Magnificent7 / Hackathon

Includes library modifications to allow access to AIN_4 (AIN_0 / 5)

mbd_os/features/mbedtls/src/gcm.c@0:eafc3fd41f75, 2016-09-20 (annotated)

Committer:
bryantaylor
Date:
Tue Sep 20 21:26:12 2016 +0000
Revision:
0:eafc3fd41f75
hackathon

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bryantaylor 0:eafc3fd41f75 1 /*
bryantaylor 0:eafc3fd41f75 2 * NIST SP800-38D compliant GCM implementation
bryantaylor 0:eafc3fd41f75 3 *
bryantaylor 0:eafc3fd41f75 4 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
bryantaylor 0:eafc3fd41f75 5 * SPDX-License-Identifier: Apache-2.0
bryantaylor 0:eafc3fd41f75 6 *
bryantaylor 0:eafc3fd41f75 7 * Licensed under the Apache License, Version 2.0 (the "License"); you may
bryantaylor 0:eafc3fd41f75 8 * not use this file except in compliance with the License.
bryantaylor 0:eafc3fd41f75 9 * You may obtain a copy of the License at
bryantaylor 0:eafc3fd41f75 10 *
bryantaylor 0:eafc3fd41f75 11 * http://www.apache.org/licenses/LICENSE-2.0
bryantaylor 0:eafc3fd41f75 12 *
bryantaylor 0:eafc3fd41f75 13 * Unless required by applicable law or agreed to in writing, software
bryantaylor 0:eafc3fd41f75 14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
bryantaylor 0:eafc3fd41f75 15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bryantaylor 0:eafc3fd41f75 16 * See the License for the specific language governing permissions and
bryantaylor 0:eafc3fd41f75 17 * limitations under the License.
bryantaylor 0:eafc3fd41f75 18 *
bryantaylor 0:eafc3fd41f75 19 * This file is part of mbed TLS (https://tls.mbed.org)
bryantaylor 0:eafc3fd41f75 20 */
bryantaylor 0:eafc3fd41f75 21
bryantaylor 0:eafc3fd41f75 22 /*
bryantaylor 0:eafc3fd41f75 23 * http://csrc.nist.gov/publications/nistpubs/800-38D/SP-800-38D.pdf
bryantaylor 0:eafc3fd41f75 24 *
bryantaylor 0:eafc3fd41f75 25 * See also:
bryantaylor 0:eafc3fd41f75 26 * [MGV] http://csrc.nist.gov/groups/ST/toolkit/BCM/documents/proposedmodes/gcm/gcm-revised-spec.pdf
bryantaylor 0:eafc3fd41f75 27 *
bryantaylor 0:eafc3fd41f75 28 * We use the algorithm described as Shoup's method with 4-bit tables in
bryantaylor 0:eafc3fd41f75 29 * [MGV] 4.1, pp. 12-13, to enhance speed without using too much memory.
bryantaylor 0:eafc3fd41f75 30 */
bryantaylor 0:eafc3fd41f75 31
bryantaylor 0:eafc3fd41f75 32 #if !defined(MBEDTLS_CONFIG_FILE)
bryantaylor 0:eafc3fd41f75 33 #include "mbedtls/config.h"
bryantaylor 0:eafc3fd41f75 34 #else
bryantaylor 0:eafc3fd41f75 35 #include MBEDTLS_CONFIG_FILE
bryantaylor 0:eafc3fd41f75 36 #endif
bryantaylor 0:eafc3fd41f75 37
bryantaylor 0:eafc3fd41f75 38 #if defined(MBEDTLS_GCM_C)
bryantaylor 0:eafc3fd41f75 39
bryantaylor 0:eafc3fd41f75 40 #include "mbedtls/gcm.h"
bryantaylor 0:eafc3fd41f75 41
bryantaylor 0:eafc3fd41f75 42 #include <string.h>
bryantaylor 0:eafc3fd41f75 43
bryantaylor 0:eafc3fd41f75 44 #if defined(MBEDTLS_AESNI_C)
bryantaylor 0:eafc3fd41f75 45 #include "mbedtls/aesni.h"
bryantaylor 0:eafc3fd41f75 46 #endif
bryantaylor 0:eafc3fd41f75 47
bryantaylor 0:eafc3fd41f75 48 #if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
bryantaylor 0:eafc3fd41f75 49 #if defined(MBEDTLS_PLATFORM_C)
bryantaylor 0:eafc3fd41f75 50 #include "mbedtls/platform.h"
bryantaylor 0:eafc3fd41f75 51 #else
bryantaylor 0:eafc3fd41f75 52 #include <stdio.h>
bryantaylor 0:eafc3fd41f75 53 #define mbedtls_printf printf
bryantaylor 0:eafc3fd41f75 54 #endif /* MBEDTLS_PLATFORM_C */
bryantaylor 0:eafc3fd41f75 55 #endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
bryantaylor 0:eafc3fd41f75 56
bryantaylor 0:eafc3fd41f75 57 /*
bryantaylor 0:eafc3fd41f75 58 * 32-bit integer manipulation macros (big endian)
bryantaylor 0:eafc3fd41f75 59 */
bryantaylor 0:eafc3fd41f75 60 #ifndef GET_UINT32_BE
bryantaylor 0:eafc3fd41f75 61 #define GET_UINT32_BE(n,b,i) \
bryantaylor 0:eafc3fd41f75 62 { \
bryantaylor 0:eafc3fd41f75 63 (n) = ( (uint32_t) (b)[(i) ] << 24 ) \
bryantaylor 0:eafc3fd41f75 64 | ( (uint32_t) (b)[(i) + 1] << 16 ) \
bryantaylor 0:eafc3fd41f75 65 | ( (uint32_t) (b)[(i) + 2] << 8 ) \
bryantaylor 0:eafc3fd41f75 66 | ( (uint32_t) (b)[(i) + 3] ); \
bryantaylor 0:eafc3fd41f75 67 }
bryantaylor 0:eafc3fd41f75 68 #endif
bryantaylor 0:eafc3fd41f75 69
bryantaylor 0:eafc3fd41f75 70 #ifndef PUT_UINT32_BE
bryantaylor 0:eafc3fd41f75 71 #define PUT_UINT32_BE(n,b,i) \
bryantaylor 0:eafc3fd41f75 72 { \
bryantaylor 0:eafc3fd41f75 73 (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
bryantaylor 0:eafc3fd41f75 74 (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
bryantaylor 0:eafc3fd41f75 75 (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
bryantaylor 0:eafc3fd41f75 76 (b)[(i) + 3] = (unsigned char) ( (n) ); \
bryantaylor 0:eafc3fd41f75 77 }
bryantaylor 0:eafc3fd41f75 78 #endif
bryantaylor 0:eafc3fd41f75 79
bryantaylor 0:eafc3fd41f75 80 /* Implementation that should never be optimized out by the compiler */
bryantaylor 0:eafc3fd41f75 81 static void mbedtls_zeroize( void *v, size_t n ) {
bryantaylor 0:eafc3fd41f75 82 volatile unsigned char *p = v; while( n-- ) *p++ = 0;
bryantaylor 0:eafc3fd41f75 83 }
bryantaylor 0:eafc3fd41f75 84
bryantaylor 0:eafc3fd41f75 85 /*
bryantaylor 0:eafc3fd41f75 86 * Initialize a context
bryantaylor 0:eafc3fd41f75 87 */
bryantaylor 0:eafc3fd41f75 88 void mbedtls_gcm_init( mbedtls_gcm_context *ctx )
bryantaylor 0:eafc3fd41f75 89 {
bryantaylor 0:eafc3fd41f75 90 memset( ctx, 0, sizeof( mbedtls_gcm_context ) );
bryantaylor 0:eafc3fd41f75 91 }
bryantaylor 0:eafc3fd41f75 92
bryantaylor 0:eafc3fd41f75 93 /*
bryantaylor 0:eafc3fd41f75 94 * Precompute small multiples of H, that is set
bryantaylor 0:eafc3fd41f75 95 * HH[i] || HL[i] = H times i,
bryantaylor 0:eafc3fd41f75 96 * where i is seen as a field element as in [MGV], ie high-order bits
bryantaylor 0:eafc3fd41f75 97 * correspond to low powers of P. The result is stored in the same way, that
bryantaylor 0:eafc3fd41f75 98 * is the high-order bit of HH corresponds to P^0 and the low-order bit of HL
bryantaylor 0:eafc3fd41f75 99 * corresponds to P^127.
