Avnet / WNCInterface

The WDCInterface is is a drop-in replacement for an EthernetInterface class that allows the user to connect to the Internet with a Wistron NeWeb Corporation (WNC) M14A2A Series data module using the standard network Socket API's. This interface class is used in the AT&T Cellular IoT Starter Kit which is sold by Avnet (http://cloudconnectkits.org/product/att-cellular-iot-starter-kit).

Dependencies:   WncControllerK64F

Dependents:   WNCProximityMqtt Pubnub_ATT_IoT_SK_WNC_sync BluemixDemo BluemixQS ... more

See the WNCInterface README in the Wiki tab for detailed information on this library.

mbedtls/source/pk_wrap.c@29:b278b745fb4f, 2017-03-24 (annotated)

Committer:
JMF
Date:
Fri Mar 24 22:26:23 2017 +0000
Revision:
29:b278b745fb4f
Parent:
12:0071cb144c7a 
updated Class name of TCPSocketConnection to WncTCPSocketConnection;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
JMF 12:0071cb144c7a 1 /*
JMF 12:0071cb144c7a 2 * Public Key abstraction layer: wrapper functions
JMF 12:0071cb144c7a 3 *
JMF 12:0071cb144c7a 4 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
JMF 12:0071cb144c7a 5 * SPDX-License-Identifier: Apache-2.0
JMF 12:0071cb144c7a 6 *
JMF 12:0071cb144c7a 7 * Licensed under the Apache License, Version 2.0 (the "License"); you may
JMF 12:0071cb144c7a 8 * not use this file except in compliance with the License.
JMF 12:0071cb144c7a 9 * You may obtain a copy of the License at
JMF 12:0071cb144c7a 10 *
JMF 12:0071cb144c7a 11 * http://www.apache.org/licenses/LICENSE-2.0
JMF 12:0071cb144c7a 12 *
JMF 12:0071cb144c7a 13 * Unless required by applicable law or agreed to in writing, software
JMF 12:0071cb144c7a 14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
JMF 12:0071cb144c7a 15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
JMF 12:0071cb144c7a 16 * See the License for the specific language governing permissions and
JMF 12:0071cb144c7a 17 * limitations under the License.
JMF 12:0071cb144c7a 18 *
JMF 12:0071cb144c7a 19 * This file is part of mbed TLS (https://tls.mbed.org)
JMF 12:0071cb144c7a 20 */
JMF 12:0071cb144c7a 21
JMF 12:0071cb144c7a 22 #if !defined(MBEDTLS_CONFIG_FILE)
JMF 12:0071cb144c7a 23 #include "mbedtls/config.h"
JMF 12:0071cb144c7a 24 #else
JMF 12:0071cb144c7a 25 #include MBEDTLS_CONFIG_FILE
JMF 12:0071cb144c7a 26 #endif
JMF 12:0071cb144c7a 27
JMF 12:0071cb144c7a 28 #if defined(MBEDTLS_PK_C)
JMF 12:0071cb144c7a 29 #include "mbedtls/pk_internal.h"
JMF 12:0071cb144c7a 30
JMF 12:0071cb144c7a 31 /* Even if RSA not activated, for the sake of RSA-alt */
JMF 12:0071cb144c7a 32 #include "mbedtls/rsa.h"
JMF 12:0071cb144c7a 33
JMF 12:0071cb144c7a 34 #include <string.h>
JMF 12:0071cb144c7a 35
JMF 12:0071cb144c7a 36 #if defined(MBEDTLS_ECP_C)
JMF 12:0071cb144c7a 37 #include "mbedtls/ecp.h"
JMF 12:0071cb144c7a 38 #endif
JMF 12:0071cb144c7a 39
JMF 12:0071cb144c7a 40 #if defined(MBEDTLS_ECDSA_C)
JMF 12:0071cb144c7a 41 #include "mbedtls/ecdsa.h"
JMF 12:0071cb144c7a 42 #endif
JMF 12:0071cb144c7a 43
JMF 12:0071cb144c7a 44 #if defined(MBEDTLS_PLATFORM_C)
JMF 12:0071cb144c7a 45 #include "mbedtls/platform.h"
