Timothy Beight / Mbed 2 deprecated 6_songs-from-the-cloud

This is a fork due to permission issues

Dependencies:   mbed Socket lwip-eth lwip-sys lwip

Fork of 6_songs-from-the-cloud by MakingMusicWorkshop

mbed-client/mbedtls/source/pkcs11.c@1:0ddbe2d3319c, 2016-05-19 (annotated)

Committer:
timbeight
Date:
Thu May 19 16:02:10 2016 +0000
Revision:
1:0ddbe2d3319c
Parent:
0:f7c60d3e7b8a 
This is my first commit while in the class.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
maclobdell 0:f7c60d3e7b8a 1 /**
maclobdell 0:f7c60d3e7b8a 2 * \file pkcs11.c
maclobdell 0:f7c60d3e7b8a 3 *
maclobdell 0:f7c60d3e7b8a 4 * \brief Wrapper for PKCS#11 library libpkcs11-helper
maclobdell 0:f7c60d3e7b8a 5 *
maclobdell 0:f7c60d3e7b8a 6 * \author Adriaan de Jong <dejong@fox-it.com>
maclobdell 0:f7c60d3e7b8a 7 *
maclobdell 0:f7c60d3e7b8a 8 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
maclobdell 0:f7c60d3e7b8a 9 * SPDX-License-Identifier: Apache-2.0
maclobdell 0:f7c60d3e7b8a 10 *
maclobdell 0:f7c60d3e7b8a 11 * Licensed under the Apache License, Version 2.0 (the "License"); you may
maclobdell 0:f7c60d3e7b8a 12 * not use this file except in compliance with the License.
maclobdell 0:f7c60d3e7b8a 13 * You may obtain a copy of the License at
maclobdell 0:f7c60d3e7b8a 14 *
maclobdell 0:f7c60d3e7b8a 15 * http://www.apache.org/licenses/LICENSE-2.0
maclobdell 0:f7c60d3e7b8a 16 *
maclobdell 0:f7c60d3e7b8a 17 * Unless required by applicable law or agreed to in writing, software
maclobdell 0:f7c60d3e7b8a 18 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
maclobdell 0:f7c60d3e7b8a 19 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
maclobdell 0:f7c60d3e7b8a 20 * See the License for the specific language governing permissions and
maclobdell 0:f7c60d3e7b8a 21 * limitations under the License.
maclobdell 0:f7c60d3e7b8a 22 *
maclobdell 0:f7c60d3e7b8a 23 * This file is part of mbed TLS (https://tls.mbed.org)
maclobdell 0:f7c60d3e7b8a 24 */
maclobdell 0:f7c60d3e7b8a 25
maclobdell 0:f7c60d3e7b8a 26 #include "mbedtls/pkcs11.h"
maclobdell 0:f7c60d3e7b8a 27
maclobdell 0:f7c60d3e7b8a 28 #if defined(MBEDTLS_PKCS11_C)
maclobdell 0:f7c60d3e7b8a 29
maclobdell 0:f7c60d3e7b8a 30 #include "mbedtls/md.h"
maclobdell 0:f7c60d3e7b8a 31 #include "mbedtls/oid.h"
maclobdell 0:f7c60d3e7b8a 32 #include "mbedtls/x509_crt.h"
maclobdell 0:f7c60d3e7b8a 33
maclobdell 0:f7c60d3e7b8a 34 #if defined(MBEDTLS_PLATFORM_C)
maclobdell 0:f7c60d3e7b8a 35 #include "mbedtls/platform.h"
maclobdell 0:f7c60d3e7b8a 36 #else
maclobdell 0:f7c60d3e7b8a 37 #include <stdlib.h>
maclobdell 0:f7c60d3e7b8a 38 #define mbedtls_calloc calloc
