH[8], h, 4 );
marcozecchini 0:9fca2b23d0ba 223 PUT_UINT32_BE( ctx->HL[8] >> 32, h, 8 );
marcozecchini 0:9fca2b23d0ba 224 PUT_UINT32_BE( ctx->HL[8], h, 12 );
marcozecchini 0:9fca2b23d0ba 225
marcozecchini 0:9fca2b23d0ba 226 mbedtls_aesni_gcm_mult( output, x, h );
marcozecchini 0:9fca2b23d0ba 227 return;
marcozecchini 0:9fca2b23d0ba 228 }
marcozecchini 0:9fca2b23d0ba 229 #endif /* MBEDTLS_AESNI_C && MBEDTLS_HAVE_X86_64 */
marcozecchini 0:9fca2b23d0ba 230
marcozecchini 0:9fca2b23d0ba 231 lo = x[15] & 0xf;
marcozecchini 0:9fca2b23d0ba 232
marcozecchini 0:9fca2b23d0ba 233 zh = ctx->HH[lo];
marcozecchini 0:9fca2b23d0ba 234 zl = ctx->HL[lo];
marcozecchini 0:9fca2b23d0ba 235
marcozecchini 0:9fca2b23d0ba 236 for( i = 15; i >= 0; i-- )
marcozecchini 0:9fca2b23d0ba 237 {
marcozecchini 0:9fca2b23d0ba 238 lo = x[i] & 0xf;
marcozecchini 0:9fca2b23d0ba 239 hi = x[i] >> 4;
marcozecchini 0:9fca2b23d0ba 240
marcozecchini 0:9fca2b23d0ba 241 if( i != 15 )
marcozecchini 0:9fca2b23d0ba 242 {
marcozecchini 0:9fca2b23d0ba 243 rem = (unsigned char) zl & 0xf;
marcozecchini 0:9fca2b23d0ba 244 zl = ( zh << 60 ) | ( zl >> 4 );
marcozecchini 0:9fca2b23d0ba 245 zh = ( zh >> 4 );
marcozecchini 0:9fca2b23d0ba 246 zh ^= (uint64_t) last4[rem] << 48;
marcozecchini 0:9fca2b23d0ba 247 zh ^= ctx->HH[lo];
marcozecchini 0:9fca2b23d0ba 248 zl ^= ctx->HL[lo];
marcozecchini 0:9fca2b23d0ba 249
marcozecchini 0:9fca2b23d0ba 250 }
marcozecchini 0:9fca2b23d0ba 251
marcozecchini 0:9fca2b23d0ba 252 rem = (unsigned char) zl & 0xf;
marcozecchini 0:9fca2b23d0ba 253 zl = ( zh << 60 ) | ( zl >> 4 );
marcozecchini 0:9fca2b23d0ba 254 zh = ( zh >> 4 );
marcozecchini 0:9fca2b23d0ba 255 zh ^= (uint64_t) last4[rem] << 48;
marcozecchini 0:9fca2b23d0ba 256 zh ^= ctx->HH[hi];
marcozecchini 0:9fca2b23d0ba 257 zl ^= ctx->HL[hi];
marcozecchini 0:9fca2b23d0ba 258 }
marcozecchini 0:9fca2b23d0ba 259
marcozecchini 0:9fca2b23d0ba 260 PUT_UINT32_BE( zh >> 32, output, 0 );
marcozecchini 0:9fca2b23d0ba 261 PUT_UINT32_BE( zh, output, 4 );
marcozecchini 0:9fca2b23d0ba 262 PUT_UINT32_BE( zl >> 32, output, 8 );
marcozecchini 0:9fca2b23d0ba 263 PUT_UINT32_BE( zl, output, 12 );
marcozecchini 0:9fca2b23d0ba 264 }
marcozecchini 0:9fca2b23d0ba 265
marcozecchini 0:9fca2b23d0ba 266 int mbedtls_gcm_starts( mbedtls_gcm_context *ctx,
marcozecchini 0:9fca2b23d0ba 267 int mode,
marcozecchini 0:9fca2b23d0ba 268 const unsigned char *iv,
marcozecchini 0:9fca2b23d0ba 269 size_t iv_len,
marcozecchini 0:9fca2b23d0ba 270 const unsigned char *add,
marcozecchini 0:9fca2b23d0ba 271 size_t add_len )
marcozecchini 0:9fca2b23d0ba 272 {
marcozecchini 0:9fca2b23d0ba 273 int ret;
marcozecchini 0:9fca2b23d0ba 274 unsigned char work_buf[16];
marcozecchini 0:9fca2b23d0ba 275 size_t i;
marcozecchini 0:9fca2b23d0ba 276 const unsigned char *p;
marcozecchini 0:9fca2b23d0ba 277 size_t use_len, olen = 0;
marcozecchini 0:9fca2b23d0ba 278
marcozecchini 0:9fca2b23d0ba 279 /* IV and AD are limited to 2^64 bits, so 2^61 bytes */
marcozecchini 0:9fca2b23d0ba 280 /* IV is not allowed to be zero length */
marcozecchini 0:9fca2b23d0ba 281 if( iv_len == 0 ||
marcozecchini 0:9fca2b23d0ba 282 ( (uint64_t) iv_len ) >> 61 != 0 ||
marcozecchini 0:9fca2b23d0ba 283 ( (uint64_t) add_len ) >> 61 != 0 )
marcozecchini 0:9fca2b23d0ba 284 {
marcozecchini 0:9fca2b23d0ba 285 return( MBEDTLS_ERR_GCM_BAD_INPUT );
marcozecchini 0:9fca2b23d0ba 286 }
marcozecchini 0:9fca2b23d0ba 287
marcozecchini 0:9fca2b23d0ba 288 memset( ctx->y, 0x00, sizeof(ctx->y) );
marcozecchini 0:9fca2b23d0ba 289 memset( ctx->buf, 0x00, sizeof(ctx->buf) );
marcozecchini 0:9fca2b23d0ba 290
marcozecchini 0:9fca2b23d0ba 291 ctx->mode = mode;
marcozecchini 0:9fca2b23d0ba 292 ctx->len = 0;
marcozecchini 0:9fca2b23d0ba 293 ctx->add_len = 0;
marcozecchini 0:9fca2b23d0ba 294
marcozecchini 0:9fca2b23d0ba 295 if( iv_len == 12 )
marcozecchini 0:9fca2b23d0ba 296 {
marcozecchini 0:9fca2b23d0ba 297 memcpy( ctx->y, iv, iv_len );
marcozecchini 0:9fca2b23d0ba 298 ctx->y[15] = 1;
marcozecchini 0:9fca2b23d0ba 299 }
marcozecchini 0:9fca2b23d0ba 300 else
marcozecchini 0:9fca2b23d0ba 301 {
marcozecchini 0:9fca2b23d0ba 302 memset( work_buf, 0x00, 16 );
marcozecchini 0:9fca2b23d0ba 303 PUT_UINT32_BE( iv_len * 8, work_buf, 12 );
marcozecchini 0:9fca2b23d0ba 304
marcozecchini 0:9fca2b23d0ba 305 p = iv;
marcozecchini 0:9fca2b23d0ba 306 while( iv_len > 0 )
marcozecchini 0:9fca2b23d0ba 307 {
marcozecchini 0:9fca2b23d0ba 308 use_len = ( iv_len < 16 ) ? iv_len : 16;
marcozecchini 0:9fca2b23d0ba 309
marcozecchini 0:9fca2b23d0ba 310 for( i = 0; i < use_len; i++ )
marcozecchini 0:9fca2b23d0ba 311 ctx->y[i] ^= p[i];
marcozecchini 0:9fca2b23d0ba 312
marcozecchini 0:9fca2b23d0ba 313 gcm_mult( ctx, ctx->y, ctx->y );
marcozecchini 0:9fca2b23d0ba 314
marcozecchini 0:9fca2b23d0ba 315 iv_len -= use_len;
marcozecchini 0:9fca2b23d0ba 316 p += use_len;
marcozecchini 0:9fca2b23d0ba 317 }
marcozecchini 0:9fca2b23d0ba 318
marcozecchini 0:9fca2b23d0ba 319 for( i = 0; i < 16; i++ )
marcozecchini 0:9fca2b23d0ba 320 ctx->y[i] ^= work_buf[i];
marcozecchini 0:9fca2b23d0ba 321
marcozecchini 0:9fca2b23d0ba 322 gcm_mult( ctx, ctx->y, ctx->y );
marcozecchini 0:9fca2b23d0ba 323 }
marcozecchini 0:9fca2b23d0ba 324
marcozecchini 0:9fca2b23d0ba 325 if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, ctx->y, 16, ctx->base_ectr,
marcozecchini 0:9fca2b23d0ba 326 &olen ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 327 {