JMF 12:0071cb144c7a 46 #else
JMF 12:0071cb144c7a 47 #include <stdlib.h>
JMF 12:0071cb144c7a 48 #define mbedtls_calloc calloc
JMF 12:0071cb144c7a 49 #define mbedtls_free free
JMF 12:0071cb144c7a 50 #endif
JMF 12:0071cb144c7a 51
JMF 12:0071cb144c7a 52 #if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
JMF 12:0071cb144c7a 53 /* Implementation that should never be optimized out by the compiler */
JMF 12:0071cb144c7a 54 static void mbedtls_zeroize( void *v, size_t n ) {
JMF 12:0071cb144c7a 55 volatile unsigned char *p = v; while( n-- ) *p++ = 0;
JMF 12:0071cb144c7a 56 }
JMF 12:0071cb144c7a 57 #endif
JMF 12:0071cb144c7a 58
JMF 12:0071cb144c7a 59 #if defined(MBEDTLS_RSA_C)
JMF 12:0071cb144c7a 60 static int rsa_can_do( mbedtls_pk_type_t type )
JMF 12:0071cb144c7a 61 {
JMF 12:0071cb144c7a 62 return( type == MBEDTLS_PK_RSA ||
JMF 12:0071cb144c7a 63 type == MBEDTLS_PK_RSASSA_PSS );
JMF 12:0071cb144c7a 64 }
JMF 12:0071cb144c7a 65
JMF 12:0071cb144c7a 66 static size_t rsa_get_bitlen( const void *ctx )
JMF 12:0071cb144c7a 67 {
JMF 12:0071cb144c7a 68 return( 8 * ((const mbedtls_rsa_context *) ctx)->len );
JMF 12:0071cb144c7a 69 }
JMF 12:0071cb144c7a 70
JMF 12:0071cb144c7a 71 static int rsa_verify_wrap( void *ctx, mbedtls_md_type_t md_alg,
JMF 12:0071cb144c7a 72 const unsigned char *hash, size_t hash_len,
JMF 12:0071cb144c7a 73 const unsigned char *sig, size_t sig_len )
JMF 12:0071cb144c7a 74 {
JMF 12:0071cb144c7a 75 int ret;
JMF 12:0071cb144c7a 76
JMF 12:0071cb144c7a 77 if( sig_len < ((mbedtls_rsa_context *) ctx)->len )
JMF 12:0071cb144c7a 78 return( MBEDTLS_ERR_RSA_VERIFY_FAILED );
JMF 12:0071cb144c7a 79
JMF 12:0071cb144c7a 80 if( ( ret = mbedtls_rsa_pkcs1_verify( (mbedtls_rsa_context *) ctx, NULL, NULL,
JMF 12:0071cb144c7a 81 MBEDTLS_RSA_PUBLIC, md_alg,
JMF 12:0071cb144c7a 82 (unsigned int) hash_len, hash, sig ) ) != 0 )
JMF 12:0071cb144c7a 83 return( ret );
JMF 12:0071cb144c7a 84
JMF 12:0071cb144c7a 85 if( sig_len > ((mbedtls_rsa_context *) ctx)->len )
JMF 12:0071cb144c7a 86 return( MBEDTLS_ERR_PK_SIG_LEN_MISMATCH );
JMF 12:0071cb144c7a 87
JMF 12:0071cb144c7a 88 return( 0 );
JMF 12:0071cb144c7a 89 }
JMF 12:0071cb144c7a 90
JMF 12:0071cb144c7a 91 static int rsa_sign_wrap( void *ctx, mbedtls_md_type_t md_alg,
JMF 12:0071cb144c7a 92 const unsigned char *hash, size_t hash_len,
JMF 12:0071cb144c7a 93 unsigned char *sig, size_t *sig_len,
JMF 12:0071cb144c7a 94 int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
JMF 12:0071cb144c7a 95 {
JMF 12:0071cb144c7a 96 *sig_len = ((mbedtls_rsa_context *) ctx)->len;
JMF 12:0071cb144c7a 97
JMF 12:0071cb144c7a 98 return( mbedtls_rsa_pkcs1_sign( (mbedtls_rsa_context *) ctx, f_rng, p_rng, MBEDTLS_RSA_PRIVATE,
JMF 12:0071cb144c7a 99 md_alg, (unsigned int) hash_len, hash, sig ) );
JMF 12:0071cb144c7a 100 }
JMF 12:0071cb144c7a 101
JMF 12:0071cb144c7a 102 static int rsa_decrypt_wrap( void *ctx,
JMF 12:0071cb144c7a 103 const unsigned char *input, size_t ilen,
JMF 12:0071cb144c7a 104 unsigned char *output, size_t *olen, size_t osize,
JMF 12:0071cb144c7a 105 int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