bryantaylor 0:eafc3fd41f75 100 */
bryantaylor 0:eafc3fd41f75 101 static int gcm_gen_table( mbedtls_gcm_context *ctx )
bryantaylor 0:eafc3fd41f75 102 {
bryantaylor 0:eafc3fd41f75 103 int ret, i, j;
bryantaylor 0:eafc3fd41f75 104 uint64_t hi, lo;
bryantaylor 0:eafc3fd41f75 105 uint64_t vl, vh;
bryantaylor 0:eafc3fd41f75 106 unsigned char h[16];
bryantaylor 0:eafc3fd41f75 107 size_t olen = 0;
bryantaylor 0:eafc3fd41f75 108
bryantaylor 0:eafc3fd41f75 109 memset( h, 0, 16 );
bryantaylor 0:eafc3fd41f75 110 if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, h, 16, h, &olen ) ) != 0 )
bryantaylor 0:eafc3fd41f75 111 return( ret );
bryantaylor 0:eafc3fd41f75 112
bryantaylor 0:eafc3fd41f75 113 /* pack h as two 64-bits ints, big-endian */
bryantaylor 0:eafc3fd41f75 114 GET_UINT32_BE( hi, h, 0 );
bryantaylor 0:eafc3fd41f75 115 GET_UINT32_BE( lo, h, 4 );
bryantaylor 0:eafc3fd41f75 116 vh = (uint64_t) hi << 32 | lo;
bryantaylor 0:eafc3fd41f75 117
bryantaylor 0:eafc3fd41f75 118 GET_UINT32_BE( hi, h, 8 );
bryantaylor 0:eafc3fd41f75 119 GET_UINT32_BE( lo, h, 12 );
bryantaylor 0:eafc3fd41f75 120 vl = (uint64_t) hi << 32 | lo;
bryantaylor 0:eafc3fd41f75 121
bryantaylor 0:eafc3fd41f75 122 /* 8 = 1000 corresponds to 1 in GF(2^128) */
bryantaylor 0:eafc3fd41f75 123 ctx->HL[8] = vl;
bryantaylor 0:eafc3fd41f75 124 ctx->HH[8] = vh;
bryantaylor 0:eafc3fd41f75 125
bryantaylor 0:eafc3fd41f75 126 #if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64)
bryantaylor 0:eafc3fd41f75 127 /* With CLMUL support, we need only h, not the rest of the table */
bryantaylor 0:eafc3fd41f75 128 if( mbedtls_aesni_has_support( MBEDTLS_AESNI_CLMUL ) )
bryantaylor 0:eafc3fd41f75 129 return( 0 );
bryantaylor 0:eafc3fd41f75 130 #endif
bryantaylor 0:eafc3fd41f75 131
bryantaylor 0:eafc3fd41f75 132 /* 0 corresponds to 0 in GF(2^128) */
bryantaylor 0:eafc3fd41f75 133 ctx->HH[0] = 0;
bryantaylor 0:eafc3fd41f75 134 ctx->HL[0] = 0;
bryantaylor 0:eafc3fd41f75 135
bryantaylor 0:eafc3fd41f75 136 for( i = 4; i > 0; i >>= 1 )
bryantaylor 0:eafc3fd41f75 137 {
bryantaylor 0:eafc3fd41f75 138 uint32_t T = ( vl & 1 ) * 0xe1000000U;
bryantaylor 0:eafc3fd41f75 139 vl = ( vh << 63 ) | ( vl >> 1 );
bryantaylor 0:eafc3fd41f75 140 vh = ( vh >> 1 ) ^ ( (uint64_t) T << 32);
bryantaylor 0:eafc3fd41f75 141
bryantaylor 0:eafc3fd41f75 142 ctx->HL[i] = vl;
bryantaylor 0:eafc3fd41f75 143 ctx->HH[i] = vh;
bryantaylor 0:eafc3fd41f75 144 }
bryantaylor 0:eafc3fd41f75 145
bryantaylor 0:eafc3fd41f75 146 for( i = 2; i <= 8; i *= 2 )
bryantaylor 0:eafc3fd41f75 147 {
bryantaylor 0:eafc3fd41f75 148 uint64_t *HiL = ctx->HL + i, *HiH = ctx->HH + i;
bryantaylor 0:eafc3fd41f75 149 vh = *HiH;
bryantaylor 0:eafc3fd41f75 150 vl = *HiL;
bryantaylor 0:eafc3fd41f75 151 for( j = 1; j < i; j++ )
bryantaylor 0:eafc3fd41f75 152 {
bryantaylor 0:eafc3fd41f75 153 HiH[j] = vh ^ ctx->HH[j];
bryantaylor 0:eafc3fd41f75 154 HiL[j] = vl ^ ctx->HL[j];
bryantaylor 0:eafc3fd41f75 155 }
bryantaylor 0:eafc3fd41f75 156 }
bryantaylor 0:eafc3fd41f75 157
bryantaylor 0:eafc3fd41f75 158 return( 0 );
bryantaylor 0:eafc3fd41f75 159 }
bryantaylor 0:eafc3fd41f75 160
bryantaylor 0:eafc3fd41f75 161 int mbedtls_gcm_setkey( mbedtls_gcm_context *ctx,
bryantaylor 0:eafc3fd41f75 162 mbedtls_cipher_id_t cipher,
bryantaylor 0:eafc3fd41f75 163 const unsigned char *key,
bryantaylor 0:eafc3fd41f75 164 unsigned int keybits )
bryantaylor 0:eafc3fd41f75 165 {
bryantaylor 0:eafc3fd41f75 166 int ret;
bryantaylor 0:eafc3fd41f75 167 const mbedtls_cipher_info_t *cipher_info;
bryantaylor 0:eafc3fd41f75 168
bryantaylor 0:eafc3fd41f75 169 cipher_info = mbedtls_cipher_info_from_values( cipher, keybits, MBEDTLS_MODE_ECB );
bryantaylor 0:eafc3fd41f75 170 if( cipher_info == NULL )
bryantaylor 0:eafc3fd41f75 171 return( MBEDTLS_ERR_GCM_BAD_INPUT );
bryantaylor 0:eafc3fd41f75 172
bryantaylor 0:eafc3fd41f75 173 if( cipher_info->block_size != 16 )
bryantaylor 0:eafc3fd41f75 174 return( MBEDTLS_ERR_GCM_BAD_INPUT );
bryantaylor 0:eafc3fd41f75 175
bryantaylor 0:eafc3fd41f75 176 mbedtls_cipher_free( &ctx->cipher_ctx );
bryantaylor 0:eafc3fd41f75 177
bryantaylor 0:eafc3fd41f75 178 if( ( ret = mbedtls_cipher_setup( &ctx->cipher_ctx, cipher_info ) ) != 0 )
bryantaylor 0:eafc3fd41f75 179 return( ret );
bryantaylor 0:eafc3fd41f75 180
bryantaylor 0:eafc3fd41f75 181 if( ( ret = mbedtls_cipher_setkey( &ctx->cipher_ctx, key, keybits,
bryantaylor 0:eafc3fd41f75 182 MBEDTLS_ENCRYPT ) ) != 0 )
bryantaylor 0:eafc3fd41f75 183 {
bryantaylor 0:eafc3fd41f75 184 return( ret );
bryantaylor 0:eafc3fd41f75 185 }
bryantaylor 0:eafc3fd41f75 186
bryantaylor 0:eafc3fd41f75 187 if( ( ret = gcm_gen_table( ctx ) ) != 0 )
bryantaylor 0:eafc3fd41f75 188 return( ret );
bryantaylor 0:eafc3fd41f75 189
bryantaylor 0:eafc3fd41f75 190 return( 0 );
bryantaylor 0:eafc3fd41f75 191 }
bryantaylor 0:eafc3fd41f75 192
bryantaylor 0:eafc3fd41f75 193 /*
bryantaylor 0:eafc3fd41f75 194 * Shoup's method for multiplication use this table with
bryantaylor 0:eafc3fd41f75 195 * last4[x] = x times P^128
bryantaylor 0:eafc3fd41f75 196 * where x and last4[x] are seen as elements of GF(2^128) as in [MGV]
bryantaylor 0:eafc3fd41f75 197 */
bryantaylor 0:eafc3fd41f75 198 static const uint64_t last4[16] =
bryantaylor 0:eafc3fd41f75 199 {
bryantaylor 0:eafc3fd41f75 200 0x0000, 0x1c20, 0x3840, 0x2460,
bryantaylor 0:eafc3fd41f75 201 0x7080, 0x6ca0, 0x48c0, 0x54e0,
bryantaylor 0:eafc3fd41f75 202 0xe100, 0xfd20, 0xd940, 0xc560,
bryantaylor 0:eafc3fd41f75 203 0x9180, 0x8da0, 0xa9c0, 0xb5e0
bryantaylor 0:eafc3fd41f75 204 };
bryantaylor 0:eafc3fd41f75 205
bryantaylor 0:eafc3fd41f75 206 /*
bryantaylor 0:eafc3fd41f75 207 * Sets output to x times H using the precomputed tables.
bryantaylor 0:eafc3fd41f75 208 * x and output are seen as elements of GF(2^128) as in [MGV].
bryantaylor 0:eafc3fd41f75 209 */
bryantaylor 0:eafc3fd41f75 210 static void gcm_mult( mbedtls_gcm_context *ctx, const unsigned char x[16],
bryantaylor 0:eafc3fd41f75 211 unsigned char output[16] )
bryantaylor 0:eafc3fd41f75 212 {
bryantaylor 0:eafc3fd41f75 213 int i = 0;
bryantaylor 0:eafc3fd41f75 214 unsigned char lo, hi, rem;
bryantaylor 0:eafc3fd41f75 215 uint64_t zh, zl;
bryantaylor 0:eafc3fd41f75 216
bryantaylor 0:eafc3fd41f75 217 #if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64)
bryantaylor 0:eafc3fd41f75 218 if( mbedtls_aesni_has_support( MBEDTLS_AESNI_CLMUL ) ) {
bryantaylor 0:eafc3fd41f75 219 unsigned char h[16];
bryantaylor 0:eafc3fd41f75 220
bryantaylor 0:eafc3fd41f75 221 PUT_UINT32_BE( ctx->HH[8] >> 32, h, 0 );
bryantaylor 0:eafc3fd41f75 222 PUT_UINT32_BE( ctx->HH[8], h, 4 );
bryantaylor 0:eafc3fd41f75 223 PUT_UINT32_BE( ctx->HL[8] >> 32, h, 8 );
bryantaylor 0:eafc3fd41f75 224 PUT_UINT32_BE( ctx->HL[8], h, 12 );
bryantaylor 0:eafc3fd41f75 225
bryantaylor 0:eafc3fd41f75 226 mbedtls_aesni_gcm_mult( output, x, h );