marcozecchini 0:9fca2b23d0ba 328 return( ret );
marcozecchini 0:9fca2b23d0ba 329 }
marcozecchini 0:9fca2b23d0ba 330
marcozecchini 0:9fca2b23d0ba 331 ctx->add_len = add_len;
marcozecchini 0:9fca2b23d0ba 332 p = add;
marcozecchini 0:9fca2b23d0ba 333 while( add_len > 0 )
marcozecchini 0:9fca2b23d0ba 334 {
marcozecchini 0:9fca2b23d0ba 335 use_len = ( add_len < 16 ) ? add_len : 16;
marcozecchini 0:9fca2b23d0ba 336
marcozecchini 0:9fca2b23d0ba 337 for( i = 0; i < use_len; i++ )
marcozecchini 0:9fca2b23d0ba 338 ctx->buf[i] ^= p[i];
marcozecchini 0:9fca2b23d0ba 339
marcozecchini 0:9fca2b23d0ba 340 gcm_mult( ctx, ctx->buf, ctx->buf );
marcozecchini 0:9fca2b23d0ba 341
marcozecchini 0:9fca2b23d0ba 342 add_len -= use_len;
marcozecchini 0:9fca2b23d0ba 343 p += use_len;
marcozecchini 0:9fca2b23d0ba 344 }
marcozecchini 0:9fca2b23d0ba 345
marcozecchini 0:9fca2b23d0ba 346 return( 0 );
marcozecchini 0:9fca2b23d0ba 347 }
marcozecchini 0:9fca2b23d0ba 348
marcozecchini 0:9fca2b23d0ba 349 int mbedtls_gcm_update( mbedtls_gcm_context *ctx,
marcozecchini 0:9fca2b23d0ba 350 size_t length,
marcozecchini 0:9fca2b23d0ba 351 const unsigned char *input,
marcozecchini 0:9fca2b23d0ba 352 unsigned char *output )
marcozecchini 0:9fca2b23d0ba 353 {
marcozecchini 0:9fca2b23d0ba 354 int ret;
marcozecchini 0:9fca2b23d0ba 355 unsigned char ectr[16];
marcozecchini 0:9fca2b23d0ba 356 size_t i;
marcozecchini 0:9fca2b23d0ba 357 const unsigned char *p;
marcozecchini 0:9fca2b23d0ba 358 unsigned char *out_p = output;
marcozecchini 0:9fca2b23d0ba 359 size_t use_len, olen = 0;
marcozecchini 0:9fca2b23d0ba 360
marcozecchini 0:9fca2b23d0ba 361 if( output > input && (size_t) ( output - input ) < length )
marcozecchini 0:9fca2b23d0ba 362 return( MBEDTLS_ERR_GCM_BAD_INPUT );
marcozecchini 0:9fca2b23d0ba 363
marcozecchini 0:9fca2b23d0ba 364 /* Total length is restricted to 2^39 - 256 bits, ie 2^36 - 2^5 bytes
marcozecchini 0:9fca2b23d0ba 365 * Also check for possible overflow */
marcozecchini 0:9fca2b23d0ba 366 if( ctx->len + length < ctx->len ||
marcozecchini 0:9fca2b23d0ba 367 (uint64_t) ctx->len + length > 0xFFFFFFFE0ull )
marcozecchini 0:9fca2b23d0ba 368 {
marcozecchini 0:9fca2b23d0ba 369 return( MBEDTLS_ERR_GCM_BAD_INPUT );
marcozecchini 0:9fca2b23d0ba 370 }
marcozecchini 0:9fca2b23d0ba 371
marcozecchini 0:9fca2b23d0ba 372 ctx->len += length;
marcozecchini 0:9fca2b23d0ba 373
marcozecchini 0:9fca2b23d0ba 374 p = input;
marcozecchini 0:9fca2b23d0ba 375 while( length > 0 )
marcozecchini 0:9fca2b23d0ba 376 {
marcozecchini 0:9fca2b23d0ba 377 use_len = ( length < 16 ) ? length : 16;
marcozecchini 0:9fca2b23d0ba 378
marcozecchini 0:9fca2b23d0ba 379 for( i = 16; i > 12; i-- )
marcozecchini 0:9fca2b23d0ba 380 if( ++ctx->y[i - 1] != 0 )
marcozecchini 0:9fca2b23d0ba 381 break;
marcozecchini 0:9fca2b23d0ba 382
marcozecchini 0:9fca2b23d0ba 383 if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, ctx->y, 16, ectr,
marcozecchini 0:9fca2b23d0ba 384 &olen ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 385 {
marcozecchini 0:9fca2b23d0ba 386 return( ret );
marcozecchini 0:9fca2b23d0ba 387 }
marcozecchini 0:9fca2b23d0ba 388
marcozecchini 0:9fca2b23d0ba 389 for( i = 0; i < use_len; i++ )
marcozecchini 0:9fca2b23d0ba 390 {
marcozecchini 0:9fca2b23d0ba 391 if( ctx->mode == MBEDTLS_GCM_DECRYPT )
marcozecchini 0:9fca2b23d0ba 392 ctx->buf[i] ^= p[i];
marcozecchini 0:9fca2b23d0ba 393 out_p[i] = ectr[i] ^ p[i];
marcozecchini 0:9fca2b23d0ba 394 if( ctx->mode == MBEDTLS_GCM_ENCRYPT )
marcozecchini 0:9fca2b23d0ba 395 ctx->buf[i] ^= out_p[i];
marcozecchini 0:9fca2b23d0ba 396 }
marcozecchini 0:9fca2b23d0ba 397
marcozecchini 0:9fca2b23d0ba 398 gcm_mult( ctx, ctx->buf, ctx->buf );
marcozecchini 0:9fca2b23d0ba 399
marcozecchini 0:9fca2b23d0ba 400 length -= use_len;
marcozecchini 0:9fca2b23d0ba 401 p += use_len;
marcozecchini 0:9fca2b23d0ba 402 out_p += use_len;
marcozecchini 0:9fca2b23d0ba 403 }
marcozecchini 0:9fca2b23d0ba 404
marcozecchini 0:9fca2b23d0ba 405 return( 0 );
marcozecchini 0:9fca2b23d0ba 406 }
marcozecchini 0:9fca2b23d0ba 407
marcozecchini 0:9fca2b23d0ba 408 int mbedtls_gcm_finish( mbedtls_gcm_context *ctx,
marcozecchini 0:9fca2b23d0ba 409 unsigned char *tag,
marcozecchini 0:9fca2b23d0ba 410 size_t tag_len )
marcozecchini 0:9fca2b23d0ba 411 {
marcozecchini 0:9fca2b23d0ba 412 unsigned char work_buf[16];
marcozecchini 0:9fca2b23d0ba 413 size_t i;
marcozecchini 0:9fca2b23d0ba 414 uint64_t orig_len = ctx->len * 8;
marcozecchini 0:9fca2b23d0ba 415 uint64_t orig_add_len = ctx->add_len * 8;
marcozecchini 0:9fca2b23d0ba 416
marcozecchini 0:9fca2b23d0ba 417 if( tag_len > 16 || tag_len < 4 )
marcozecchini 0:9fca2b23d0ba 418 return( MBEDTLS_ERR_GCM_BAD_INPUT );
marcozecchini 0:9fca2b23d0ba 419
marcozecchini 0:9fca2b23d0ba 420 memcpy( tag, ctx->base_ectr, tag_len );
marcozecchini 0:9fca2b23d0ba 421
marcozecchini 0:9fca2b23d0ba 422 if( orig_len || orig_add_len )
marcozecchini 0:9fca2b23d0ba 423 {
marcozecchini 0:9fca2b23d0ba 424 memset( work_buf, 0x00, 16 );
marcozecchini 0:9fca2b23d0ba 425
marcozecchini 0:9fca2b23d0ba 426 PUT_UINT32_BE( ( orig_add_len >> 32 ), work_buf, 0 );
marcozecchini 0:9fca2b23d0ba 427 PUT_UINT32_BE( ( orig_add_len ), work_buf, 4 );
marcozecchini 0:9fca2b23d0ba 428 PUT_UINT32_BE( ( orig_len >> 32 ), work_buf, 8 );
marcozecchini 0:9fca2b23d0ba 429 PUT_UINT32_BE( ( orig_len ), work_buf, 12 );
