Austin Blackstone / Mbed 2 deprecated client-lwip-lightswitch-demo-expanded

mbed client lightswitch demo

Dependencies:   mbed Socket lwip-eth lwip-sys lwip

Fork of mbed-client-classic-example-lwip by Austin Blackstone

mbedtls/source/gcm.c@11:cada08fc8a70, 2016-06-09 (annotated)

Committer:
mbedAustin
Date:
Thu Jun 09 17:08:36 2016 +0000
Revision:
11:cada08fc8a70
Commit for public Consumption

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbedAustin 11:cada08fc8a70 1 /*
mbedAustin 11:cada08fc8a70 2 * NIST SP800-38D compliant GCM implementation
mbedAustin 11:cada08fc8a70 3 *
mbedAustin 11:cada08fc8a70 4 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
mbedAustin 11:cada08fc8a70 5 * SPDX-License-Identifier: Apache-2.0
mbedAustin 11:cada08fc8a70 6 *
mbedAustin 11:cada08fc8a70 7 * Licensed under the Apache License, Version 2.0 (the "License"); you may
mbedAustin 11:cada08fc8a70 8 * not use this file except in compliance with the License.
mbedAustin 11:cada08fc8a70 9 * You may obtain a copy of the License at
mbedAustin 11:cada08fc8a70 10 *
mbedAustin 11:cada08fc8a70 11 * http://www.apache.org/licenses/LICENSE-2.0
mbedAustin 11:cada08fc8a70 12 *
mbedAustin 11:cada08fc8a70 13 * Unless required by applicable law or agreed to in writing, software
mbedAustin 11:cada08fc8a70 14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
mbedAustin 11:cada08fc8a70 15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbedAustin 11:cada08fc8a70 16 * See the License for the specific language governing permissions and
mbedAustin 11:cada08fc8a70 17 * limitations under the License.
mbedAustin 11:cada08fc8a70 18 *
mbedAustin 11:cada08fc8a70 19 * This file is part of mbed TLS (https://tls.mbed.org)
mbedAustin 11:cada08fc8a70 20 */
mbedAustin 11:cada08fc8a70 21
mbedAustin 11:cada08fc8a70 22 /*
mbedAustin 11:cada08fc8a70 23 * http://csrc.nist.gov/publications/nistpubs/800-38D/SP-800-38D.pdf
mbedAustin 11:cada08fc8a70 24 *
mbedAustin 11:cada08fc8a70 25 * See also:
mbedAustin 11:cada08fc8a70 26 * [MGV] http://csrc.nist.gov/groups/ST/toolkit/BCM/documents/proposedmodes/gcm/gcm-revised-spec.pdf
mbedAustin 11:cada08fc8a70 27 *
mbedAustin 11:cada08fc8a70 28 * We use the algorithm described as Shoup's method with 4-bit tables in
mbedAustin 11:cada08fc8a70 29 * [MGV] 4.1, pp. 12-13, to enhance speed without using too much memory.
mbedAustin 11:cada08fc8a70 30 */
mbedAustin 11:cada08fc8a70 31
mbedAustin 11:cada08fc8a70 32 #if !defined(MBEDTLS_CONFIG_FILE)
mbedAustin 11:cada08fc8a70 33 #include "mbedtls/config.h"
mbedAustin 11:cada08fc8a70 34 #else
mbedAustin 11:cada08fc8a70 35 #include MBEDTLS_CONFIG_FILE
mbedAustin 11:cada08fc8a70 36 #endif
mbedAustin 11:cada08fc8a70 37
mbedAustin 11:cada08fc8a70 38 #if defined(MBEDTLS_GCM_C)
mbedAustin 11:cada08fc8a70 39
mbedAustin 11:cada08fc8a70 40 #include "mbedtls/gcm.h"
mbedAustin 11:cada08fc8a70 41
mbedAustin 11:cada08fc8a70 42 #include <string.h>
mbedAustin 11:cada08fc8a70 43
mbedAustin 11:cada08fc8a70 44 #if defined(MBEDTLS_AESNI_C)
mbedAustin 11:cada08fc8a70 45 #include "mbedtls/aesni.h"
mbedAustin 11:cada08fc8a70 46 #endif
mbedAustin 11:cada08fc8a70 47
mbedAustin 11:cada08fc8a70 48 #if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
mbedAustin 11:cada08fc8a70 49 #if defined(MBEDTLS_PLATFORM_C)
mbedAustin 11:cada08fc8a70 50 #include "mbedtls/platform.h"
mbedAustin 11:cada08fc8a70 51 #else
mbedAustin 11:cada08fc8a70 52 #include <stdio.h>
mbedAustin 11:cada08fc8a70 53 #define mbedtls_printf printf
mbedAustin 11:cada08fc8a70 54 #endif /* MBEDTLS_PLATFORM_C */
mbedAustin 11:cada08fc8a70 55 #endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
mbedAustin 11:cada08fc8a70 56
mbedAustin 11:cada08fc8a70 57 /*
mbedAustin 11:cada08fc8a70 58 * 32-bit integer manipulation macros (big endian)
mbedAustin 11:cada08fc8a70 59 */
mbedAustin 11:cada08fc8a70 60 #ifndef GET_UINT32_BE
mbedAustin 11:cada08fc8a70 61 #define GET_UINT32_BE(n,b,i) \
mbedAustin 11:cada08fc8a70 62 { \
mbedAustin 11:cada08fc8a70 63 (n) = ( (uint32_t) (b)[(i) ] << 24 ) \
mbedAustin 11:cada08fc8a70 64 | ( (uint32_t) (b)[(i) + 1] << 16 ) \
mbedAustin 11:cada08fc8a70 65 | ( (uint32_t) (b)[(i) + 2] << 8 ) \
mbedAustin 11:cada08fc8a70 66 | ( (uint32_t) (b)[(i) + 3] ); \
mbedAustin 11:cada08fc8a70 67 }
mbedAustin 11:cada08fc8a70 68 #endif
mbedAustin 11:cada08fc8a70 69
mbedAustin 11:cada08fc8a70 70 #ifndef PUT_UINT32_BE
mbedAustin 11:cada08fc8a70 71 #define PUT_UINT32_BE(n,b,i) \
mbedAustin 11:cada08fc8a70 72 { \
mbedAustin 11:cada08fc8a70 73 (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
mbedAustin 11:cada08fc8a70 74 (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
mbedAustin 11:cada08fc8a70 75 (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
mbedAustin 11:cada08fc8a70 76 (b)[(i) + 3] = (unsigned char) ( (n) ); \
mbedAustin 11:cada08fc8a70 77 }
mbedAustin 11:cada08fc8a70 78 #endif
mbedAustin 11:cada08fc8a70 79
mbedAustin 11:cada08fc8a70 80 /* Implementation that should never be optimized out by the compiler */
mbedAustin 11:cada08fc8a70 81 static void mbedtls_zeroize( void *v, size_t n ) {
mbedAustin 11:cada08fc8a70 82 volatile unsigned char *p = v; while( n-- ) *p++ = 0;
mbedAustin 11:cada08fc8a70 83 }
mbedAustin 11:cada08fc8a70 84
mbedAustin 11:cada08fc8a70 85 /*
mbedAustin 11:cada08fc8a70 86 * Initialize a context
mbedAustin 11:cada08fc8a70 87 */
mbedAustin 11:cada08fc8a70 88 void mbedtls_gcm_init( mbedtls_gcm_context *ctx )
mbedAustin 11:cada08fc8a70 89 {
mbedAustin 11:cada08fc8a70 90 memset( ctx, 0, sizeof( mbedtls_gcm_context ) );
mbedAustin 11:cada08fc8a70 91 }
mbedAustin 11:cada08fc8a70 92
mbedAustin 11:cada08fc8a70 93 /*
mbedAustin 11:cada08fc8a70 94 * Precompute small multiples of H, that is set
mbedAustin 11:cada08fc8a70 95 * HH[i] || HL[i] = H times i,
mbedAustin 11:cada08fc8a70 96 * where i is seen as a field element as in [MGV], ie high-order bits
mbedAustin 11:cada08fc8a70 97 * correspond to low powers of P. The result is stored in the same way, that
mbedAustin 11:cada08fc8a70 98 * is the high-order bit of HH corresponds to P^0 and the low-order bit of HL
mbedAustin 11:cada08fc8a70 99 * corresponds to P^127.