maclobdell 0:f7c60d3e7b8a 39 #define mbedtls_free free
maclobdell 0:f7c60d3e7b8a 40 #endif
maclobdell 0:f7c60d3e7b8a 41
maclobdell 0:f7c60d3e7b8a 42 #include <string.h>
maclobdell 0:f7c60d3e7b8a 43
maclobdell 0:f7c60d3e7b8a 44 void mbedtls_pkcs11_init( mbedtls_pkcs11_context *ctx )
maclobdell 0:f7c60d3e7b8a 45 {
maclobdell 0:f7c60d3e7b8a 46 memset( ctx, 0, sizeof( mbedtls_pkcs11_context ) );
maclobdell 0:f7c60d3e7b8a 47 }
maclobdell 0:f7c60d3e7b8a 48
maclobdell 0:f7c60d3e7b8a 49 int mbedtls_pkcs11_x509_cert_bind( mbedtls_x509_crt *cert, pkcs11h_certificate_t pkcs11_cert )
maclobdell 0:f7c60d3e7b8a 50 {
maclobdell 0:f7c60d3e7b8a 51 int ret = 1;
maclobdell 0:f7c60d3e7b8a 52 unsigned char *cert_blob = NULL;
maclobdell 0:f7c60d3e7b8a 53 size_t cert_blob_size = 0;
maclobdell 0:f7c60d3e7b8a 54
maclobdell 0:f7c60d3e7b8a 55 if( cert == NULL )
maclobdell 0:f7c60d3e7b8a 56 {
maclobdell 0:f7c60d3e7b8a 57 ret = 2;
maclobdell 0:f7c60d3e7b8a 58 goto cleanup;
maclobdell 0:f7c60d3e7b8a 59 }
maclobdell 0:f7c60d3e7b8a 60
maclobdell 0:f7c60d3e7b8a 61 if( pkcs11h_certificate_getCertificateBlob( pkcs11_cert, NULL,
maclobdell 0:f7c60d3e7b8a 62 &cert_blob_size ) != CKR_OK )
maclobdell 0:f7c60d3e7b8a 63 {
maclobdell 0:f7c60d3e7b8a 64 ret = 3;
maclobdell 0:f7c60d3e7b8a 65 goto cleanup;
maclobdell 0:f7c60d3e7b8a 66 }
maclobdell 0:f7c60d3e7b8a 67
maclobdell 0:f7c60d3e7b8a 68 cert_blob = mbedtls_calloc( 1, cert_blob_size );
maclobdell 0:f7c60d3e7b8a 69 if( NULL == cert_blob )
maclobdell 0:f7c60d3e7b8a 70 {
maclobdell 0:f7c60d3e7b8a 71 ret = 4;
maclobdell 0:f7c60d3e7b8a 72 goto cleanup;
maclobdell 0:f7c60d3e7b8a 73 }
maclobdell 0:f7c60d3e7b8a 74
maclobdell 0:f7c60d3e7b8a 75 if( pkcs11h_certificate_getCertificateBlob( pkcs11_cert, cert_blob,
maclobdell 0:f7c60d3e7b8a 76 &cert_blob_size ) != CKR_OK )
maclobdell 0:f7c60d3e7b8a 77 {
maclobdell 0:f7c60d3e7b8a 78 ret = 5;
maclobdell 0:f7c60d3e7b8a 79 goto cleanup;
maclobdell 0:f7c60d3e7b8a 80 }
maclobdell 0:f7c60d3e7b8a 81
maclobdell 0:f7c60d3e7b8a 82 if( 0 != mbedtls_x509_crt_parse( cert, cert_blob, cert_blob_size ) )
maclobdell 0:f7c60d3e7b8a 83 {
maclobdell 0:f7c60d3e7b8a 84 ret = 6;
maclobdell 0:f7c60d3e7b8a 85 goto cleanup;
maclobdell 0:f7c60d3e7b8a 86 }
maclobdell 0:f7c60d3e7b8a 87
maclobdell 0:f7c60d3e7b8a 88 ret = 0;
maclobdell 0:f7c60d3e7b8a 89
maclobdell 0:f7c60d3e7b8a 90 cleanup:
maclobdell 0:f7c60d3e7b8a 91 if( NULL != cert_blob )
maclobdell 0:f7c60d3e7b8a 92 mbedtls_free( cert_blob );
maclobdell 0:f7c60d3e7b8a 93
maclobdell 0:f7c60d3e7b8a 94 return( ret );
maclobdell 0:f7c60d3e7b8a 95 }
maclobdell 0:f7c60d3e7b8a 96