JMF 12:0071cb144c7a 106 {
JMF 12:0071cb144c7a 107 if( ilen != ((mbedtls_rsa_context *) ctx)->len )
JMF 12:0071cb144c7a 108 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
JMF 12:0071cb144c7a 109
JMF 12:0071cb144c7a 110 return( mbedtls_rsa_pkcs1_decrypt( (mbedtls_rsa_context *) ctx, f_rng, p_rng,
JMF 12:0071cb144c7a 111 MBEDTLS_RSA_PRIVATE, olen, input, output, osize ) );
JMF 12:0071cb144c7a 112 }
JMF 12:0071cb144c7a 113
JMF 12:0071cb144c7a 114 static int rsa_encrypt_wrap( void *ctx,
JMF 12:0071cb144c7a 115 const unsigned char *input, size_t ilen,
JMF 12:0071cb144c7a 116 unsigned char *output, size_t *olen, size_t osize,
JMF 12:0071cb144c7a 117 int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
JMF 12:0071cb144c7a 118 {
JMF 12:0071cb144c7a 119 *olen = ((mbedtls_rsa_context *) ctx)->len;
JMF 12:0071cb144c7a 120
JMF 12:0071cb144c7a 121 if( *olen > osize )
JMF 12:0071cb144c7a 122 return( MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE );
JMF 12:0071cb144c7a 123
JMF 12:0071cb144c7a 124 return( mbedtls_rsa_pkcs1_encrypt( (mbedtls_rsa_context *) ctx,
JMF 12:0071cb144c7a 125 f_rng, p_rng, MBEDTLS_RSA_PUBLIC, ilen, input, output ) );
JMF 12:0071cb144c7a 126 }
JMF 12:0071cb144c7a 127
JMF 12:0071cb144c7a 128 static int rsa_check_pair_wrap( const void *pub, const void *prv )
JMF 12:0071cb144c7a 129 {
JMF 12:0071cb144c7a 130 return( mbedtls_rsa_check_pub_priv( (const mbedtls_rsa_context *) pub,
JMF 12:0071cb144c7a 131 (const mbedtls_rsa_context *) prv ) );
JMF 12:0071cb144c7a 132 }
JMF 12:0071cb144c7a 133
JMF 12:0071cb144c7a 134 static void *rsa_alloc_wrap( void )
JMF 12:0071cb144c7a 135 {
JMF 12:0071cb144c7a 136 void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_rsa_context ) );
JMF 12:0071cb144c7a 137
JMF 12:0071cb144c7a 138 if( ctx != NULL )
JMF 12:0071cb144c7a 139 mbedtls_rsa_init( (mbedtls_rsa_context *) ctx, 0, 0 );
JMF 12:0071cb144c7a 140
JMF 12:0071cb144c7a 141 return( ctx );
JMF 12:0071cb144c7a 142 }
JMF 12:0071cb144c7a 143
JMF 12:0071cb144c7a 144 static void rsa_free_wrap( void *ctx )
JMF 12:0071cb144c7a 145 {
JMF 12:0071cb144c7a 146 mbedtls_rsa_free( (mbedtls_rsa_context *) ctx );
JMF 12:0071cb144c7a 147 mbedtls_free( ctx );
JMF 12:0071cb144c7a 148 }
JMF 12:0071cb144c7a 149
JMF 12:0071cb144c7a 150 static void rsa_debug( const void *ctx, mbedtls_pk_debug_item *items )
JMF 12:0071cb144c7a 151 {
JMF 12:0071cb144c7a 152 items->type = MBEDTLS_PK_DEBUG_MPI;
JMF 12:0071cb144c7a 153 items->name = "rsa.N";
JMF 12:0071cb144c7a 154 items->value = &( ((mbedtls_rsa_context *) ctx)->N );
JMF 12:0071cb144c7a 155
JMF 12:0071cb144c7a 156 items++;
JMF 12:0071cb144c7a 157
JMF 12:0071cb144c7a 158 items->type = MBEDTLS_PK_DEBUG_MPI;
JMF 12:0071cb144c7a 159 items->name = "rsa.E";
JMF 12:0071cb144c7a 160 items->value = &( ((mbedtls_rsa_context *) ctx)->E );
JMF 12:0071cb144c7a 161 }
JMF 12:0071cb144c7a 162
JMF 12:0071cb144c7a 163 const mbedtls_pk_info_t mbedtls_rsa_info = {
JMF 12:0071cb144c7a 164 MBEDTLS_PK_RSA,
JMF 12:0071cb144c7a 165 "RSA",
JMF 12:0071cb144c7a 166 rsa_get_bitlen,
JMF 12:0071cb144c7a 167 rsa_can_do,