mbedAustin 11:cada08fc8a70 100 */
mbedAustin 11:cada08fc8a70 101 static int gcm_gen_table( mbedtls_gcm_context *ctx )
mbedAustin 11:cada08fc8a70 102 {
mbedAustin 11:cada08fc8a70 103 int ret, i, j;
mbedAustin 11:cada08fc8a70 104 uint64_t hi, lo;
mbedAustin 11:cada08fc8a70 105 uint64_t vl, vh;
mbedAustin 11:cada08fc8a70 106 unsigned char h[16];
mbedAustin 11:cada08fc8a70 107 size_t olen = 0;
mbedAustin 11:cada08fc8a70 108
mbedAustin 11:cada08fc8a70 109 memset( h, 0, 16 );
mbedAustin 11:cada08fc8a70 110 if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, h, 16, h, &olen ) ) != 0 )
mbedAustin 11:cada08fc8a70 111 return( ret );
mbedAustin 11:cada08fc8a70 112
mbedAustin 11:cada08fc8a70 113 /* pack h as two 64-bits ints, big-endian */
mbedAustin 11:cada08fc8a70 114 GET_UINT32_BE( hi, h, 0 );
mbedAustin 11:cada08fc8a70 115 GET_UINT32_BE( lo, h, 4 );
mbedAustin 11:cada08fc8a70 116 vh = (uint64_t) hi << 32 | lo;
mbedAustin 11:cada08fc8a70 117
mbedAustin 11:cada08fc8a70 118 GET_UINT32_BE( hi, h, 8 );
mbedAustin 11:cada08fc8a70 119 GET_UINT32_BE( lo, h, 12 );
mbedAustin 11:cada08fc8a70 120 vl = (uint64_t) hi << 32 | lo;
mbedAustin 11:cada08fc8a70 121
mbedAustin 11:cada08fc8a70 122 /* 8 = 1000 corresponds to 1 in GF(2^128) */
mbedAustin 11:cada08fc8a70 123 ctx->HL[8] = vl;
mbedAustin 11:cada08fc8a70 124 ctx->HH[8] = vh;
mbedAustin 11:cada08fc8a70 125
mbedAustin 11:cada08fc8a70 126 #if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64)
mbedAustin 11:cada08fc8a70 127 /* With CLMUL support, we need only h, not the rest of the table */
mbedAustin 11:cada08fc8a70 128 if( mbedtls_aesni_has_support( MBEDTLS_AESNI_CLMUL ) )
mbedAustin 11:cada08fc8a70 129 return( 0 );
mbedAustin 11:cada08fc8a70 130 #endif
mbedAustin 11:cada08fc8a70 131
mbedAustin 11:cada08fc8a70 132 /* 0 corresponds to 0 in GF(2^128) */
mbedAustin 11:cada08fc8a70 133 ctx->HH[0] = 0;
mbedAustin 11:cada08fc8a70 134 ctx->HL[0] = 0;
mbedAustin 11:cada08fc8a70 135
mbedAustin 11:cada08fc8a70 136 for( i = 4; i > 0; i >>= 1 )
mbedAustin 11:cada08fc8a70 137 {
mbedAustin 11:cada08fc8a70 138 uint32_t T = ( vl & 1 ) * 0xe1000000U;
mbedAustin 11:cada08fc8a70 139 vl = ( vh << 63 ) | ( vl >> 1 );
mbedAustin 11:cada08fc8a70 140 vh = ( vh >> 1 ) ^ ( (uint64_t) T << 32);
mbedAustin 11:cada08fc8a70 141
mbedAustin 11:cada08fc8a70 142 ctx->HL[i] = vl;
mbedAustin 11:cada08fc8a70 143 ctx->HH[i] = vh;
mbedAustin 11:cada08fc8a70 144 }
mbedAustin 11:cada08fc8a70 145
mbedAustin 11:cada08fc8a70 146 for( i = 2; i <= 8; i *= 2 )
mbedAustin 11:cada08fc8a70 147 {
mbedAustin 11:cada08fc8a70 148 uint64_t *HiL = ctx->HL + i, *HiH = ctx->HH + i;
mbedAustin 11:cada08fc8a70 149 vh = *HiH;
mbedAustin 11:cada08fc8a70 150 vl = *HiL;
mbedAustin 11:cada08fc8a70 151 for( j = 1; j < i; j++ )
mbedAustin 11:cada08fc8a70 152 {
mbedAustin 11:cada08fc8a70 153 HiH[j] = vh ^ ctx->HH[j];
mbedAustin 11:cada08fc8a70 154 HiL[j] = vl ^ ctx->HL[j];
mbedAustin 11:cada08fc8a70 155 }
mbedAustin 11:cada08fc8a70 156 }
mbedAustin 11:cada08fc8a70 157
mbedAustin 11:cada08fc8a70 158 return( 0 );
mbedAustin 11:cada08fc8a70 159 }
mbedAustin 11:cada08fc8a70 160
mbedAustin 11:cada08fc8a70 161 int mbedtls_gcm_setkey( mbedtls_gcm_context *ctx,
mbedAustin 11:cada08fc8a70 162 mbedtls_cipher_id_t cipher,
mbedAustin 11:cada08fc8a70 163 const unsigned char *key,
mbedAustin 11:cada08fc8a70 164 unsigned int keybits )
mbedAustin 11:cada08fc8a70 165 {
mbedAustin 11:cada08fc8a70 166 int ret;
mbedAustin 11:cada08fc8a70 167 const mbedtls_cipher_info_t *cipher_info;
mbedAustin 11:cada08fc8a70 168
mbedAustin 11:cada08fc8a70 169 cipher_info = mbedtls_cipher_info_from_values( cipher, keybits, MBEDTLS_MODE_ECB );
mbedAustin 11:cada08fc8a70 170 if( cipher_info == NULL )
mbedAustin 11:cada08fc8a70 171 return( MBEDTLS_ERR_GCM_BAD_INPUT );
mbedAustin 11:cada08fc8a70 172
mbedAustin 11:cada08fc8a70 173 if( cipher_info->block_size != 16 )
mbedAustin 11:cada08fc8a70 174 return( MBEDTLS_ERR_GCM_BAD_INPUT );
mbedAustin 11:cada08fc8a70 175
mbedAustin 11:cada08fc8a70 176 mbedtls_cipher_free( &ctx->cipher_ctx );
mbedAustin 11:cada08fc8a70 177
mbedAustin 11:cada08fc8a70 178 if( ( ret = mbedtls_cipher_setup( &ctx->cipher_ctx, cipher_info ) ) != 0 )
mbedAustin 11:cada08fc8a70 179 return( ret );
mbedAustin 11:cada08fc8a70 180
mbedAustin 11:cada08fc8a70 181 if( ( ret = mbedtls_cipher_setkey( &ctx->cipher_ctx, key, keybits,
mbedAustin 11:cada08fc8a70 182 MBEDTLS_ENCRYPT ) ) != 0 )
mbedAustin 11:cada08fc8a70 183 {
mbedAustin 11:cada08fc8a70 184 return( ret );
mbedAustin 11:cada08fc8a70 185 }
mbedAustin 11:cada08fc8a70 186
mbedAustin 11:cada08fc8a70 187 if( ( ret = gcm_gen_table( ctx ) ) != 0 )
mbedAustin 11:cada08fc8a70 188 return( ret );
mbedAustin 11:cada08fc8a70 189
mbedAustin 11:cada08fc8a70 190 return( 0 );
mbedAustin 11:cada08fc8a70 191 }
mbedAustin 11:cada08fc8a70 192
mbedAustin 11:cada08fc8a70 193 /*
mbedAustin 11:cada08fc8a70 194 * Shoup's method for multiplication use this table with
mbedAustin 11:cada08fc8a70 195 * last4[x] = x times P^128
mbedAustin 11:cada08fc8a70 196 * where x and last4[x] are seen as elements of GF(2^128) as in [MGV]
mbedAustin 11:cada08fc8a70 197 */
mbedAustin 11:cada08fc8a70 198 static const uint64_t last4[16] =
mbedAustin 11:cada08fc8a70 199 {
mbedAustin 11:cada08fc8a70 200 0x0000, 0x1c20, 0x3840, 0x2460,
mbedAustin 11:cada08fc8a70 201 0x7080, 0x6ca0, 0x48c0, 0x54e0,
mbedAustin 11:cada08fc8a70 202 0xe100, 0xfd20, 0xd940, 0xc560,
mbedAustin 11:cada08fc8a70 203 0x9180, 0x8da0, 0xa9c0, 0xb5e0
mbedAustin 11:cada08fc8a70 204 };
mbedAustin 11:cada08fc8a70 205
mbedAustin 11:cada08fc8a70 206 /*
mbedAustin 11:cada08fc8a70 207 * Sets output to x times H using the precomputed tables.
mbedAustin 11:cada08fc8a70 208 * x and output are seen as elements of GF(2^128) as in [MGV].
mbedAustin 11:cada08fc8a70 209 */
mbedAustin 11:cada08fc8a70 210 static void gcm_mult( mbedtls_gcm_context *ctx, const unsigned char x[16],
mbedAustin 11:cada08fc8a70 211 unsigned char output[16] )
mbedAustin 11:cada08fc8a70 212 {
mbedAustin 11:cada08fc8a70 213 int i = 0;
mbedAustin 11:cada08fc8a70 214 unsigned char lo, hi, rem;
mbedAustin 11:cada08fc8a70 215 uint64_t zh, zl;
mbedAustin 11:cada08fc8a70 216
mbedAustin 11:cada08fc8a70 217 #if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64)
mbedAustin 11:cada08fc8a70 218 if( mbedtls_aesni_has_support( MBEDTLS_AESNI_CLMUL ) ) {
mbedAustin 11:cada08fc8a70 219 unsigned char h[16];
mbedAustin 11:cada08fc8a70 220
mbedAustin 11:cada08fc8a70 221 PUT_UINT32_BE( ctx->HH[8] >> 32, h, 0 );
mbedAustin 11:cada08fc8a70 222 PUT_UINT32_BE( ctx->HH[8], h, 4 );
mbedAustin 11:cada08fc8a70 223 PUT_UINT32_BE( ctx->HL[8] >> 32, h, 8 );
mbedAustin 11:cada08fc8a70 224 PUT_UINT32_BE( ctx->HL[8], h, 12 );
mbedAustin 11:cada08fc8a70 225
mbedAustin 11:cada08fc8a70 226 mbedtls_aesni_gcm_mult( output, x, h );
mbedAustin 11:cada08fc8a70 227 return;