maclobdell 0:f7c60d3e7b8a 97
maclobdell 0:f7c60d3e7b8a 98 int mbedtls_pkcs11_priv_key_bind( mbedtls_pkcs11_context *priv_key,
maclobdell 0:f7c60d3e7b8a 99 pkcs11h_certificate_t pkcs11_cert )
maclobdell 0:f7c60d3e7b8a 100 {
maclobdell 0:f7c60d3e7b8a 101 int ret = 1;
maclobdell 0:f7c60d3e7b8a 102 mbedtls_x509_crt cert;
maclobdell 0:f7c60d3e7b8a 103
maclobdell 0:f7c60d3e7b8a 104 mbedtls_x509_crt_init( &cert );
maclobdell 0:f7c60d3e7b8a 105
maclobdell 0:f7c60d3e7b8a 106 if( priv_key == NULL )
maclobdell 0:f7c60d3e7b8a 107 goto cleanup;
maclobdell 0:f7c60d3e7b8a 108
maclobdell 0:f7c60d3e7b8a 109 if( 0 != mbedtls_pkcs11_x509_cert_bind( &cert, pkcs11_cert ) )
maclobdell 0:f7c60d3e7b8a 110 goto cleanup;
maclobdell 0:f7c60d3e7b8a 111
maclobdell 0:f7c60d3e7b8a 112 priv_key->len = mbedtls_pk_get_len( &cert.pk );
maclobdell 0:f7c60d3e7b8a 113 priv_key->pkcs11h_cert = pkcs11_cert;
maclobdell 0:f7c60d3e7b8a 114
maclobdell 0:f7c60d3e7b8a 115 ret = 0;
maclobdell 0:f7c60d3e7b8a 116
maclobdell 0:f7c60d3e7b8a 117 cleanup:
maclobdell 0:f7c60d3e7b8a 118 mbedtls_x509_crt_free( &cert );
maclobdell 0:f7c60d3e7b8a 119
maclobdell 0:f7c60d3e7b8a 120 return( ret );
maclobdell 0:f7c60d3e7b8a 121 }
maclobdell 0:f7c60d3e7b8a 122
maclobdell 0:f7c60d3e7b8a 123 void mbedtls_pkcs11_priv_key_free( mbedtls_pkcs11_context *priv_key )
maclobdell 0:f7c60d3e7b8a 124 {
maclobdell 0:f7c60d3e7b8a 125 if( NULL != priv_key )
maclobdell 0:f7c60d3e7b8a 126 pkcs11h_certificate_freeCertificate( priv_key->pkcs11h_cert );
maclobdell 0:f7c60d3e7b8a 127 }
maclobdell 0:f7c60d3e7b8a 128
maclobdell 0:f7c60d3e7b8a 129 int mbedtls_pkcs11_decrypt( mbedtls_pkcs11_context *ctx,
maclobdell 0:f7c60d3e7b8a 130 int mode, size_t *olen,
maclobdell 0:f7c60d3e7b8a 131 const unsigned char *input,
maclobdell 0:f7c60d3e7b8a 132 unsigned char *output,
maclobdell 0:f7c60d3e7b8a 133 size_t output_max_len )
maclobdell 0:f7c60d3e7b8a 134 {
maclobdell 0:f7c60d3e7b8a 135 size_t input_len, output_len;
maclobdell 0:f7c60d3e7b8a 136
maclobdell 0:f7c60d3e7b8a 137 if( NULL == ctx )
maclobdell 0:f7c60d3e7b8a 138 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
maclobdell 0:f7c60d3e7b8a 139
maclobdell 0:f7c60d3e7b8a 140 if( MBEDTLS_RSA_PRIVATE != mode )
maclobdell 0:f7c60d3e7b8a 141 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
maclobdell 0:f7c60d3e7b8a 142
maclobdell 0:f7c60d3e7b8a 143 output_len = input_len = ctx->len;
maclobdell 0:f7c60d3e7b8a 144
maclobdell 0:f7c60d3e7b8a 145 if( input_len < 16 || input_len > output_max_len )
maclobdell 0:f7c60d3e7b8a 146 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