bryantaylor 0:eafc3fd41f75 227 return;
bryantaylor 0:eafc3fd41f75 228 }
bryantaylor 0:eafc3fd41f75 229 #endif /* MBEDTLS_AESNI_C && MBEDTLS_HAVE_X86_64 */
bryantaylor 0:eafc3fd41f75 230
bryantaylor 0:eafc3fd41f75 231 lo = x[15] & 0xf;
bryantaylor 0:eafc3fd41f75 232
bryantaylor 0:eafc3fd41f75 233 zh = ctx->HH[lo];
bryantaylor 0:eafc3fd41f75 234 zl = ctx->HL[lo];
bryantaylor 0:eafc3fd41f75 235
bryantaylor 0:eafc3fd41f75 236 for( i = 15; i >= 0; i-- )
bryantaylor 0:eafc3fd41f75 237 {
bryantaylor 0:eafc3fd41f75 238 lo = x[i] & 0xf;
bryantaylor 0:eafc3fd41f75 239 hi = x[i] >> 4;
bryantaylor 0:eafc3fd41f75 240
bryantaylor 0:eafc3fd41f75 241 if( i != 15 )
bryantaylor 0:eafc3fd41f75 242 {
bryantaylor 0:eafc3fd41f75 243 rem = (unsigned char) zl & 0xf;
bryantaylor 0:eafc3fd41f75 244 zl = ( zh << 60 ) | ( zl >> 4 );
bryantaylor 0:eafc3fd41f75 245 zh = ( zh >> 4 );
bryantaylor 0:eafc3fd41f75 246 zh ^= (uint64_t) last4[rem] << 48;
bryantaylor 0:eafc3fd41f75 247 zh ^= ctx->HH[lo];
bryantaylor 0:eafc3fd41f75 248 zl ^= ctx->HL[lo];
bryantaylor 0:eafc3fd41f75 249
bryantaylor 0:eafc3fd41f75 250 }
bryantaylor 0:eafc3fd41f75 251
bryantaylor 0:eafc3fd41f75 252 rem = (unsigned char) zl & 0xf;
bryantaylor 0:eafc3fd41f75 253 zl = ( zh << 60 ) | ( zl >> 4 );
bryantaylor 0:eafc3fd41f75 254 zh = ( zh >> 4 );
bryantaylor 0:eafc3fd41f75 255 zh ^= (uint64_t) last4[rem] << 48;
bryantaylor 0:eafc3fd41f75 256 zh ^= ctx->HH[hi];
bryantaylor 0:eafc3fd41f75 257 zl ^= ctx->HL[hi];
bryantaylor 0:eafc3fd41f75 258 }
bryantaylor 0:eafc3fd41f75 259
bryantaylor 0:eafc3fd41f75 260 PUT_UINT32_BE( zh >> 32, output, 0 );
bryantaylor 0:eafc3fd41f75 261 PUT_UINT32_BE( zh, output, 4 );
bryantaylor 0:eafc3fd41f75 262 PUT_UINT32_BE( zl >> 32, output, 8 );
bryantaylor 0:eafc3fd41f75 263 PUT_UINT32_BE( zl, output, 12 );
bryantaylor 0:eafc3fd41f75 264 }
bryantaylor 0:eafc3fd41f75 265
bryantaylor 0:eafc3fd41f75 266 int mbedtls_gcm_starts( mbedtls_gcm_context *ctx,
bryantaylor 0:eafc3fd41f75 267 int mode,
bryantaylor 0:eafc3fd41f75 268 const unsigned char *iv,
bryantaylor 0:eafc3fd41f75 269 size_t iv_len,
bryantaylor 0:eafc3fd41f75 270 const unsigned char *add,
bryantaylor 0:eafc3fd41f75 271 size_t add_len )
bryantaylor 0:eafc3fd41f75 272 {
bryantaylor 0:eafc3fd41f75 273 int ret;
bryantaylor 0:eafc3fd41f75 274 unsigned char work_buf[16];
bryantaylor 0:eafc3fd41f75 275 size_t i;
bryantaylor 0:eafc3fd41f75 276 const unsigned char *p;
bryantaylor 0:eafc3fd41f75 277 size_t use_len, olen = 0;
bryantaylor 0:eafc3fd41f75 278
bryantaylor 0:eafc3fd41f75 279 /* IV and AD are limited to 2^64 bits, so 2^61 bytes */
bryantaylor 0:eafc3fd41f75 280 if( ( (uint64_t) iv_len ) >> 61 != 0 ||
bryantaylor 0:eafc3fd41f75 281 ( (uint64_t) add_len ) >> 61 != 0 )
bryantaylor 0:eafc3fd41f75 282 {
bryantaylor 0:eafc3fd41f75 283 return( MBEDTLS_ERR_GCM_BAD_INPUT );
bryantaylor 0:eafc3fd41f75 284 }
bryantaylor 0:eafc3fd41f75 285
bryantaylor 0:eafc3fd41f75 286 memset( ctx->y, 0x00, sizeof(ctx->y) );
bryantaylor 0:eafc3fd41f75 287 memset( ctx->buf, 0x00, sizeof(ctx->buf) );
bryantaylor 0:eafc3fd41f75 288
bryantaylor 0:eafc3fd41f75 289 ctx->mode = mode;
bryantaylor 0:eafc3fd41f75 290 ctx->len = 0;
bryantaylor 0:eafc3fd41f75 291 ctx->add_len = 0;
bryantaylor 0:eafc3fd41f75 292
bryantaylor 0:eafc3fd41f75 293 if( iv_len == 12 )
bryantaylor 0:eafc3fd41f75 294 {
bryantaylor 0:eafc3fd41f75 295 memcpy( ctx->y, iv, iv_len );
bryantaylor 0:eafc3fd41f75 296 ctx->y[15] = 1;
bryantaylor 0:eafc3fd41f75 297 }
bryantaylor 0:eafc3fd41f75 298 else
bryantaylor 0:eafc3fd41f75 299 {
bryantaylor 0:eafc3fd41f75 300 memset( work_buf, 0x00, 16 );
bryantaylor 0:eafc3fd41f75 301 PUT_UINT32_BE( iv_len * 8, work_buf, 12 );
bryantaylor 0:eafc3fd41f75 302
bryantaylor 0:eafc3fd41f75 303 p = iv;
bryantaylor 0:eafc3fd41f75 304 while( iv_len > 0 )
bryantaylor 0:eafc3fd41f75 305 {
bryantaylor 0:eafc3fd41f75 306 use_len = ( iv_len < 16 ) ? iv_len : 16;
bryantaylor 0:eafc3fd41f75 307
bryantaylor 0:eafc3fd41f75 308 for( i = 0; i < use_len; i++ )
bryantaylor 0:eafc3fd41f75 309 ctx->y[i] ^= p[i];
bryantaylor 0:eafc3fd41f75 310
bryantaylor 0:eafc3fd41f75 311 gcm_mult( ctx, ctx->y, ctx->y );
bryantaylor 0:eafc3fd41f75 312
bryantaylor 0:eafc3fd41f75 313 iv_len -= use_len;
bryantaylor 0:eafc3fd41f75 314 p += use_len;
bryantaylor 0:eafc3fd41f75 315 }
bryantaylor 0:eafc3fd41f75 316
bryantaylor 0:eafc3fd41f75 317 for( i = 0; i < 16; i++ )
bryantaylor 0:eafc3fd41f75 318 ctx->y[i] ^= work_buf[i];
bryantaylor 0:eafc3fd41f75 319
bryantaylor 0:eafc3fd41f75 320 gcm_mult( ctx, ctx->y, ctx->y );
bryantaylor 0:eafc3fd41f75 321 }
bryantaylor 0:eafc3fd41f75 322
bryantaylor 0:eafc3fd41f75 323 if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, ctx->y, 16, ctx->base_ectr,
bryantaylor 0:eafc3fd41f75 324 &olen ) ) != 0 )
bryantaylor 0:eafc3fd41f75 325 {
bryantaylor 0:eafc3fd41f75 326 return( ret );
bryantaylor 0:eafc3fd41f75 327 }
bryantaylor 0:eafc3fd41f75 328
bryantaylor 0:eafc3fd41f75 329 ctx->add_len = add_len;
bryantaylor 0:eafc3fd41f75 330 p = add;
bryantaylor 0:eafc3fd41f75 331 while( add_len > 0 )
bryantaylor 0:eafc3fd41f75 332 {
bryantaylor 0:eafc3fd41f75 333 use_len = ( add_len < 16 ) ? add_len : 16;
bryantaylor 0:eafc3fd41f75 334
bryantaylor 0:eafc3fd41f75 335 for( i = 0; i < use_len; i++ )
bryantaylor 0:eafc3fd41f75 336 ctx->buf[i] ^= p[i];
bryantaylor 0:eafc3fd41f75 337
bryantaylor 0:eafc3fd41f75 338 gcm_mult( ctx, ctx->buf, ctx->buf );
bryantaylor 0:eafc3fd41f75 339
bryantaylor 0:eafc3fd41f75 340 add_len -= use_len;
bryantaylor 0:eafc3fd41f75 341 p += use_len;
bryantaylor 0:eafc3fd41f75 342 }
bryantaylor 0:eafc3fd41f75 343
bryantaylor 0:eafc3fd41f75 344 return( 0 );
bryantaylor 0:eafc3fd41f75 345 }
bryantaylor 0:eafc3fd41f75 346
bryantaylor 0:eafc3fd41f75 347 int mbedtls_gcm_update( mbedtls_gcm_context *ctx,
bryantaylor 0:eafc3fd41f75 348 size_t length,
bryantaylor 0:eafc3fd41f75 349 const unsigned char *input,
bryantaylor 0:eafc3fd41f75 350 unsigned char *output )
bryantaylor 0:eafc3fd41f75 351 {
bryantaylor 0:eafc3fd41f75 352 int ret;
bryantaylor 0:eafc3fd41f75 353 unsigned char ectr[16];
bryantaylor 0:eafc3fd41f75 354 size_t i;
bryantaylor 0:eafc3fd41f75 355 const unsigned char *p;
bryantaylor 0:eafc3fd41f75 356 unsigned char *out_p = output;
bryantaylor 0:eafc3fd41f75 357 size_t use_len, olen = 0;
bryantaylor 0:eafc3fd41f75 358
bryantaylor 0:eafc3fd41f75 359 if( output > input && (size_t) ( output - input ) < length )
bryantaylor 0:eafc3fd41f75 360 return( MBEDTLS_ERR_GCM_BAD_INPUT );
bryantaylor 0:eafc3fd41f75 361
bryantaylor 0:eafc3fd41f75 362 /* Total length is restricted to 2^39 - 256 bits, ie 2^36 - 2^5 bytes
bryantaylor 0:eafc3fd41f75 363 * Also check for possible overflow */
bryantaylor 0:eafc3fd41f75 364 if( ctx->len + length < ctx->len ||
bryantaylor 0:eafc3fd41f75 365 (uint64_t) ctx->len + length > 0xFFFFFFFE0ull )