mbedAustin 11:cada08fc8a70 228 }
mbedAustin 11:cada08fc8a70 229 #endif /* MBEDTLS_AESNI_C && MBEDTLS_HAVE_X86_64 */
mbedAustin 11:cada08fc8a70 230
mbedAustin 11:cada08fc8a70 231 lo = x[15] & 0xf;
mbedAustin 11:cada08fc8a70 232
mbedAustin 11:cada08fc8a70 233 zh = ctx->HH[lo];
mbedAustin 11:cada08fc8a70 234 zl = ctx->HL[lo];
mbedAustin 11:cada08fc8a70 235
mbedAustin 11:cada08fc8a70 236 for( i = 15; i >= 0; i-- )
mbedAustin 11:cada08fc8a70 237 {
mbedAustin 11:cada08fc8a70 238 lo = x[i] & 0xf;
mbedAustin 11:cada08fc8a70 239 hi = x[i] >> 4;
mbedAustin 11:cada08fc8a70 240
mbedAustin 11:cada08fc8a70 241 if( i != 15 )
mbedAustin 11:cada08fc8a70 242 {
mbedAustin 11:cada08fc8a70 243 rem = (unsigned char) zl & 0xf;
mbedAustin 11:cada08fc8a70 244 zl = ( zh << 60 ) | ( zl >> 4 );
mbedAustin 11:cada08fc8a70 245 zh = ( zh >> 4 );
mbedAustin 11:cada08fc8a70 246 zh ^= (uint64_t) last4[rem] << 48;
mbedAustin 11:cada08fc8a70 247 zh ^= ctx->HH[lo];
mbedAustin 11:cada08fc8a70 248 zl ^= ctx->HL[lo];
mbedAustin 11:cada08fc8a70 249
mbedAustin 11:cada08fc8a70 250 }
mbedAustin 11:cada08fc8a70 251
mbedAustin 11:cada08fc8a70 252 rem = (unsigned char) zl & 0xf;
mbedAustin 11:cada08fc8a70 253 zl = ( zh << 60 ) | ( zl >> 4 );
mbedAustin 11:cada08fc8a70 254 zh = ( zh >> 4 );
mbedAustin 11:cada08fc8a70 255 zh ^= (uint64_t) last4[rem] << 48;
mbedAustin 11:cada08fc8a70 256 zh ^= ctx->HH[hi];
mbedAustin 11:cada08fc8a70 257 zl ^= ctx->HL[hi];
mbedAustin 11:cada08fc8a70 258 }
mbedAustin 11:cada08fc8a70 259
mbedAustin 11:cada08fc8a70 260 PUT_UINT32_BE( zh >> 32, output, 0 );
mbedAustin 11:cada08fc8a70 261 PUT_UINT32_BE( zh, output, 4 );
mbedAustin 11:cada08fc8a70 262 PUT_UINT32_BE( zl >> 32, output, 8 );
mbedAustin 11:cada08fc8a70 263 PUT_UINT32_BE( zl, output, 12 );
mbedAustin 11:cada08fc8a70 264 }
mbedAustin 11:cada08fc8a70 265
mbedAustin 11:cada08fc8a70 266 int mbedtls_gcm_starts( mbedtls_gcm_context *ctx,
mbedAustin 11:cada08fc8a70 267 int mode,
mbedAustin 11:cada08fc8a70 268 const unsigned char *iv,
mbedAustin 11:cada08fc8a70 269 size_t iv_len,
mbedAustin 11:cada08fc8a70 270 const unsigned char *add,
mbedAustin 11:cada08fc8a70 271 size_t add_len )
mbedAustin 11:cada08fc8a70 272 {
mbedAustin 11:cada08fc8a70 273 int ret;
mbedAustin 11:cada08fc8a70 274 unsigned char work_buf[16];
mbedAustin 11:cada08fc8a70 275 size_t i;
mbedAustin 11:cada08fc8a70 276 const unsigned char *p;
mbedAustin 11:cada08fc8a70 277 size_t use_len, olen = 0;
mbedAustin 11:cada08fc8a70 278
mbedAustin 11:cada08fc8a70 279 /* IV and AD are limited to 2^64 bits, so 2^61 bytes */
mbedAustin 11:cada08fc8a70 280 if( ( (uint64_t) iv_len ) >> 61 != 0 ||
mbedAustin 11:cada08fc8a70 281 ( (uint64_t) add_len ) >> 61 != 0 )
mbedAustin 11:cada08fc8a70 282 {
mbedAustin 11:cada08fc8a70 283 return( MBEDTLS_ERR_GCM_BAD_INPUT );
mbedAustin 11:cada08fc8a70 284 }
mbedAustin 11:cada08fc8a70 285
mbedAustin 11:cada08fc8a70 286 memset( ctx->y, 0x00, sizeof(ctx->y) );
mbedAustin 11:cada08fc8a70 287 memset( ctx->buf, 0x00, sizeof(ctx->buf) );
mbedAustin 11:cada08fc8a70 288
mbedAustin 11:cada08fc8a70 289 ctx->mode = mode;
mbedAustin 11:cada08fc8a70 290 ctx->len = 0;
mbedAustin 11:cada08fc8a70 291 ctx->add_len = 0;
mbedAustin 11:cada08fc8a70 292
mbedAustin 11:cada08fc8a70 293 if( iv_len == 12 )
mbedAustin 11:cada08fc8a70 294 {
mbedAustin 11:cada08fc8a70 295 memcpy( ctx->y, iv, iv_len );
mbedAustin 11:cada08fc8a70 296 ctx->y[15] = 1;
mbedAustin 11:cada08fc8a70 297 }
mbedAustin 11:cada08fc8a70 298 else
mbedAustin 11:cada08fc8a70 299 {
mbedAustin 11:cada08fc8a70 300 memset( work_buf, 0x00, 16 );
mbedAustin 11:cada08fc8a70 301 PUT_UINT32_BE( iv_len * 8, work_buf, 12 );
mbedAustin 11:cada08fc8a70 302
mbedAustin 11:cada08fc8a70 303 p = iv;
mbedAustin 11:cada08fc8a70 304 while( iv_len > 0 )
mbedAustin 11:cada08fc8a70 305 {
mbedAustin 11:cada08fc8a70 306 use_len = ( iv_len < 16 ) ? iv_len : 16;
mbedAustin 11:cada08fc8a70 307
mbedAustin 11:cada08fc8a70 308 for( i = 0; i < use_len; i++ )
mbedAustin 11:cada08fc8a70 309 ctx->y[i] ^= p[i];
mbedAustin 11:cada08fc8a70 310
mbedAustin 11:cada08fc8a70 311 gcm_mult( ctx, ctx->y, ctx->y );
mbedAustin 11:cada08fc8a70 312
mbedAustin 11:cada08fc8a70 313 iv_len -= use_len;
mbedAustin 11:cada08fc8a70 314 p += use_len;
mbedAustin 11:cada08fc8a70 315 }
mbedAustin 11:cada08fc8a70 316
mbedAustin 11:cada08fc8a70 317 for( i = 0; i < 16; i++ )
mbedAustin 11:cada08fc8a70 318 ctx->y[i] ^= work_buf[i];
mbedAustin 11:cada08fc8a70 319
mbedAustin 11:cada08fc8a70 320 gcm_mult( ctx, ctx->y, ctx->y );
mbedAustin 11:cada08fc8a70 321 }
mbedAustin 11:cada08fc8a70 322
mbedAustin 11:cada08fc8a70 323 if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, ctx->y, 16, ctx->base_ectr,
mbedAustin 11:cada08fc8a70 324 &olen ) ) != 0 )
mbedAustin 11:cada08fc8a70 325 {
mbedAustin 11:cada08fc8a70 326 return( ret );
mbedAustin 11:cada08fc8a70 327 }
mbedAustin 11:cada08fc8a70 328
mbedAustin 11:cada08fc8a70 329 ctx->add_len = add_len;
mbedAustin 11:cada08fc8a70 330 p = add;
mbedAustin 11:cada08fc8a70 331 while( add_len > 0 )
mbedAustin 11:cada08fc8a70 332 {
mbedAustin 11:cada08fc8a70 333 use_len = ( add_len < 16 ) ? add_len : 16;
mbedAustin 11:cada08fc8a70 334
mbedAustin 11:cada08fc8a70 335 for( i = 0; i < use_len; i++ )
mbedAustin 11:cada08fc8a70 336 ctx->buf[i] ^= p[i];
mbedAustin 11:cada08fc8a70 337
mbedAustin 11:cada08fc8a70 338 gcm_mult( ctx, ctx->buf, ctx->buf );
mbedAustin 11:cada08fc8a70 339
mbedAustin 11:cada08fc8a70 340 add_len -= use_len;
mbedAustin 11:cada08fc8a70 341 p += use_len;
mbedAustin 11:cada08fc8a70 342 }
mbedAustin 11:cada08fc8a70 343
mbedAustin 11:cada08fc8a70 344 return( 0 );
mbedAustin 11:cada08fc8a70 345 }
mbedAustin 11:cada08fc8a70 346
mbedAustin 11:cada08fc8a70 347 int mbedtls_gcm_update( mbedtls_gcm_context *ctx,
mbedAustin 11:cada08fc8a70 348 size_t length,
mbedAustin 11:cada08fc8a70 349 const unsigned char *input,
mbedAustin 11:cada08fc8a70 350 unsigned char *output )
mbedAustin 11:cada08fc8a70 351 {
mbedAustin 11:cada08fc8a70 352 int ret;
mbedAustin 11:cada08fc8a70 353 unsigned char ectr[16];
mbedAustin 11:cada08fc8a70 354 size_t i;
mbedAustin 11:cada08fc8a70 355 const unsigned char *p;
mbedAustin 11:cada08fc8a70 356 unsigned char *out_p = output;
mbedAustin 11:cada08fc8a70 357 size_t use_len, olen = 0;
mbedAustin 11:cada08fc8a70 358
mbedAustin 11:cada08fc8a70 359 if( output > input && (size_t) ( output - input ) < length )
mbedAustin 11:cada08fc8a70 360 return( MBEDTLS_ERR_GCM_BAD_INPUT );
mbedAustin 11:cada08fc8a70 361
mbedAustin 11:cada08fc8a70 362 /* Total length is restricted to 2^39 - 256 bits, ie 2^36 - 2^5 bytes
mbedAustin 11:cada08fc8a70 363 * Also check for possible overflow */
mbedAustin 11:cada08fc8a70 364 if( ctx->len + length < ctx->len ||
mbedAustin 11:cada08fc8a70 365 (uint64_t) ctx->len + length > 0x03FFFFE0ull )
mbedAustin 11:cada08fc8a70 366 {