marcozecchini 0:9fca2b23d0ba 430
marcozecchini 0:9fca2b23d0ba 431 for( i = 0; i < 16; i++ )
marcozecchini 0:9fca2b23d0ba 432 ctx->buf[i] ^= work_buf[i];
marcozecchini 0:9fca2b23d0ba 433
marcozecchini 0:9fca2b23d0ba 434 gcm_mult( ctx, ctx->buf, ctx->buf );
marcozecchini 0:9fca2b23d0ba 435
marcozecchini 0:9fca2b23d0ba 436 for( i = 0; i < tag_len; i++ )
marcozecchini 0:9fca2b23d0ba 437 tag[i] ^= ctx->buf[i];
marcozecchini 0:9fca2b23d0ba 438 }
marcozecchini 0:9fca2b23d0ba 439
marcozecchini 0:9fca2b23d0ba 440 return( 0 );
marcozecchini 0:9fca2b23d0ba 441 }
marcozecchini 0:9fca2b23d0ba 442
marcozecchini 0:9fca2b23d0ba 443 int mbedtls_gcm_crypt_and_tag( mbedtls_gcm_context *ctx,
marcozecchini 0:9fca2b23d0ba 444 int mode,
marcozecchini 0:9fca2b23d0ba 445 size_t length,
marcozecchini 0:9fca2b23d0ba 446 const unsigned char *iv,
marcozecchini 0:9fca2b23d0ba 447 size_t iv_len,
marcozecchini 0:9fca2b23d0ba 448 const unsigned char *add,
marcozecchini 0:9fca2b23d0ba 449 size_t add_len,
marcozecchini 0:9fca2b23d0ba 450 const unsigned char *input,
marcozecchini 0:9fca2b23d0ba 451 unsigned char *output,
marcozecchini 0:9fca2b23d0ba 452 size_t tag_len,
marcozecchini 0:9fca2b23d0ba 453 unsigned char *tag )
marcozecchini 0:9fca2b23d0ba 454 {
marcozecchini 0:9fca2b23d0ba 455 int ret;
marcozecchini 0:9fca2b23d0ba 456
marcozecchini 0:9fca2b23d0ba 457 if( ( ret = mbedtls_gcm_starts( ctx, mode, iv, iv_len, add, add_len ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 458 return( ret );
marcozecchini 0:9fca2b23d0ba 459
marcozecchini 0:9fca2b23d0ba 460 if( ( ret = mbedtls_gcm_update( ctx, length, input, output ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 461 return( ret );
marcozecchini 0:9fca2b23d0ba 462
marcozecchini 0:9fca2b23d0ba 463 if( ( ret = mbedtls_gcm_finish( ctx, tag, tag_len ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 464 return( ret );
marcozecchini 0:9fca2b23d0ba 465
marcozecchini 0:9fca2b23d0ba 466 return( 0 );
marcozecchini 0:9fca2b23d0ba 467 }
marcozecchini 0:9fca2b23d0ba 468
marcozecchini 0:9fca2b23d0ba 469 int mbedtls_gcm_auth_decrypt( mbedtls_gcm_context *ctx,
marcozecchini 0:9fca2b23d0ba 470 size_t length,
marcozecchini 0:9fca2b23d0ba 471 const unsigned char *iv,
marcozecchini 0:9fca2b23d0ba 472 size_t iv_len,
marcozecchini 0:9fca2b23d0ba 473 const unsigned char *add,
marcozecchini 0:9fca2b23d0ba 474 size_t add_len,
marcozecchini 0:9fca2b23d0ba 475 const unsigned char *tag,
marcozecchini 0:9fca2b23d0ba 476 size_t tag_len,
marcozecchini 0:9fca2b23d0ba 477 const unsigned char *input,
marcozecchini 0:9fca2b23d0ba 478 unsigned char *output )
marcozecchini 0:9fca2b23d0ba 479 {
marcozecchini 0:9fca2b23d0ba 480 int ret;
marcozecchini 0:9fca2b23d0ba 481 unsigned char check_tag[16];
marcozecchini 0:9fca2b23d0ba 482 size_t i;
marcozecchini 0:9fca2b23d0ba 483 int diff;
marcozecchini 0:9fca2b23d0ba 484
marcozecchini 0:9fca2b23d0ba 485 if( ( ret = mbedtls_gcm_crypt_and_tag( ctx, MBEDTLS_GCM_DECRYPT, length,
marcozecchini 0:9fca2b23d0ba 486 iv, iv_len, add, add_len,
marcozecchini 0:9fca2b23d0ba 487 input, output, tag_len, check_tag ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 488 {
marcozecchini 0:9fca2b23d0ba 489 return( ret );
marcozecchini 0:9fca2b23d0ba 490 }
marcozecchini 0:9fca2b23d0ba 491
marcozecchini 0:9fca2b23d0ba 492 /* Check tag in "constant-time" */
marcozecchini 0:9fca2b23d0ba 493 for( diff = 0, i = 0; i < tag_len; i++ )
marcozecchini 0:9fca2b23d0ba 494 diff |= tag[i] ^ check_tag[i];
marcozecchini 0:9fca2b23d0ba 495
marcozecchini 0:9fca2b23d0ba 496 if( diff != 0 )
marcozecchini 0:9fca2b23d0ba 497 {
marcozecchini 0:9fca2b23d0ba 498 mbedtls_zeroize( output, length );
marcozecchini 0:9fca2b23d0ba 499 return( MBEDTLS_ERR_GCM_AUTH_FAILED );
marcozecchini 0:9fca2b23d0ba 500 }
marcozecchini 0:9fca2b23d0ba 501
marcozecchini 0:9fca2b23d0ba 502 return( 0 );
marcozecchini 0:9fca2b23d0ba 503 }
marcozecchini 0:9fca2b23d0ba 504
marcozecchini 0:9fca2b23d0ba 505 void mbedtls_gcm_free( mbedtls_gcm_context *ctx )
marcozecchini 0:9fca2b23d0ba 506 {
marcozecchini 0:9fca2b23d0ba 507 mbedtls_cipher_free( &ctx->cipher_ctx );
marcozecchini 0:9fca2b23d0ba 508 mbedtls_zeroize( ctx, sizeof( mbedtls_gcm_context ) );
marcozecchini 0:9fca2b23d0ba 509 }
marcozecchini 0:9fca2b23d0ba 510
marcozecchini 0:9fca2b23d0ba 511 #if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
marcozecchini 0:9fca2b23d0ba 512 /*
marcozecchini 0:9fca2b23d0ba 513 * AES-GCM test vectors from:
marcozecchini 0:9fca2b23d0ba 514 *
marcozecchini 0:9fca2b23d0ba 515 * http://csrc.nist.gov/groups/STM/cavp/documents/mac/gcmtestvectors.zip
marcozecchini 0:9fca2b23d0ba 516 */
marcozecchini 0:9fca2b23d0ba 517 #define MAX_TESTS 6
marcozecchini 0:9fca2b23d0ba 518
marcozecchini 0:9fca2b23d0ba 519 static const int key_index[MAX_TESTS] =
marcozecchini 0:9fca2b23d0ba 520 { 0, 0, 1, 1, 1, 1 };
marcozecchini 0:9fca2b23d0ba 521
marcozecchini 0:9fca2b23d0ba 522 static const unsigned char key[MAX_TESTS][32] =
marcozecchini 0:9fca2b23d0ba 523 {
marcozecchini 0:9fca2b23d0ba 524 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
marcozecchini 0:9fca2b23d0ba 525 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
marcozecchini 0:9fca2b23d0ba 526 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
marcozecchini 0:9fca2b23d0ba 527 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