bryantaylor 0:eafc3fd41f75 366 {
bryantaylor 0:eafc3fd41f75 367 return( MBEDTLS_ERR_GCM_BAD_INPUT );
bryantaylor 0:eafc3fd41f75 368 }
bryantaylor 0:eafc3fd41f75 369
bryantaylor 0:eafc3fd41f75 370 ctx->len += length;
bryantaylor 0:eafc3fd41f75 371
bryantaylor 0:eafc3fd41f75 372 p = input;
bryantaylor 0:eafc3fd41f75 373 while( length > 0 )
bryantaylor 0:eafc3fd41f75 374 {
bryantaylor 0:eafc3fd41f75 375 use_len = ( length < 16 ) ? length : 16;
bryantaylor 0:eafc3fd41f75 376
bryantaylor 0:eafc3fd41f75 377 for( i = 16; i > 12; i-- )
bryantaylor 0:eafc3fd41f75 378 if( ++ctx->y[i - 1] != 0 )
bryantaylor 0:eafc3fd41f75 379 break;
bryantaylor 0:eafc3fd41f75 380
bryantaylor 0:eafc3fd41f75 381 if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, ctx->y, 16, ectr,
bryantaylor 0:eafc3fd41f75 382 &olen ) ) != 0 )
bryantaylor 0:eafc3fd41f75 383 {
bryantaylor 0:eafc3fd41f75 384 return( ret );
bryantaylor 0:eafc3fd41f75 385 }
bryantaylor 0:eafc3fd41f75 386
bryantaylor 0:eafc3fd41f75 387 for( i = 0; i < use_len; i++ )
bryantaylor 0:eafc3fd41f75 388 {
bryantaylor 0:eafc3fd41f75 389 if( ctx->mode == MBEDTLS_GCM_DECRYPT )
bryantaylor 0:eafc3fd41f75 390 ctx->buf[i] ^= p[i];
bryantaylor 0:eafc3fd41f75 391 out_p[i] = ectr[i] ^ p[i];
bryantaylor 0:eafc3fd41f75 392 if( ctx->mode == MBEDTLS_GCM_ENCRYPT )
bryantaylor 0:eafc3fd41f75 393 ctx->buf[i] ^= out_p[i];
bryantaylor 0:eafc3fd41f75 394 }
bryantaylor 0:eafc3fd41f75 395
bryantaylor 0:eafc3fd41f75 396 gcm_mult( ctx, ctx->buf, ctx->buf );
bryantaylor 0:eafc3fd41f75 397
bryantaylor 0:eafc3fd41f75 398 length -= use_len;
bryantaylor 0:eafc3fd41f75 399 p += use_len;
bryantaylor 0:eafc3fd41f75 400 out_p += use_len;
bryantaylor 0:eafc3fd41f75 401 }
bryantaylor 0:eafc3fd41f75 402
bryantaylor 0:eafc3fd41f75 403 return( 0 );
bryantaylor 0:eafc3fd41f75 404 }
bryantaylor 0:eafc3fd41f75 405
bryantaylor 0:eafc3fd41f75 406 int mbedtls_gcm_finish( mbedtls_gcm_context *ctx,
bryantaylor 0:eafc3fd41f75 407 unsigned char *tag,
bryantaylor 0:eafc3fd41f75 408 size_t tag_len )
bryantaylor 0:eafc3fd41f75 409 {
bryantaylor 0:eafc3fd41f75 410 unsigned char work_buf[16];
bryantaylor 0:eafc3fd41f75 411 size_t i;
bryantaylor 0:eafc3fd41f75 412 uint64_t orig_len = ctx->len * 8;
bryantaylor 0:eafc3fd41f75 413 uint64_t orig_add_len = ctx->add_len * 8;
bryantaylor 0:eafc3fd41f75 414
bryantaylor 0:eafc3fd41f75 415 if( tag_len > 16 || tag_len < 4 )
bryantaylor 0:eafc3fd41f75 416 return( MBEDTLS_ERR_GCM_BAD_INPUT );
bryantaylor 0:eafc3fd41f75 417
bryantaylor 0:eafc3fd41f75 418 if( tag_len != 0 )
bryantaylor 0:eafc3fd41f75 419 memcpy( tag, ctx->base_ectr, tag_len );
bryantaylor 0:eafc3fd41f75 420
bryantaylor 0:eafc3fd41f75 421 if( orig_len || orig_add_len )
bryantaylor 0:eafc3fd41f75 422 {
bryantaylor 0:eafc3fd41f75 423 memset( work_buf, 0x00, 16 );
bryantaylor 0:eafc3fd41f75 424
bryantaylor 0:eafc3fd41f75 425 PUT_UINT32_BE( ( orig_add_len >> 32 ), work_buf, 0 );
bryantaylor 0:eafc3fd41f75 426 PUT_UINT32_BE( ( orig_add_len ), work_buf, 4 );
bryantaylor 0:eafc3fd41f75 427 PUT_UINT32_BE( ( orig_len >> 32 ), work_buf, 8 );
bryantaylor 0:eafc3fd41f75 428 PUT_UINT32_BE( ( orig_len ), work_buf, 12 );
bryantaylor 0:eafc3fd41f75 429
bryantaylor 0:eafc3fd41f75 430 for( i = 0; i < 16; i++ )
bryantaylor 0:eafc3fd41f75 431 ctx->buf[i] ^= work_buf[i];
bryantaylor 0:eafc3fd41f75 432
bryantaylor 0:eafc3fd41f75 433 gcm_mult( ctx, ctx->buf, ctx->buf );
bryantaylor 0:eafc3fd41f75 434
bryantaylor 0:eafc3fd41f75 435 for( i = 0; i < tag_len; i++ )
bryantaylor 0:eafc3fd41f75 436 tag[i] ^= ctx->buf[i];
bryantaylor 0:eafc3fd41f75 437 }
bryantaylor 0:eafc3fd41f75 438
bryantaylor 0:eafc3fd41f75 439 return( 0 );
bryantaylor 0:eafc3fd41f75 440 }
bryantaylor 0:eafc3fd41f75 441
bryantaylor 0:eafc3fd41f75 442 int mbedtls_gcm_crypt_and_tag( mbedtls_gcm_context *ctx,
bryantaylor 0:eafc3fd41f75 443 int mode,
bryantaylor 0:eafc3fd41f75 444 size_t length,
bryantaylor 0:eafc3fd41f75 445 const unsigned char *iv,
bryantaylor 0:eafc3fd41f75 446 size_t iv_len,
bryantaylor 0:eafc3fd41f75 447 const unsigned char *add,
bryantaylor 0:eafc3fd41f75 448 size_t add_len,
bryantaylor 0:eafc3fd41f75 449 const unsigned char *input,
bryantaylor 0:eafc3fd41f75 450 unsigned char *output,
bryantaylor 0:eafc3fd41f75 451 size_t tag_len,
bryantaylor 0:eafc3fd41f75 452 unsigned char *tag )
bryantaylor 0:eafc3fd41f75 453 {
bryantaylor 0:eafc3fd41f75 454 int ret;
bryantaylor 0:eafc3fd41f75 455
bryantaylor 0:eafc3fd41f75 456 if( ( ret = mbedtls_gcm_starts( ctx, mode, iv, iv_len, add, add_len ) ) != 0 )
bryantaylor 0:eafc3fd41f75 457 return( ret );
bryantaylor 0:eafc3fd41f75 458
bryantaylor 0:eafc3fd41f75 459 if( ( ret = mbedtls_gcm_update( ctx, length, input, output ) ) != 0 )
bryantaylor 0:eafc3fd41f75 460 return( ret );
bryantaylor 0:eafc3fd41f75 461
bryantaylor 0:eafc3fd41f75 462 if( ( ret = mbedtls_gcm_finish( ctx, tag, tag_len ) ) != 0 )
bryantaylor 0:eafc3fd41f75 463 return( ret );
bryantaylor 0:eafc3fd41f75 464
bryantaylor 0:eafc3fd41f75 465 return( 0 );
bryantaylor 0:eafc3fd41f75 466 }
bryantaylor 0:eafc3fd41f75 467
bryantaylor 0:eafc3fd41f75 468 int mbedtls_gcm_auth_decrypt( mbedtls_gcm_context *ctx,
bryantaylor 0:eafc3fd41f75 469 size_t length,
bryantaylor 0:eafc3fd41f75 470 const unsigned char *iv,
bryantaylor 0:eafc3fd41f75 471 size_t iv_len,
bryantaylor 0:eafc3fd41f75 472 const unsigned char *add,
bryantaylor 0:eafc3fd41f75 473 size_t add_len,
bryantaylor 0:eafc3fd41f75 474 const unsigned char *tag,
bryantaylor 0:eafc3fd41f75 475 size_t tag_len,
bryantaylor 0:eafc3fd41f75 476 const unsigned char *input,
bryantaylor 0:eafc3fd41f75 477 unsigned char *output )
bryantaylor 0:eafc3fd41f75 478 {
bryantaylor 0:eafc3fd41f75 479 int ret;
bryantaylor 0:eafc3fd41f75 480 unsigned char check_tag[16];
bryantaylor 0:eafc3fd41f75 481 size_t i;
bryantaylor 0:eafc3fd41f75 482 int diff;
bryantaylor 0:eafc3fd41f75 483
bryantaylor 0:eafc3fd41f75 484 if( ( ret = mbedtls_gcm_crypt_and_tag( ctx, MBEDTLS_GCM_DECRYPT, length,
bryantaylor 0:eafc3fd41f75 485 iv, iv_len, add, add_len,
bryantaylor 0:eafc3fd41f75 486 input, output, tag_len, check_tag ) ) != 0 )
bryantaylor 0:eafc3fd41f75 487 {
bryantaylor 0:eafc3fd41f75 488 return( ret );
bryantaylor 0:eafc3fd41f75 489 }
bryantaylor 0:eafc3fd41f75 490
bryantaylor 0:eafc3fd41f75 491 /* Check tag in "constant-time" */
bryantaylor 0:eafc3fd41f75 492 for( diff = 0, i = 0; i < tag_len; i++ )
bryantaylor 0:eafc3fd41f75 493 diff |= tag[i] ^ check_tag[i];
bryantaylor 0:eafc3fd41f75 494
bryantaylor 0:eafc3fd41f75 495 if( diff != 0 )
bryantaylor 0:eafc3fd41f75 496 {
bryantaylor 0:eafc3fd41f75 497 mbedtls_zeroize( output, length );
bryantaylor 0:eafc3fd41f75 498 return( MBEDTLS_ERR_GCM_AUTH_FAILED );
bryantaylor 0:eafc3fd41f75 499 }
bryantaylor 0:eafc3fd41f75 500
bryantaylor 0:eafc3fd41f75 501 return( 0 );
bryantaylor 0:eafc3fd41f75 502 }