JMF 12:0071cb144c7a 168 rsa_verify_wrap,
JMF 12:0071cb144c7a 169 rsa_sign_wrap,
JMF 12:0071cb144c7a 170 rsa_decrypt_wrap,
JMF 12:0071cb144c7a 171 rsa_encrypt_wrap,
JMF 12:0071cb144c7a 172 rsa_check_pair_wrap,
JMF 12:0071cb144c7a 173 rsa_alloc_wrap,
JMF 12:0071cb144c7a 174 rsa_free_wrap,
JMF 12:0071cb144c7a 175 rsa_debug,
JMF 12:0071cb144c7a 176 };
JMF 12:0071cb144c7a 177 #endif /* MBEDTLS_RSA_C */
JMF 12:0071cb144c7a 178
JMF 12:0071cb144c7a 179 #if defined(MBEDTLS_ECP_C)
JMF 12:0071cb144c7a 180 /*
JMF 12:0071cb144c7a 181 * Generic EC key
JMF 12:0071cb144c7a 182 */
JMF 12:0071cb144c7a 183 static int eckey_can_do( mbedtls_pk_type_t type )
JMF 12:0071cb144c7a 184 {
JMF 12:0071cb144c7a 185 return( type == MBEDTLS_PK_ECKEY ||
JMF 12:0071cb144c7a 186 type == MBEDTLS_PK_ECKEY_DH ||
JMF 12:0071cb144c7a 187 type == MBEDTLS_PK_ECDSA );
JMF 12:0071cb144c7a 188 }
JMF 12:0071cb144c7a 189
JMF 12:0071cb144c7a 190 static size_t eckey_get_bitlen( const void *ctx )
JMF 12:0071cb144c7a 191 {
JMF 12:0071cb144c7a 192 return( ((mbedtls_ecp_keypair *) ctx)->grp.pbits );
JMF 12:0071cb144c7a 193 }
JMF 12:0071cb144c7a 194
JMF 12:0071cb144c7a 195 #if defined(MBEDTLS_ECDSA_C)
JMF 12:0071cb144c7a 196 /* Forward declarations */
JMF 12:0071cb144c7a 197 static int ecdsa_verify_wrap( void *ctx, mbedtls_md_type_t md_alg,
JMF 12:0071cb144c7a 198 const unsigned char *hash, size_t hash_len,
JMF 12:0071cb144c7a 199 const unsigned char *sig, size_t sig_len );
JMF 12:0071cb144c7a 200
JMF 12:0071cb144c7a 201 static int ecdsa_sign_wrap( void *ctx, mbedtls_md_type_t md_alg,
JMF 12:0071cb144c7a 202 const unsigned char *hash, size_t hash_len,
JMF 12:0071cb144c7a 203 unsigned char *sig, size_t *sig_len,
JMF 12:0071cb144c7a 204 int (*f_rng)(void *, unsigned char *, size_t), void *p_rng );
JMF 12:0071cb144c7a 205
JMF 12:0071cb144c7a 206 static int eckey_verify_wrap( void *ctx, mbedtls_md_type_t md_alg,
JMF 12:0071cb144c7a 207 const unsigned char *hash, size_t hash_len,
JMF 12:0071cb144c7a 208 const unsigned char *sig, size_t sig_len )
JMF 12:0071cb144c7a 209 {
JMF 12:0071cb144c7a 210 int ret;
JMF 12:0071cb144c7a 211 mbedtls_ecdsa_context ecdsa;
JMF 12:0071cb144c7a 212
JMF 12:0071cb144c7a 213 mbedtls_ecdsa_init( &ecdsa );
JMF 12:0071cb144c7a 214
JMF 12:0071cb144c7a 215 if( ( ret = mbedtls_ecdsa_from_keypair( &ecdsa, ctx ) ) == 0 )
JMF 12:0071cb144c7a 216 ret = ecdsa_verify_wrap( &ecdsa, md_alg, hash, hash_len, sig, sig_len );
JMF 12:0071cb144c7a 217
JMF 12:0071cb144c7a 218 mbedtls_ecdsa_free( &ecdsa );
JMF 12:0071cb144c7a 219
JMF 12:0071cb144c7a 220 return( ret );
JMF 12:0071cb144c7a 221 }
JMF 12:0071cb144c7a 222
JMF 12:0071cb144c7a 223 static int eckey_sign_wrap( void *ctx, mbedtls_md_type_t md_alg,
JMF 12:0071cb144c7a 224 const unsigned char *hash, size_t hash_len,
JMF 12:0071cb144c7a 225 unsigned char *sig, size_t *sig_len,
JMF 12:0071cb144c7a 226 int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
JMF 12:0071cb144c7a 227 {
JMF 12:0071cb144c7a 228 int ret;
JMF 12:0071cb144c7a 229 mbedtls_ecdsa_context ecdsa;
JMF 12:0071cb144c7a 230
