Maxim nexpaq / nexpaq_dev

Preliminary main mbed library for nexpaq development

features/mbedtls/src/pkcs11.c@1:d96dbedaebdb, 2016-11-04 (annotated)

Committer:
nexpaq
Date:
Fri Nov 04 20:54:50 2016 +0000
Revision:
1:d96dbedaebdb
Parent:
0:6c56fb4bc5f0 
Removed extra directories for other platforms

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nexpaq 0:6c56fb4bc5f0 1 /**
nexpaq 0:6c56fb4bc5f0 2 * \file pkcs11.c
nexpaq 0:6c56fb4bc5f0 3 *
nexpaq 0:6c56fb4bc5f0 4 * \brief Wrapper for PKCS#11 library libpkcs11-helper
nexpaq 0:6c56fb4bc5f0 5 *
nexpaq 0:6c56fb4bc5f0 6 * \author Adriaan de Jong <dejong@fox-it.com>
nexpaq 0:6c56fb4bc5f0 7 *
nexpaq 0:6c56fb4bc5f0 8 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
nexpaq 0:6c56fb4bc5f0 9 * SPDX-License-Identifier: Apache-2.0
nexpaq 0:6c56fb4bc5f0 10 *
nexpaq 0:6c56fb4bc5f0 11 * Licensed under the Apache License, Version 2.0 (the "License"); you may
nexpaq 0:6c56fb4bc5f0 12 * not use this file except in compliance with the License.
nexpaq 0:6c56fb4bc5f0 13 * You may obtain a copy of the License at
nexpaq 0:6c56fb4bc5f0 14 *
nexpaq 0:6c56fb4bc5f0 15 * http://www.apache.org/licenses/LICENSE-2.0
nexpaq 0:6c56fb4bc5f0 16 *
nexpaq 0:6c56fb4bc5f0 17 * Unless required by applicable law or agreed to in writing, software
nexpaq 0:6c56fb4bc5f0 18 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
nexpaq 0:6c56fb4bc5f0 19 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
nexpaq 0:6c56fb4bc5f0 20 * See the License for the specific language governing permissions and
nexpaq 0:6c56fb4bc5f0 21 * limitations under the License.
nexpaq 0:6c56fb4bc5f0 22 *
nexpaq 0:6c56fb4bc5f0 23 * This file is part of mbed TLS (https://tls.mbed.org)
nexpaq 0:6c56fb4bc5f0 24 */
nexpaq 0:6c56fb4bc5f0 25
nexpaq 0:6c56fb4bc5f0 26 #include "mbedtls/pkcs11.h"
nexpaq 0:6c56fb4bc5f0 27
nexpaq 0:6c56fb4bc5f0 28 #if defined(MBEDTLS_PKCS11_C)
nexpaq 0:6c56fb4bc5f0 29
nexpaq 0:6c56fb4bc5f0 30 #include "mbedtls/md.h"
nexpaq 0:6c56fb4bc5f0 31 #include "mbedtls/oid.h"
nexpaq 0:6c56fb4bc5f0 32 #include "mbedtls/x509_crt.h"
nexpaq 0:6c56fb4bc5f0 33
nexpaq 0:6c56fb4bc5f0 34 #if defined(MBEDTLS_PLATFORM_C)
nexpaq 0:6c56fb4bc5f0 35 #include "mbedtls/platform.h"
nexpaq 0:6c56fb4bc5f0 36 #else
nexpaq 0:6c56fb4bc5f0 37 #include <stdlib.h>
nexpaq 0:6c56fb4bc5f0 38 #define mbedtls_calloc calloc
nexpaq 0:6c56fb4bc5f0 39 #define mbedtls_free free