bryantaylor 0:eafc3fd41f75 503
bryantaylor 0:eafc3fd41f75 504 void mbedtls_gcm_free( mbedtls_gcm_context *ctx )
bryantaylor 0:eafc3fd41f75 505 {
bryantaylor 0:eafc3fd41f75 506 mbedtls_cipher_free( &ctx->cipher_ctx );
bryantaylor 0:eafc3fd41f75 507 mbedtls_zeroize( ctx, sizeof( mbedtls_gcm_context ) );
bryantaylor 0:eafc3fd41f75 508 }
bryantaylor 0:eafc3fd41f75 509
bryantaylor 0:eafc3fd41f75 510 #if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
bryantaylor 0:eafc3fd41f75 511 /*
bryantaylor 0:eafc3fd41f75 512 * AES-GCM test vectors from:
bryantaylor 0:eafc3fd41f75 513 *
bryantaylor 0:eafc3fd41f75 514 * http://csrc.nist.gov/groups/STM/cavp/documents/mac/gcmtestvectors.zip
bryantaylor 0:eafc3fd41f75 515 */
bryantaylor 0:eafc3fd41f75 516 #define MAX_TESTS 6
bryantaylor 0:eafc3fd41f75 517
bryantaylor 0:eafc3fd41f75 518 static const int key_index[MAX_TESTS] =
bryantaylor 0:eafc3fd41f75 519 { 0, 0, 1, 1, 1, 1 };
bryantaylor 0:eafc3fd41f75 520
bryantaylor 0:eafc3fd41f75 521 static const unsigned char key[MAX_TESTS][32] =
bryantaylor 0:eafc3fd41f75 522 {
bryantaylor 0:eafc3fd41f75 523 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
bryantaylor 0:eafc3fd41f75 524 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
bryantaylor 0:eafc3fd41f75 525 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
bryantaylor 0:eafc3fd41f75 526 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
bryantaylor 0:eafc3fd41f75 527 { 0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,
bryantaylor 0:eafc3fd41f75 528 0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08,
bryantaylor 0:eafc3fd41f75 529 0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,
bryantaylor 0:eafc3fd41f75 530 0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08 },
bryantaylor 0:eafc3fd41f75 531 };
bryantaylor 0:eafc3fd41f75 532
bryantaylor 0:eafc3fd41f75 533 static const size_t iv_len[MAX_TESTS] =
bryantaylor 0:eafc3fd41f75 534 { 12, 12, 12, 12, 8, 60 };
bryantaylor 0:eafc3fd41f75 535
bryantaylor 0:eafc3fd41f75 536 static const int iv_index[MAX_TESTS] =
bryantaylor 0:eafc3fd41f75 537 { 0, 0, 1, 1, 1, 2 };
bryantaylor 0:eafc3fd41f75 538
bryantaylor 0:eafc3fd41f75 539 static const unsigned char iv[MAX_TESTS][64] =
bryantaylor 0:eafc3fd41f75 540 {
bryantaylor 0:eafc3fd41f75 541 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
bryantaylor 0:eafc3fd41f75 542 0x00, 0x00, 0x00, 0x00 },
bryantaylor 0:eafc3fd41f75 543 { 0xca, 0xfe, 0xba, 0xbe, 0xfa, 0xce, 0xdb, 0xad,
bryantaylor 0:eafc3fd41f75 544 0xde, 0xca, 0xf8, 0x88 },
bryantaylor 0:eafc3fd41f75 545 { 0x93, 0x13, 0x22, 0x5d, 0xf8, 0x84, 0x06, 0xe5,
bryantaylor 0:eafc3fd41f75 546 0x55, 0x90, 0x9c, 0x5a, 0xff, 0x52, 0x69, 0xaa,
bryantaylor 0:eafc3fd41f75 547 0x6a, 0x7a, 0x95, 0x38, 0x53, 0x4f, 0x7d, 0xa1,
bryantaylor 0:eafc3fd41f75 548 0xe4, 0xc3, 0x03, 0xd2, 0xa3, 0x18, 0xa7, 0x28,
bryantaylor 0:eafc3fd41f75 549 0xc3, 0xc0, 0xc9, 0x51, 0x56, 0x80, 0x95, 0x39,
bryantaylor 0:eafc3fd41f75 550 0xfc, 0xf0, 0xe2, 0x42, 0x9a, 0x6b, 0x52, 0x54,
bryantaylor 0:eafc3fd41f75 551 0x16, 0xae, 0xdb, 0xf5, 0xa0, 0xde, 0x6a, 0x57,
bryantaylor 0:eafc3fd41f75 552 0xa6, 0x37, 0xb3, 0x9b },
bryantaylor 0:eafc3fd41f75 553 };
bryantaylor 0:eafc3fd41f75 554
bryantaylor 0:eafc3fd41f75 555 static const size_t add_len[MAX_TESTS] =
bryantaylor 0:eafc3fd41f75 556 { 0, 0, 0, 20, 20, 20 };
bryantaylor 0:eafc3fd41f75 557
bryantaylor 0:eafc3fd41f75 558 static const int add_index[MAX_TESTS] =
bryantaylor 0:eafc3fd41f75 559 { 0, 0, 0, 1, 1, 1 };
bryantaylor 0:eafc3fd41f75 560
bryantaylor 0:eafc3fd41f75 561 static const unsigned char additional[MAX_TESTS][64] =
bryantaylor 0:eafc3fd41f75 562 {
bryantaylor 0:eafc3fd41f75 563 { 0x00 },
bryantaylor 0:eafc3fd41f75 564 { 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,
bryantaylor 0:eafc3fd41f75 565 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,
bryantaylor 0:eafc3fd41f75 566 0xab, 0xad, 0xda, 0xd2 },
bryantaylor 0:eafc3fd41f75 567 };
bryantaylor 0:eafc3fd41f75 568
bryantaylor 0:eafc3fd41f75 569 static const size_t pt_len[MAX_TESTS] =
bryantaylor 0:eafc3fd41f75 570 { 0, 16, 64, 60, 60, 60 };
bryantaylor 0:eafc3fd41f75 571
bryantaylor 0:eafc3fd41f75 572 static const int pt_index[MAX_TESTS] =
bryantaylor 0:eafc3fd41f75 573 { 0, 0, 1, 1, 1, 1 };
bryantaylor 0:eafc3fd41f75 574
bryantaylor 0:eafc3fd41f75 575 static const unsigned char pt[MAX_TESTS][64] =
bryantaylor 0:eafc3fd41f75 576 {
bryantaylor 0:eafc3fd41f75 577 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
bryantaylor 0:eafc3fd41f75 578 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
bryantaylor 0:eafc3fd41f75 579 { 0xd9, 0x31, 0x32, 0x25, 0xf8, 0x84, 0x06, 0xe5,
bryantaylor 0:eafc3fd41f75 580 0xa5, 0x59, 0x09, 0xc5, 0xaf, 0xf5, 0x26, 0x9a,
bryantaylor 0:eafc3fd41f75 581 0x86, 0xa7, 0xa9, 0x53, 0x15, 0x34, 0xf7, 0xda,
bryantaylor 0:eafc3fd41f75 582 0x2e, 0x4c, 0x30, 0x3d, 0x8a, 0x31, 0x8a, 0x72,
bryantaylor 0:eafc3fd41f75 583 0x1c, 0x3c, 0x0c, 0x95, 0x95, 0x68, 0x09, 0x53,
bryantaylor 0:eafc3fd41f75 584 0x2f, 0xcf, 0x0e, 0x24, 0x49, 0xa6, 0xb5, 0x25,
bryantaylor 0:eafc3fd41f75 585 0xb1, 0x6a, 0xed, 0xf5, 0xaa, 0x0d, 0xe6, 0x57,
bryantaylor 0:eafc3fd41f75 586 0xba, 0x63, 0x7b, 0x39, 0x1a, 0xaf, 0xd2, 0x55 },
bryantaylor 0:eafc3fd41f75 587 };
bryantaylor 0:eafc3fd41f75 588
bryantaylor 0:eafc3fd41f75 589 static const unsigned char ct[MAX_TESTS * 3][64] =
bryantaylor 0:eafc3fd41f75 590 {
bryantaylor 0:eafc3fd41f75 591 { 0x00 },
bryantaylor 0:eafc3fd41f75 592 { 0x03, 0x88, 0xda, 0xce, 0x60, 0xb6, 0xa3, 0x92,
bryantaylor 0:eafc3fd41f75 593 0xf3, 0x28, 0xc2, 0xb9, 0x71, 0xb2, 0xfe, 0x78 },
bryantaylor 0:eafc3fd41f75 594 { 0x42, 0x83, 0x1e, 0xc2, 0x21, 0x77, 0x74, 0x24,
bryantaylor 0:eafc3fd41f75 595 0x4b, 0x72, 0x21, 0xb7, 0x84, 0xd0, 0xd4, 0x9c,
bryantaylor 0:eafc3fd41f75 596 0xe3, 0xaa, 0x21, 0x2f, 0x2c, 0x02, 0xa4, 0xe0,
bryantaylor 0:eafc3fd41f75 597 0x35, 0xc1, 0x7e, 0x23, 0x29, 0xac, 0xa1, 0x2e,
bryantaylor 0:eafc3fd41f75 598 0x21, 0xd5, 0x14, 0xb2, 0x54, 0x66, 0x93, 0x1c,
bryantaylor 0:eafc3fd41f75 599 0x7d, 0x8f, 0x6a, 0x5a, 0xac, 0x84, 0xaa, 0x05,
bryantaylor 0:eafc3fd41f75 600 0x1b, 0xa3, 0x0b, 0x39, 0x6a, 0x0a, 0xac, 0x97,
bryantaylor 0:eafc3fd41f75 601 0x3d, 0x58, 0xe0, 0x91, 0x47, 0x3f, 0x59, 0x85 },
bryantaylor 0:eafc3fd41f75 602 { 0x42, 0x83, 0x1e, 0xc2, 0x21, 0x77, 0x74, 0x24,
bryantaylor 0:eafc3fd41f75 603 0x4b, 0x72, 0x21, 0xb7, 0x84, 0xd0, 0xd4, 0x9c,
bryantaylor 0:eafc3fd41f75 604 0xe3, 0xaa, 0x21, 0x2f, 0x2c, 0x02, 0xa4, 0xe0,
bryantaylor 0:eafc3fd41f75 605 0x35, 0xc1, 0x7e, 0x23, 0x29, 0xac, 0xa1, 0x2e,
bryantaylor 0:eafc3fd41f75 606 0x21, 0xd5, 0x14, 0xb2, 0x54, 0x66, 0x93, 0x1c,
bryantaylor 0:eafc3fd41f75 607 0x7d, 0x8f, 0x6a, 0x5a, 0xac, 0x84, 0xaa, 0x05,
bryantaylor 0:eafc3fd41f75 608 0x1b, 0xa3, 0x0b, 0x39, 0x6a, 0x0a, 0xac, 0x97,