mbedAustin 11:cada08fc8a70 367 return( MBEDTLS_ERR_GCM_BAD_INPUT );
mbedAustin 11:cada08fc8a70 368 }
mbedAustin 11:cada08fc8a70 369
mbedAustin 11:cada08fc8a70 370 ctx->len += length;
mbedAustin 11:cada08fc8a70 371
mbedAustin 11:cada08fc8a70 372 p = input;
mbedAustin 11:cada08fc8a70 373 while( length > 0 )
mbedAustin 11:cada08fc8a70 374 {
mbedAustin 11:cada08fc8a70 375 use_len = ( length < 16 ) ? length : 16;
mbedAustin 11:cada08fc8a70 376
mbedAustin 11:cada08fc8a70 377 for( i = 16; i > 12; i-- )
mbedAustin 11:cada08fc8a70 378 if( ++ctx->y[i - 1] != 0 )
mbedAustin 11:cada08fc8a70 379 break;
mbedAustin 11:cada08fc8a70 380
mbedAustin 11:cada08fc8a70 381 if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, ctx->y, 16, ectr,
mbedAustin 11:cada08fc8a70 382 &olen ) ) != 0 )
mbedAustin 11:cada08fc8a70 383 {
mbedAustin 11:cada08fc8a70 384 return( ret );
mbedAustin 11:cada08fc8a70 385 }
mbedAustin 11:cada08fc8a70 386
mbedAustin 11:cada08fc8a70 387 for( i = 0; i < use_len; i++ )
mbedAustin 11:cada08fc8a70 388 {
mbedAustin 11:cada08fc8a70 389 if( ctx->mode == MBEDTLS_GCM_DECRYPT )
mbedAustin 11:cada08fc8a70 390 ctx->buf[i] ^= p[i];
mbedAustin 11:cada08fc8a70 391 out_p[i] = ectr[i] ^ p[i];
mbedAustin 11:cada08fc8a70 392 if( ctx->mode == MBEDTLS_GCM_ENCRYPT )
mbedAustin 11:cada08fc8a70 393 ctx->buf[i] ^= out_p[i];
mbedAustin 11:cada08fc8a70 394 }
mbedAustin 11:cada08fc8a70 395
mbedAustin 11:cada08fc8a70 396 gcm_mult( ctx, ctx->buf, ctx->buf );
mbedAustin 11:cada08fc8a70 397
mbedAustin 11:cada08fc8a70 398 length -= use_len;
mbedAustin 11:cada08fc8a70 399 p += use_len;
mbedAustin 11:cada08fc8a70 400 out_p += use_len;
mbedAustin 11:cada08fc8a70 401 }
mbedAustin 11:cada08fc8a70 402
mbedAustin 11:cada08fc8a70 403 return( 0 );
mbedAustin 11:cada08fc8a70 404 }
mbedAustin 11:cada08fc8a70 405
mbedAustin 11:cada08fc8a70 406 int mbedtls_gcm_finish( mbedtls_gcm_context *ctx,
mbedAustin 11:cada08fc8a70 407 unsigned char *tag,
mbedAustin 11:cada08fc8a70 408 size_t tag_len )
mbedAustin 11:cada08fc8a70 409 {
mbedAustin 11:cada08fc8a70 410 unsigned char work_buf[16];
mbedAustin 11:cada08fc8a70 411 size_t i;
mbedAustin 11:cada08fc8a70 412 uint64_t orig_len = ctx->len * 8;
mbedAustin 11:cada08fc8a70 413 uint64_t orig_add_len = ctx->add_len * 8;
mbedAustin 11:cada08fc8a70 414
mbedAustin 11:cada08fc8a70 415 if( tag_len > 16 || tag_len < 4 )
mbedAustin 11:cada08fc8a70 416 return( MBEDTLS_ERR_GCM_BAD_INPUT );
mbedAustin 11:cada08fc8a70 417
mbedAustin 11:cada08fc8a70 418 if( tag_len != 0 )
mbedAustin 11:cada08fc8a70 419 memcpy( tag, ctx->base_ectr, tag_len );
mbedAustin 11:cada08fc8a70 420
mbedAustin 11:cada08fc8a70 421 if( orig_len || orig_add_len )
mbedAustin 11:cada08fc8a70 422 {
mbedAustin 11:cada08fc8a70 423 memset( work_buf, 0x00, 16 );
mbedAustin 11:cada08fc8a70 424
mbedAustin 11:cada08fc8a70 425 PUT_UINT32_BE( ( orig_add_len >> 32 ), work_buf, 0 );
mbedAustin 11:cada08fc8a70 426 PUT_UINT32_BE( ( orig_add_len ), work_buf, 4 );
mbedAustin 11:cada08fc8a70 427 PUT_UINT32_BE( ( orig_len >> 32 ), work_buf, 8 );
mbedAustin 11:cada08fc8a70 428 PUT_UINT32_BE( ( orig_len ), work_buf, 12 );
mbedAustin 11:cada08fc8a70 429
mbedAustin 11:cada08fc8a70 430 for( i = 0; i < 16; i++ )
mbedAustin 11:cada08fc8a70 431 ctx->buf[i] ^= work_buf[i];
mbedAustin 11:cada08fc8a70 432
mbedAustin 11:cada08fc8a70 433 gcm_mult( ctx, ctx->buf, ctx->buf );
mbedAustin 11:cada08fc8a70 434
mbedAustin 11:cada08fc8a70 435 for( i = 0; i < tag_len; i++ )
mbedAustin 11:cada08fc8a70 436 tag[i] ^= ctx->buf[i];
mbedAustin 11:cada08fc8a70 437 }
mbedAustin 11:cada08fc8a70 438
mbedAustin 11:cada08fc8a70 439 return( 0 );
mbedAustin 11:cada08fc8a70 440 }
mbedAustin 11:cada08fc8a70 441
mbedAustin 11:cada08fc8a70 442 int mbedtls_gcm_crypt_and_tag( mbedtls_gcm_context *ctx,
mbedAustin 11:cada08fc8a70 443 int mode,
mbedAustin 11:cada08fc8a70 444 size_t length,
mbedAustin 11:cada08fc8a70 445 const unsigned char *iv,
mbedAustin 11:cada08fc8a70 446 size_t iv_len,
mbedAustin 11:cada08fc8a70 447 const unsigned char *add,
mbedAustin 11:cada08fc8a70 448 size_t add_len,
mbedAustin 11:cada08fc8a70 449 const unsigned char *input,
mbedAustin 11:cada08fc8a70 450 unsigned char *output,
mbedAustin 11:cada08fc8a70 451 size_t tag_len,
mbedAustin 11:cada08fc8a70 452 unsigned char *tag )
mbedAustin 11:cada08fc8a70 453 {
mbedAustin 11:cada08fc8a70 454 int ret;
mbedAustin 11:cada08fc8a70 455
mbedAustin 11:cada08fc8a70 456 if( ( ret = mbedtls_gcm_starts( ctx, mode, iv, iv_len, add, add_len ) ) != 0 )
mbedAustin 11:cada08fc8a70 457 return( ret );
mbedAustin 11:cada08fc8a70 458
mbedAustin 11:cada08fc8a70 459 if( ( ret = mbedtls_gcm_update( ctx, length, input, output ) ) != 0 )
mbedAustin 11:cada08fc8a70 460 return( ret );
mbedAustin 11:cada08fc8a70 461
mbedAustin 11:cada08fc8a70 462 if( ( ret = mbedtls_gcm_finish( ctx, tag, tag_len ) ) != 0 )
mbedAustin 11:cada08fc8a70 463 return( ret );
mbedAustin 11:cada08fc8a70 464
mbedAustin 11:cada08fc8a70 465 return( 0 );
mbedAustin 11:cada08fc8a70 466 }
mbedAustin 11:cada08fc8a70 467
mbedAustin 11:cada08fc8a70 468 int mbedtls_gcm_auth_decrypt( mbedtls_gcm_context *ctx,
mbedAustin 11:cada08fc8a70 469 size_t length,
mbedAustin 11:cada08fc8a70 470 const unsigned char *iv,
mbedAustin 11:cada08fc8a70 471 size_t iv_len,
mbedAustin 11:cada08fc8a70 472 const unsigned char *add,
mbedAustin 11:cada08fc8a70 473 size_t add_len,
mbedAustin 11:cada08fc8a70 474 const unsigned char *tag,
mbedAustin 11:cada08fc8a70 475 size_t tag_len,
mbedAustin 11:cada08fc8a70 476 const unsigned char *input,
mbedAustin 11:cada08fc8a70 477 unsigned char *output )
mbedAustin 11:cada08fc8a70 478 {
mbedAustin 11:cada08fc8a70 479 int ret;
mbedAustin 11:cada08fc8a70 480 unsigned char check_tag[16];
mbedAustin 11:cada08fc8a70 481 size_t i;
mbedAustin 11:cada08fc8a70 482 int diff;
mbedAustin 11:cada08fc8a70 483
mbedAustin 11:cada08fc8a70 484 if( ( ret = mbedtls_gcm_crypt_and_tag( ctx, MBEDTLS_GCM_DECRYPT, length,
mbedAustin 11:cada08fc8a70 485 iv, iv_len, add, add_len,
mbedAustin 11:cada08fc8a70 486 input, output, tag_len, check_tag ) ) != 0 )
mbedAustin 11:cada08fc8a70 487 {
mbedAustin 11:cada08fc8a70 488 return( ret );
mbedAustin 11:cada08fc8a70 489 }
mbedAustin 11:cada08fc8a70 490
mbedAustin 11:cada08fc8a70 491 /* Check tag in "constant-time" */
mbedAustin 11:cada08fc8a70 492 for( diff = 0, i = 0; i < tag_len; i++ )
mbedAustin 11:cada08fc8a70 493 diff |= tag[i] ^ check_tag[i];
mbedAustin 11:cada08fc8a70 494
mbedAustin 11:cada08fc8a70 495 if( diff != 0 )
mbedAustin 11:cada08fc8a70 496 {
mbedAustin 11:cada08fc8a70 497 mbedtls_zeroize( output, length );
mbedAustin 11:cada08fc8a70 498 return( MBEDTLS_ERR_GCM_AUTH_FAILED );
mbedAustin 11:cada08fc8a70 499 }
mbedAustin 11:cada08fc8a70 500
mbedAustin 11:cada08fc8a70 501 return( 0 );
mbedAustin 11:cada08fc8a70 502 }
mbedAustin 11:cada08fc8a70 503
