Marco Zecchini / Mbed OS Example_RTOS

Rtos API example

mbed-os/features/mbedtls/src/pkcs5.c@0:9fca2b23d0ba, 2019-02-23 (annotated)

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

Who changed what in which revision?

UserRevisionLine numberNew contents of line
marcozecchini 0:9fca2b23d0ba 1 /**
marcozecchini 0:9fca2b23d0ba 2 * \file pkcs5.c
marcozecchini 0:9fca2b23d0ba 3 *
marcozecchini 0:9fca2b23d0ba 4 * \brief PKCS#5 functions
marcozecchini 0:9fca2b23d0ba 5 *
marcozecchini 0:9fca2b23d0ba 6 * \author Mathias Olsson <mathias@kompetensum.com>
marcozecchini 0:9fca2b23d0ba 7 *
marcozecchini 0:9fca2b23d0ba 8 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
marcozecchini 0:9fca2b23d0ba 9 * SPDX-License-Identifier: Apache-2.0
marcozecchini 0:9fca2b23d0ba 10 *
marcozecchini 0:9fca2b23d0ba 11 * Licensed under the Apache License, Version 2.0 (the "License"); you may
marcozecchini 0:9fca2b23d0ba 12 * not use this file except in compliance with the License.
marcozecchini 0:9fca2b23d0ba 13 * You may obtain a copy of the License at
marcozecchini 0:9fca2b23d0ba 14 *
marcozecchini 0:9fca2b23d0ba 15 * http://www.apache.org/licenses/LICENSE-2.0
marcozecchini 0:9fca2b23d0ba 16 *
marcozecchini 0:9fca2b23d0ba 17 * Unless required by applicable law or agreed to in writing, software
marcozecchini 0:9fca2b23d0ba 18 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
marcozecchini 0:9fca2b23d0ba 19 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
marcozecchini 0:9fca2b23d0ba 20 * See the License for the specific language governing permissions and
marcozecchini 0:9fca2b23d0ba 21 * limitations under the License.
marcozecchini 0:9fca2b23d0ba 22 *
marcozecchini 0:9fca2b23d0ba 23 * This file is part of mbed TLS (https://tls.mbed.org)
marcozecchini 0:9fca2b23d0ba 24 */
marcozecchini 0:9fca2b23d0ba 25 /*
marcozecchini 0:9fca2b23d0ba 26 * PKCS#5 includes PBKDF2 and more
marcozecchini 0:9fca2b23d0ba 27 *
marcozecchini 0:9fca2b23d0ba 28 * http://tools.ietf.org/html/rfc2898 (Specification)
marcozecchini 0:9fca2b23d0ba 29 * http://tools.ietf.org/html/rfc6070 (Test vectors)
marcozecchini 0:9fca2b23d0ba 30 */
marcozecchini 0:9fca2b23d0ba 31
marcozecchini 0:9fca2b23d0ba 32 #if !defined(MBEDTLS_CONFIG_FILE)
marcozecchini 0:9fca2b23d0ba 33 #include "mbedtls/config.h"
marcozecchini 0:9fca2b23d0ba 34 #else
marcozecchini 0:9fca2b23d0ba 35 #include MBEDTLS_CONFIG_FILE
marcozecchini 0:9fca2b23d0ba 36 #endif
marcozecchini 0:9fca2b23d0ba 37
marcozecchini 0:9fca2b23d0ba 38 #if defined(MBEDTLS_PKCS5_C)
marcozecchini 0:9fca2b23d0ba 39
marcozecchini 0:9fca2b23d0ba 40 #include "mbedtls/pkcs5.h"
marcozecchini 0:9fca2b23d0ba 41 #include "mbedtls/asn1.h"
marcozecchini 0:9fca2b23d0ba 42 #include "mbedtls/cipher.h"
marcozecchini 0:9fca2b23d0ba 43 #include "mbedtls/oid.h"
marcozecchini 0:9fca2b23d0ba 44
marcozecchini 0:9fca2b23d0ba 45 #include <string.h>
marcozecchini 0:9fca2b23d0ba 46
marcozecchini 0:9fca2b23d0ba 47 #if defined(MBEDTLS_PLATFORM_C)