marcozecchini 0:9fca2b23d0ba 528 { 0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,
marcozecchini 0:9fca2b23d0ba 529 0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08,
marcozecchini 0:9fca2b23d0ba 530 0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,
marcozecchini 0:9fca2b23d0ba 531 0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08 },
marcozecchini 0:9fca2b23d0ba 532 };
marcozecchini 0:9fca2b23d0ba 533
marcozecchini 0:9fca2b23d0ba 534 static const size_t iv_len[MAX_TESTS] =
marcozecchini 0:9fca2b23d0ba 535 { 12, 12, 12, 12, 8, 60 };
marcozecchini 0:9fca2b23d0ba 536
marcozecchini 0:9fca2b23d0ba 537 static const int iv_index[MAX_TESTS] =
marcozecchini 0:9fca2b23d0ba 538 { 0, 0, 1, 1, 1, 2 };
marcozecchini 0:9fca2b23d0ba 539
marcozecchini 0:9fca2b23d0ba 540 static const unsigned char iv[MAX_TESTS][64] =
marcozecchini 0:9fca2b23d0ba 541 {
marcozecchini 0:9fca2b23d0ba 542 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
marcozecchini 0:9fca2b23d0ba 543 0x00, 0x00, 0x00, 0x00 },
marcozecchini 0:9fca2b23d0ba 544 { 0xca, 0xfe, 0xba, 0xbe, 0xfa, 0xce, 0xdb, 0xad,
marcozecchini 0:9fca2b23d0ba 545 0xde, 0xca, 0xf8, 0x88 },
marcozecchini 0:9fca2b23d0ba 546 { 0x93, 0x13, 0x22, 0x5d, 0xf8, 0x84, 0x06, 0xe5,
marcozecchini 0:9fca2b23d0ba 547 0x55, 0x90, 0x9c, 0x5a, 0xff, 0x52, 0x69, 0xaa,
marcozecchini 0:9fca2b23d0ba 548 0x6a, 0x7a, 0x95, 0x38, 0x53, 0x4f, 0x7d, 0xa1,
marcozecchini 0:9fca2b23d0ba 549 0xe4, 0xc3, 0x03, 0xd2, 0xa3, 0x18, 0xa7, 0x28,
marcozecchini 0:9fca2b23d0ba 550 0xc3, 0xc0, 0xc9, 0x51, 0x56, 0x80, 0x95, 0x39,
marcozecchini 0:9fca2b23d0ba 551 0xfc, 0xf0, 0xe2, 0x42, 0x9a, 0x6b, 0x52, 0x54,
marcozecchini 0:9fca2b23d0ba 552 0x16, 0xae, 0xdb, 0xf5, 0xa0, 0xde, 0x6a, 0x57,
marcozecchini 0:9fca2b23d0ba 553 0xa6, 0x37, 0xb3, 0x9b },
marcozecchini 0:9fca2b23d0ba 554 };
marcozecchini 0:9fca2b23d0ba 555
marcozecchini 0:9fca2b23d0ba 556 static const size_t add_len[MAX_TESTS] =
marcozecchini 0:9fca2b23d0ba 557 { 0, 0, 0, 20, 20, 20 };
marcozecchini 0:9fca2b23d0ba 558
marcozecchini 0:9fca2b23d0ba 559 static const int add_index[MAX_TESTS] =
marcozecchini 0:9fca2b23d0ba 560 { 0, 0, 0, 1, 1, 1 };
marcozecchini 0:9fca2b23d0ba 561
marcozecchini 0:9fca2b23d0ba 562 static const unsigned char additional[MAX_TESTS][64] =
marcozecchini 0:9fca2b23d0ba 563 {
marcozecchini 0:9fca2b23d0ba 564 { 0x00 },
marcozecchini 0:9fca2b23d0ba 565 { 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,
marcozecchini 0:9fca2b23d0ba 566 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,
marcozecchini 0:9fca2b23d0ba 567 0xab, 0xad, 0xda, 0xd2 },
marcozecchini 0:9fca2b23d0ba 568 };
marcozecchini 0:9fca2b23d0ba 569
marcozecchini 0:9fca2b23d0ba 570 static const size_t pt_len[MAX_TESTS] =
marcozecchini 0:9fca2b23d0ba 571 { 0, 16, 64, 60, 60, 60 };
marcozecchini 0:9fca2b23d0ba 572
marcozecchini 0:9fca2b23d0ba 573 static const int pt_index[MAX_TESTS] =
marcozecchini 0:9fca2b23d0ba 574 { 0, 0, 1, 1, 1, 1 };
marcozecchini 0:9fca2b23d0ba 575
marcozecchini 0:9fca2b23d0ba 576 static const unsigned char pt[MAX_TESTS][64] =
marcozecchini 0:9fca2b23d0ba 577 {
marcozecchini 0:9fca2b23d0ba 578 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
marcozecchini 0:9fca2b23d0ba 579 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
marcozecchini 0:9fca2b23d0ba 580 { 0xd9, 0x31, 0x32, 0x25, 0xf8, 0x84, 0x06, 0xe5,
marcozecchini 0:9fca2b23d0ba 581 0xa5, 0x59, 0x09, 0xc5, 0xaf, 0xf5, 0x26, 0x9a,
marcozecchini 0:9fca2b23d0ba 582 0x86, 0xa7, 0xa9, 0x53, 0x15, 0x34, 0xf7, 0xda,
marcozecchini 0:9fca2b23d0ba 583 0x2e, 0x4c, 0x30, 0x3d, 0x8a, 0x31, 0x8a, 0x72,
marcozecchini 0:9fca2b23d0ba 584 0x1c, 0x3c, 0x0c, 0x95, 0x95, 0x68, 0x09, 0x53,
marcozecchini 0:9fca2b23d0ba 585 0x2f, 0xcf, 0x0e, 0x24, 0x49, 0xa6, 0xb5, 0x25,
marcozecchini 0:9fca2b23d0ba 586 0xb1, 0x6a, 0xed, 0xf5, 0xaa, 0x0d, 0xe6, 0x57,
marcozecchini 0:9fca2b23d0ba 587 0xba, 0x63, 0x7b, 0x39, 0x1a, 0xaf, 0xd2, 0x55 },
marcozecchini 0:9fca2b23d0ba 588 };
marcozecchini 0:9fca2b23d0ba 589
marcozecchini 0:9fca2b23d0ba 590 static const unsigned char ct[MAX_TESTS * 3][64] =
marcozecchini 0:9fca2b23d0ba 591 {
marcozecchini 0:9fca2b23d0ba 592 { 0x00 },
marcozecchini 0:9fca2b23d0ba 593 { 0x03, 0x88, 0xda, 0xce, 0x60, 0xb6, 0xa3, 0x92,
marcozecchini 0:9fca2b23d0ba 594 0xf3, 0x28, 0xc2, 0xb9, 0x71, 0xb2, 0xfe, 0x78 },
marcozecchini 0:9fca2b23d0ba 595 { 0x42, 0x83, 0x1e, 0xc2, 0x21, 0x77, 0x74, 0x24,
marcozecchini 0:9fca2b23d0ba 596 0x4b, 0x72, 0x21, 0xb7, 0x84, 0xd0, 0xd4, 0x9c,
marcozecchini 0:9fca2b23d0ba 597 0xe3, 0xaa, 0x21, 0x2f, 0x2c, 0x02, 0xa4, 0xe0,
marcozecchini 0:9fca2b23d0ba 598 0x35, 0xc1, 0x7e, 0x23, 0x29, 0xac, 0xa1, 0x2e,
marcozecchini 0:9fca2b23d0ba 599 0x21, 0xd5, 0x14, 0xb2, 0x54, 0x66, 0x93, 0x1c,
marcozecchini 0:9fca2b23d0ba 600 0x7d, 0x8f, 0x6a, 0x5a, 0xac, 0x84, 0xaa, 0x05,
marcozecchini 0:9fca2b23d0ba 601 0x1b, 0xa3, 0x0b, 0x39, 0x6a, 0x0a, 0xac, 0x97,
marcozecchini 0:9fca2b23d0ba 602 0x3d, 0x58, 0xe0, 0x91, 0x47, 0x3f, 0x59, 0x85 },
marcozecchini 0:9fca2b23d0ba 603 { 0x42, 0x83, 0x1e, 0xc2, 0x21, 0x77, 0x74, 0x24,
marcozecchini 0:9fca2b23d0ba 604 0x4b, 0x72, 0x21, 0xb7, 0x84, 0xd0, 0xd4, 0x9c,
marcozecchini 0:9fca2b23d0ba 605 0xe3, 0xaa, 0x21, 0x2f, 0x2c, 0x02, 0xa4, 0xe0,
marcozecchini 0:9fca2b23d0ba 606 0x35, 0xc1, 0x7e, 0x23, 0x29, 0xac, 0xa1, 0x2e,
marcozecchini 0:9fca2b23d0ba 607 0x21, 0xd5, 0x14, 0xb2, 0x54, 0x66, 0x93, 0x1c,