maclobdell 0:f7c60d3e7b8a 147
maclobdell 0:f7c60d3e7b8a 148 /* Determine size of output buffer */
maclobdell 0:f7c60d3e7b8a 149 if( pkcs11h_certificate_decryptAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, input,
maclobdell 0:f7c60d3e7b8a 150 input_len, NULL, &output_len ) != CKR_OK )
maclobdell 0:f7c60d3e7b8a 151 {
maclobdell 0:f7c60d3e7b8a 152 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
maclobdell 0:f7c60d3e7b8a 153 }
maclobdell 0:f7c60d3e7b8a 154
maclobdell 0:f7c60d3e7b8a 155 if( output_len > output_max_len )
maclobdell 0:f7c60d3e7b8a 156 return( MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE );
maclobdell 0:f7c60d3e7b8a 157
maclobdell 0:f7c60d3e7b8a 158 if( pkcs11h_certificate_decryptAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, input,
maclobdell 0:f7c60d3e7b8a 159 input_len, output, &output_len ) != CKR_OK )
maclobdell 0:f7c60d3e7b8a 160 {
maclobdell 0:f7c60d3e7b8a 161 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
maclobdell 0:f7c60d3e7b8a 162 }
maclobdell 0:f7c60d3e7b8a 163 *olen = output_len;
maclobdell 0:f7c60d3e7b8a 164 return( 0 );
maclobdell 0:f7c60d3e7b8a 165 }
maclobdell 0:f7c60d3e7b8a 166
maclobdell 0:f7c60d3e7b8a 167 int mbedtls_pkcs11_sign( mbedtls_pkcs11_context *ctx,
maclobdell 0:f7c60d3e7b8a 168 int mode,
maclobdell 0:f7c60d3e7b8a 169 mbedtls_md_type_t md_alg,
maclobdell 0:f7c60d3e7b8a 170 unsigned int hashlen,
maclobdell 0:f7c60d3e7b8a 171 const unsigned char *hash,
maclobdell 0:f7c60d3e7b8a 172 unsigned char *sig )
maclobdell 0:f7c60d3e7b8a 173 {
maclobdell 0:f7c60d3e7b8a 174 size_t sig_len = 0, asn_len = 0, oid_size = 0;
maclobdell 0:f7c60d3e7b8a 175 unsigned char *p = sig;
maclobdell 0:f7c60d3e7b8a 176 const char *oid;
maclobdell 0:f7c60d3e7b8a 177
maclobdell 0:f7c60d3e7b8a 178 if( NULL == ctx )
maclobdell 0:f7c60d3e7b8a 179 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
maclobdell 0:f7c60d3e7b8a 180
maclobdell 0:f7c60d3e7b8a 181 if( MBEDTLS_RSA_PRIVATE != mode )
maclobdell 0:f7c60d3e7b8a 182 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
maclobdell 0:f7c60d3e7b8a 183
maclobdell 0:f7c60d3e7b8a 184 if( md_alg != MBEDTLS_MD_NONE )
maclobdell 0:f7c60d3e7b8a 185 {
maclobdell 0:f7c60d3e7b8a 186 const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( md_alg );
maclobdell 0:f7c60d3e7b8a 187 if( md_info == NULL )
maclobdell 0:f7c60d3e7b8a 188 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
maclobdell 0:f7c60d3e7b8a 189
maclobdell 0:f7c60d3e7b8a 190 if( mbedtls_oid_get_oid_by_md( md_alg, &oid, &oid_size ) != 0 )
maclobdell 0:f7c60d3e7b8a 191 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