marcozecchini 0:9fca2b23d0ba 48 #include "mbedtls/platform.h"
marcozecchini 0:9fca2b23d0ba 49 #else
marcozecchini 0:9fca2b23d0ba 50 #include <stdio.h>
marcozecchini 0:9fca2b23d0ba 51 #define mbedtls_printf printf
marcozecchini 0:9fca2b23d0ba 52 #endif
marcozecchini 0:9fca2b23d0ba 53
marcozecchini 0:9fca2b23d0ba 54 static int pkcs5_parse_pbkdf2_params( const mbedtls_asn1_buf *params,
marcozecchini 0:9fca2b23d0ba 55 mbedtls_asn1_buf *salt, int *iterations,
marcozecchini 0:9fca2b23d0ba 56 int *keylen, mbedtls_md_type_t *md_type )
marcozecchini 0:9fca2b23d0ba 57 {
marcozecchini 0:9fca2b23d0ba 58 int ret;
marcozecchini 0:9fca2b23d0ba 59 mbedtls_asn1_buf prf_alg_oid;
marcozecchini 0:9fca2b23d0ba 60 unsigned char *p = params->p;
marcozecchini 0:9fca2b23d0ba 61 const unsigned char *end = params->p + params->len;
marcozecchini 0:9fca2b23d0ba 62
marcozecchini 0:9fca2b23d0ba 63 if( params->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) )
marcozecchini 0:9fca2b23d0ba 64 return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT +
marcozecchini 0:9fca2b23d0ba 65 MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
marcozecchini 0:9fca2b23d0ba 66 /*
marcozecchini 0:9fca2b23d0ba 67 * PBKDF2-params ::= SEQUENCE {
marcozecchini 0:9fca2b23d0ba 68 * salt OCTET STRING,
marcozecchini 0:9fca2b23d0ba 69 * iterationCount INTEGER,
marcozecchini 0:9fca2b23d0ba 70 * keyLength INTEGER OPTIONAL
marcozecchini 0:9fca2b23d0ba 71 * prf AlgorithmIdentifier DEFAULT algid-hmacWithSHA1
marcozecchini 0:9fca2b23d0ba 72 * }
marcozecchini 0:9fca2b23d0ba 73 *
marcozecchini 0:9fca2b23d0ba 74 */
marcozecchini 0:9fca2b23d0ba 75 if( ( ret = mbedtls_asn1_get_tag( &p, end, &salt->len, MBEDTLS_ASN1_OCTET_STRING ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 76 return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret );
marcozecchini 0:9fca2b23d0ba 77
marcozecchini 0:9fca2b23d0ba 78 salt->p = p;
marcozecchini 0:9fca2b23d0ba 79 p += salt->len;
marcozecchini 0:9fca2b23d0ba 80
marcozecchini 0:9fca2b23d0ba 81 if( ( ret = mbedtls_asn1_get_int( &p, end, iterations ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 82 return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret );
marcozecchini 0:9fca2b23d0ba 83
marcozecchini 0:9fca2b23d0ba 84 if( p == end )
marcozecchini 0:9fca2b23d0ba 85 return( 0 );
marcozecchini 0:9fca2b23d0ba 86
marcozecchini 0:9fca2b23d0ba 87 if( ( ret = mbedtls_asn1_get_int( &p, end, keylen ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 88 {
marcozecchini 0:9fca2b23d0ba 89 if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
marcozecchini 0:9fca2b23d0ba 90 return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret );
marcozecchini 0:9fca2b23d0ba 91 }
marcozecchini 0:9fca2b23d0ba 92
marcozecchini 0:9fca2b23d0ba 93 if( p == end )
marcozecchini 0:9fca2b23d0ba 94 return( 0 );
marcozecchini 0:9fca2b23d0ba 95
marcozecchini 0:9fca2b23d0ba 96 if( ( ret = mbedtls_asn1_get_alg_null( &p, end, &prf_alg_oid ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 97 return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret );
marcozecchini 0:9fca2b23d0ba 98
marcozecchini 0:9fca2b23d0ba 99 if( MBEDTLS_OID_CMP( MBEDTLS_OID_HMAC_SHA1, &prf_alg_oid ) != 0 )
marcozecchini 0:9fca2b23d0ba 100 return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE );
marcozecchini 0:9fca2b23d0ba 101
marcozecchini 0:9fca2b23d0ba 102 *md_type = MBEDTLS_MD_SHA1;
marcozecchini 0:9fca2b23d0ba 103
marcozecchini 0:9fca2b23d0ba 104 if( p != end )
marcozecchini 0:9fca2b23d0ba 105 return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT +
marcozecchini 0:9fca2b23d0ba 106 MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
marcozecchini 0:9fca2b23d0ba 107
marcozecchini 0:9fca2b23d0ba 108 return( 0 );
marcozecchini 0:9fca2b23d0ba 109 }
marcozecchini 0:9fca2b23d0ba 110
marcozecchini 0:9fca2b23d0ba 111 int mbedtls_pkcs5_pbes2( const mbedtls_asn1_buf *pbe_params, int mode,
marcozecchini 0:9fca2b23d0ba 112 const unsigned char *pwd, size_t pwdlen,
marcozecchini 0:9fca2b23d0ba 113 const unsigned char *data, size_t datalen,
marcozecchini 0:9fca2b23d0ba 114 unsigned char *output )
marcozecchini 0:9fca2b23d0ba 115 {
marcozecchini 0:9fca2b23d0ba 116 int ret, iterations = 0, keylen = 0;
marcozecchini 0:9fca2b23d0ba 117 unsigned char *p, *end;
marcozecchini 0:9fca2b23d0ba 118 mbedtls_asn1_buf kdf_alg_oid, enc_scheme_oid, kdf_alg_params, enc_scheme_params;
marcozecchini 0:9fca2b23d0ba 119 mbedtls_asn1_buf salt;
marcozecchini 0:9fca2b23d0ba 120 mbedtls_md_type_t md_type = MBEDTLS_MD_SHA1;
marcozecchini 0:9fca2b23d0ba 121 unsigned char key[32], iv[32];
marcozecchini 0:9fca2b23d0ba 122 size_t olen = 0;
marcozecchini 0:9fca2b23d0ba 123 const mbedtls_md_info_t *md_info;
marcozecchini 0:9fca2b23d0ba 124 const mbedtls_cipher_info_t *cipher_info;
marcozecchini 0:9fca2b23d0ba 125 mbedtls_md_context_t md_ctx;
marcozecchini 0:9fca2b23d0ba 126 mbedtls_cipher_type_t cipher_alg;
marcozecchini 0:9fca2b23d0ba 127 mbedtls_cipher_context_t cipher_ctx;
marcozecchini 0:9fca2b23d0ba 128
marcozecchini 0:9fca2b23d0ba 129 p = pbe_params->p;
marcozecchini 0:9fca2b23d0ba 130 end = p + pbe_params->len;
marcozecchini 0:9fca2b23d0ba 131
marcozecchini 0:9fca2b23d0ba 132 /*
marcozecchini 0:9fca2b23d0ba 133 * PBES2-params ::= SEQUENCE {
marcozecchini 0:9fca2b23d0ba 134 * keyDerivationFunc AlgorithmIdentifier {{PBES2-KDFs}},
marcozecchini 0:9fca2b23d0ba 135 * encryptionScheme AlgorithmIdentifier {{PBES2-Encs}}
marcozecchini 0:9fca2b23d0ba 136 * }
marcozecchini 0:9fca2b23d0ba 137 */
marcozecchini 0:9fca2b23d0ba 138 if( pbe_params->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) )
marcozecchini 0:9fca2b23d0ba 139 return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT +
marcozecchini 0:9fca2b23d0ba 140 MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
marcozecchini 0:9fca2b23d0ba 141
marcozecchini 0:9fca2b23d0ba 142 if( ( ret = mbedtls_asn1_get_alg( &p, end, &kdf_alg_oid, &kdf_alg_params ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 143 return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret );
marcozecchini 0:9fca2b23d0ba 144
marcozecchini 0:9fca2b23d0ba 145 // Only PBKDF2 supported at the moment
marcozecchini 0:9fca2b23d0ba 146 //
marcozecchini 0:9fca2b23d0ba 147 if( MBEDTLS_OID_CMP( MBEDTLS_OID_PKCS5_PBKDF2, &kdf_alg_oid ) != 0 )
marcozecchini 0:9fca2b23d0ba 148 return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE );
marcozecchini 0:9fca2b23d0ba 149
marcozecchini 0:9fca2b23d0ba 150 if( ( ret = pkcs5_parse_pbkdf2_params( &kdf_alg_params,
marcozecchini 0:9fca2b23d0ba 151 &salt, &iterations, &keylen,
marcozecchini 0:9fca2b23d0ba 152 &md_type ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 153 {
marcozecchini 0:9fca2b23d0ba 154 return( ret );
marcozecchini 0:9fca2b23d0ba 155 }
marcozecchini 0:9fca2b23d0ba 156
marcozecchini 0:9fca2b23d0ba 157 md_info = mbedtls_md_info_from_type( md_type );
marcozecchini 0:9fca2b23d0ba 158 if( md_info == NULL )
marcozecchini 0:9fca2b23d0ba 159 return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE );
marcozecchini 0:9fca2b23d0ba 160
marcozecchini 0:9fca2b23d0ba 161 if( ( ret = mbedtls_asn1_get_alg( &p, end, &enc_scheme_oid,
marcozecchini 0:9fca2b23d0ba 162 &enc_scheme_params ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 163 {
marcozecchini 0:9fca2b23d0ba 164 return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret );
marcozecchini 0:9fca2b23d0ba 165 }
marcozecchini 0:9fca2b23d0ba 166
marcozecchini 0:9fca2b23d0ba 167 if( mbedtls_oid_get_cipher_alg( &enc_scheme_oid, &cipher_alg ) != 0 )
marcozecchini 0:9fca2b23d0ba 168 return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE );
marcozecchini 0:9fca2b23d0ba 169
marcozecchini 0:9fca2b23d0ba 170 cipher_info = mbedtls_cipher_info_from_type( cipher_alg );
marcozecchini 0:9fca2b23d0ba 171 if( cipher_info == NULL )
marcozecchini 0:9fca2b23d0ba 172 return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE );
marcozecchini 0:9fca2b23d0ba 173
marcozecchini 0:9fca2b23d0ba 174 /*
marcozecchini 0:9fca2b23d0ba 175 * The value of keylen from pkcs5_parse_pbkdf2_params() is ignored
marcozecchini 0:9fca2b23d0ba 176 * since it is optional and we don't know if it was set or not
marcozecchini 0:9fca2b23d0ba 177 */
marcozecchini 0:9fca2b23d0ba 178 keylen = cipher_info->key_bitlen / 8;
marcozecchini 0:9fca2b23d0ba 179
marcozecchini 0:9fca2b23d0ba 180 if( enc_scheme_params.tag != MBEDTLS_ASN1_OCTET_STRING ||
marcozecchini 0:9fca2b23d0ba 181 enc_scheme_params.len != cipher_info->iv_size )
marcozecchini 0:9fca2b23d0ba 182 {
marcozecchini 0:9fca2b23d0ba 183 return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT );
marcozecchini 0:9fca2b23d0ba 184 }
marcozecchini 0:9fca2b23d0ba 185
marcozecchini 0:9fca2b23d0ba 186 mbedtls_md_init( &md_ctx );
marcozecchini 0:9fca2b23d0ba 187 mbedtls_cipher_init( &cipher_ctx );
marcozecchini 0:9fca2b23d0ba 188
marcozecchini 0:9fca2b23d0ba 189 memcpy( iv, enc_scheme_params.p, enc_scheme_params.len );