JMF 12:0071cb144c7a 231 mbedtls_ecdsa_init( &ecdsa );
JMF 12:0071cb144c7a 232
JMF 12:0071cb144c7a 233 if( ( ret = mbedtls_ecdsa_from_keypair( &ecdsa, ctx ) ) == 0 )
JMF 12:0071cb144c7a 234 ret = ecdsa_sign_wrap( &ecdsa, md_alg, hash, hash_len, sig, sig_len,
JMF 12:0071cb144c7a 235 f_rng, p_rng );
JMF 12:0071cb144c7a 236
JMF 12:0071cb144c7a 237 mbedtls_ecdsa_free( &ecdsa );
JMF 12:0071cb144c7a 238
JMF 12:0071cb144c7a 239 return( ret );
JMF 12:0071cb144c7a 240 }
JMF 12:0071cb144c7a 241
JMF 12:0071cb144c7a 242 #endif /* MBEDTLS_ECDSA_C */
JMF 12:0071cb144c7a 243
JMF 12:0071cb144c7a 244 static int eckey_check_pair( const void *pub, const void *prv )
JMF 12:0071cb144c7a 245 {
JMF 12:0071cb144c7a 246 return( mbedtls_ecp_check_pub_priv( (const mbedtls_ecp_keypair *) pub,
JMF 12:0071cb144c7a 247 (const mbedtls_ecp_keypair *) prv ) );
JMF 12:0071cb144c7a 248 }
JMF 12:0071cb144c7a 249
JMF 12:0071cb144c7a 250 static void *eckey_alloc_wrap( void )
JMF 12:0071cb144c7a 251 {
JMF 12:0071cb144c7a 252 void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_ecp_keypair ) );
JMF 12:0071cb144c7a 253
JMF 12:0071cb144c7a 254 if( ctx != NULL )
JMF 12:0071cb144c7a 255 mbedtls_ecp_keypair_init( ctx );
JMF 12:0071cb144c7a 256
JMF 12:0071cb144c7a 257 return( ctx );
JMF 12:0071cb144c7a 258 }
JMF 12:0071cb144c7a 259
JMF 12:0071cb144c7a 260 static void eckey_free_wrap( void *ctx )
JMF 12:0071cb144c7a 261 {
JMF 12:0071cb144c7a 262 mbedtls_ecp_keypair_free( (mbedtls_ecp_keypair *) ctx );
JMF 12:0071cb144c7a 263 mbedtls_free( ctx );
JMF 12:0071cb144c7a 264 }
JMF 12:0071cb144c7a 265
JMF 12:0071cb144c7a 266 static void eckey_debug( const void *ctx, mbedtls_pk_debug_item *items )
JMF 12:0071cb144c7a 267 {
JMF 12:0071cb144c7a 268 items->type = MBEDTLS_PK_DEBUG_ECP;
JMF 12:0071cb144c7a 269 items->name = "eckey.Q";
JMF 12:0071cb144c7a 270 items->value = &( ((mbedtls_ecp_keypair *) ctx)->Q );
JMF 12:0071cb144c7a 271 }
JMF 12:0071cb144c7a 272
JMF 12:0071cb144c7a 273 const mbedtls_pk_info_t mbedtls_eckey_info = {
JMF 12:0071cb144c7a 274 MBEDTLS_PK_ECKEY,
JMF 12:0071cb144c7a 275 "EC",
JMF 12:0071cb144c7a 276 eckey_get_bitlen,
JMF 12:0071cb144c7a 277 eckey_can_do,
JMF 12:0071cb144c7a 278 #if defined(MBEDTLS_ECDSA_C)
JMF 12:0071cb144c7a 279 eckey_verify_wrap,
JMF 12:0071cb144c7a 280 eckey_sign_wrap,
JMF 12:0071cb144c7a 281 #else
JMF 12:0071cb144c7a 282 NULL,
JMF 12:0071cb144c7a 283 NULL,
JMF 12:0071cb144c7a 284 #endif
JMF 12:0071cb144c7a 285 NULL,
JMF 12:0071cb144c7a 286 NULL,
JMF 12:0071cb144c7a 287 eckey_check_pair,
JMF 12:0071cb144c7a 288 eckey_alloc_wrap,
JMF 12:0071cb144c7a 289 eckey_free_wrap,
JMF 12:0071cb144c7a 290 eckey_debug,
JMF 12:0071cb144c7a 291 };
JMF 12:0071cb144c7a 292
JMF 12:0071cb144c7a 293 /*
JMF 12:0071cb144c7a 294 * EC key restricted to ECDH
JMF 12:0071cb144c7a 295 */
JMF 12:0071cb144c7a 296 static int eckeydh_can_do( mbedtls_pk_type_t type )
JMF 12:0071cb144c7a 297 {
JMF 12:0071cb144c7a 298 return( type == MBEDTLS_PK_ECKEY ||
JMF 12:0071cb144c7a 299 type == MBEDTLS_PK_ECKEY_DH );
JMF 12:0071cb144c7a 300 }
JMF 12:0071cb144c7a 301
JMF 12:0071cb144c7a 302 const mbedtls_pk_info_t mbedtls_eckeydh_info = {