marcozecchini 0:9fca2b23d0ba 608 0x7d, 0x8f, 0x6a, 0x5a, 0xac, 0x84, 0xaa, 0x05,
marcozecchini 0:9fca2b23d0ba 609 0x1b, 0xa3, 0x0b, 0x39, 0x6a, 0x0a, 0xac, 0x97,
marcozecchini 0:9fca2b23d0ba 610 0x3d, 0x58, 0xe0, 0x91 },
marcozecchini 0:9fca2b23d0ba 611 { 0x61, 0x35, 0x3b, 0x4c, 0x28, 0x06, 0x93, 0x4a,
marcozecchini 0:9fca2b23d0ba 612 0x77, 0x7f, 0xf5, 0x1f, 0xa2, 0x2a, 0x47, 0x55,
marcozecchini 0:9fca2b23d0ba 613 0x69, 0x9b, 0x2a, 0x71, 0x4f, 0xcd, 0xc6, 0xf8,
marcozecchini 0:9fca2b23d0ba 614 0x37, 0x66, 0xe5, 0xf9, 0x7b, 0x6c, 0x74, 0x23,
marcozecchini 0:9fca2b23d0ba 615 0x73, 0x80, 0x69, 0x00, 0xe4, 0x9f, 0x24, 0xb2,
marcozecchini 0:9fca2b23d0ba 616 0x2b, 0x09, 0x75, 0x44, 0xd4, 0x89, 0x6b, 0x42,
marcozecchini 0:9fca2b23d0ba 617 0x49, 0x89, 0xb5, 0xe1, 0xeb, 0xac, 0x0f, 0x07,
marcozecchini 0:9fca2b23d0ba 618 0xc2, 0x3f, 0x45, 0x98 },
marcozecchini 0:9fca2b23d0ba 619 { 0x8c, 0xe2, 0x49, 0x98, 0x62, 0x56, 0x15, 0xb6,
marcozecchini 0:9fca2b23d0ba 620 0x03, 0xa0, 0x33, 0xac, 0xa1, 0x3f, 0xb8, 0x94,
marcozecchini 0:9fca2b23d0ba 621 0xbe, 0x91, 0x12, 0xa5, 0xc3, 0xa2, 0x11, 0xa8,
marcozecchini 0:9fca2b23d0ba 622 0xba, 0x26, 0x2a, 0x3c, 0xca, 0x7e, 0x2c, 0xa7,
marcozecchini 0:9fca2b23d0ba 623 0x01, 0xe4, 0xa9, 0xa4, 0xfb, 0xa4, 0x3c, 0x90,
marcozecchini 0:9fca2b23d0ba 624 0xcc, 0xdc, 0xb2, 0x81, 0xd4, 0x8c, 0x7c, 0x6f,
marcozecchini 0:9fca2b23d0ba 625 0xd6, 0x28, 0x75, 0xd2, 0xac, 0xa4, 0x17, 0x03,
marcozecchini 0:9fca2b23d0ba 626 0x4c, 0x34, 0xae, 0xe5 },
marcozecchini 0:9fca2b23d0ba 627 { 0x00 },
marcozecchini 0:9fca2b23d0ba 628 { 0x98, 0xe7, 0x24, 0x7c, 0x07, 0xf0, 0xfe, 0x41,
marcozecchini 0:9fca2b23d0ba 629 0x1c, 0x26, 0x7e, 0x43, 0x84, 0xb0, 0xf6, 0x00 },
marcozecchini 0:9fca2b23d0ba 630 { 0x39, 0x80, 0xca, 0x0b, 0x3c, 0x00, 0xe8, 0x41,
marcozecchini 0:9fca2b23d0ba 631 0xeb, 0x06, 0xfa, 0xc4, 0x87, 0x2a, 0x27, 0x57,
marcozecchini 0:9fca2b23d0ba 632 0x85, 0x9e, 0x1c, 0xea, 0xa6, 0xef, 0xd9, 0x84,
marcozecchini 0:9fca2b23d0ba 633 0x62, 0x85, 0x93, 0xb4, 0x0c, 0xa1, 0xe1, 0x9c,
marcozecchini 0:9fca2b23d0ba 634 0x7d, 0x77, 0x3d, 0x00, 0xc1, 0x44, 0xc5, 0x25,
marcozecchini 0:9fca2b23d0ba 635 0xac, 0x61, 0x9d, 0x18, 0xc8, 0x4a, 0x3f, 0x47,
marcozecchini 0:9fca2b23d0ba 636 0x18, 0xe2, 0x44, 0x8b, 0x2f, 0xe3, 0x24, 0xd9,
marcozecchini 0:9fca2b23d0ba 637 0xcc, 0xda, 0x27, 0x10, 0xac, 0xad, 0xe2, 0x56 },
marcozecchini 0:9fca2b23d0ba 638 { 0x39, 0x80, 0xca, 0x0b, 0x3c, 0x00, 0xe8, 0x41,
marcozecchini 0:9fca2b23d0ba 639 0xeb, 0x06, 0xfa, 0xc4, 0x87, 0x2a, 0x27, 0x57,
marcozecchini 0:9fca2b23d0ba 640 0x85, 0x9e, 0x1c, 0xea, 0xa6, 0xef, 0xd9, 0x84,
marcozecchini 0:9fca2b23d0ba 641 0x62, 0x85, 0x93, 0xb4, 0x0c, 0xa1, 0xe1, 0x9c,
marcozecchini 0:9fca2b23d0ba 642 0x7d, 0x77, 0x3d, 0x00, 0xc1, 0x44, 0xc5, 0x25,
marcozecchini 0:9fca2b23d0ba 643 0xac, 0x61, 0x9d, 0x18, 0xc8, 0x4a, 0x3f, 0x47,
marcozecchini 0:9fca2b23d0ba 644 0x18, 0xe2, 0x44, 0x8b, 0x2f, 0xe3, 0x24, 0xd9,
marcozecchini 0:9fca2b23d0ba 645 0xcc, 0xda, 0x27, 0x10 },
marcozecchini 0:9fca2b23d0ba 646 { 0x0f, 0x10, 0xf5, 0x99, 0xae, 0x14, 0xa1, 0x54,
marcozecchini 0:9fca2b23d0ba 647 0xed, 0x24, 0xb3, 0x6e, 0x25, 0x32, 0x4d, 0xb8,
marcozecchini 0:9fca2b23d0ba 648 0xc5, 0x66, 0x63, 0x2e, 0xf2, 0xbb, 0xb3, 0x4f,
marcozecchini 0:9fca2b23d0ba 649 0x83, 0x47, 0x28, 0x0f, 0xc4, 0x50, 0x70, 0x57,
marcozecchini 0:9fca2b23d0ba 650 0xfd, 0xdc, 0x29, 0xdf, 0x9a, 0x47, 0x1f, 0x75,
marcozecchini 0:9fca2b23d0ba 651 0xc6, 0x65, 0x41, 0xd4, 0xd4, 0xda, 0xd1, 0xc9,
marcozecchini 0:9fca2b23d0ba 652 0xe9, 0x3a, 0x19, 0xa5, 0x8e, 0x8b, 0x47, 0x3f,
marcozecchini 0:9fca2b23d0ba 653 0xa0, 0xf0, 0x62, 0xf7 },
marcozecchini 0:9fca2b23d0ba 654 { 0xd2, 0x7e, 0x88, 0x68, 0x1c, 0xe3, 0x24, 0x3c,
marcozecchini 0:9fca2b23d0ba 655 0x48, 0x30, 0x16, 0x5a, 0x8f, 0xdc, 0xf9, 0xff,
marcozecchini 0:9fca2b23d0ba 656 0x1d, 0xe9, 0xa1, 0xd8, 0xe6, 0xb4, 0x47, 0xef,
marcozecchini 0:9fca2b23d0ba 657 0x6e, 0xf7, 0xb7, 0x98, 0x28, 0x66, 0x6e, 0x45,
marcozecchini 0:9fca2b23d0ba 658 0x81, 0xe7, 0x90, 0x12, 0xaf, 0x34, 0xdd, 0xd9,
marcozecchini 0:9fca2b23d0ba 659 0xe2, 0xf0, 0x37, 0x58, 0x9b, 0x29, 0x2d, 0xb3,
marcozecchini 0:9fca2b23d0ba 660 0xe6, 0x7c, 0x03, 0x67, 0x45, 0xfa, 0x22, 0xe7,
marcozecchini 0:9fca2b23d0ba 661 0xe9, 0xb7, 0x37, 0x3b },
marcozecchini 0:9fca2b23d0ba 662 { 0x00 },
marcozecchini 0:9fca2b23d0ba 663 { 0xce, 0xa7, 0x40, 0x3d, 0x4d, 0x60, 0x6b, 0x6e,
marcozecchini 0:9fca2b23d0ba 664 0x07, 0x4e, 0xc5, 0xd3, 0xba, 0xf3, 0x9d, 0x18 },
marcozecchini 0:9fca2b23d0ba 665 { 0x52, 0x2d, 0xc1, 0xf0, 0x99, 0x56, 0x7d, 0x07,
marcozecchini 0:9fca2b23d0ba 666 0xf4, 0x7f, 0x37, 0xa3, 0x2a, 0x84, 0x42, 0x7d,
marcozecchini 0:9fca2b23d0ba 667 0x64, 0x3a, 0x8c, 0xdc, 0xbf, 0xe5, 0xc0, 0xc9,
marcozecchini 0:9fca2b23d0ba 668 0x75, 0x98, 0xa2, 0xbd, 0x25, 0x55, 0xd1, 0xaa,
marcozecchini 0:9fca2b23d0ba 669 0x8c, 0xb0, 0x8e, 0x48, 0x59, 0x0d, 0xbb, 0x3d,
marcozecchini 0:9fca2b23d0ba 670 0xa7, 0xb0, 0x8b, 0x10, 0x56, 0x82, 0x88, 0x38,
marcozecchini 0:9fca2b23d0ba 671 0xc5, 0xf6, 0x1e, 0x63, 0x93, 0xba, 0x7a, 0x0a,
marcozecchini 0:9fca2b23d0ba 672 0xbc, 0xc9, 0xf6, 0x62, 0x89, 0x80, 0x15, 0xad },
marcozecchini 0:9fca2b23d0ba 673 { 0x52, 0x2d, 0xc1, 0xf0, 0x99, 0x56, 0x7d, 0x07,
marcozecchini 0:9fca2b23d0ba 674 0xf4, 0x7f, 0x37, 0xa3, 0x2a, 0x84, 0x42, 0x7d,
marcozecchini 0:9fca2b23d0ba 675 0x64, 0x3a, 0x8c, 0xdc, 0xbf, 0xe5, 0xc0, 0xc9,