bryantaylor 0:eafc3fd41f75 609 0x3d, 0x58, 0xe0, 0x91 },
bryantaylor 0:eafc3fd41f75 610 { 0x61, 0x35, 0x3b, 0x4c, 0x28, 0x06, 0x93, 0x4a,
bryantaylor 0:eafc3fd41f75 611 0x77, 0x7f, 0xf5, 0x1f, 0xa2, 0x2a, 0x47, 0x55,
bryantaylor 0:eafc3fd41f75 612 0x69, 0x9b, 0x2a, 0x71, 0x4f, 0xcd, 0xc6, 0xf8,
bryantaylor 0:eafc3fd41f75 613 0x37, 0x66, 0xe5, 0xf9, 0x7b, 0x6c, 0x74, 0x23,
bryantaylor 0:eafc3fd41f75 614 0x73, 0x80, 0x69, 0x00, 0xe4, 0x9f, 0x24, 0xb2,
bryantaylor 0:eafc3fd41f75 615 0x2b, 0x09, 0x75, 0x44, 0xd4, 0x89, 0x6b, 0x42,
bryantaylor 0:eafc3fd41f75 616 0x49, 0x89, 0xb5, 0xe1, 0xeb, 0xac, 0x0f, 0x07,
bryantaylor 0:eafc3fd41f75 617 0xc2, 0x3f, 0x45, 0x98 },
bryantaylor 0:eafc3fd41f75 618 { 0x8c, 0xe2, 0x49, 0x98, 0x62, 0x56, 0x15, 0xb6,
bryantaylor 0:eafc3fd41f75 619 0x03, 0xa0, 0x33, 0xac, 0xa1, 0x3f, 0xb8, 0x94,
bryantaylor 0:eafc3fd41f75 620 0xbe, 0x91, 0x12, 0xa5, 0xc3, 0xa2, 0x11, 0xa8,
bryantaylor 0:eafc3fd41f75 621 0xba, 0x26, 0x2a, 0x3c, 0xca, 0x7e, 0x2c, 0xa7,
bryantaylor 0:eafc3fd41f75 622 0x01, 0xe4, 0xa9, 0xa4, 0xfb, 0xa4, 0x3c, 0x90,
bryantaylor 0:eafc3fd41f75 623 0xcc, 0xdc, 0xb2, 0x81, 0xd4, 0x8c, 0x7c, 0x6f,
bryantaylor 0:eafc3fd41f75 624 0xd6, 0x28, 0x75, 0xd2, 0xac, 0xa4, 0x17, 0x03,
bryantaylor 0:eafc3fd41f75 625 0x4c, 0x34, 0xae, 0xe5 },
bryantaylor 0:eafc3fd41f75 626 { 0x00 },
bryantaylor 0:eafc3fd41f75 627 { 0x98, 0xe7, 0x24, 0x7c, 0x07, 0xf0, 0xfe, 0x41,
bryantaylor 0:eafc3fd41f75 628 0x1c, 0x26, 0x7e, 0x43, 0x84, 0xb0, 0xf6, 0x00 },
bryantaylor 0:eafc3fd41f75 629 { 0x39, 0x80, 0xca, 0x0b, 0x3c, 0x00, 0xe8, 0x41,
bryantaylor 0:eafc3fd41f75 630 0xeb, 0x06, 0xfa, 0xc4, 0x87, 0x2a, 0x27, 0x57,
bryantaylor 0:eafc3fd41f75 631 0x85, 0x9e, 0x1c, 0xea, 0xa6, 0xef, 0xd9, 0x84,
bryantaylor 0:eafc3fd41f75 632 0x62, 0x85, 0x93, 0xb4, 0x0c, 0xa1, 0xe1, 0x9c,
bryantaylor 0:eafc3fd41f75 633 0x7d, 0x77, 0x3d, 0x00, 0xc1, 0x44, 0xc5, 0x25,
bryantaylor 0:eafc3fd41f75 634 0xac, 0x61, 0x9d, 0x18, 0xc8, 0x4a, 0x3f, 0x47,
bryantaylor 0:eafc3fd41f75 635 0x18, 0xe2, 0x44, 0x8b, 0x2f, 0xe3, 0x24, 0xd9,
bryantaylor 0:eafc3fd41f75 636 0xcc, 0xda, 0x27, 0x10, 0xac, 0xad, 0xe2, 0x56 },
bryantaylor 0:eafc3fd41f75 637 { 0x39, 0x80, 0xca, 0x0b, 0x3c, 0x00, 0xe8, 0x41,
bryantaylor 0:eafc3fd41f75 638 0xeb, 0x06, 0xfa, 0xc4, 0x87, 0x2a, 0x27, 0x57,
bryantaylor 0:eafc3fd41f75 639 0x85, 0x9e, 0x1c, 0xea, 0xa6, 0xef, 0xd9, 0x84,
bryantaylor 0:eafc3fd41f75 640 0x62, 0x85, 0x93, 0xb4, 0x0c, 0xa1, 0xe1, 0x9c,
bryantaylor 0:eafc3fd41f75 641 0x7d, 0x77, 0x3d, 0x00, 0xc1, 0x44, 0xc5, 0x25,
bryantaylor 0:eafc3fd41f75 642 0xac, 0x61, 0x9d, 0x18, 0xc8, 0x4a, 0x3f, 0x47,
bryantaylor 0:eafc3fd41f75 643 0x18, 0xe2, 0x44, 0x8b, 0x2f, 0xe3, 0x24, 0xd9,
bryantaylor 0:eafc3fd41f75 644 0xcc, 0xda, 0x27, 0x10 },
bryantaylor 0:eafc3fd41f75 645 { 0x0f, 0x10, 0xf5, 0x99, 0xae, 0x14, 0xa1, 0x54,
bryantaylor 0:eafc3fd41f75 646 0xed, 0x24, 0xb3, 0x6e, 0x25, 0x32, 0x4d, 0xb8,
bryantaylor 0:eafc3fd41f75 647 0xc5, 0x66, 0x63, 0x2e, 0xf2, 0xbb, 0xb3, 0x4f,
bryantaylor 0:eafc3fd41f75 648 0x83, 0x47, 0x28, 0x0f, 0xc4, 0x50, 0x70, 0x57,
bryantaylor 0:eafc3fd41f75 649 0xfd, 0xdc, 0x29, 0xdf, 0x9a, 0x47, 0x1f, 0x75,
bryantaylor 0:eafc3fd41f75 650 0xc6, 0x65, 0x41, 0xd4, 0xd4, 0xda, 0xd1, 0xc9,
bryantaylor 0:eafc3fd41f75 651 0xe9, 0x3a, 0x19, 0xa5, 0x8e, 0x8b, 0x47, 0x3f,
bryantaylor 0:eafc3fd41f75 652 0xa0, 0xf0, 0x62, 0xf7 },
bryantaylor 0:eafc3fd41f75 653 { 0xd2, 0x7e, 0x88, 0x68, 0x1c, 0xe3, 0x24, 0x3c,
bryantaylor 0:eafc3fd41f75 654 0x48, 0x30, 0x16, 0x5a, 0x8f, 0xdc, 0xf9, 0xff,
bryantaylor 0:eafc3fd41f75 655 0x1d, 0xe9, 0xa1, 0xd8, 0xe6, 0xb4, 0x47, 0xef,
bryantaylor 0:eafc3fd41f75 656 0x6e, 0xf7, 0xb7, 0x98, 0x28, 0x66, 0x6e, 0x45,
bryantaylor 0:eafc3fd41f75 657 0x81, 0xe7, 0x90, 0x12, 0xaf, 0x34, 0xdd, 0xd9,
bryantaylor 0:eafc3fd41f75 658 0xe2, 0xf0, 0x37, 0x58, 0x9b, 0x29, 0x2d, 0xb3,
bryantaylor 0:eafc3fd41f75 659 0xe6, 0x7c, 0x03, 0x67, 0x45, 0xfa, 0x22, 0xe7,
bryantaylor 0:eafc3fd41f75 660 0xe9, 0xb7, 0x37, 0x3b },
bryantaylor 0:eafc3fd41f75 661 { 0x00 },
bryantaylor 0:eafc3fd41f75 662 { 0xce, 0xa7, 0x40, 0x3d, 0x4d, 0x60, 0x6b, 0x6e,
bryantaylor 0:eafc3fd41f75 663 0x07, 0x4e, 0xc5, 0xd3, 0xba, 0xf3, 0x9d, 0x18 },
bryantaylor 0:eafc3fd41f75 664 { 0x52, 0x2d, 0xc1, 0xf0, 0x99, 0x56, 0x7d, 0x07,
bryantaylor 0:eafc3fd41f75 665 0xf4, 0x7f, 0x37, 0xa3, 0x2a, 0x84, 0x42, 0x7d,
bryantaylor 0:eafc3fd41f75 666 0x64, 0x3a, 0x8c, 0xdc, 0xbf, 0xe5, 0xc0, 0xc9,
bryantaylor 0:eafc3fd41f75 667 0x75, 0x98, 0xa2, 0xbd, 0x25, 0x55, 0xd1, 0xaa,
bryantaylor 0:eafc3fd41f75 668 0x8c, 0xb0, 0x8e, 0x48, 0x59, 0x0d, 0xbb, 0x3d,
bryantaylor 0:eafc3fd41f75 669 0xa7, 0xb0, 0x8b, 0x10, 0x56, 0x82, 0x88, 0x38,
bryantaylor 0:eafc3fd41f75 670 0xc5, 0xf6, 0x1e, 0x63, 0x93, 0xba, 0x7a, 0x0a,
bryantaylor 0:eafc3fd41f75 671 0xbc, 0xc9, 0xf6, 0x62, 0x89, 0x80, 0x15, 0xad },
bryantaylor 0:eafc3fd41f75 672 { 0x52, 0x2d, 0xc1, 0xf0, 0x99, 0x56, 0x7d, 0x07,
bryantaylor 0:eafc3fd41f75 673 0xf4, 0x7f, 0x37, 0xa3, 0x2a, 0x84, 0x42, 0x7d,
bryantaylor 0:eafc3fd41f75 674 0x64, 0x3a, 0x8c, 0xdc, 0xbf, 0xe5, 0xc0, 0xc9,
bryantaylor 0:eafc3fd41f75 675 0x75, 0x98, 0xa2, 0xbd, 0x25, 0x55, 0xd1, 0xaa,
bryantaylor 0:eafc3fd41f75 676 0x8c, 0xb0, 0x8e, 0x48, 0x59, 0x0d, 0xbb, 0x3d,
bryantaylor 0:eafc3fd41f75 677 0xa7, 0xb0, 0x8b, 0x10, 0x56, 0x82, 0x88, 0x38,
bryantaylor 0:eafc3fd41f75 678 0xc5, 0xf6, 0x1e, 0x63, 0x93, 0xba, 0x7a, 0x0a,
bryantaylor 0:eafc3fd41f75 679 0xbc, 0xc9, 0xf6, 0x62 },
bryantaylor 0:eafc3fd41f75 680 { 0xc3, 0x76, 0x2d, 0xf1, 0xca, 0x78, 0x7d, 0x32,
bryantaylor 0:eafc3fd41f75 681 0xae, 0x47, 0xc1, 0x3b, 0xf1, 0x98, 0x44, 0xcb,
bryantaylor 0:eafc3fd41f75 682 0xaf, 0x1a, 0xe1, 0x4d, 0x0b, 0x97, 0x6a, 0xfa,
bryantaylor 0:eafc3fd41f75 683 0xc5, 0x2f, 0xf7, 0xd7, 0x9b, 0xba, 0x9d, 0xe0,
bryantaylor 0:eafc3fd41f75 684 0xfe, 0xb5, 0x82, 0xd3, 0x39, 0x34, 0xa4, 0xf0,
bryantaylor 0:eafc3fd41f75 685 0x95, 0x4c, 0xc2, 0x36, 0x3b, 0xc7, 0x3f, 0x78,
bryantaylor 0:eafc3fd41f75 686 0x62, 0xac, 0x43, 0x0e, 0x64, 0xab, 0xe4, 0x99,
bryantaylor 0:eafc3fd41f75 687 0xf4, 0x7c, 0x9b, 0x1f },
bryantaylor 0:eafc3fd41f75 688 { 0x5a, 0x8d, 0xef, 0x2f, 0x0c, 0x9e, 0x53, 0xf1,
bryantaylor 0:eafc3fd41f75 689 0xf7, 0x5d, 0x78, 0x53, 0x65, 0x9e, 0x2a, 0x20,
bryantaylor 0:eafc3fd41f75 690 0xee, 0xb2, 0xb2, 0x2a, 0xaf, 0xde, 0x64, 0x19,
bryantaylor 0:eafc3fd41f75 691 0xa0, 0x58, 0xab, 0x4f, 0x6f, 0x74, 0x6b, 0xf4,
bryantaylor 0:eafc3fd41f75 692 0x0f, 0xc0, 0xc3, 0xb7, 0x80, 0xf2, 0x44, 0x45,
bryantaylor 0:eafc3fd41f75 693 0x2d, 0xa3, 0xeb, 0xf1, 0xc5, 0xd8, 0x2c, 0xde,
bryantaylor 0:eafc3fd41f75 694 0xa2, 0x41, 0x89, 0x97, 0x20, 0x0e, 0xf8, 0x2e,
bryantaylor 0:eafc3fd41f75 695 0x44, 0xae, 0x7e, 0x3f },
bryantaylor 0:eafc3fd41f75 696 };
bryantaylor 0:eafc3fd41f75 697
bryantaylor 0:eafc3fd41f75 698 static const unsigned char tag[MAX_TESTS * 3][16] =
bryantaylor 0:eafc3fd41f75 699 {