marcozecchini 0:9fca2b23d0ba 190
marcozecchini 0:9fca2b23d0ba 191 if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 192 goto exit;
marcozecchini 0:9fca2b23d0ba 193
marcozecchini 0:9fca2b23d0ba 194 if( ( ret = mbedtls_pkcs5_pbkdf2_hmac( &md_ctx, pwd, pwdlen, salt.p, salt.len,
marcozecchini 0:9fca2b23d0ba 195 iterations, keylen, key ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 196 {
marcozecchini 0:9fca2b23d0ba 197 goto exit;
marcozecchini 0:9fca2b23d0ba 198 }
marcozecchini 0:9fca2b23d0ba 199
marcozecchini 0:9fca2b23d0ba 200 if( ( ret = mbedtls_cipher_setup( &cipher_ctx, cipher_info ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 201 goto exit;
marcozecchini 0:9fca2b23d0ba 202
marcozecchini 0:9fca2b23d0ba 203 if( ( ret = mbedtls_cipher_setkey( &cipher_ctx, key, 8 * keylen, (mbedtls_operation_t) mode ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 204 goto exit;
marcozecchini 0:9fca2b23d0ba 205
marcozecchini 0:9fca2b23d0ba 206 if( ( ret = mbedtls_cipher_crypt( &cipher_ctx, iv, enc_scheme_params.len,
marcozecchini 0:9fca2b23d0ba 207 data, datalen, output, &olen ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 208 ret = MBEDTLS_ERR_PKCS5_PASSWORD_MISMATCH;
marcozecchini 0:9fca2b23d0ba 209
marcozecchini 0:9fca2b23d0ba 210 exit:
marcozecchini 0:9fca2b23d0ba 211 mbedtls_md_free( &md_ctx );
marcozecchini 0:9fca2b23d0ba 212 mbedtls_cipher_free( &cipher_ctx );
marcozecchini 0:9fca2b23d0ba 213
marcozecchini 0:9fca2b23d0ba 214 return( ret );
marcozecchini 0:9fca2b23d0ba 215 }
marcozecchini 0:9fca2b23d0ba 216
marcozecchini 0:9fca2b23d0ba 217 int mbedtls_pkcs5_pbkdf2_hmac( mbedtls_md_context_t *ctx, const unsigned char *password,
marcozecchini 0:9fca2b23d0ba 218 size_t plen, const unsigned char *salt, size_t slen,
marcozecchini 0:9fca2b23d0ba 219 unsigned int iteration_count,
marcozecchini 0:9fca2b23d0ba 220 uint32_t key_length, unsigned char *output )
marcozecchini 0:9fca2b23d0ba 221 {
marcozecchini 0:9fca2b23d0ba 222 int ret, j;
marcozecchini 0:9fca2b23d0ba 223 unsigned int i;
marcozecchini 0:9fca2b23d0ba 224 unsigned char md1[MBEDTLS_MD_MAX_SIZE];
marcozecchini 0:9fca2b23d0ba 225 unsigned char work[MBEDTLS_MD_MAX_SIZE];
marcozecchini 0:9fca2b23d0ba 226 unsigned char md_size = mbedtls_md_get_size( ctx->md_info );
marcozecchini 0:9fca2b23d0ba 227 size_t use_len;
marcozecchini 0:9fca2b23d0ba 228 unsigned char *out_p = output;
marcozecchini 0:9fca2b23d0ba 229 unsigned char counter[4];
marcozecchini 0:9fca2b23d0ba 230
marcozecchini 0:9fca2b23d0ba 231 memset( counter, 0, 4 );
marcozecchini 0:9fca2b23d0ba 232 counter[3] = 1;
marcozecchini 0:9fca2b23d0ba 233
marcozecchini 0:9fca2b23d0ba 234 if( iteration_count > 0xFFFFFFFF )
marcozecchini 0:9fca2b23d0ba 235 return( MBEDTLS_ERR_PKCS5_BAD_INPUT_DATA );
marcozecchini 0:9fca2b23d0ba 236
marcozecchini 0:9fca2b23d0ba 237 while( key_length )
marcozecchini 0:9fca2b23d0ba 238 {
marcozecchini 0:9fca2b23d0ba 239 // U1 ends up in work
marcozecchini 0:9fca2b23d0ba 240 //