marcozecchini 0:9fca2b23d0ba 676 0x75, 0x98, 0xa2, 0xbd, 0x25, 0x55, 0xd1, 0xaa,
marcozecchini 0:9fca2b23d0ba 677 0x8c, 0xb0, 0x8e, 0x48, 0x59, 0x0d, 0xbb, 0x3d,
marcozecchini 0:9fca2b23d0ba 678 0xa7, 0xb0, 0x8b, 0x10, 0x56, 0x82, 0x88, 0x38,
marcozecchini 0:9fca2b23d0ba 679 0xc5, 0xf6, 0x1e, 0x63, 0x93, 0xba, 0x7a, 0x0a,
marcozecchini 0:9fca2b23d0ba 680 0xbc, 0xc9, 0xf6, 0x62 },
marcozecchini 0:9fca2b23d0ba 681 { 0xc3, 0x76, 0x2d, 0xf1, 0xca, 0x78, 0x7d, 0x32,
marcozecchini 0:9fca2b23d0ba 682 0xae, 0x47, 0xc1, 0x3b, 0xf1, 0x98, 0x44, 0xcb,
marcozecchini 0:9fca2b23d0ba 683 0xaf, 0x1a, 0xe1, 0x4d, 0x0b, 0x97, 0x6a, 0xfa,
marcozecchini 0:9fca2b23d0ba 684 0xc5, 0x2f, 0xf7, 0xd7, 0x9b, 0xba, 0x9d, 0xe0,
marcozecchini 0:9fca2b23d0ba 685 0xfe, 0xb5, 0x82, 0xd3, 0x39, 0x34, 0xa4, 0xf0,
marcozecchini 0:9fca2b23d0ba 686 0x95, 0x4c, 0xc2, 0x36, 0x3b, 0xc7, 0x3f, 0x78,
marcozecchini 0:9fca2b23d0ba 687 0x62, 0xac, 0x43, 0x0e, 0x64, 0xab, 0xe4, 0x99,
marcozecchini 0:9fca2b23d0ba 688 0xf4, 0x7c, 0x9b, 0x1f },
marcozecchini 0:9fca2b23d0ba 689 { 0x5a, 0x8d, 0xef, 0x2f, 0x0c, 0x9e, 0x53, 0xf1,
marcozecchini 0:9fca2b23d0ba 690 0xf7, 0x5d, 0x78, 0x53, 0x65, 0x9e, 0x2a, 0x20,
marcozecchini 0:9fca2b23d0ba 691 0xee, 0xb2, 0xb2, 0x2a, 0xaf, 0xde, 0x64, 0x19,
marcozecchini 0:9fca2b23d0ba 692 0xa0, 0x58, 0xab, 0x4f, 0x6f, 0x74, 0x6b, 0xf4,
marcozecchini 0:9fca2b23d0ba 693 0x0f, 0xc0, 0xc3, 0xb7, 0x80, 0xf2, 0x44, 0x45,
marcozecchini 0:9fca2b23d0ba 694 0x2d, 0xa3, 0xeb, 0xf1, 0xc5, 0xd8, 0x2c, 0xde,
marcozecchini 0:9fca2b23d0ba 695 0xa2, 0x41, 0x89, 0x97, 0x20, 0x0e, 0xf8, 0x2e,
marcozecchini 0:9fca2b23d0ba 696 0x44, 0xae, 0x7e, 0x3f },
marcozecchini 0:9fca2b23d0ba 697 };
marcozecchini 0:9fca2b23d0ba 698
marcozecchini 0:9fca2b23d0ba 699 static const unsigned char tag[MAX_TESTS * 3][16] =
marcozecchini 0:9fca2b23d0ba 700 {
marcozecchini 0:9fca2b23d0ba 701 { 0x58, 0xe2, 0xfc, 0xce, 0xfa, 0x7e, 0x30, 0x61,
marcozecchini 0:9fca2b23d0ba 702 0x36, 0x7f, 0x1d, 0x57, 0xa4, 0xe7, 0x45, 0x5a },
marcozecchini 0:9fca2b23d0ba 703 { 0xab, 0x6e, 0x47, 0xd4, 0x2c, 0xec, 0x13, 0xbd,
marcozecchini 0:9fca2b23d0ba 704 0xf5, 0x3a, 0x67, 0xb2, 0x12, 0x57, 0xbd, 0xdf },
marcozecchini 0:9fca2b23d0ba 705 { 0x4d, 0x5c, 0x2a, 0xf3, 0x27, 0xcd, 0x64, 0xa6,
marcozecchini 0:9fca2b23d0ba 706 0x2c, 0xf3, 0x5a, 0xbd, 0x2b, 0xa6, 0xfa, 0xb4 },
marcozecchini 0:9fca2b23d0ba 707 { 0x5b, 0xc9, 0x4f, 0xbc, 0x32, 0x21, 0xa5, 0xdb,
marcozecchini 0:9fca2b23d0ba 708 0x94, 0xfa, 0xe9, 0x5a, 0xe7, 0x12, 0x1a, 0x47 },
marcozecchini 0:9fca2b23d0ba 709 { 0x36, 0x12, 0xd2, 0xe7, 0x9e, 0x3b, 0x07, 0x85,
marcozecchini 0:9fca2b23d0ba 710 0x56, 0x1b, 0xe1, 0x4a, 0xac, 0xa2, 0xfc, 0xcb },
marcozecchini 0:9fca2b23d0ba 711 { 0x61, 0x9c, 0xc5, 0xae, 0xff, 0xfe, 0x0b, 0xfa,
marcozecchini 0:9fca2b23d0ba 712 0x46, 0x2a, 0xf4, 0x3c, 0x16, 0x99, 0xd0, 0x50 },
marcozecchini 0:9fca2b23d0ba 713 { 0xcd, 0x33, 0xb2, 0x8a, 0xc7, 0x73, 0xf7, 0x4b,
marcozecchini 0:9fca2b23d0ba 714 0xa0, 0x0e, 0xd1, 0xf3, 0x12, 0x57, 0x24, 0x35 },
marcozecchini 0:9fca2b23d0ba 715 { 0x2f, 0xf5, 0x8d, 0x80, 0x03, 0x39, 0x27, 0xab,
marcozecchini 0:9fca2b23d0ba 716 0x8e, 0xf4, 0xd4, 0x58, 0x75, 0x14, 0xf0, 0xfb },
marcozecchini 0:9fca2b23d0ba 717 { 0x99, 0x24, 0xa7, 0xc8, 0x58, 0x73, 0x36, 0xbf,
marcozecchini 0:9fca2b23d0ba 718 0xb1, 0x18, 0x02, 0x4d, 0xb8, 0x67, 0x4a, 0x14 },
marcozecchini 0:9fca2b23d0ba 719 { 0x25, 0x19, 0x49, 0x8e, 0x80, 0xf1, 0x47, 0x8f,
marcozecchini 0:9fca2b23d0ba 720 0x37, 0xba, 0x55, 0xbd, 0x6d, 0x27, 0x61, 0x8c },
marcozecchini 0:9fca2b23d0ba 721 { 0x65, 0xdc, 0xc5, 0x7f, 0xcf, 0x62, 0x3a, 0x24,
marcozecchini 0:9fca2b23d0ba 722 0x09, 0x4f, 0xcc, 0xa4, 0x0d, 0x35, 0x33, 0xf8 },
marcozecchini 0:9fca2b23d0ba 723 { 0xdc, 0xf5, 0x66, 0xff, 0x29, 0x1c, 0x25, 0xbb,
marcozecchini 0:9fca2b23d0ba 724 0xb8, 0x56, 0x8f, 0xc3, 0xd3, 0x76, 0xa6, 0xd9 },
marcozecchini 0:9fca2b23d0ba 725 { 0x53, 0x0f, 0x8a, 0xfb, 0xc7, 0x45, 0x36, 0xb9,
marcozecchini 0:9fca2b23d0ba 726 0xa9, 0x63, 0xb4, 0xf1, 0xc4, 0xcb, 0x73, 0x8b },
marcozecchini 0:9fca2b23d0ba 727 { 0xd0, 0xd1, 0xc8, 0xa7, 0x99, 0x99, 0x6b, 0xf0,
marcozecchini 0:9fca2b23d0ba 728 0x26, 0x5b, 0x98, 0xb5, 0xd4, 0x8a, 0xb9, 0x19 },
marcozecchini 0:9fca2b23d0ba 729 { 0xb0, 0x94, 0xda, 0xc5, 0xd9, 0x34, 0x71, 0xbd,
marcozecchini 0:9fca2b23d0ba 730 0xec, 0x1a, 0x50, 0x22, 0x70, 0xe3, 0xcc, 0x6c },
marcozecchini 0:9fca2b23d0ba 731 { 0x76, 0xfc, 0x6e, 0xce, 0x0f, 0x4e, 0x17, 0x68,
marcozecchini 0:9fca2b23d0ba 732 0xcd, 0xdf, 0x88, 0x53, 0xbb, 0x2d, 0x55, 0x1b },
marcozecchini 0:9fca2b23d0ba 733 { 0x3a, 0x33, 0x7d, 0xbf, 0x46, 0xa7, 0x92, 0xc4,
marcozecchini 0:9fca2b23d0ba 734 0x5e, 0x45, 0x49, 0x13, 0xfe, 0x2e, 0xa8, 0xf2 },
marcozecchini 0:9fca2b23d0ba 735 { 0xa4, 0x4a, 0x82, 0x66, 0xee, 0x1c, 0x8e, 0xb0,
marcozecchini 0:9fca2b23d0ba 736 0xc8, 0xb5, 0xd4, 0xcf, 0x5a, 0xe9, 0xf1, 0x9a },
marcozecchini 0:9fca2b23d0ba 737 };
marcozecchini 0:9fca2b23d0ba 738
marcozecchini 0:9fca2b23d0ba 739 int mbedtls_gcm_self_test( int verbose )
marcozecchini 0:9fca2b23d0ba 740 {
marcozecchini 0:9fca2b23d0ba 741 mbedtls_gcm_context ctx;
marcozecchini 0:9fca2b23d0ba 742 unsigned char buf[64];
marcozecchini 0:9fca2b23d0ba 743 unsigned char tag_buf[16];
marcozecchini 0:9fca2b23d0ba 744 int i, j, ret;
marcozecchini 0:9fca2b23d0ba 745 mbedtls_cipher_id_t cipher = MBEDTLS_CIPHER_ID_AES;
marcozecchini 0:9fca2b23d0ba 746
marcozecchini 0:9fca2b23d0ba 747 mbedtls_gcm_init( &ctx );