bryantaylor 0:eafc3fd41f75 700 { 0x58, 0xe2, 0xfc, 0xce, 0xfa, 0x7e, 0x30, 0x61,
bryantaylor 0:eafc3fd41f75 701 0x36, 0x7f, 0x1d, 0x57, 0xa4, 0xe7, 0x45, 0x5a },
bryantaylor 0:eafc3fd41f75 702 { 0xab, 0x6e, 0x47, 0xd4, 0x2c, 0xec, 0x13, 0xbd,
bryantaylor 0:eafc3fd41f75 703 0xf5, 0x3a, 0x67, 0xb2, 0x12, 0x57, 0xbd, 0xdf },
bryantaylor 0:eafc3fd41f75 704 { 0x4d, 0x5c, 0x2a, 0xf3, 0x27, 0xcd, 0x64, 0xa6,
bryantaylor 0:eafc3fd41f75 705 0x2c, 0xf3, 0x5a, 0xbd, 0x2b, 0xa6, 0xfa, 0xb4 },
bryantaylor 0:eafc3fd41f75 706 { 0x5b, 0xc9, 0x4f, 0xbc, 0x32, 0x21, 0xa5, 0xdb,
bryantaylor 0:eafc3fd41f75 707 0x94, 0xfa, 0xe9, 0x5a, 0xe7, 0x12, 0x1a, 0x47 },
bryantaylor 0:eafc3fd41f75 708 { 0x36, 0x12, 0xd2, 0xe7, 0x9e, 0x3b, 0x07, 0x85,
bryantaylor 0:eafc3fd41f75 709 0x56, 0x1b, 0xe1, 0x4a, 0xac, 0xa2, 0xfc, 0xcb },
bryantaylor 0:eafc3fd41f75 710 { 0x61, 0x9c, 0xc5, 0xae, 0xff, 0xfe, 0x0b, 0xfa,
bryantaylor 0:eafc3fd41f75 711 0x46, 0x2a, 0xf4, 0x3c, 0x16, 0x99, 0xd0, 0x50 },
bryantaylor 0:eafc3fd41f75 712 { 0xcd, 0x33, 0xb2, 0x8a, 0xc7, 0x73, 0xf7, 0x4b,
bryantaylor 0:eafc3fd41f75 713 0xa0, 0x0e, 0xd1, 0xf3, 0x12, 0x57, 0x24, 0x35 },
bryantaylor 0:eafc3fd41f75 714 { 0x2f, 0xf5, 0x8d, 0x80, 0x03, 0x39, 0x27, 0xab,
bryantaylor 0:eafc3fd41f75 715 0x8e, 0xf4, 0xd4, 0x58, 0x75, 0x14, 0xf0, 0xfb },
bryantaylor 0:eafc3fd41f75 716 { 0x99, 0x24, 0xa7, 0xc8, 0x58, 0x73, 0x36, 0xbf,
bryantaylor 0:eafc3fd41f75 717 0xb1, 0x18, 0x02, 0x4d, 0xb8, 0x67, 0x4a, 0x14 },
bryantaylor 0:eafc3fd41f75 718 { 0x25, 0x19, 0x49, 0x8e, 0x80, 0xf1, 0x47, 0x8f,
bryantaylor 0:eafc3fd41f75 719 0x37, 0xba, 0x55, 0xbd, 0x6d, 0x27, 0x61, 0x8c },
bryantaylor 0:eafc3fd41f75 720 { 0x65, 0xdc, 0xc5, 0x7f, 0xcf, 0x62, 0x3a, 0x24,
bryantaylor 0:eafc3fd41f75 721 0x09, 0x4f, 0xcc, 0xa4, 0x0d, 0x35, 0x33, 0xf8 },
bryantaylor 0:eafc3fd41f75 722 { 0xdc, 0xf5, 0x66, 0xff, 0x29, 0x1c, 0x25, 0xbb,
bryantaylor 0:eafc3fd41f75 723 0xb8, 0x56, 0x8f, 0xc3, 0xd3, 0x76, 0xa6, 0xd9 },
bryantaylor 0:eafc3fd41f75 724 { 0x53, 0x0f, 0x8a, 0xfb, 0xc7, 0x45, 0x36, 0xb9,
bryantaylor 0:eafc3fd41f75 725 0xa9, 0x63, 0xb4, 0xf1, 0xc4, 0xcb, 0x73, 0x8b },
bryantaylor 0:eafc3fd41f75 726 { 0xd0, 0xd1, 0xc8, 0xa7, 0x99, 0x99, 0x6b, 0xf0,
bryantaylor 0:eafc3fd41f75 727 0x26, 0x5b, 0x98, 0xb5, 0xd4, 0x8a, 0xb9, 0x19 },
bryantaylor 0:eafc3fd41f75 728 { 0xb0, 0x94, 0xda, 0xc5, 0xd9, 0x34, 0x71, 0xbd,
bryantaylor 0:eafc3fd41f75 729 0xec, 0x1a, 0x50, 0x22, 0x70, 0xe3, 0xcc, 0x6c },
bryantaylor 0:eafc3fd41f75 730 { 0x76, 0xfc, 0x6e, 0xce, 0x0f, 0x4e, 0x17, 0x68,
bryantaylor 0:eafc3fd41f75 731 0xcd, 0xdf, 0x88, 0x53, 0xbb, 0x2d, 0x55, 0x1b },
bryantaylor 0:eafc3fd41f75 732 { 0x3a, 0x33, 0x7d, 0xbf, 0x46, 0xa7, 0x92, 0xc4,
bryantaylor 0:eafc3fd41f75 733 0x5e, 0x45, 0x49, 0x13, 0xfe, 0x2e, 0xa8, 0xf2 },
bryantaylor 0:eafc3fd41f75 734 { 0xa4, 0x4a, 0x82, 0x66, 0xee, 0x1c, 0x8e, 0xb0,
bryantaylor 0:eafc3fd41f75 735 0xc8, 0xb5, 0xd4, 0xcf, 0x5a, 0xe9, 0xf1, 0x9a },
bryantaylor 0:eafc3fd41f75 736 };
bryantaylor 0:eafc3fd41f75 737
bryantaylor 0:eafc3fd41f75 738 int mbedtls_gcm_self_test( int verbose )
bryantaylor 0:eafc3fd41f75 739 {
bryantaylor 0:eafc3fd41f75 740 mbedtls_gcm_context ctx;
bryantaylor 0:eafc3fd41f75 741 unsigned char buf[64];
bryantaylor 0:eafc3fd41f75 742 unsigned char tag_buf[16];
bryantaylor 0:eafc3fd41f75 743 int i, j, ret;
bryantaylor 0:eafc3fd41f75 744 mbedtls_cipher_id_t cipher = MBEDTLS_CIPHER_ID_AES;
bryantaylor 0:eafc3fd41f75 745
bryantaylor 0:eafc3fd41f75 746 mbedtls_gcm_init( &ctx );
bryantaylor 0:eafc3fd41f75 747
bryantaylor 0:eafc3fd41f75 748 for( j = 0; j < 3; j++ )
bryantaylor 0:eafc3fd41f75 749 {
bryantaylor 0:eafc3fd41f75 750 int key_len = 128 + 64 * j;
bryantaylor 0:eafc3fd41f75 751
bryantaylor 0:eafc3fd41f75 752 for( i = 0; i < MAX_TESTS; i++ )
bryantaylor 0:eafc3fd41f75 753 {
bryantaylor 0:eafc3fd41f75 754 if( verbose != 0 )
bryantaylor 0:eafc3fd41f75 755 mbedtls_printf( " AES-GCM-%3d #%d (%s): ",
bryantaylor 0:eafc3fd41f75 756 key_len, i, "enc" );
bryantaylor 0:eafc3fd41f75 757
bryantaylor 0:eafc3fd41f75 758 mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]], key_len );
bryantaylor 0:eafc3fd41f75 759
bryantaylor 0:eafc3fd41f75 760 ret = mbedtls_gcm_crypt_and_tag( &ctx, MBEDTLS_GCM_ENCRYPT,
bryantaylor 0:eafc3fd41f75 761 pt_len[i],
bryantaylor 0:eafc3fd41f75 762 iv[iv_index[i]], iv_len[i],
bryantaylor 0:eafc3fd41f75 763 additional[add_index[i]], add_len[i],
bryantaylor 0:eafc3fd41f75 764 pt[pt_index[i]], buf, 16, tag_buf );
bryantaylor 0:eafc3fd41f75 765
bryantaylor 0:eafc3fd41f75 766 if( ret != 0 ||
bryantaylor 0:eafc3fd41f75 767 memcmp( buf, ct[j * 6 + i], pt_len[i] ) != 0 ||
bryantaylor 0:eafc3fd41f75 768 memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )
bryantaylor 0:eafc3fd41f75 769 {
bryantaylor 0:eafc3fd41f75 770 if( verbose != 0 )
bryantaylor 0:eafc3fd41f75 771 mbedtls_printf( "failed\n" );
bryantaylor 0:eafc3fd41f75 772
bryantaylor 0:eafc3fd41f75 773 return( 1 );
bryantaylor 0:eafc3fd41f75 774 }
bryantaylor 0:eafc3fd41f75 775
bryantaylor 0:eafc3fd41f75 776 mbedtls_gcm_free( &ctx );
bryantaylor 0:eafc3fd41f75 777
bryantaylor 0:eafc3fd41f75 778 if( verbose != 0 )
bryantaylor 0:eafc3fd41f75 779 mbedtls_printf( "passed\n" );
bryantaylor 0:eafc3fd41f75 780
bryantaylor 0:eafc3fd41f75 781 if( verbose != 0 )
bryantaylor 0:eafc3fd41f75 782 mbedtls_printf( " AES-GCM-%3d #%d (%s): ",
bryantaylor 0:eafc3fd41f75 783 key_len, i, "dec" );
bryantaylor 0:eafc3fd41f75 784
bryantaylor 0:eafc3fd41f75 785 mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]], key_len );
bryantaylor 0:eafc3fd41f75 786
bryantaylor 0:eafc3fd41f75 787 ret = mbedtls_gcm_crypt_and_tag( &ctx, MBEDTLS_GCM_DECRYPT,
bryantaylor 0:eafc3fd41f75 788 pt_len[i],
bryantaylor 0:eafc3fd41f75 789 iv[iv_index[i]], iv_len[i],
bryantaylor 0:eafc3fd41f75 790 additional[add_index[i]], add_len[i],
bryantaylor 0:eafc3fd41f75 791 ct[j * 6 + i], buf, 16, tag_buf );
bryantaylor 0:eafc3fd41f75 792
bryantaylor 0:eafc3fd41f75 793 if( ret != 0 ||
bryantaylor 0:eafc3fd41f75 794 memcmp( buf, pt[pt_index[i]], pt_len[i] ) != 0 ||
bryantaylor 0:eafc3fd41f75 795 memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )
bryantaylor 0:eafc3fd41f75 796 {
bryantaylor 0:eafc3fd41f75 797 if( verbose != 0 )
bryantaylor 0:eafc3fd41f75 798 mbedtls_printf( "failed\n" );
bryantaylor 0:eafc3fd41f75 799
bryantaylor 0:eafc3fd41f75 800 return( 1 );
bryantaylor 0:eafc3fd41f75 801 }
bryantaylor 0:eafc3fd41f75 802
bryantaylor 0:eafc3fd41f75 803 mbedtls_gcm_free( &ctx );
bryantaylor 0:eafc3fd41f75 804
bryantaylor 0:eafc3fd41f75 805 if( verbose != 0 )
bryantaylor 0:eafc3fd41f75 806 mbedtls_printf( "passed\n" );
bryantaylor 0:eafc3fd41f75 807
bryantaylor 0:eafc3fd41f75 808 if( verbose != 0 )
bryantaylor 0:eafc3fd41f75 809 mbedtls_printf( " AES-GCM-%3d #%d split (%s): ",
bryantaylor 0:eafc3fd41f75 810 key_len, i, "enc" );
bryantaylor 0:eafc3fd41f75 811