marcozecchini 0:9fca2b23d0ba 241 if( ( ret = mbedtls_md_hmac_starts( ctx, password, plen ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 242 return( ret );
marcozecchini 0:9fca2b23d0ba 243
marcozecchini 0:9fca2b23d0ba 244 if( ( ret = mbedtls_md_hmac_update( ctx, salt, slen ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 245 return( ret );
marcozecchini 0:9fca2b23d0ba 246
marcozecchini 0:9fca2b23d0ba 247 if( ( ret = mbedtls_md_hmac_update( ctx, counter, 4 ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 248 return( ret );
marcozecchini 0:9fca2b23d0ba 249
marcozecchini 0:9fca2b23d0ba 250 if( ( ret = mbedtls_md_hmac_finish( ctx, work ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 251 return( ret );
marcozecchini 0:9fca2b23d0ba 252
marcozecchini 0:9fca2b23d0ba 253 memcpy( md1, work, md_size );
marcozecchini 0:9fca2b23d0ba 254
marcozecchini 0:9fca2b23d0ba 255 for( i = 1; i < iteration_count; i++ )
marcozecchini 0:9fca2b23d0ba 256 {
marcozecchini 0:9fca2b23d0ba 257 // U2 ends up in md1
marcozecchini 0:9fca2b23d0ba 258 //
marcozecchini 0:9fca2b23d0ba 259 if( ( ret = mbedtls_md_hmac_starts( ctx, password, plen ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 260 return( ret );
marcozecchini 0:9fca2b23d0ba 261
marcozecchini 0:9fca2b23d0ba 262 if( ( ret = mbedtls_md_hmac_update( ctx, md1, md_size ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 263 return( ret );
marcozecchini 0:9fca2b23d0ba 264
marcozecchini 0:9fca2b23d0ba 265 if( ( ret = mbedtls_md_hmac_finish( ctx, md1 ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 266 return( ret );
marcozecchini 0:9fca2b23d0ba 267
marcozecchini 0:9fca2b23d0ba 268 // U1 xor U2
marcozecchini 0:9fca2b23d0ba 269 //
marcozecchini 0:9fca2b23d0ba 270 for( j = 0; j < md_size; j++ )
marcozecchini 0:9fca2b23d0ba 271 work[j] ^= md1[j];
marcozecchini 0:9fca2b23d0ba 272 }
marcozecchini 0:9fca2b23d0ba 273
marcozecchini 0:9fca2b23d0ba 274 use_len = ( key_length < md_size ) ? key_length : md_size;
marcozecchini 0:9fca2b23d0ba 275 memcpy( out_p, work, use_len );
marcozecchini 0:9fca2b23d0ba 276
marcozecchini 0:9fca2b23d0ba 277 key_length -= (uint32_t) use_len;
marcozecchini 0:9fca2b23d0ba 278 out_p += use_len;
marcozecchini 0:9fca2b23d0ba 279
marcozecchini 0:9fca2b23d0ba 280 for( i = 4; i > 0; i-- )
marcozecchini 0:9fca2b23d0ba 281 if( ++counter[i - 1] != 0 )
marcozecchini 0:9fca2b23d0ba 282 break;
marcozecchini 0:9fca2b23d0ba 283 }
marcozecchini 0:9fca2b23d0ba 284
marcozecchini 0:9fca2b23d0ba 285 return( 0 );
marcozecchini 0:9fca2b23d0ba 286 }
marcozecchini 0:9fca2b23d0ba 287
marcozecchini 0:9fca2b23d0ba 288 #if defined(MBEDTLS_SELF_TEST)
marcozecchini 0:9fca2b23d0ba 289
marcozecchini 0:9fca2b23d0ba 290 #if !defined(MBEDTLS_SHA1_C)
marcozecchini 0:9fca2b23d0ba 291 int mbedtls_pkcs5_self_test( int verbose )
marcozecchini 0:9fca2b23d0ba 292 {
marcozecchini 0:9fca2b23d0ba 293 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 294 mbedtls_printf( " PBKDF2 (SHA1): skipped\n\n" );