nexpaq 0:6c56fb4bc5f0 40 #endif
nexpaq 0:6c56fb4bc5f0 41
nexpaq 0:6c56fb4bc5f0 42 #include <string.h>
nexpaq 0:6c56fb4bc5f0 43
nexpaq 0:6c56fb4bc5f0 44 void mbedtls_pkcs11_init( mbedtls_pkcs11_context *ctx )
nexpaq 0:6c56fb4bc5f0 45 {
nexpaq 0:6c56fb4bc5f0 46 memset( ctx, 0, sizeof( mbedtls_pkcs11_context ) );
nexpaq 0:6c56fb4bc5f0 47 }
nexpaq 0:6c56fb4bc5f0 48
nexpaq 0:6c56fb4bc5f0 49 int mbedtls_pkcs11_x509_cert_bind( mbedtls_x509_crt *cert, pkcs11h_certificate_t pkcs11_cert )
nexpaq 0:6c56fb4bc5f0 50 {
nexpaq 0:6c56fb4bc5f0 51 int ret = 1;
nexpaq 0:6c56fb4bc5f0 52 unsigned char *cert_blob = NULL;
nexpaq 0:6c56fb4bc5f0 53 size_t cert_blob_size = 0;
nexpaq 0:6c56fb4bc5f0 54
nexpaq 0:6c56fb4bc5f0 55 if( cert == NULL )
nexpaq 0:6c56fb4bc5f0 56 {
nexpaq 0:6c56fb4bc5f0 57 ret = 2;
nexpaq 0:6c56fb4bc5f0 58 goto cleanup;
nexpaq 0:6c56fb4bc5f0 59 }
nexpaq 0:6c56fb4bc5f0 60
nexpaq 0:6c56fb4bc5f0 61 if( pkcs11h_certificate_getCertificateBlob( pkcs11_cert, NULL,
nexpaq 0:6c56fb4bc5f0 62 &cert_blob_size ) != CKR_OK )
nexpaq 0:6c56fb4bc5f0 63 {
nexpaq 0:6c56fb4bc5f0 64 ret = 3;
nexpaq 0:6c56fb4bc5f0 65 goto cleanup;
nexpaq 0:6c56fb4bc5f0 66 }
nexpaq 0:6c56fb4bc5f0 67
nexpaq 0:6c56fb4bc5f0 68 cert_blob = mbedtls_calloc( 1, cert_blob_size );
nexpaq 0:6c56fb4bc5f0 69 if( NULL == cert_blob )
nexpaq 0:6c56fb4bc5f0 70 {
nexpaq 0:6c56fb4bc5f0 71 ret = 4;
nexpaq 0:6c56fb4bc5f0 72 goto cleanup;
nexpaq 0:6c56fb4bc5f0 73 }
nexpaq 0:6c56fb4bc5f0 74
nexpaq 0:6c56fb4bc5f0 75 if( pkcs11h_certificate_getCertificateBlob( pkcs11_cert, cert_blob,
nexpaq 0:6c56fb4bc5f0 76 &cert_blob_size ) != CKR_OK )
nexpaq 0:6c56fb4bc5f0 77 {
nexpaq 0:6c56fb4bc5f0 78 ret = 5;
nexpaq 0:6c56fb4bc5f0 79 goto cleanup;
nexpaq 0:6c56fb4bc5f0 80 }
nexpaq 0:6c56fb4bc5f0 81
nexpaq 0:6c56fb4bc5f0 82 if( 0 != mbedtls_x509_crt_parse( cert, cert_blob, cert_blob_size ) )
nexpaq 0:6c56fb4bc5f0 83 {
nexpaq 0:6c56fb4bc5f0 84 ret = 6;
nexpaq 0:6c56fb4bc5f0 85 goto cleanup;
nexpaq 0:6c56fb4bc5f0 86 }
nexpaq 0:6c56fb4bc5f0 87
nexpaq 0:6c56fb4bc5f0 88 ret = 0;
nexpaq 0:6c56fb4bc5f0 89
nexpaq 0:6c56fb4bc5f0 90 cleanup:
nexpaq 0:6c56fb4bc5f0 91 if( NULL != cert_blob )
nexpaq 0:6c56fb4bc5f0 92 mbedtls_free( cert_blob );
nexpaq 0:6c56fb4bc5f0 93
nexpaq 0:6c56fb4bc5f0 94 return( ret );
nexpaq 0:6c56fb4bc5f0 95 }
nexpaq 0:6c56fb4bc5f0 96
nexpaq 0:6c56fb4bc5f0 97