bryantaylor 0:eafc3fd41f75 812 mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]], key_len );
bryantaylor 0:eafc3fd41f75 813
bryantaylor 0:eafc3fd41f75 814 ret = mbedtls_gcm_starts( &ctx, MBEDTLS_GCM_ENCRYPT,
bryantaylor 0:eafc3fd41f75 815 iv[iv_index[i]], iv_len[i],
bryantaylor 0:eafc3fd41f75 816 additional[add_index[i]], add_len[i] );
bryantaylor 0:eafc3fd41f75 817 if( ret != 0 )
bryantaylor 0:eafc3fd41f75 818 {
bryantaylor 0:eafc3fd41f75 819 if( verbose != 0 )
bryantaylor 0:eafc3fd41f75 820 mbedtls_printf( "failed\n" );
bryantaylor 0:eafc3fd41f75 821
bryantaylor 0:eafc3fd41f75 822 return( 1 );
bryantaylor 0:eafc3fd41f75 823 }
bryantaylor 0:eafc3fd41f75 824
bryantaylor 0:eafc3fd41f75 825 if( pt_len[i] > 32 )
bryantaylor 0:eafc3fd41f75 826 {
bryantaylor 0:eafc3fd41f75 827 size_t rest_len = pt_len[i] - 32;
bryantaylor 0:eafc3fd41f75 828 ret = mbedtls_gcm_update( &ctx, 32, pt[pt_index[i]], buf );
bryantaylor 0:eafc3fd41f75 829 if( ret != 0 )
bryantaylor 0:eafc3fd41f75 830 {
bryantaylor 0:eafc3fd41f75 831 if( verbose != 0 )
bryantaylor 0:eafc3fd41f75 832 mbedtls_printf( "failed\n" );
bryantaylor 0:eafc3fd41f75 833
bryantaylor 0:eafc3fd41f75 834 return( 1 );
bryantaylor 0:eafc3fd41f75 835 }
bryantaylor 0:eafc3fd41f75 836
bryantaylor 0:eafc3fd41f75 837 ret = mbedtls_gcm_update( &ctx, rest_len, pt[pt_index[i]] + 32,
bryantaylor 0:eafc3fd41f75 838 buf + 32 );
bryantaylor 0:eafc3fd41f75 839 if( ret != 0 )
bryantaylor 0:eafc3fd41f75 840 {
bryantaylor 0:eafc3fd41f75 841 if( verbose != 0 )
bryantaylor 0:eafc3fd41f75 842 mbedtls_printf( "failed\n" );
bryantaylor 0:eafc3fd41f75 843
bryantaylor 0:eafc3fd41f75 844 return( 1 );
bryantaylor 0:eafc3fd41f75 845 }
bryantaylor 0:eafc3fd41f75 846 }
bryantaylor 0:eafc3fd41f75 847 else
bryantaylor 0:eafc3fd41f75 848 {
bryantaylor 0:eafc3fd41f75 849 ret = mbedtls_gcm_update( &ctx, pt_len[i], pt[pt_index[i]], buf );
bryantaylor 0:eafc3fd41f75 850 if( ret != 0 )
bryantaylor 0:eafc3fd41f75 851 {
bryantaylor 0:eafc3fd41f75 852 if( verbose != 0 )
bryantaylor 0:eafc3fd41f75 853 mbedtls_printf( "failed\n" );
bryantaylor 0:eafc3fd41f75 854
bryantaylor 0:eafc3fd41f75 855 return( 1 );
bryantaylor 0:eafc3fd41f75 856 }
bryantaylor 0:eafc3fd41f75 857 }
bryantaylor 0:eafc3fd41f75 858
bryantaylor 0:eafc3fd41f75 859 ret = mbedtls_gcm_finish( &ctx, tag_buf, 16 );
bryantaylor 0:eafc3fd41f75 860 if( ret != 0 ||
bryantaylor 0:eafc3fd41f75 861 memcmp( buf, ct[j * 6 + i], pt_len[i] ) != 0 ||
bryantaylor 0:eafc3fd41f75 862 memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )
bryantaylor 0:eafc3fd41f75 863 {
bryantaylor 0:eafc3fd41f75 864 if( verbose != 0 )
bryantaylor 0:eafc3fd41f75 865 mbedtls_printf( "failed\n" );
bryantaylor 0:eafc3fd41f75 866
bryantaylor 0:eafc3fd41f75 867 return( 1 );
bryantaylor 0:eafc3fd41f75 868 }
bryantaylor 0:eafc3fd41f75 869
bryantaylor 0:eafc3fd41f75 870 mbedtls_gcm_free( &ctx );
bryantaylor 0:eafc3fd41f75 871
bryantaylor 0:eafc3fd41f75 872 if( verbose != 0 )
bryantaylor 0:eafc3fd41f75 873 mbedtls_printf( "passed\n" );
bryantaylor 0:eafc3fd41f75 874
bryantaylor 0:eafc3fd41f75 875 if( verbose != 0 )
bryantaylor 0:eafc3fd41f75 876 mbedtls_printf( " AES-GCM-%3d #%d split (%s): ",
bryantaylor 0:eafc3fd41f75 877 key_len, i, "dec" );
bryantaylor 0:eafc3fd41f75 878
bryantaylor 0:eafc3fd41f75 879 mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]], key_len );
bryantaylor 0:eafc3fd41f75 880
bryantaylor 0:eafc3fd41f75 881 ret = mbedtls_gcm_starts( &ctx, MBEDTLS_GCM_DECRYPT,
bryantaylor 0:eafc3fd41f75 882 iv[iv_index[i]], iv_len[i],
bryantaylor 0:eafc3fd41f75 883 additional[add_index[i]], add_len[i] );
bryantaylor 0:eafc3fd41f75 884 if( ret != 0 )
bryantaylor 0:eafc3fd41f75 885 {
bryantaylor 0:eafc3fd41f75 886 if( verbose != 0 )
bryantaylor 0:eafc3fd41f75 887 mbedtls_printf( "failed\n" );
bryantaylor 0:eafc3fd41f75 888
bryantaylor 0:eafc3fd41f75 889 return( 1 );
bryantaylor 0:eafc3fd41f75 890 }
bryantaylor 0:eafc3fd41f75 891
bryantaylor 0:eafc3fd41f75 892 if( pt_len[i] > 32 )
bryantaylor 0:eafc3fd41f75 893 {
bryantaylor 0:eafc3fd41f75 894 size_t rest_len = pt_len[i] - 32;
bryantaylor 0:eafc3fd41f75 895 ret = mbedtls_gcm_update( &ctx, 32, ct[j * 6 + i], buf );
bryantaylor 0:eafc3fd41f75 896 if( ret != 0 )
bryantaylor 0:eafc3fd41f75 897 {
bryantaylor 0:eafc3fd41f75 898 if( verbose != 0 )
bryantaylor 0:eafc3fd41f75 899 mbedtls_printf( "failed\n" );
bryantaylor 0:eafc3fd41f75 900
bryantaylor 0:eafc3fd41f75 901 return( 1 );
bryantaylor 0:eafc3fd41f75 902 }
bryantaylor 0:eafc3fd41f75 903
bryantaylor 0:eafc3fd41f75 904 ret = mbedtls_gcm_update( &ctx, rest_len, ct[j * 6 + i] + 32,
bryantaylor 0:eafc3fd41f75 905 buf + 32 );
bryantaylor 0:eafc3fd41f75 906 if( ret != 0 )
bryantaylor 0:eafc3fd41f75 907 {
bryantaylor 0:eafc3fd41f75 908 if( verbose != 0 )
bryantaylor 0:eafc3fd41f75 909 mbedtls_printf( "failed\n" );
bryantaylor 0:eafc3fd41f75 910
bryantaylor 0:eafc3fd41f75 911 return( 1 );
bryantaylor 0:eafc3fd41f75 912 }
bryantaylor 0:eafc3fd41f75 913 }
bryantaylor 0:eafc3fd41f75 914 else
bryantaylor 0:eafc3fd41f75 915 {
bryantaylor 0:eafc3fd41f75 916 ret = mbedtls_gcm_update( &ctx, pt_len[i], ct[j * 6 + i], buf );
bryantaylor 0:eafc3fd41f75 917 if( ret != 0 )
bryantaylor 0:eafc3fd41f75 918 {
bryantaylor 0:eafc3fd41f75 919 if( verbose != 0 )
bryantaylor 0:eafc3fd41f75 920 mbedtls_printf( "failed\n" );
bryantaylor 0:eafc3fd41f75 921
bryantaylor 0:eafc3fd41f75 922 return( 1 );
bryantaylor 0:eafc3fd41f75 923 }
bryantaylor 0:eafc3fd41f75 924 }
bryantaylor 0:eafc3fd41f75 925
bryantaylor 0:eafc3fd41f75 926 ret = mbedtls_gcm_finish( &ctx, tag_buf, 16 );
bryantaylor 0:eafc3fd41f75 927 if( ret != 0 ||
bryantaylor 0:eafc3fd41f75 928 memcmp( buf, pt[pt_index[i]], pt_len[i] ) != 0 ||
bryantaylor 0:eafc3fd41f75 929 memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )
bryantaylor 0:eafc3fd41f75 930 {
bryantaylor 0:eafc3fd41f75 931 if( verbose != 0 )
bryantaylor 0:eafc3fd41f75 932 mbedtls_printf( "failed\n" );
bryantaylor 0:eafc3fd41f75 933
bryantaylor 0:eafc3fd41f75 934 return( 1 );
bryantaylor 0:eafc3fd41f75 935 }
bryantaylor 0:eafc3fd41f75 936
bryantaylor 0:eafc3fd41f75 937 mbedtls_gcm_free( &ctx );
bryantaylor 0:eafc3fd41f75 938
bryantaylor 0:eafc3fd41f75 939 if( verbose != 0 )
bryantaylor 0:eafc3fd41f75 940 mbedtls_printf( "passed\n" );
bryantaylor 0:eafc3fd41f75 941
bryantaylor 0:eafc3fd41f75 942 }
bryantaylor 0:eafc3fd41f75 943 }
bryantaylor 0:eafc3fd41f75 944
bryantaylor 0:eafc3fd41f75 945 if( verbose != 0 )
bryantaylor 0:eafc3fd41f75 946 mbedtls_printf( "\n" );
bryantaylor 0:eafc3fd41f75 947
bryantaylor 0:eafc3fd41f75 948 return( 0 );
bryantaylor 0:eafc3fd41f75 949 }
bryantaylor 0:eafc3fd41f75 950
bryantaylor 0:eafc3fd41f75 951 #endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
bryantaylor 0:eafc3fd41f75 952
bryantaylor 0:eafc3fd41f75 953 #endif /* MBEDTLS_GCM_C */