mbedAustin 11:cada08fc8a70 504 void mbedtls_gcm_free( mbedtls_gcm_context *ctx )
mbedAustin 11:cada08fc8a70 505 {
mbedAustin 11:cada08fc8a70 506 mbedtls_cipher_free( &ctx->cipher_ctx );
mbedAustin 11:cada08fc8a70 507 mbedtls_zeroize( ctx, sizeof( mbedtls_gcm_context ) );
mbedAustin 11:cada08fc8a70 508 }
mbedAustin 11:cada08fc8a70 509
mbedAustin 11:cada08fc8a70 510 #if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
mbedAustin 11:cada08fc8a70 511 /*
mbedAustin 11:cada08fc8a70 512 * AES-GCM test vectors from:
mbedAustin 11:cada08fc8a70 513 *
mbedAustin 11:cada08fc8a70 514 * http://csrc.nist.gov/groups/STM/cavp/documents/mac/gcmtestvectors.zip
mbedAustin 11:cada08fc8a70 515 */
mbedAustin 11:cada08fc8a70 516 #define MAX_TESTS 6
mbedAustin 11:cada08fc8a70 517
mbedAustin 11:cada08fc8a70 518 static const int key_index[MAX_TESTS] =
mbedAustin 11:cada08fc8a70 519 { 0, 0, 1, 1, 1, 1 };
mbedAustin 11:cada08fc8a70 520
mbedAustin 11:cada08fc8a70 521 static const unsigned char key[MAX_TESTS][32] =
mbedAustin 11:cada08fc8a70 522 {
mbedAustin 11:cada08fc8a70 523 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
mbedAustin 11:cada08fc8a70 524 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
mbedAustin 11:cada08fc8a70 525 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
mbedAustin 11:cada08fc8a70 526 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
mbedAustin 11:cada08fc8a70 527 { 0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,
mbedAustin 11:cada08fc8a70 528 0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08,
mbedAustin 11:cada08fc8a70 529 0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,
mbedAustin 11:cada08fc8a70 530 0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08 },
mbedAustin 11:cada08fc8a70 531 };
mbedAustin 11:cada08fc8a70 532
mbedAustin 11:cada08fc8a70 533 static const size_t iv_len[MAX_TESTS] =
mbedAustin 11:cada08fc8a70 534 { 12, 12, 12, 12, 8, 60 };
mbedAustin 11:cada08fc8a70 535
mbedAustin 11:cada08fc8a70 536 static const int iv_index[MAX_TESTS] =
mbedAustin 11:cada08fc8a70 537 { 0, 0, 1, 1, 1, 2 };
mbedAustin 11:cada08fc8a70 538
mbedAustin 11:cada08fc8a70 539 static const unsigned char iv[MAX_TESTS][64] =
mbedAustin 11:cada08fc8a70 540 {
mbedAustin 11:cada08fc8a70 541 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
mbedAustin 11:cada08fc8a70 542 0x00, 0x00, 0x00, 0x00 },
mbedAustin 11:cada08fc8a70 543 { 0xca, 0xfe, 0xba, 0xbe, 0xfa, 0xce, 0xdb, 0xad,
mbedAustin 11:cada08fc8a70 544 0xde, 0xca, 0xf8, 0x88 },
mbedAustin 11:cada08fc8a70 545 { 0x93, 0x13, 0x22, 0x5d, 0xf8, 0x84, 0x06, 0xe5,
mbedAustin 11:cada08fc8a70 546 0x55, 0x90, 0x9c, 0x5a, 0xff, 0x52, 0x69, 0xaa,
mbedAustin 11:cada08fc8a70 547 0x6a, 0x7a, 0x95, 0x38, 0x53, 0x4f, 0x7d, 0xa1,
mbedAustin 11:cada08fc8a70 548 0xe4, 0xc3, 0x03, 0xd2, 0xa3, 0x18, 0xa7, 0x28,
mbedAustin 11:cada08fc8a70 549 0xc3, 0xc0, 0xc9, 0x51, 0x56, 0x80, 0x95, 0x39,
mbedAustin 11:cada08fc8a70 550 0xfc, 0xf0, 0xe2, 0x42, 0x9a, 0x6b, 0x52, 0x54,
mbedAustin 11:cada08fc8a70 551 0x16, 0xae, 0xdb, 0xf5, 0xa0, 0xde, 0x6a, 0x57,
mbedAustin 11:cada08fc8a70 552 0xa6, 0x37, 0xb3, 0x9b },
mbedAustin 11:cada08fc8a70 553 };
mbedAustin 11:cada08fc8a70 554
mbedAustin 11:cada08fc8a70 555 static const size_t add_len[MAX_TESTS] =
mbedAustin 11:cada08fc8a70 556 { 0, 0, 0, 20, 20, 20 };
mbedAustin 11:cada08fc8a70 557
mbedAustin 11:cada08fc8a70 558 static const int add_index[MAX_TESTS] =
mbedAustin 11:cada08fc8a70 559 { 0, 0, 0, 1, 1, 1 };
mbedAustin 11:cada08fc8a70 560
mbedAustin 11:cada08fc8a70 561 static const unsigned char additional[MAX_TESTS][64] =
mbedAustin 11:cada08fc8a70 562 {
mbedAustin 11:cada08fc8a70 563 { 0x00 },
mbedAustin 11:cada08fc8a70 564 { 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,
mbedAustin 11:cada08fc8a70 565 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,
mbedAustin 11:cada08fc8a70 566 0xab, 0xad, 0xda, 0xd2 },
mbedAustin 11:cada08fc8a70 567 };
mbedAustin 11:cada08fc8a70 568
mbedAustin 11:cada08fc8a70 569 static const size_t pt_len[MAX_TESTS] =
mbedAustin 11:cada08fc8a70 570 { 0, 16, 64, 60, 60, 60 };
mbedAustin 11:cada08fc8a70 571
mbedAustin 11:cada08fc8a70 572 static const int pt_index[MAX_TESTS] =
mbedAustin 11:cada08fc8a70 573 { 0, 0, 1, 1, 1, 1 };
mbedAustin 11:cada08fc8a70 574
mbedAustin 11:cada08fc8a70 575 static const unsigned char pt[MAX_TESTS][64] =
mbedAustin 11:cada08fc8a70 576 {
mbedAustin 11:cada08fc8a70 577 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
mbedAustin 11:cada08fc8a70 578 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
mbedAustin 11:cada08fc8a70 579 { 0xd9, 0x31, 0x32, 0x25, 0xf8, 0x84, 0x06, 0xe5,
mbedAustin 11:cada08fc8a70 580 0xa5, 0x59, 0x09, 0xc5, 0xaf, 0xf5, 0x26, 0x9a,
mbedAustin 11:cada08fc8a70 581 0x86, 0xa7, 0xa9, 0x53, 0x15, 0x34, 0xf7, 0xda,
mbedAustin 11:cada08fc8a70 582 0x2e, 0x4c, 0x30, 0x3d, 0x8a, 0x31, 0x8a, 0x72,
mbedAustin 11:cada08fc8a70 583 0x1c, 0x3c, 0x0c, 0x95, 0x95, 0x68, 0x09, 0x53,
mbedAustin 11:cada08fc8a70 584 0x2f, 0xcf, 0x0e, 0x24, 0x49, 0xa6, 0xb5, 0x25,
mbedAustin 11:cada08fc8a70 585 0xb1, 0x6a, 0xed, 0xf5, 0xaa, 0x0d, 0xe6, 0x57,
mbedAustin 11:cada08fc8a70 586 0xba, 0x63, 0x7b, 0x39, 0x1a, 0xaf, 0xd2, 0x55 },
mbedAustin 11:cada08fc8a70 587 };
mbedAustin 11:cada08fc8a70 588
mbedAustin 11:cada08fc8a70 589 static const unsigned char ct[MAX_TESTS * 3][64] =
mbedAustin 11:cada08fc8a70 590 {
mbedAustin 11:cada08fc8a70 591 { 0x00 },
mbedAustin 11:cada08fc8a70 592 { 0x03, 0x88, 0xda, 0xce, 0x60, 0xb6, 0xa3, 0x92,
mbedAustin 11:cada08fc8a70 593 0xf3, 0x28, 0xc2, 0xb9, 0x71, 0xb2, 0xfe, 0x78 },
mbedAustin 11:cada08fc8a70 594 { 0x42, 0x83, 0x1e, 0xc2, 0x21, 0x77, 0x74, 0x24,
mbedAustin 11:cada08fc8a70 595 0x4b, 0x72, 0x21, 0xb7, 0x84, 0xd0, 0xd4, 0x9c,
mbedAustin 11:cada08fc8a70 596 0xe3, 0xaa, 0x21, 0x2f, 0x2c, 0x02, 0xa4, 0xe0,
mbedAustin 11:cada08fc8a70 597 0x35, 0xc1, 0x7e, 0x23, 0x29, 0xac, 0xa1, 0x2e,
mbedAustin 11:cada08fc8a70 598 0x21, 0xd5, 0x14, 0xb2, 0x54, 0x66, 0x93, 0x1c,
mbedAustin 11:cada08fc8a70 599 0x7d, 0x8f, 0x6a, 0x5a, 0xac, 0x84, 0xaa, 0x05,
mbedAustin 11:cada08fc8a70 600 0x1b, 0xa3, 0x0b, 0x39, 0x6a, 0x0a, 0xac, 0x97,
mbedAustin 11:cada08fc8a70 601 0x3d, 0x58, 0xe0, 0x91, 0x47, 0x3f, 0x59, 0x85 },
mbedAustin 11:cada08fc8a70 602 { 0x42, 0x83, 0x1e, 0xc2, 0x21, 0x77, 0x74, 0x24,
mbedAustin 11:cada08fc8a70 603 0x4b, 0x72, 0x21, 0xb7, 0x84, 0xd0, 0xd4, 0x9c,
mbedAustin 11:cada08fc8a70 604 0xe3, 0xaa, 0x21, 0x2f, 0x2c, 0x02, 0xa4, 0xe0,
mbedAustin 11:cada08fc8a70 605 0x35, 0xc1, 0x7e, 0x23, 0x29, 0xac, 0xa1, 0x2e,
mbedAustin 11:cada08fc8a70 606 0x21, 0xd5, 0x14, 0xb2, 0x54, 0x66, 0x93, 0x1c,
mbedAustin 11:cada08fc8a70 607 0x7d, 0x8f, 0x6a, 0x5a, 0xac, 0x84, 0xaa, 0x05,
mbedAustin 11:cada08fc8a70 608 0x1b, 0xa3, 0x0b, 0x39, 0x6a, 0x0a, 0xac, 0x97,
mbedAustin 11:cada08fc8a70 609 0x3d, 0x58, 0xe0, 0x91 },
mbedAustin 11:cada08fc8a70 610 { 0x61, 0x35, 0x3b, 0x4c, 0x28, 0x06, 0x93, 0x4a,