marcozecchini 0:9fca2b23d0ba 295
marcozecchini 0:9fca2b23d0ba 296 return( 0 );
marcozecchini 0:9fca2b23d0ba 297 }
marcozecchini 0:9fca2b23d0ba 298 #else
marcozecchini 0:9fca2b23d0ba 299
marcozecchini 0:9fca2b23d0ba 300 #define MAX_TESTS 6
marcozecchini 0:9fca2b23d0ba 301
marcozecchini 0:9fca2b23d0ba 302 static const size_t plen[MAX_TESTS] =
marcozecchini 0:9fca2b23d0ba 303 { 8, 8, 8, 24, 9 };
marcozecchini 0:9fca2b23d0ba 304
marcozecchini 0:9fca2b23d0ba 305 static const unsigned char password[MAX_TESTS][32] =
marcozecchini 0:9fca2b23d0ba 306 {
marcozecchini 0:9fca2b23d0ba 307 "password",
marcozecchini 0:9fca2b23d0ba 308 "password",
marcozecchini 0:9fca2b23d0ba 309 "password",
marcozecchini 0:9fca2b23d0ba 310 "passwordPASSWORDpassword",
marcozecchini 0:9fca2b23d0ba 311 "pass\0word",
marcozecchini 0:9fca2b23d0ba 312 };
marcozecchini 0:9fca2b23d0ba 313
marcozecchini 0:9fca2b23d0ba 314 static const size_t slen[MAX_TESTS] =
marcozecchini 0:9fca2b23d0ba 315 { 4, 4, 4, 36, 5 };
marcozecchini 0:9fca2b23d0ba 316
marcozecchini 0:9fca2b23d0ba 317 static const unsigned char salt[MAX_TESTS][40] =
marcozecchini 0:9fca2b23d0ba 318 {
marcozecchini 0:9fca2b23d0ba 319 "salt",
marcozecchini 0:9fca2b23d0ba 320 "salt",
marcozecchini 0:9fca2b23d0ba 321 "salt",
marcozecchini 0:9fca2b23d0ba 322 "saltSALTsaltSALTsaltSALTsaltSALTsalt",
marcozecchini 0:9fca2b23d0ba 323 "sa\0lt",
marcozecchini 0:9fca2b23d0ba 324 };
marcozecchini 0:9fca2b23d0ba 325
marcozecchini 0:9fca2b23d0ba 326 static const uint32_t it_cnt[MAX_TESTS] =
marcozecchini 0:9fca2b23d0ba 327 { 1, 2, 4096, 4096, 4096 };
marcozecchini 0:9fca2b23d0ba 328
marcozecchini 0:9fca2b23d0ba 329 static const uint32_t key_len[MAX_TESTS] =
marcozecchini 0:9fca2b23d0ba 330 { 20, 20, 20, 25, 16 };
marcozecchini 0:9fca2b23d0ba 331
marcozecchini 0:9fca2b23d0ba 332 static const unsigned char result_key[MAX_TESTS][32] =
marcozecchini 0:9fca2b23d0ba 333 {
marcozecchini 0:9fca2b23d0ba 334 { 0x0c, 0x60, 0xc8, 0x0f, 0x96, 0x1f, 0x0e, 0x71,
marcozecchini 0:9fca2b23d0ba 335 0xf3, 0xa9, 0xb5, 0x24, 0xaf, 0x60, 0x12, 0x06,
marcozecchini 0:9fca2b23d0ba 336 0x2f, 0xe0, 0x37, 0xa6 },
marcozecchini 0:9fca2b23d0ba 337 { 0xea, 0x6c, 0x01, 0x4d, 0xc7, 0x2d, 0x6f, 0x8c,
marcozecchini 0:9fca2b23d0ba 338 0xcd, 0x1e, 0xd9, 0x2a, 0xce, 0x1d, 0x41, 0xf0,
marcozecchini 0:9fca2b23d0ba 339 0xd8, 0xde, 0x89, 0x57 },
marcozecchini 0:9fca2b23d0ba 340 { 0x4b, 0x00, 0x79, 0x01, 0xb7, 0x65, 0x48, 0x9a,
marcozecchini 0:9fca2b23d0ba 341 0xbe, 0xad, 0x49, 0xd9, 0x26, 0xf7, 0x21, 0xd0,
marcozecchini 0:9fca2b23d0ba 342 0x65, 0xa4, 0x29, 0xc1 },
marcozecchini 0:9fca2b23d0ba 343 { 0x3d, 0x2e, 0xec, 0x4f, 0xe4, 0x1c, 0x84, 0x9b,
marcozecchini 0:9fca2b23d0ba 344 0x80, 0xc8, 0xd8, 0x36, 0x62, 0xc0, 0xe4, 0x4a,
marcozecchini 0:9fca2b23d0ba 345 0x8b, 0x29, 0x1a, 0x96, 0x4c, 0xf2, 0xf0, 0x70,
marcozecchini 0:9fca2b23d0ba 346 0x38 },
marcozecchini 0:9fca2b23d0ba 347 { 0x56, 0xfa, 0x6a, 0xa7, 0x55, 0x48, 0x09, 0x9d,