maclobdell 0:f7c60d3e7b8a 192
maclobdell 0:f7c60d3e7b8a 193 hashlen = mbedtls_md_get_size( md_info );
maclobdell 0:f7c60d3e7b8a 194 asn_len = 10 + oid_size;
maclobdell 0:f7c60d3e7b8a 195 }
maclobdell 0:f7c60d3e7b8a 196
maclobdell 0:f7c60d3e7b8a 197 sig_len = ctx->len;
maclobdell 0:f7c60d3e7b8a 198 if( hashlen > sig_len || asn_len > sig_len ||
maclobdell 0:f7c60d3e7b8a 199 hashlen + asn_len > sig_len )
maclobdell 0:f7c60d3e7b8a 200 {
maclobdell 0:f7c60d3e7b8a 201 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
maclobdell 0:f7c60d3e7b8a 202 }
maclobdell 0:f7c60d3e7b8a 203
maclobdell 0:f7c60d3e7b8a 204 if( md_alg != MBEDTLS_MD_NONE )
maclobdell 0:f7c60d3e7b8a 205 {
maclobdell 0:f7c60d3e7b8a 206 /*
maclobdell 0:f7c60d3e7b8a 207 * DigestInfo ::= SEQUENCE {
maclobdell 0:f7c60d3e7b8a 208 * digestAlgorithm DigestAlgorithmIdentifier,
maclobdell 0:f7c60d3e7b8a 209 * digest Digest }
maclobdell 0:f7c60d3e7b8a 210 *
maclobdell 0:f7c60d3e7b8a 211 * DigestAlgorithmIdentifier ::= AlgorithmIdentifier
maclobdell 0:f7c60d3e7b8a 212 *
maclobdell 0:f7c60d3e7b8a 213 * Digest ::= OCTET STRING
maclobdell 0:f7c60d3e7b8a 214 */
maclobdell 0:f7c60d3e7b8a 215 *p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED;
maclobdell 0:f7c60d3e7b8a 216 *p++ = (unsigned char) ( 0x08 + oid_size + hashlen );
maclobdell 0:f7c60d3e7b8a 217 *p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED;
maclobdell 0:f7c60d3e7b8a 218 *p++ = (unsigned char) ( 0x04 + oid_size );
maclobdell 0:f7c60d3e7b8a 219 *p++ = MBEDTLS_ASN1_OID;
maclobdell 0:f7c60d3e7b8a 220 *p++ = oid_size & 0xFF;
maclobdell 0:f7c60d3e7b8a 221 memcpy( p, oid, oid_size );
maclobdell 0:f7c60d3e7b8a 222 p += oid_size;
maclobdell 0:f7c60d3e7b8a 223 *p++ = MBEDTLS_ASN1_NULL;
maclobdell 0:f7c60d3e7b8a 224 *p++ = 0x00;
maclobdell 0:f7c60d3e7b8a 225 *p++ = MBEDTLS_ASN1_OCTET_STRING;
maclobdell 0:f7c60d3e7b8a 226 *p++ = hashlen;
maclobdell 0:f7c60d3e7b8a 227 }
maclobdell 0:f7c60d3e7b8a 228
maclobdell 0:f7c60d3e7b8a 229 memcpy( p, hash, hashlen );
maclobdell 0:f7c60d3e7b8a 230
maclobdell 0:f7c60d3e7b8a 231 if( pkcs11h_certificate_signAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, sig,
maclobdell 0:f7c60d3e7b8a 232 asn_len + hashlen, sig, &sig_len ) != CKR_OK )
maclobdell 0:f7c60d3e7b8a 233 {
maclobdell 0:f7c60d3e7b8a 234 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
maclobdell 0:f7c60d3e7b8a 235 }
maclobdell 0:f7c60d3e7b8a 236
maclobdell 0:f7c60d3e7b8a 237 return( 0 );
maclobdell 0:f7c60d3e7b8a 238 }
maclobdell 0:f7c60d3e7b8a 239
maclobdell 0:f7c60d3e7b8a 240 #endif /* defined(MBEDTLS_PKCS11_C) */