mbedAustin 11:cada08fc8a70 611 0x77, 0x7f, 0xf5, 0x1f, 0xa2, 0x2a, 0x47, 0x55,
mbedAustin 11:cada08fc8a70 612 0x69, 0x9b, 0x2a, 0x71, 0x4f, 0xcd, 0xc6, 0xf8,
mbedAustin 11:cada08fc8a70 613 0x37, 0x66, 0xe5, 0xf9, 0x7b, 0x6c, 0x74, 0x23,
mbedAustin 11:cada08fc8a70 614 0x73, 0x80, 0x69, 0x00, 0xe4, 0x9f, 0x24, 0xb2,
mbedAustin 11:cada08fc8a70 615 0x2b, 0x09, 0x75, 0x44, 0xd4, 0x89, 0x6b, 0x42,
mbedAustin 11:cada08fc8a70 616 0x49, 0x89, 0xb5, 0xe1, 0xeb, 0xac, 0x0f, 0x07,
mbedAustin 11:cada08fc8a70 617 0xc2, 0x3f, 0x45, 0x98 },
mbedAustin 11:cada08fc8a70 618 { 0x8c, 0xe2, 0x49, 0x98, 0x62, 0x56, 0x15, 0xb6,
mbedAustin 11:cada08fc8a70 619 0x03, 0xa0, 0x33, 0xac, 0xa1, 0x3f, 0xb8, 0x94,
mbedAustin 11:cada08fc8a70 620 0xbe, 0x91, 0x12, 0xa5, 0xc3, 0xa2, 0x11, 0xa8,
mbedAustin 11:cada08fc8a70 621 0xba, 0x26, 0x2a, 0x3c, 0xca, 0x7e, 0x2c, 0xa7,
mbedAustin 11:cada08fc8a70 622 0x01, 0xe4, 0xa9, 0xa4, 0xfb, 0xa4, 0x3c, 0x90,
mbedAustin 11:cada08fc8a70 623 0xcc, 0xdc, 0xb2, 0x81, 0xd4, 0x8c, 0x7c, 0x6f,
mbedAustin 11:cada08fc8a70 624 0xd6, 0x28, 0x75, 0xd2, 0xac, 0xa4, 0x17, 0x03,
mbedAustin 11:cada08fc8a70 625 0x4c, 0x34, 0xae, 0xe5 },
mbedAustin 11:cada08fc8a70 626 { 0x00 },
mbedAustin 11:cada08fc8a70 627 { 0x98, 0xe7, 0x24, 0x7c, 0x07, 0xf0, 0xfe, 0x41,
mbedAustin 11:cada08fc8a70 628 0x1c, 0x26, 0x7e, 0x43, 0x84, 0xb0, 0xf6, 0x00 },
mbedAustin 11:cada08fc8a70 629 { 0x39, 0x80, 0xca, 0x0b, 0x3c, 0x00, 0xe8, 0x41,
mbedAustin 11:cada08fc8a70 630 0xeb, 0x06, 0xfa, 0xc4, 0x87, 0x2a, 0x27, 0x57,
mbedAustin 11:cada08fc8a70 631 0x85, 0x9e, 0x1c, 0xea, 0xa6, 0xef, 0xd9, 0x84,
mbedAustin 11:cada08fc8a70 632 0x62, 0x85, 0x93, 0xb4, 0x0c, 0xa1, 0xe1, 0x9c,
mbedAustin 11:cada08fc8a70 633 0x7d, 0x77, 0x3d, 0x00, 0xc1, 0x44, 0xc5, 0x25,
mbedAustin 11:cada08fc8a70 634 0xac, 0x61, 0x9d, 0x18, 0xc8, 0x4a, 0x3f, 0x47,
mbedAustin 11:cada08fc8a70 635 0x18, 0xe2, 0x44, 0x8b, 0x2f, 0xe3, 0x24, 0xd9,
mbedAustin 11:cada08fc8a70 636 0xcc, 0xda, 0x27, 0x10, 0xac, 0xad, 0xe2, 0x56 },
mbedAustin 11:cada08fc8a70 637 { 0x39, 0x80, 0xca, 0x0b, 0x3c, 0x00, 0xe8, 0x41,
mbedAustin 11:cada08fc8a70 638 0xeb, 0x06, 0xfa, 0xc4, 0x87, 0x2a, 0x27, 0x57,
mbedAustin 11:cada08fc8a70 639 0x85, 0x9e, 0x1c, 0xea, 0xa6, 0xef, 0xd9, 0x84,
mbedAustin 11:cada08fc8a70 640 0x62, 0x85, 0x93, 0xb4, 0x0c, 0xa1, 0xe1, 0x9c,
mbedAustin 11:cada08fc8a70 641 0x7d, 0x77, 0x3d, 0x00, 0xc1, 0x44, 0xc5, 0x25,
mbedAustin 11:cada08fc8a70 642 0xac, 0x61, 0x9d, 0x18, 0xc8, 0x4a, 0x3f, 0x47,
mbedAustin 11:cada08fc8a70 643 0x18, 0xe2, 0x44, 0x8b, 0x2f, 0xe3, 0x24, 0xd9,
mbedAustin 11:cada08fc8a70 644 0xcc, 0xda, 0x27, 0x10 },
mbedAustin 11:cada08fc8a70 645 { 0x0f, 0x10, 0xf5, 0x99, 0xae, 0x14, 0xa1, 0x54,
mbedAustin 11:cada08fc8a70 646 0xed, 0x24, 0xb3, 0x6e, 0x25, 0x32, 0x4d, 0xb8,
mbedAustin 11:cada08fc8a70 647 0xc5, 0x66, 0x63, 0x2e, 0xf2, 0xbb, 0xb3, 0x4f,
mbedAustin 11:cada08fc8a70 648 0x83, 0x47, 0x28, 0x0f, 0xc4, 0x50, 0x70, 0x57,
mbedAustin 11:cada08fc8a70 649 0xfd, 0xdc, 0x29, 0xdf, 0x9a, 0x47, 0x1f, 0x75,
mbedAustin 11:cada08fc8a70 650 0xc6, 0x65, 0x41, 0xd4, 0xd4, 0xda, 0xd1, 0xc9,
mbedAustin 11:cada08fc8a70 651 0xe9, 0x3a, 0x19, 0xa5, 0x8e, 0x8b, 0x47, 0x3f,
mbedAustin 11:cada08fc8a70 652 0xa0, 0xf0, 0x62, 0xf7 },
mbedAustin 11:cada08fc8a70 653 { 0xd2, 0x7e, 0x88, 0x68, 0x1c, 0xe3, 0x24, 0x3c,
mbedAustin 11:cada08fc8a70 654 0x48, 0x30, 0x16, 0x5a, 0x8f, 0xdc, 0xf9, 0xff,
mbedAustin 11:cada08fc8a70 655 0x1d, 0xe9, 0xa1, 0xd8, 0xe6, 0xb4, 0x47, 0xef,
mbedAustin 11:cada08fc8a70 656 0x6e, 0xf7, 0xb7, 0x98, 0x28, 0x66, 0x6e, 0x45,
mbedAustin 11:cada08fc8a70 657 0x81, 0xe7, 0x90, 0x12, 0xaf, 0x34, 0xdd, 0xd9,
mbedAustin 11:cada08fc8a70 658 0xe2, 0xf0, 0x37, 0x58, 0x9b, 0x29, 0x2d, 0xb3,
mbedAustin 11:cada08fc8a70 659 0xe6, 0x7c, 0x03, 0x67, 0x45, 0xfa, 0x22, 0xe7,
mbedAustin 11:cada08fc8a70 660 0xe9, 0xb7, 0x37, 0x3b },
mbedAustin 11:cada08fc8a70 661 { 0x00 },
mbedAustin 11:cada08fc8a70 662 { 0xce, 0xa7, 0x40, 0x3d, 0x4d, 0x60, 0x6b, 0x6e,
mbedAustin 11:cada08fc8a70 663 0x07, 0x4e, 0xc5, 0xd3, 0xba, 0xf3, 0x9d, 0x18 },
mbedAustin 11:cada08fc8a70 664 { 0x52, 0x2d, 0xc1, 0xf0, 0x99, 0x56, 0x7d, 0x07,
mbedAustin 11:cada08fc8a70 665 0xf4, 0x7f, 0x37, 0xa3, 0x2a, 0x84, 0x42, 0x7d,
mbedAustin 11:cada08fc8a70 666 0x64, 0x3a, 0x8c, 0xdc, 0xbf, 0xe5, 0xc0, 0xc9,
mbedAustin 11:cada08fc8a70 667 0x75, 0x98, 0xa2, 0xbd, 0x25, 0x55, 0xd1, 0xaa,
mbedAustin 11:cada08fc8a70 668 0x8c, 0xb0, 0x8e, 0x48, 0x59, 0x0d, 0xbb, 0x3d,
mbedAustin 11:cada08fc8a70 669 0xa7, 0xb0, 0x8b, 0x10, 0x56, 0x82, 0x88, 0x38,
mbedAustin 11:cada08fc8a70 670 0xc5, 0xf6, 0x1e, 0x63, 0x93, 0xba, 0x7a, 0x0a,
mbedAustin 11:cada08fc8a70 671 0xbc, 0xc9, 0xf6, 0x62, 0x89, 0x80, 0x15, 0xad },
mbedAustin 11:cada08fc8a70 672 { 0x52, 0x2d, 0xc1, 0xf0, 0x99, 0x56, 0x7d, 0x07,
mbedAustin 11:cada08fc8a70 673 0xf4, 0x7f, 0x37, 0xa3, 0x2a, 0x84, 0x42, 0x7d,
mbedAustin 11:cada08fc8a70 674 0x64, 0x3a, 0x8c, 0xdc, 0xbf, 0xe5, 0xc0, 0xc9,
mbedAustin 11:cada08fc8a70 675 0x75, 0x98, 0xa2, 0xbd, 0x25, 0x55, 0xd1, 0xaa,
mbedAustin 11:cada08fc8a70 676 0x8c, 0xb0, 0x8e, 0x48, 0x59, 0x0d, 0xbb, 0x3d,
mbedAustin 11:cada08fc8a70 677 0xa7, 0xb0, 0x8b, 0x10, 0x56, 0x82, 0x88, 0x38,
mbedAustin 11:cada08fc8a70 678 0xc5, 0xf6, 0x1e, 0x63, 0x93, 0xba, 0x7a, 0x0a,
mbedAustin 11:cada08fc8a70 679 0xbc, 0xc9, 0xf6, 0x62 },
mbedAustin 11:cada08fc8a70 680 { 0xc3, 0x76, 0x2d, 0xf1, 0xca, 0x78, 0x7d, 0x32,
mbedAustin 11:cada08fc8a70 681 0xae, 0x47, 0xc1, 0x3b, 0xf1, 0x98, 0x44, 0xcb,
mbedAustin 11:cada08fc8a70 682 0xaf, 0x1a, 0xe1, 0x4d, 0x0b, 0x97, 0x6a, 0xfa,
mbedAustin 11:cada08fc8a70 683 0xc5, 0x2f, 0xf7, 0xd7, 0x9b, 0xba, 0x9d, 0xe0,
mbedAustin 11:cada08fc8a70 684 0xfe, 0xb5, 0x82, 0xd3, 0x39, 0x34, 0xa4, 0xf0,
mbedAustin 11:cada08fc8a70 685 0x95, 0x4c, 0xc2, 0x36, 0x3b, 0xc7, 0x3f, 0x78,
mbedAustin 11:cada08fc8a70 686 0x62, 0xac, 0x43, 0x0e, 0x64, 0xab, 0xe4, 0x99,
mbedAustin 11:cada08fc8a70 687 0xf4, 0x7c, 0x9b, 0x1f },
mbedAustin 11:cada08fc8a70 688 { 0x5a, 0x8d, 0xef, 0x2f, 0x0c, 0x9e, 0x53, 0xf1,
mbedAustin 11:cada08fc8a70 689 0xf7, 0x5d, 0x78, 0x53, 0x65, 0x9e, 0x2a, 0x20,
mbedAustin 11:cada08fc8a70 690 0xee, 0xb2, 0xb2, 0x2a, 0xaf, 0xde, 0x64, 0x19,
mbedAustin 11:cada08fc8a70 691 0xa0, 0x58, 0xab, 0x4f, 0x6f, 0x74, 0x6b, 0xf4,
mbedAustin 11:cada08fc8a70 692 0x0f, 0xc0, 0xc3, 0xb7, 0x80, 0xf2, 0x44, 0x45,
mbedAustin 11:cada08fc8a70 693 0x2d, 0xa3, 0xeb, 0xf1, 0xc5, 0xd8, 0x2c, 0xde,
mbedAustin 11:cada08fc8a70 694 0xa2, 0x41, 0x89, 0x97, 0x20, 0x0e, 0xf8, 0x2e,
mbedAustin 11:cada08fc8a70 695 0x44, 0xae, 0x7e, 0x3f },
mbedAustin 11:cada08fc8a70 696 };
mbedAustin 11:cada08fc8a70 697
mbedAustin 11:cada08fc8a70 698 static const unsigned char tag[MAX_TESTS * 3][16] =
mbedAustin 11:cada08fc8a70 699 {
mbedAustin 11:cada08fc8a70 700 { 0x58, 0xe2, 0xfc, 0xce, 0xfa, 0x7e, 0x30, 0x61,
mbedAustin 11:cada08fc8a70 701 0x36, 0x7f, 0x1d, 0x57, 0xa4, 0xe7, 0x45, 0x5a },