nexpaq 0:6c56fb4bc5f0 98 int mbedtls_pkcs11_priv_key_bind( mbedtls_pkcs11_context *priv_key,
nexpaq 0:6c56fb4bc5f0 99 pkcs11h_certificate_t pkcs11_cert )
nexpaq 0:6c56fb4bc5f0 100 {
nexpaq 0:6c56fb4bc5f0 101 int ret = 1;
nexpaq 0:6c56fb4bc5f0 102 mbedtls_x509_crt cert;
nexpaq 0:6c56fb4bc5f0 103
nexpaq 0:6c56fb4bc5f0 104 mbedtls_x509_crt_init( &cert );
nexpaq 0:6c56fb4bc5f0 105
nexpaq 0:6c56fb4bc5f0 106 if( priv_key == NULL )
nexpaq 0:6c56fb4bc5f0 107 goto cleanup;
nexpaq 0:6c56fb4bc5f0 108
nexpaq 0:6c56fb4bc5f0 109 if( 0 != mbedtls_pkcs11_x509_cert_bind( &cert, pkcs11_cert ) )
nexpaq 0:6c56fb4bc5f0 110 goto cleanup;
nexpaq 0:6c56fb4bc5f0 111
nexpaq 0:6c56fb4bc5f0 112 priv_key->len = mbedtls_pk_get_len( &cert.pk );
nexpaq 0:6c56fb4bc5f0 113 priv_key->pkcs11h_cert = pkcs11_cert;
nexpaq 0:6c56fb4bc5f0 114
nexpaq 0:6c56fb4bc5f0 115 ret = 0;
nexpaq 0:6c56fb4bc5f0 116
nexpaq 0:6c56fb4bc5f0 117 cleanup:
nexpaq 0:6c56fb4bc5f0 118 mbedtls_x509_crt_free( &cert );
nexpaq 0:6c56fb4bc5f0 119
nexpaq 0:6c56fb4bc5f0 120 return( ret );
nexpaq 0:6c56fb4bc5f0 121 }
nexpaq 0:6c56fb4bc5f0 122
nexpaq 0:6c56fb4bc5f0 123 void mbedtls_pkcs11_priv_key_free( mbedtls_pkcs11_context *priv_key )
nexpaq 0:6c56fb4bc5f0 124 {
nexpaq 0:6c56fb4bc5f0 125 if( NULL != priv_key )
nexpaq 0:6c56fb4bc5f0 126 pkcs11h_certificate_freeCertificate( priv_key->pkcs11h_cert );
nexpaq 0:6c56fb4bc5f0 127 }
nexpaq 0:6c56fb4bc5f0 128
nexpaq 0:6c56fb4bc5f0 129 int mbedtls_pkcs11_decrypt( mbedtls_pkcs11_context *ctx,
nexpaq 0:6c56fb4bc5f0 130 int mode, size_t *olen,
nexpaq 0:6c56fb4bc5f0 131 const unsigned char *input,
nexpaq 0:6c56fb4bc5f0 132 unsigned char *output,
nexpaq 0:6c56fb4bc5f0 133 size_t output_max_len )
nexpaq 0:6c56fb4bc5f0 134 {
nexpaq 0:6c56fb4bc5f0 135 size_t input_len, output_len;
nexpaq 0:6c56fb4bc5f0 136
nexpaq 0:6c56fb4bc5f0 137 if( NULL == ctx )
nexpaq 0:6c56fb4bc5f0 138 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
nexpaq 0:6c56fb4bc5f0 139
nexpaq 0:6c56fb4bc5f0 140 if( MBEDTLS_RSA_PRIVATE != mode )
nexpaq 0:6c56fb4bc5f0 141 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
nexpaq 0:6c56fb4bc5f0 142
nexpaq 0:6c56fb4bc5f0 143 output_len = input_len = ctx->len;
nexpaq 0:6c56fb4bc5f0 144
nexpaq 0:6c56fb4bc5f0 145 if( input_len < 16 || input_len > output_max_len )
nexpaq 0:6c56fb4bc5f0 146 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
nexpaq 0:6c56fb4bc5f0 147
nexpaq 0:6c56fb4bc5f0 148 /* Determine size of output buffer */