JMF 12:0071cb144c7a 303 MBEDTLS_PK_ECKEY_DH,
JMF 12:0071cb144c7a 304 "EC_DH",
JMF 12:0071cb144c7a 305 eckey_get_bitlen, /* Same underlying key structure */
JMF 12:0071cb144c7a 306 eckeydh_can_do,
JMF 12:0071cb144c7a 307 NULL,
JMF 12:0071cb144c7a 308 NULL,
JMF 12:0071cb144c7a 309 NULL,
JMF 12:0071cb144c7a 310 NULL,
JMF 12:0071cb144c7a 311 eckey_check_pair,
JMF 12:0071cb144c7a 312 eckey_alloc_wrap, /* Same underlying key structure */
JMF 12:0071cb144c7a 313 eckey_free_wrap, /* Same underlying key structure */
JMF 12:0071cb144c7a 314 eckey_debug, /* Same underlying key structure */
JMF 12:0071cb144c7a 315 };
JMF 12:0071cb144c7a 316 #endif /* MBEDTLS_ECP_C */
JMF 12:0071cb144c7a 317
JMF 12:0071cb144c7a 318 #if defined(MBEDTLS_ECDSA_C)
JMF 12:0071cb144c7a 319 static int ecdsa_can_do( mbedtls_pk_type_t type )
JMF 12:0071cb144c7a 320 {
JMF 12:0071cb144c7a 321 return( type == MBEDTLS_PK_ECDSA );
JMF 12:0071cb144c7a 322 }
JMF 12:0071cb144c7a 323
JMF 12:0071cb144c7a 324 static int ecdsa_verify_wrap( void *ctx, mbedtls_md_type_t md_alg,
JMF 12:0071cb144c7a 325 const unsigned char *hash, size_t hash_len,
JMF 12:0071cb144c7a 326 const unsigned char *sig, size_t sig_len )
JMF 12:0071cb144c7a 327 {
JMF 12:0071cb144c7a 328 int ret;
JMF 12:0071cb144c7a 329 ((void) md_alg);
JMF 12:0071cb144c7a 330
JMF 12:0071cb144c7a 331 ret = mbedtls_ecdsa_read_signature( (mbedtls_ecdsa_context *) ctx,
JMF 12:0071cb144c7a 332 hash, hash_len, sig, sig_len );
JMF 12:0071cb144c7a 333
JMF 12:0071cb144c7a 334 if( ret == MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH )
JMF 12:0071cb144c7a 335 return( MBEDTLS_ERR_PK_SIG_LEN_MISMATCH );
JMF 12:0071cb144c7a 336
JMF 12:0071cb144c7a 337 return( ret );
JMF 12:0071cb144c7a 338 }
JMF 12:0071cb144c7a 339
JMF 12:0071cb144c7a 340 static int ecdsa_sign_wrap( void *ctx, mbedtls_md_type_t md_alg,
JMF 12:0071cb144c7a 341 const unsigned char *hash, size_t hash_len,
JMF 12:0071cb144c7a 342 unsigned char *sig, size_t *sig_len,
JMF 12:0071cb144c7a 343 int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
JMF 12:0071cb144c7a 344 {
JMF 12:0071cb144c7a 345 return( mbedtls_ecdsa_write_signature( (mbedtls_ecdsa_context *) ctx,
JMF 12:0071cb144c7a 346 md_alg, hash, hash_len, sig, sig_len, f_rng, p_rng ) );
JMF 12:0071cb144c7a 347 }
JMF 12:0071cb144c7a 348
JMF 12:0071cb144c7a 349 static void *ecdsa_alloc_wrap( void )
JMF 12:0071cb144c7a 350 {
JMF 12:0071cb144c7a 351 void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_ecdsa_context ) );
JMF 12:0071cb144c7a 352
JMF 12:0071cb144c7a 353 if( ctx != NULL )
JMF 12:0071cb144c7a 354 mbedtls_ecdsa_init( (mbedtls_ecdsa_context *) ctx );
JMF 12:0071cb144c7a 355
JMF 12:0071cb144c7a 356 return( ctx );
JMF 12:0071cb144c7a 357 }
JMF 12:0071cb144c7a 358
JMF 12:0071cb144c7a 359 static void ecdsa_free_wrap( void *ctx )
JMF 12:0071cb144c7a 360 {
JMF 12:0071cb144c7a 361 mbedtls_ecdsa_free( (mbedtls_ecdsa_context *) ctx );
JMF 12:0071cb144c7a 362 mbedtls_free( ctx );
JMF 12:0071cb144c7a 363 }
JMF 12:0071cb144c7a 364
JMF 12:0071cb144c7a 365 const mbedtls_pk_info_t mbedtls_ecdsa_info = {