marcozecchini 0:9fca2b23d0ba 748
marcozecchini 0:9fca2b23d0ba 749 for( j = 0; j < 3; j++ )
marcozecchini 0:9fca2b23d0ba 750 {
marcozecchini 0:9fca2b23d0ba 751 int key_len = 128 + 64 * j;
marcozecchini 0:9fca2b23d0ba 752
marcozecchini 0:9fca2b23d0ba 753 for( i = 0; i < MAX_TESTS; i++ )
marcozecchini 0:9fca2b23d0ba 754 {
marcozecchini 0:9fca2b23d0ba 755 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 756 mbedtls_printf( " AES-GCM-%3d #%d (%s): ",
marcozecchini 0:9fca2b23d0ba 757 key_len, i, "enc" );
marcozecchini 0:9fca2b23d0ba 758
marcozecchini 0:9fca2b23d0ba 759 mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]], key_len );
marcozecchini 0:9fca2b23d0ba 760
marcozecchini 0:9fca2b23d0ba 761 ret = mbedtls_gcm_crypt_and_tag( &ctx, MBEDTLS_GCM_ENCRYPT,
marcozecchini 0:9fca2b23d0ba 762 pt_len[i],
marcozecchini 0:9fca2b23d0ba 763 iv[iv_index[i]], iv_len[i],
marcozecchini 0:9fca2b23d0ba 764 additional[add_index[i]], add_len[i],
marcozecchini 0:9fca2b23d0ba 765 pt[pt_index[i]], buf, 16, tag_buf );
marcozecchini 0:9fca2b23d0ba 766
marcozecchini 0:9fca2b23d0ba 767 if( ret != 0 ||
marcozecchini 0:9fca2b23d0ba 768 memcmp( buf, ct[j * 6 + i], pt_len[i] ) != 0 ||
marcozecchini 0:9fca2b23d0ba 769 memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )
marcozecchini 0:9fca2b23d0ba 770 {
marcozecchini 0:9fca2b23d0ba 771 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 772 mbedtls_printf( "failed\n" );
marcozecchini 0:9fca2b23d0ba 773
marcozecchini 0:9fca2b23d0ba 774 return( 1 );
marcozecchini 0:9fca2b23d0ba 775 }
marcozecchini 0:9fca2b23d0ba 776
marcozecchini 0:9fca2b23d0ba 777 mbedtls_gcm_free( &ctx );
marcozecchini 0:9fca2b23d0ba 778
marcozecchini 0:9fca2b23d0ba 779 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 780 mbedtls_printf( "passed\n" );
marcozecchini 0:9fca2b23d0ba 781
marcozecchini 0:9fca2b23d0ba 782 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 783 mbedtls_printf( " AES-GCM-%3d #%d (%s): ",
marcozecchini 0:9fca2b23d0ba 784 key_len, i, "dec" );
marcozecchini 0:9fca2b23d0ba 785
marcozecchini 0:9fca2b23d0ba 786 mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]], key_len );
marcozecchini 0:9fca2b23d0ba 787
marcozecchini 0:9fca2b23d0ba 788 ret = mbedtls_gcm_crypt_and_tag( &ctx, MBEDTLS_GCM_DECRYPT,
marcozecchini 0:9fca2b23d0ba 789 pt_len[i],
marcozecchini 0:9fca2b23d0ba 790 iv[iv_index[i]], iv_len[i],
marcozecchini 0:9fca2b23d0ba 791 additional[add_index[i]], add_len[i],
marcozecchini 0:9fca2b23d0ba 792 ct[j * 6 + i], buf, 16, tag_buf );
marcozecchini 0:9fca2b23d0ba 793
marcozecchini 0:9fca2b23d0ba 794 if( ret != 0 ||
marcozecchini 0:9fca2b23d0ba 795 memcmp( buf, pt[pt_index[i]], pt_len[i] ) != 0 ||
marcozecchini 0:9fca2b23d0ba 796 memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )
marcozecchini 0:9fca2b23d0ba 797 {
marcozecchini 0:9fca2b23d0ba 798 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 799 mbedtls_printf( "failed\n" );
marcozecchini 0:9fca2b23d0ba 800
marcozecchini 0:9fca2b23d0ba 801 return( 1 );
marcozecchini 0:9fca2b23d0ba 802 }
marcozecchini 0:9fca2b23d0ba 803
marcozecchini 0:9fca2b23d0ba 804 mbedtls_gcm_free( &ctx );
marcozecchini 0:9fca2b23d0ba 805
marcozecchini 0:9fca2b23d0ba 806 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 807 mbedtls_printf( "passed\n" );
marcozecchini 0:9fca2b23d0ba 808
marcozecchini 0:9fca2b23d0ba 809 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 810 mbedtls_printf( " AES-GCM-%3d #%d split (%s): ",
marcozecchini 0:9fca2b23d0ba 811 key_len, i, "enc" );
marcozecchini 0:9fca2b23d0ba 812
marcozecchini 0:9fca2b23d0ba 813 mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]], key_len );
marcozecchini 0:9fca2b23d0ba 814
marcozecchini 0:9fca2b23d0ba 815 ret = mbedtls_gcm_starts( &ctx, MBEDTLS_GCM_ENCRYPT,
marcozecchini 0:9fca2b23d0ba 816 iv[iv_index[i]], iv_len[i],
marcozecchini 0:9fca2b23d0ba 817 additional[add_index[i]], add_len[i] );
marcozecchini 0:9fca2b23d0ba 818 if( ret != 0 )
marcozecchini 0:9fca2b23d0ba 819 {
marcozecchini 0:9fca2b23d0ba 820 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 821 mbedtls_printf( "failed\n" );
marcozecchini 0:9fca2b23d0ba 822
marcozecchini 0:9fca2b23d0ba 823 return( 1 );
marcozecchini 0:9fca2b23d0ba 824 }
marcozecchini 0:9fca2b23d0ba 825
marcozecchini 0:9fca2b23d0ba 826 if( pt_len[i] > 32 )
marcozecchini 0:9fca2b23d0ba 827 {
marcozecchini 0:9fca2b23d0ba 828 size_t rest_len = pt_len[i] - 32;
marcozecchini 0:9fca2b23d0ba 829 ret = mbedtls_gcm_update( &ctx, 32, pt[pt_index[i]], buf );
marcozecchini 0:9fca2b23d0ba 830 if( ret != 0 )
marcozecchini 0:9fca2b23d0ba 831 {
marcozecchini 0:9fca2b23d0ba 832 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 833 mbedtls_printf( "failed\n" );
marcozecchini 0:9fca2b23d0ba 834
marcozecchini 0:9fca2b23d0ba 835 return( 1 );
marcozecchini 0:9fca2b23d0ba 836 }
marcozecchini 0:9fca2b23d0ba 837
marcozecchini 0:9fca2b23d0ba 838 ret = mbedtls_gcm_update( &ctx, rest_len, pt[pt_index[i]] + 32,
marcozecchini 0:9fca2b23d0ba 839 buf + 32 );
marcozecchini 0:9fca2b23d0ba 840 if( ret != 0 )
marcozecchini 0:9fca2b23d0ba 841 {
marcozecchini 0:9fca2b23d0ba 842 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 843 mbedtls_printf( "failed\n" );
marcozecchini 0:9fca2b23d0ba 844
marcozecchini 0:9fca2b23d0ba 845 return( 1 );
marcozecchini 0:9fca2b23d0ba 846 }
marcozecchini 0:9fca2b23d0ba 847 }
marcozecchini 0:9fca2b23d0ba 848 else