nexpaq 0:6c56fb4bc5f0 149 if( pkcs11h_certificate_decryptAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, input,
nexpaq 0:6c56fb4bc5f0 150 input_len, NULL, &output_len ) != CKR_OK )
nexpaq 0:6c56fb4bc5f0 151 {
nexpaq 0:6c56fb4bc5f0 152 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
nexpaq 0:6c56fb4bc5f0 153 }
nexpaq 0:6c56fb4bc5f0 154
nexpaq 0:6c56fb4bc5f0 155 if( output_len > output_max_len )
nexpaq 0:6c56fb4bc5f0 156 return( MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE );
nexpaq 0:6c56fb4bc5f0 157
nexpaq 0:6c56fb4bc5f0 158 if( pkcs11h_certificate_decryptAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, input,
nexpaq 0:6c56fb4bc5f0 159 input_len, output, &output_len ) != CKR_OK )
nexpaq 0:6c56fb4bc5f0 160 {
nexpaq 0:6c56fb4bc5f0 161 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
nexpaq 0:6c56fb4bc5f0 162 }
nexpaq 0:6c56fb4bc5f0 163 *olen = output_len;
nexpaq 0:6c56fb4bc5f0 164 return( 0 );
nexpaq 0:6c56fb4bc5f0 165 }
nexpaq 0:6c56fb4bc5f0 166
nexpaq 0:6c56fb4bc5f0 167 int mbedtls_pkcs11_sign( mbedtls_pkcs11_context *ctx,
nexpaq 0:6c56fb4bc5f0 168 int mode,
nexpaq 0:6c56fb4bc5f0 169 mbedtls_md_type_t md_alg,
nexpaq 0:6c56fb4bc5f0 170 unsigned int hashlen,
nexpaq 0:6c56fb4bc5f0 171 const unsigned char *hash,
nexpaq 0:6c56fb4bc5f0 172 unsigned char *sig )
nexpaq 0:6c56fb4bc5f0 173 {
nexpaq 0:6c56fb4bc5f0 174 size_t sig_len = 0, asn_len = 0, oid_size = 0;
nexpaq 0:6c56fb4bc5f0 175 unsigned char *p = sig;
nexpaq 0:6c56fb4bc5f0 176 const char *oid;
nexpaq 0:6c56fb4bc5f0 177
nexpaq 0:6c56fb4bc5f0 178 if( NULL == ctx )
nexpaq 0:6c56fb4bc5f0 179 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
nexpaq 0:6c56fb4bc5f0 180
nexpaq 0:6c56fb4bc5f0 181 if( MBEDTLS_RSA_PRIVATE != mode )
nexpaq 0:6c56fb4bc5f0 182 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
nexpaq 0:6c56fb4bc5f0 183
nexpaq 0:6c56fb4bc5f0 184 if( md_alg != MBEDTLS_MD_NONE )
nexpaq 0:6c56fb4bc5f0 185 {
nexpaq 0:6c56fb4bc5f0 186 const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( md_alg );
nexpaq 0:6c56fb4bc5f0 187 if( md_info == NULL )
nexpaq 0:6c56fb4bc5f0 188 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
nexpaq 0:6c56fb4bc5f0 189
nexpaq 0:6c56fb4bc5f0 190 if( mbedtls_oid_get_oid_by_md( md_alg, &oid, &oid_size ) != 0 )
nexpaq 0:6c56fb4bc5f0 191 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