JMF 12:0071cb144c7a 366 MBEDTLS_PK_ECDSA,
JMF 12:0071cb144c7a 367 "ECDSA",
JMF 12:0071cb144c7a 368 eckey_get_bitlen, /* Compatible key structures */
JMF 12:0071cb144c7a 369 ecdsa_can_do,
JMF 12:0071cb144c7a 370 ecdsa_verify_wrap,
JMF 12:0071cb144c7a 371 ecdsa_sign_wrap,
JMF 12:0071cb144c7a 372 NULL,
JMF 12:0071cb144c7a 373 NULL,
JMF 12:0071cb144c7a 374 eckey_check_pair, /* Compatible key structures */
JMF 12:0071cb144c7a 375 ecdsa_alloc_wrap,
JMF 12:0071cb144c7a 376 ecdsa_free_wrap,
JMF 12:0071cb144c7a 377 eckey_debug, /* Compatible key structures */
JMF 12:0071cb144c7a 378 };
JMF 12:0071cb144c7a 379 #endif /* MBEDTLS_ECDSA_C */
JMF 12:0071cb144c7a 380
JMF 12:0071cb144c7a 381 #if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
JMF 12:0071cb144c7a 382 /*
JMF 12:0071cb144c7a 383 * Support for alternative RSA-private implementations
JMF 12:0071cb144c7a 384 */
JMF 12:0071cb144c7a 385
JMF 12:0071cb144c7a 386 static int rsa_alt_can_do( mbedtls_pk_type_t type )
JMF 12:0071cb144c7a 387 {
JMF 12:0071cb144c7a 388 return( type == MBEDTLS_PK_RSA );
JMF 12:0071cb144c7a 389 }
JMF 12:0071cb144c7a 390
JMF 12:0071cb144c7a 391 static size_t rsa_alt_get_bitlen( const void *ctx )
JMF 12:0071cb144c7a 392 {
JMF 12:0071cb144c7a 393 const mbedtls_rsa_alt_context *rsa_alt = (const mbedtls_rsa_alt_context *) ctx;
JMF 12:0071cb144c7a 394
JMF 12:0071cb144c7a 395 return( 8 * rsa_alt->key_len_func( rsa_alt->key ) );
JMF 12:0071cb144c7a 396 }
JMF 12:0071cb144c7a 397
JMF 12:0071cb144c7a 398 static int rsa_alt_sign_wrap( void *ctx, mbedtls_md_type_t md_alg,
JMF 12:0071cb144c7a 399 const unsigned char *hash, size_t hash_len,
JMF 12:0071cb144c7a 400 unsigned char *sig, size_t *sig_len,
JMF 12:0071cb144c7a 401 int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
JMF 12:0071cb144c7a 402 {
JMF 12:0071cb144c7a 403 mbedtls_rsa_alt_context *rsa_alt = (mbedtls_rsa_alt_context *) ctx;
JMF 12:0071cb144c7a 404
JMF 12:0071cb144c7a 405 *sig_len = rsa_alt->key_len_func( rsa_alt->key );
JMF 12:0071cb144c7a 406
JMF 12:0071cb144c7a 407 return( rsa_alt->sign_func( rsa_alt->key, f_rng, p_rng, MBEDTLS_RSA_PRIVATE,
JMF 12:0071cb144c7a 408 md_alg, (unsigned int) hash_len, hash, sig ) );
JMF 12:0071cb144c7a 409 }
JMF 12:0071cb144c7a 410
JMF 12:0071cb144c7a 411 static int rsa_alt_decrypt_wrap( void *ctx,
JMF 12:0071cb144c7a 412 const unsigned char *input, size_t ilen,
JMF 12:0071cb144c7a 413 unsigned char *output, size_t *olen, size_t osize,
JMF 12:0071cb144c7a 414 int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
JMF 12:0071cb144c7a 415 {
JMF 12:0071cb144c7a 416 mbedtls_rsa_alt_context *rsa_alt = (mbedtls_rsa_alt_context *) ctx;
JMF 12:0071cb144c7a 417
JMF 12:0071cb144c7a 418 ((void) f_rng);
JMF 12:0071cb144c7a 419 ((void) p_rng);
JMF 12:0071cb144c7a 420
JMF 12:0071cb144c7a 421 if( ilen != rsa_alt->key_len_func( rsa_alt->key ) )
JMF 12:0071cb144c7a 422 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
JMF 12:0071cb144c7a 423
JMF 12:0071cb144c7a 424 return( rsa_alt->decrypt_func( rsa_alt->key,
JMF 12:0071cb144c7a 425 MBEDTLS_RSA_PRIVATE, olen, input, output, osize ) );