mbedAustin 11:cada08fc8a70 702 { 0xab, 0x6e, 0x47, 0xd4, 0x2c, 0xec, 0x13, 0xbd,
mbedAustin 11:cada08fc8a70 703 0xf5, 0x3a, 0x67, 0xb2, 0x12, 0x57, 0xbd, 0xdf },
mbedAustin 11:cada08fc8a70 704 { 0x4d, 0x5c, 0x2a, 0xf3, 0x27, 0xcd, 0x64, 0xa6,
mbedAustin 11:cada08fc8a70 705 0x2c, 0xf3, 0x5a, 0xbd, 0x2b, 0xa6, 0xfa, 0xb4 },
mbedAustin 11:cada08fc8a70 706 { 0x5b, 0xc9, 0x4f, 0xbc, 0x32, 0x21, 0xa5, 0xdb,
mbedAustin 11:cada08fc8a70 707 0x94, 0xfa, 0xe9, 0x5a, 0xe7, 0x12, 0x1a, 0x47 },
mbedAustin 11:cada08fc8a70 708 { 0x36, 0x12, 0xd2, 0xe7, 0x9e, 0x3b, 0x07, 0x85,
mbedAustin 11:cada08fc8a70 709 0x56, 0x1b, 0xe1, 0x4a, 0xac, 0xa2, 0xfc, 0xcb },
mbedAustin 11:cada08fc8a70 710 { 0x61, 0x9c, 0xc5, 0xae, 0xff, 0xfe, 0x0b, 0xfa,
mbedAustin 11:cada08fc8a70 711 0x46, 0x2a, 0xf4, 0x3c, 0x16, 0x99, 0xd0, 0x50 },
mbedAustin 11:cada08fc8a70 712 { 0xcd, 0x33, 0xb2, 0x8a, 0xc7, 0x73, 0xf7, 0x4b,
mbedAustin 11:cada08fc8a70 713 0xa0, 0x0e, 0xd1, 0xf3, 0x12, 0x57, 0x24, 0x35 },
mbedAustin 11:cada08fc8a70 714 { 0x2f, 0xf5, 0x8d, 0x80, 0x03, 0x39, 0x27, 0xab,
mbedAustin 11:cada08fc8a70 715 0x8e, 0xf4, 0xd4, 0x58, 0x75, 0x14, 0xf0, 0xfb },
mbedAustin 11:cada08fc8a70 716 { 0x99, 0x24, 0xa7, 0xc8, 0x58, 0x73, 0x36, 0xbf,
mbedAustin 11:cada08fc8a70 717 0xb1, 0x18, 0x02, 0x4d, 0xb8, 0x67, 0x4a, 0x14 },
mbedAustin 11:cada08fc8a70 718 { 0x25, 0x19, 0x49, 0x8e, 0x80, 0xf1, 0x47, 0x8f,
mbedAustin 11:cada08fc8a70 719 0x37, 0xba, 0x55, 0xbd, 0x6d, 0x27, 0x61, 0x8c },
mbedAustin 11:cada08fc8a70 720 { 0x65, 0xdc, 0xc5, 0x7f, 0xcf, 0x62, 0x3a, 0x24,
mbedAustin 11:cada08fc8a70 721 0x09, 0x4f, 0xcc, 0xa4, 0x0d, 0x35, 0x33, 0xf8 },
mbedAustin 11:cada08fc8a70 722 { 0xdc, 0xf5, 0x66, 0xff, 0x29, 0x1c, 0x25, 0xbb,
mbedAustin 11:cada08fc8a70 723 0xb8, 0x56, 0x8f, 0xc3, 0xd3, 0x76, 0xa6, 0xd9 },
mbedAustin 11:cada08fc8a70 724 { 0x53, 0x0f, 0x8a, 0xfb, 0xc7, 0x45, 0x36, 0xb9,
mbedAustin 11:cada08fc8a70 725 0xa9, 0x63, 0xb4, 0xf1, 0xc4, 0xcb, 0x73, 0x8b },
mbedAustin 11:cada08fc8a70 726 { 0xd0, 0xd1, 0xc8, 0xa7, 0x99, 0x99, 0x6b, 0xf0,
mbedAustin 11:cada08fc8a70 727 0x26, 0x5b, 0x98, 0xb5, 0xd4, 0x8a, 0xb9, 0x19 },
mbedAustin 11:cada08fc8a70 728 { 0xb0, 0x94, 0xda, 0xc5, 0xd9, 0x34, 0x71, 0xbd,
mbedAustin 11:cada08fc8a70 729 0xec, 0x1a, 0x50, 0x22, 0x70, 0xe3, 0xcc, 0x6c },
mbedAustin 11:cada08fc8a70 730 { 0x76, 0xfc, 0x6e, 0xce, 0x0f, 0x4e, 0x17, 0x68,
mbedAustin 11:cada08fc8a70 731 0xcd, 0xdf, 0x88, 0x53, 0xbb, 0x2d, 0x55, 0x1b },
mbedAustin 11:cada08fc8a70 732 { 0x3a, 0x33, 0x7d, 0xbf, 0x46, 0xa7, 0x92, 0xc4,
mbedAustin 11:cada08fc8a70 733 0x5e, 0x45, 0x49, 0x13, 0xfe, 0x2e, 0xa8, 0xf2 },
mbedAustin 11:cada08fc8a70 734 { 0xa4, 0x4a, 0x82, 0x66, 0xee, 0x1c, 0x8e, 0xb0,
mbedAustin 11:cada08fc8a70 735 0xc8, 0xb5, 0xd4, 0xcf, 0x5a, 0xe9, 0xf1, 0x9a },
mbedAustin 11:cada08fc8a70 736 };
mbedAustin 11:cada08fc8a70 737
mbedAustin 11:cada08fc8a70 738 int mbedtls_gcm_self_test( int verbose )
mbedAustin 11:cada08fc8a70 739 {
mbedAustin 11:cada08fc8a70 740 mbedtls_gcm_context ctx;
mbedAustin 11:cada08fc8a70 741 unsigned char buf[64];
mbedAustin 11:cada08fc8a70 742 unsigned char tag_buf[16];
mbedAustin 11:cada08fc8a70 743 int i, j, ret;
mbedAustin 11:cada08fc8a70 744 mbedtls_cipher_id_t cipher = MBEDTLS_CIPHER_ID_AES;
mbedAustin 11:cada08fc8a70 745
mbedAustin 11:cada08fc8a70 746 mbedtls_gcm_init( &ctx );
mbedAustin 11:cada08fc8a70 747
mbedAustin 11:cada08fc8a70 748 for( j = 0; j < 3; j++ )
mbedAustin 11:cada08fc8a70 749 {
mbedAustin 11:cada08fc8a70 750 int key_len = 128 + 64 * j;
mbedAustin 11:cada08fc8a70 751
mbedAustin 11:cada08fc8a70 752 for( i = 0; i < MAX_TESTS; i++ )
mbedAustin 11:cada08fc8a70 753 {
mbedAustin 11:cada08fc8a70 754 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 755 mbedtls_printf( " AES-GCM-%3d #%d (%s): ",
mbedAustin 11:cada08fc8a70 756 key_len, i, "enc" );
mbedAustin 11:cada08fc8a70 757
mbedAustin 11:cada08fc8a70 758 mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]], key_len );
mbedAustin 11:cada08fc8a70 759
mbedAustin 11:cada08fc8a70 760 ret = mbedtls_gcm_crypt_and_tag( &ctx, MBEDTLS_GCM_ENCRYPT,
mbedAustin 11:cada08fc8a70 761 pt_len[i],
mbedAustin 11:cada08fc8a70 762 iv[iv_index[i]], iv_len[i],
mbedAustin 11:cada08fc8a70 763 additional[add_index[i]], add_len[i],
mbedAustin 11:cada08fc8a70 764 pt[pt_index[i]], buf, 16, tag_buf );
mbedAustin 11:cada08fc8a70 765
mbedAustin 11:cada08fc8a70 766 if( ret != 0 ||
mbedAustin 11:cada08fc8a70 767 memcmp( buf, ct[j * 6 + i], pt_len[i] ) != 0 ||
mbedAustin 11:cada08fc8a70 768 memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )
mbedAustin 11:cada08fc8a70 769 {
mbedAustin 11:cada08fc8a70 770 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 771 mbedtls_printf( "failed\n" );
mbedAustin 11:cada08fc8a70 772
mbedAustin 11:cada08fc8a70 773 return( 1 );
mbedAustin 11:cada08fc8a70 774 }
mbedAustin 11:cada08fc8a70 775
mbedAustin 11:cada08fc8a70 776 mbedtls_gcm_free( &ctx );
mbedAustin 11:cada08fc8a70 777
mbedAustin 11:cada08fc8a70 778 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 779 mbedtls_printf( "passed\n" );
mbedAustin 11:cada08fc8a70 780
mbedAustin 11:cada08fc8a70 781 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 782 mbedtls_printf( " AES-GCM-%3d #%d (%s): ",
mbedAustin 11:cada08fc8a70 783 key_len, i, "dec" );
mbedAustin 11:cada08fc8a70 784
mbedAustin 11:cada08fc8a70 785 mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]], key_len );
mbedAustin 11:cada08fc8a70 786
mbedAustin 11:cada08fc8a70 787 ret = mbedtls_gcm_crypt_and_tag( &ctx, MBEDTLS_GCM_DECRYPT,
mbedAustin 11:cada08fc8a70 788 pt_len[i],
mbedAustin 11:cada08fc8a70 789 iv[iv_index[i]], iv_len[i],
mbedAustin 11:cada08fc8a70 790 additional[add_index[i]], add_len[i],
mbedAustin 11:cada08fc8a70 791 ct[j * 6 + i], buf, 16, tag_buf );
mbedAustin 11:cada08fc8a70 792
mbedAustin 11:cada08fc8a70 793 if( ret != 0 ||
mbedAustin 11:cada08fc8a70 794 memcmp( buf, pt[pt_index[i]], pt_len[i] ) != 0 ||
mbedAustin 11:cada08fc8a70 795 memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )
mbedAustin 11:cada08fc8a70 796 {
mbedAustin 11:cada08fc8a70 797 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 798 mbedtls_printf( "failed\n" );
mbedAustin 11:cada08fc8a70 799
mbedAustin 11:cada08fc8a70 800 return( 1 );
mbedAustin 11:cada08fc8a70 801 }
mbedAustin 11:cada08fc8a70 802
mbedAustin 11:cada08fc8a70 803 mbedtls_gcm_free( &ctx );
mbedAustin 11:cada08fc8a70 804
mbedAustin 11:cada08fc8a70 805 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 806 mbedtls_printf( "passed\n" );
mbedAustin 11:cada08fc8a70 807
mbedAustin 11:cada08fc8a70 808 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 809 mbedtls_printf( " AES-GCM-%3d #%d split (%s): ",
mbedAustin 11:cada08fc8a70 810 key_len, i, "enc" );
mbedAustin 11:cada08fc8a70 811
mbedAustin 11:cada08fc8a70 812 mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]], key_len );