nexpaq 0:6c56fb4bc5f0 192
nexpaq 0:6c56fb4bc5f0 193 hashlen = mbedtls_md_get_size( md_info );
nexpaq 0:6c56fb4bc5f0 194 asn_len = 10 + oid_size;
nexpaq 0:6c56fb4bc5f0 195 }
nexpaq 0:6c56fb4bc5f0 196
nexpaq 0:6c56fb4bc5f0 197 sig_len = ctx->len;
nexpaq 0:6c56fb4bc5f0 198 if( hashlen > sig_len || asn_len > sig_len ||
nexpaq 0:6c56fb4bc5f0 199 hashlen + asn_len > sig_len )
nexpaq 0:6c56fb4bc5f0 200 {
nexpaq 0:6c56fb4bc5f0 201 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
nexpaq 0:6c56fb4bc5f0 202 }
nexpaq 0:6c56fb4bc5f0 203
nexpaq 0:6c56fb4bc5f0 204 if( md_alg != MBEDTLS_MD_NONE )
nexpaq 0:6c56fb4bc5f0 205 {
nexpaq 0:6c56fb4bc5f0 206 /*
nexpaq 0:6c56fb4bc5f0 207 * DigestInfo ::= SEQUENCE {
nexpaq 0:6c56fb4bc5f0 208 * digestAlgorithm DigestAlgorithmIdentifier,
nexpaq 0:6c56fb4bc5f0 209 * digest Digest }
nexpaq 0:6c56fb4bc5f0 210 *
nexpaq 0:6c56fb4bc5f0 211 * DigestAlgorithmIdentifier ::= AlgorithmIdentifier
nexpaq 0:6c56fb4bc5f0 212 *
nexpaq 0:6c56fb4bc5f0 213 * Digest ::= OCTET STRING
nexpaq 0:6c56fb4bc5f0 214 */
nexpaq 0:6c56fb4bc5f0 215 *p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED;
nexpaq 0:6c56fb4bc5f0 216 *p++ = (unsigned char) ( 0x08 + oid_size + hashlen );
nexpaq 0:6c56fb4bc5f0 217 *p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED;
nexpaq 0:6c56fb4bc5f0 218 *p++ = (unsigned char) ( 0x04 + oid_size );
nexpaq 0:6c56fb4bc5f0 219 *p++ = MBEDTLS_ASN1_OID;
nexpaq 0:6c56fb4bc5f0 220 *p++ = oid_size & 0xFF;
nexpaq 0:6c56fb4bc5f0 221 memcpy( p, oid, oid_size );
nexpaq 0:6c56fb4bc5f0 222 p += oid_size;
nexpaq 0:6c56fb4bc5f0 223 *p++ = MBEDTLS_ASN1_NULL;
nexpaq 0:6c56fb4bc5f0 224 *p++ = 0x00;
nexpaq 0:6c56fb4bc5f0 225 *p++ = MBEDTLS_ASN1_OCTET_STRING;
nexpaq 0:6c56fb4bc5f0 226 *p++ = hashlen;
nexpaq 0:6c56fb4bc5f0 227 }
nexpaq 0:6c56fb4bc5f0 228
nexpaq 0:6c56fb4bc5f0 229 memcpy( p, hash, hashlen );
nexpaq 0:6c56fb4bc5f0 230
nexpaq 0:6c56fb4bc5f0 231 if( pkcs11h_certificate_signAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, sig,
nexpaq 0:6c56fb4bc5f0 232 asn_len + hashlen, sig, &sig_len ) != CKR_OK )
nexpaq 0:6c56fb4bc5f0 233 {
nexpaq 0:6c56fb4bc5f0 234 return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
nexpaq 0:6c56fb4bc5f0 235 }
nexpaq 0:6c56fb4bc5f0 236
nexpaq 0:6c56fb4bc5f0 237 return( 0 );
nexpaq 0:6c56fb4bc5f0 238 }
nexpaq 0:6c56fb4bc5f0 239
nexpaq 0:6c56fb4bc5f0 240 #endif /* defined(MBEDTLS_PKCS11_C) */