JMF 12:0071cb144c7a 426 }
JMF 12:0071cb144c7a 427
JMF 12:0071cb144c7a 428 #if defined(MBEDTLS_RSA_C)
JMF 12:0071cb144c7a 429 static int rsa_alt_check_pair( const void *pub, const void *prv )
JMF 12:0071cb144c7a 430 {
JMF 12:0071cb144c7a 431 unsigned char sig[MBEDTLS_MPI_MAX_SIZE];
JMF 12:0071cb144c7a 432 unsigned char hash[32];
JMF 12:0071cb144c7a 433 size_t sig_len = 0;
JMF 12:0071cb144c7a 434 int ret;
JMF 12:0071cb144c7a 435
JMF 12:0071cb144c7a 436 if( rsa_alt_get_bitlen( prv ) != rsa_get_bitlen( pub ) )
JMF 12:0071cb144c7a 437 return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
JMF 12:0071cb144c7a 438
JMF 12:0071cb144c7a 439 memset( hash, 0x2a, sizeof( hash ) );
JMF 12:0071cb144c7a 440
JMF 12:0071cb144c7a 441 if( ( ret = rsa_alt_sign_wrap( (void *) prv, MBEDTLS_MD_NONE,
JMF 12:0071cb144c7a 442 hash, sizeof( hash ),
JMF 12:0071cb144c7a 443 sig, &sig_len, NULL, NULL ) ) != 0 )
JMF 12:0071cb144c7a 444 {
JMF 12:0071cb144c7a 445 return( ret );
JMF 12:0071cb144c7a 446 }
JMF 12:0071cb144c7a 447
JMF 12:0071cb144c7a 448 if( rsa_verify_wrap( (void *) pub, MBEDTLS_MD_NONE,
JMF 12:0071cb144c7a 449 hash, sizeof( hash ), sig, sig_len ) != 0 )
JMF 12:0071cb144c7a 450 {
JMF 12:0071cb144c7a 451 return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
JMF 12:0071cb144c7a 452 }
JMF 12:0071cb144c7a 453
JMF 12:0071cb144c7a 454 return( 0 );
JMF 12:0071cb144c7a 455 }
JMF 12:0071cb144c7a 456 #endif /* MBEDTLS_RSA_C */
JMF 12:0071cb144c7a 457
JMF 12:0071cb144c7a 458 static void *rsa_alt_alloc_wrap( void )
JMF 12:0071cb144c7a 459 {
JMF 12:0071cb144c7a 460 void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_rsa_alt_context ) );
JMF 12:0071cb144c7a 461
JMF 12:0071cb144c7a 462 if( ctx != NULL )
JMF 12:0071cb144c7a 463 memset( ctx, 0, sizeof( mbedtls_rsa_alt_context ) );
JMF 12:0071cb144c7a 464
JMF 12:0071cb144c7a 465 return( ctx );
JMF 12:0071cb144c7a 466 }
JMF 12:0071cb144c7a 467
JMF 12:0071cb144c7a 468 static void rsa_alt_free_wrap( void *ctx )
JMF 12:0071cb144c7a 469 {
JMF 12:0071cb144c7a 470 mbedtls_zeroize( ctx, sizeof( mbedtls_rsa_alt_context ) );
JMF 12:0071cb144c7a 471 mbedtls_free( ctx );
JMF 12:0071cb144c7a 472 }
JMF 12:0071cb144c7a 473
JMF 12:0071cb144c7a 474 const mbedtls_pk_info_t mbedtls_rsa_alt_info = {
JMF 12:0071cb144c7a 475 MBEDTLS_PK_RSA_ALT,
JMF 12:0071cb144c7a 476 "RSA-alt",
JMF 12:0071cb144c7a 477 rsa_alt_get_bitlen,
JMF 12:0071cb144c7a 478 rsa_alt_can_do,
JMF 12:0071cb144c7a 479 NULL,
JMF 12:0071cb144c7a 480 rsa_alt_sign_wrap,
JMF 12:0071cb144c7a 481 rsa_alt_decrypt_wrap,
JMF 12:0071cb144c7a 482 NULL,
JMF 12:0071cb144c7a 483 #if defined(MBEDTLS_RSA_C)
JMF 12:0071cb144c7a 484 rsa_alt_check_pair,
JMF 12:0071cb144c7a 485 #else
JMF 12:0071cb144c7a 486 NULL,
JMF 12:0071cb144c7a 487 #endif
JMF 12:0071cb144c7a 488 rsa_alt_alloc_wrap,
JMF 12:0071cb144c7a 489 rsa_alt_free_wrap,
JMF 12:0071cb144c7a 490 NULL,
JMF 12:0071cb144c7a 491 };
JMF 12:0071cb144c7a 492
JMF 12:0071cb144c7a 493 #endif /* MBEDTLS_PK_RSA_ALT_SUPPORT */
JMF 12:0071cb144c7a 494
JMF 12:0071cb144c7a 495 #endif /* MBEDTLS_PK_C */