mbedAustin 11:cada08fc8a70 813
mbedAustin 11:cada08fc8a70 814 ret = mbedtls_gcm_starts( &ctx, MBEDTLS_GCM_ENCRYPT,
mbedAustin 11:cada08fc8a70 815 iv[iv_index[i]], iv_len[i],
mbedAustin 11:cada08fc8a70 816 additional[add_index[i]], add_len[i] );
mbedAustin 11:cada08fc8a70 817 if( ret != 0 )
mbedAustin 11:cada08fc8a70 818 {
mbedAustin 11:cada08fc8a70 819 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 820 mbedtls_printf( "failed\n" );
mbedAustin 11:cada08fc8a70 821
mbedAustin 11:cada08fc8a70 822 return( 1 );
mbedAustin 11:cada08fc8a70 823 }
mbedAustin 11:cada08fc8a70 824
mbedAustin 11:cada08fc8a70 825 if( pt_len[i] > 32 )
mbedAustin 11:cada08fc8a70 826 {
mbedAustin 11:cada08fc8a70 827 size_t rest_len = pt_len[i] - 32;
mbedAustin 11:cada08fc8a70 828 ret = mbedtls_gcm_update( &ctx, 32, pt[pt_index[i]], buf );
mbedAustin 11:cada08fc8a70 829 if( ret != 0 )
mbedAustin 11:cada08fc8a70 830 {
mbedAustin 11:cada08fc8a70 831 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 832 mbedtls_printf( "failed\n" );
mbedAustin 11:cada08fc8a70 833
mbedAustin 11:cada08fc8a70 834 return( 1 );
mbedAustin 11:cada08fc8a70 835 }
mbedAustin 11:cada08fc8a70 836
mbedAustin 11:cada08fc8a70 837 ret = mbedtls_gcm_update( &ctx, rest_len, pt[pt_index[i]] + 32,
mbedAustin 11:cada08fc8a70 838 buf + 32 );
mbedAustin 11:cada08fc8a70 839 if( ret != 0 )
mbedAustin 11:cada08fc8a70 840 {
mbedAustin 11:cada08fc8a70 841 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 842 mbedtls_printf( "failed\n" );
mbedAustin 11:cada08fc8a70 843
mbedAustin 11:cada08fc8a70 844 return( 1 );
mbedAustin 11:cada08fc8a70 845 }
mbedAustin 11:cada08fc8a70 846 }
mbedAustin 11:cada08fc8a70 847 else
mbedAustin 11:cada08fc8a70 848 {
mbedAustin 11:cada08fc8a70 849 ret = mbedtls_gcm_update( &ctx, pt_len[i], pt[pt_index[i]], buf );
mbedAustin 11:cada08fc8a70 850 if( ret != 0 )
mbedAustin 11:cada08fc8a70 851 {
mbedAustin 11:cada08fc8a70 852 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 853 mbedtls_printf( "failed\n" );
mbedAustin 11:cada08fc8a70 854
mbedAustin 11:cada08fc8a70 855 return( 1 );
mbedAustin 11:cada08fc8a70 856 }
mbedAustin 11:cada08fc8a70 857 }
mbedAustin 11:cada08fc8a70 858
mbedAustin 11:cada08fc8a70 859 ret = mbedtls_gcm_finish( &ctx, tag_buf, 16 );
mbedAustin 11:cada08fc8a70 860 if( ret != 0 ||
mbedAustin 11:cada08fc8a70 861 memcmp( buf, ct[j * 6 + i], pt_len[i] ) != 0 ||
mbedAustin 11:cada08fc8a70 862 memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )
mbedAustin 11:cada08fc8a70 863 {
mbedAustin 11:cada08fc8a70 864 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 865 mbedtls_printf( "failed\n" );
mbedAustin 11:cada08fc8a70 866
mbedAustin 11:cada08fc8a70 867 return( 1 );
mbedAustin 11:cada08fc8a70 868 }
mbedAustin 11:cada08fc8a70 869
mbedAustin 11:cada08fc8a70 870 mbedtls_gcm_free( &ctx );
mbedAustin 11:cada08fc8a70 871
mbedAustin 11:cada08fc8a70 872 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 873 mbedtls_printf( "passed\n" );
mbedAustin 11:cada08fc8a70 874
mbedAustin 11:cada08fc8a70 875 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 876 mbedtls_printf( " AES-GCM-%3d #%d split (%s): ",
mbedAustin 11:cada08fc8a70 877 key_len, i, "dec" );
mbedAustin 11:cada08fc8a70 878
mbedAustin 11:cada08fc8a70 879 mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]], key_len );
mbedAustin 11:cada08fc8a70 880
mbedAustin 11:cada08fc8a70 881 ret = mbedtls_gcm_starts( &ctx, MBEDTLS_GCM_DECRYPT,
mbedAustin 11:cada08fc8a70 882 iv[iv_index[i]], iv_len[i],
mbedAustin 11:cada08fc8a70 883 additional[add_index[i]], add_len[i] );
mbedAustin 11:cada08fc8a70 884 if( ret != 0 )
mbedAustin 11:cada08fc8a70 885 {
mbedAustin 11:cada08fc8a70 886 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 887 mbedtls_printf( "failed\n" );
mbedAustin 11:cada08fc8a70 888
mbedAustin 11:cada08fc8a70 889 return( 1 );
mbedAustin 11:cada08fc8a70 890 }
mbedAustin 11:cada08fc8a70 891
mbedAustin 11:cada08fc8a70 892 if( pt_len[i] > 32 )
mbedAustin 11:cada08fc8a70 893 {
mbedAustin 11:cada08fc8a70 894 size_t rest_len = pt_len[i] - 32;
mbedAustin 11:cada08fc8a70 895 ret = mbedtls_gcm_update( &ctx, 32, ct[j * 6 + i], buf );
mbedAustin 11:cada08fc8a70 896 if( ret != 0 )
mbedAustin 11:cada08fc8a70 897 {
mbedAustin 11:cada08fc8a70 898 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 899 mbedtls_printf( "failed\n" );
mbedAustin 11:cada08fc8a70 900
mbedAustin 11:cada08fc8a70 901 return( 1 );
mbedAustin 11:cada08fc8a70 902 }
mbedAustin 11:cada08fc8a70 903
mbedAustin 11:cada08fc8a70 904 ret = mbedtls_gcm_update( &ctx, rest_len, ct[j * 6 + i] + 32,
mbedAustin 11:cada08fc8a70 905 buf + 32 );
mbedAustin 11:cada08fc8a70 906 if( ret != 0 )
mbedAustin 11:cada08fc8a70 907 {
mbedAustin 11:cada08fc8a70 908 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 909 mbedtls_printf( "failed\n" );
mbedAustin 11:cada08fc8a70 910
mbedAustin 11:cada08fc8a70 911 return( 1 );
mbedAustin 11:cada08fc8a70 912 }
mbedAustin 11:cada08fc8a70 913 }
mbedAustin 11:cada08fc8a70 914 else
mbedAustin 11:cada08fc8a70 915 {
mbedAustin 11:cada08fc8a70 916 ret = mbedtls_gcm_update( &ctx, pt_len[i], ct[j * 6 + i], buf );
mbedAustin 11:cada08fc8a70 917 if( ret != 0 )
mbedAustin 11:cada08fc8a70 918 {
mbedAustin 11:cada08fc8a70 919 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 920 mbedtls_printf( "failed\n" );
mbedAustin 11:cada08fc8a70 921
mbedAustin 11:cada08fc8a70 922 return( 1 );
mbedAustin 11:cada08fc8a70 923 }
mbedAustin 11:cada08fc8a70 924 }
mbedAustin 11:cada08fc8a70 925
mbedAustin 11:cada08fc8a70 926 ret = mbedtls_gcm_finish( &ctx, tag_buf, 16 );
mbedAustin 11:cada08fc8a70 927 if( ret != 0 ||
mbedAustin 11:cada08fc8a70 928 memcmp( buf, pt[pt_index[i]], pt_len[i] ) != 0 ||
mbedAustin 11:cada08fc8a70 929 memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )
mbedAustin 11:cada08fc8a70 930 {
mbedAustin 11:cada08fc8a70 931 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 932 mbedtls_printf( "failed\n" );
mbedAustin 11:cada08fc8a70 933
mbedAustin 11:cada08fc8a70 934 return( 1 );
mbedAustin 11:cada08fc8a70 935 }
mbedAustin 11:cada08fc8a70 936
mbedAustin 11:cada08fc8a70 937 mbedtls_gcm_free( &ctx );
mbedAustin 11:cada08fc8a70 938
mbedAustin 11:cada08fc8a70 939 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 940 mbedtls_printf( "passed\n" );
mbedAustin 11:cada08fc8a70 941
mbedAustin 11:cada08fc8a70 942 }
mbedAustin 11:cada08fc8a70 943 }
mbedAustin 11:cada08fc8a70 944
mbedAustin 11:cada08fc8a70 945 if( verbose != 0 )
mbedAustin 11:cada08fc8a70 946 mbedtls_printf( "\n" );
mbedAustin 11:cada08fc8a70 947
mbedAustin 11:cada08fc8a70 948 return( 0 );
mbedAustin 11:cada08fc8a70 949 }
mbedAustin 11:cada08fc8a70 950
mbedAustin 11:cada08fc8a70 951 #endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
mbedAustin 11:cada08fc8a70 952
mbedAustin 11:cada08fc8a70 953 #endif /* MBEDTLS_GCM_C */