marcozecchini 0:9fca2b23d0ba 849 {
marcozecchini 0:9fca2b23d0ba 850 ret = mbedtls_gcm_update( &ctx, pt_len[i], pt[pt_index[i]], buf );
marcozecchini 0:9fca2b23d0ba 851 if( ret != 0 )
marcozecchini 0:9fca2b23d0ba 852 {
marcozecchini 0:9fca2b23d0ba 853 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 854 mbedtls_printf( "failed\n" );
marcozecchini 0:9fca2b23d0ba 855
marcozecchini 0:9fca2b23d0ba 856 return( 1 );
marcozecchini 0:9fca2b23d0ba 857 }
marcozecchini 0:9fca2b23d0ba 858 }
marcozecchini 0:9fca2b23d0ba 859
marcozecchini 0:9fca2b23d0ba 860 ret = mbedtls_gcm_finish( &ctx, tag_buf, 16 );
marcozecchini 0:9fca2b23d0ba 861 if( ret != 0 ||
marcozecchini 0:9fca2b23d0ba 862 memcmp( buf, ct[j * 6 + i], pt_len[i] ) != 0 ||
marcozecchini 0:9fca2b23d0ba 863 memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )
marcozecchini 0:9fca2b23d0ba 864 {
marcozecchini 0:9fca2b23d0ba 865 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 866 mbedtls_printf( "failed\n" );
marcozecchini 0:9fca2b23d0ba 867
marcozecchini 0:9fca2b23d0ba 868 return( 1 );
marcozecchini 0:9fca2b23d0ba 869 }
marcozecchini 0:9fca2b23d0ba 870
marcozecchini 0:9fca2b23d0ba 871 mbedtls_gcm_free( &ctx );
marcozecchini 0:9fca2b23d0ba 872
marcozecchini 0:9fca2b23d0ba 873 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 874 mbedtls_printf( "passed\n" );
marcozecchini 0:9fca2b23d0ba 875
marcozecchini 0:9fca2b23d0ba 876 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 877 mbedtls_printf( " AES-GCM-%3d #%d split (%s): ",
marcozecchini 0:9fca2b23d0ba 878 key_len, i, "dec" );
marcozecchini 0:9fca2b23d0ba 879
marcozecchini 0:9fca2b23d0ba 880 mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]], key_len );
marcozecchini 0:9fca2b23d0ba 881
marcozecchini 0:9fca2b23d0ba 882 ret = mbedtls_gcm_starts( &ctx, MBEDTLS_GCM_DECRYPT,
marcozecchini 0:9fca2b23d0ba 883 iv[iv_index[i]], iv_len[i],
marcozecchini 0:9fca2b23d0ba 884 additional[add_index[i]], add_len[i] );
marcozecchini 0:9fca2b23d0ba 885 if( ret != 0 )
marcozecchini 0:9fca2b23d0ba 886 {
marcozecchini 0:9fca2b23d0ba 887 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 888 mbedtls_printf( "failed\n" );
marcozecchini 0:9fca2b23d0ba 889
marcozecchini 0:9fca2b23d0ba 890 return( 1 );
marcozecchini 0:9fca2b23d0ba 891 }
marcozecchini 0:9fca2b23d0ba 892
marcozecchini 0:9fca2b23d0ba 893 if( pt_len[i] > 32 )
marcozecchini 0:9fca2b23d0ba 894 {
marcozecchini 0:9fca2b23d0ba 895 size_t rest_len = pt_len[i] - 32;
marcozecchini 0:9fca2b23d0ba 896 ret = mbedtls_gcm_update( &ctx, 32, ct[j * 6 + i], buf );
marcozecchini 0:9fca2b23d0ba 897 if( ret != 0 )
marcozecchini 0:9fca2b23d0ba 898 {
marcozecchini 0:9fca2b23d0ba 899 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 900 mbedtls_printf( "failed\n" );
marcozecchini 0:9fca2b23d0ba 901
marcozecchini 0:9fca2b23d0ba 902 return( 1 );
marcozecchini 0:9fca2b23d0ba 903 }
marcozecchini 0:9fca2b23d0ba 904
marcozecchini 0:9fca2b23d0ba 905 ret = mbedtls_gcm_update( &ctx, rest_len, ct[j * 6 + i] + 32,
marcozecchini 0:9fca2b23d0ba 906 buf + 32 );
marcozecchini 0:9fca2b23d0ba 907 if( ret != 0 )
marcozecchini 0:9fca2b23d0ba 908 {
marcozecchini 0:9fca2b23d0ba 909 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 910 mbedtls_printf( "failed\n" );
marcozecchini 0:9fca2b23d0ba 911
marcozecchini 0:9fca2b23d0ba 912 return( 1 );
marcozecchini 0:9fca2b23d0ba 913 }
marcozecchini 0:9fca2b23d0ba 914 }
marcozecchini 0:9fca2b23d0ba 915 else
marcozecchini 0:9fca2b23d0ba 916 {
marcozecchini 0:9fca2b23d0ba 917 ret = mbedtls_gcm_update( &ctx, pt_len[i], ct[j * 6 + i], buf );
marcozecchini 0:9fca2b23d0ba 918 if( ret != 0 )
marcozecchini 0:9fca2b23d0ba 919 {
marcozecchini 0:9fca2b23d0ba 920 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 921 mbedtls_printf( "failed\n" );
marcozecchini 0:9fca2b23d0ba 922
marcozecchini 0:9fca2b23d0ba 923 return( 1 );
marcozecchini 0:9fca2b23d0ba 924 }
marcozecchini 0:9fca2b23d0ba 925 }
marcozecchini 0:9fca2b23d0ba 926
marcozecchini 0:9fca2b23d0ba 927 ret = mbedtls_gcm_finish( &ctx, tag_buf, 16 );
marcozecchini 0:9fca2b23d0ba 928 if( ret != 0 ||
marcozecchini 0:9fca2b23d0ba 929 memcmp( buf, pt[pt_index[i]], pt_len[i] ) != 0 ||
marcozecchini 0:9fca2b23d0ba 930 memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )
marcozecchini 0:9fca2b23d0ba 931 {
marcozecchini 0:9fca2b23d0ba 932 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 933 mbedtls_printf( "failed\n" );
marcozecchini 0:9fca2b23d0ba 934
marcozecchini 0:9fca2b23d0ba 935 return( 1 );
marcozecchini 0:9fca2b23d0ba 936 }
marcozecchini 0:9fca2b23d0ba 937
marcozecchini 0:9fca2b23d0ba 938 mbedtls_gcm_free( &ctx );
marcozecchini 0:9fca2b23d0ba 939
marcozecchini 0:9fca2b23d0ba 940 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 941 mbedtls_printf( "passed\n" );
marcozecchini 0:9fca2b23d0ba 942
marcozecchini 0:9fca2b23d0ba 943 }
marcozecchini 0:9fca2b23d0ba 944 }
marcozecchini 0:9fca2b23d0ba 945
marcozecchini 0:9fca2b23d0ba 946 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 947 mbedtls_printf( "\n" );
marcozecchini 0:9fca2b23d0ba 948
marcozecchini 0:9fca2b23d0ba 949 return( 0 );
marcozecchini 0:9fca2b23d0ba 950 }
marcozecchini 0:9fca2b23d0ba 951
marcozecchini 0:9fca2b23d0ba 952 #endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
marcozecchini 0:9fca2b23d0ba 953
marcozecchini 0:9fca2b23d0ba 954 #endif /* MBEDTLS_GCM_C */