marcozecchini 0:9fca2b23d0ba 348 0xcc, 0x37, 0xd7, 0xf0, 0x34, 0x25, 0xe0, 0xc3 },
marcozecchini 0:9fca2b23d0ba 349 };
marcozecchini 0:9fca2b23d0ba 350
marcozecchini 0:9fca2b23d0ba 351 int mbedtls_pkcs5_self_test( int verbose )
marcozecchini 0:9fca2b23d0ba 352 {
marcozecchini 0:9fca2b23d0ba 353 mbedtls_md_context_t sha1_ctx;
marcozecchini 0:9fca2b23d0ba 354 const mbedtls_md_info_t *info_sha1;
marcozecchini 0:9fca2b23d0ba 355 int ret, i;
marcozecchini 0:9fca2b23d0ba 356 unsigned char key[64];
marcozecchini 0:9fca2b23d0ba 357
marcozecchini 0:9fca2b23d0ba 358 mbedtls_md_init( &sha1_ctx );
marcozecchini 0:9fca2b23d0ba 359
marcozecchini 0:9fca2b23d0ba 360 info_sha1 = mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 );
marcozecchini 0:9fca2b23d0ba 361 if( info_sha1 == NULL )
marcozecchini 0:9fca2b23d0ba 362 {
marcozecchini 0:9fca2b23d0ba 363 ret = 1;
marcozecchini 0:9fca2b23d0ba 364 goto exit;
marcozecchini 0:9fca2b23d0ba 365 }
marcozecchini 0:9fca2b23d0ba 366
marcozecchini 0:9fca2b23d0ba 367 if( ( ret = mbedtls_md_setup( &sha1_ctx, info_sha1, 1 ) ) != 0 )
marcozecchini 0:9fca2b23d0ba 368 {
marcozecchini 0:9fca2b23d0ba 369 ret = 1;
marcozecchini 0:9fca2b23d0ba 370 goto exit;
marcozecchini 0:9fca2b23d0ba 371 }
marcozecchini 0:9fca2b23d0ba 372
marcozecchini 0:9fca2b23d0ba 373 for( i = 0; i < MAX_TESTS; i++ )
marcozecchini 0:9fca2b23d0ba 374 {
marcozecchini 0:9fca2b23d0ba 375 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 376 mbedtls_printf( " PBKDF2 (SHA1) #%d: ", i );
marcozecchini 0:9fca2b23d0ba 377
marcozecchini 0:9fca2b23d0ba 378 ret = mbedtls_pkcs5_pbkdf2_hmac( &sha1_ctx, password[i], plen[i], salt[i],
marcozecchini 0:9fca2b23d0ba 379 slen[i], it_cnt[i], key_len[i], key );
marcozecchini 0:9fca2b23d0ba 380 if( ret != 0 ||
marcozecchini 0:9fca2b23d0ba 381 memcmp( result_key[i], key, key_len[i] ) != 0 )
marcozecchini 0:9fca2b23d0ba 382 {
marcozecchini 0:9fca2b23d0ba 383 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 384 mbedtls_printf( "failed\n" );
marcozecchini 0:9fca2b23d0ba 385
marcozecchini 0:9fca2b23d0ba 386 ret = 1;
marcozecchini 0:9fca2b23d0ba 387 goto exit;
marcozecchini 0:9fca2b23d0ba 388 }
marcozecchini 0:9fca2b23d0ba 389
marcozecchini 0:9fca2b23d0ba 390 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 391 mbedtls_printf( "passed\n" );
marcozecchini 0:9fca2b23d0ba 392 }
marcozecchini 0:9fca2b23d0ba 393
marcozecchini 0:9fca2b23d0ba 394 if( verbose != 0 )
marcozecchini 0:9fca2b23d0ba 395 mbedtls_printf( "\n" );
marcozecchini 0:9fca2b23d0ba 396
marcozecchini 0:9fca2b23d0ba 397 exit:
marcozecchini 0:9fca2b23d0ba 398 mbedtls_md_free( &sha1_ctx );
marcozecchini 0:9fca2b23d0ba 399
marcozecchini 0:9fca2b23d0ba 400 return( ret );
marcozecchini 0:9fca2b23d0ba 401 }
marcozecchini 0:9fca2b23d0ba 402 #endif /* MBEDTLS_SHA1_C */
marcozecchini 0:9fca2b23d0ba 403
marcozecchini 0:9fca2b23d0ba 404 #endif /* MBEDTLS_SELF_TEST */
marcozecchini 0:9fca2b23d0ba 405
marcozecchini 0:9fca2b23d0ba 406 #endif /* MBEDTLS_PKCS5_C */