takashi kadono
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Nucleo_446
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mbed-os/features/mbedtls/src/pk_wrap.c@0:8fdf9a60065b, 2018-10-10 (annotated)
- Committer:
- kadonotakashi
- Date:
- Wed Oct 10 00:33:53 2018 +0000
- Revision:
- 0:8fdf9a60065b
how to make mbed librry
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| kadonotakashi | 0:8fdf9a60065b | 1 | /* |
| kadonotakashi | 0:8fdf9a60065b | 2 | * Public Key abstraction layer: wrapper functions |
| kadonotakashi | 0:8fdf9a60065b | 3 | * |
| kadonotakashi | 0:8fdf9a60065b | 4 | * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved |
| kadonotakashi | 0:8fdf9a60065b | 5 | * SPDX-License-Identifier: Apache-2.0 |
| kadonotakashi | 0:8fdf9a60065b | 6 | * |
| kadonotakashi | 0:8fdf9a60065b | 7 | * Licensed under the Apache License, Version 2.0 (the "License"); you may |
| kadonotakashi | 0:8fdf9a60065b | 8 | * not use this file except in compliance with the License. |
| kadonotakashi | 0:8fdf9a60065b | 9 | * You may obtain a copy of the License at |
| kadonotakashi | 0:8fdf9a60065b | 10 | * |
| kadonotakashi | 0:8fdf9a60065b | 11 | * http://www.apache.org/licenses/LICENSE-2.0 |
| kadonotakashi | 0:8fdf9a60065b | 12 | * |
| kadonotakashi | 0:8fdf9a60065b | 13 | * Unless required by applicable law or agreed to in writing, software |
| kadonotakashi | 0:8fdf9a60065b | 14 | * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| kadonotakashi | 0:8fdf9a60065b | 15 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| kadonotakashi | 0:8fdf9a60065b | 16 | * See the License for the specific language governing permissions and |
| kadonotakashi | 0:8fdf9a60065b | 17 | * limitations under the License. |
| kadonotakashi | 0:8fdf9a60065b | 18 | * |
| kadonotakashi | 0:8fdf9a60065b | 19 | * This file is part of mbed TLS (https://tls.mbed.org) |
| kadonotakashi | 0:8fdf9a60065b | 20 | */ |
| kadonotakashi | 0:8fdf9a60065b | 21 | |
| kadonotakashi | 0:8fdf9a60065b | 22 | #if !defined(MBEDTLS_CONFIG_FILE) |
| kadonotakashi | 0:8fdf9a60065b | 23 | #include "mbedtls/config.h" |
| kadonotakashi | 0:8fdf9a60065b | 24 | #else |
| kadonotakashi | 0:8fdf9a60065b | 25 | #include MBEDTLS_CONFIG_FILE |
| kadonotakashi | 0:8fdf9a60065b | 26 | #endif |
| kadonotakashi | 0:8fdf9a60065b | 27 | |
| kadonotakashi | 0:8fdf9a60065b | 28 | #if defined(MBEDTLS_PK_C) |
| kadonotakashi | 0:8fdf9a60065b | 29 | #include "mbedtls/pk_internal.h" |
| kadonotakashi | 0:8fdf9a60065b | 30 | |
| kadonotakashi | 0:8fdf9a60065b | 31 | /* Even if RSA not activated, for the sake of RSA-alt */ |
| kadonotakashi | 0:8fdf9a60065b | 32 | #include "mbedtls/rsa.h" |
| kadonotakashi | 0:8fdf9a60065b | 33 | |
| kadonotakashi | 0:8fdf9a60065b | 34 | #include <string.h> |
| kadonotakashi | 0:8fdf9a60065b | 35 | |
| kadonotakashi | 0:8fdf9a60065b | 36 | #if defined(MBEDTLS_ECP_C) |
| kadonotakashi | 0:8fdf9a60065b | 37 | #include "mbedtls/ecp.h" |
| kadonotakashi | 0:8fdf9a60065b | 38 | #endif |
| kadonotakashi | 0:8fdf9a60065b | 39 | |
| kadonotakashi | 0:8fdf9a60065b | 40 | #if defined(MBEDTLS_ECDSA_C) |
| kadonotakashi | 0:8fdf9a60065b | 41 | #include "mbedtls/ecdsa.h" |
| kadonotakashi | 0:8fdf9a60065b | 42 | #endif |
| kadonotakashi | 0:8fdf9a60065b | 43 | |
| kadonotakashi | 0:8fdf9a60065b | 44 | #if defined(MBEDTLS_PK_RSA_ALT_SUPPORT) |
| kadonotakashi | 0:8fdf9a60065b | 45 | #include "mbedtls/platform_util.h" |
| kadonotakashi | 0:8fdf9a60065b | 46 | #endif |
| kadonotakashi | 0:8fdf9a60065b | 47 | |
| kadonotakashi | 0:8fdf9a60065b | 48 | #if defined(MBEDTLS_PLATFORM_C) |
| kadonotakashi | 0:8fdf9a60065b | 49 | #include "mbedtls/platform.h" |
| kadonotakashi | 0:8fdf9a60065b | 50 | #else |
| kadonotakashi | 0:8fdf9a60065b | 51 | #include <stdlib.h> |
| kadonotakashi | 0:8fdf9a60065b | 52 | #define mbedtls_calloc calloc |
| kadonotakashi | 0:8fdf9a60065b | 53 | #define mbedtls_free free |
| kadonotakashi | 0:8fdf9a60065b | 54 | #endif |
| kadonotakashi | 0:8fdf9a60065b | 55 | |
| kadonotakashi | 0:8fdf9a60065b | 56 | #include <limits.h> |
| kadonotakashi | 0:8fdf9a60065b | 57 | #include <stdint.h> |
| kadonotakashi | 0:8fdf9a60065b | 58 | |
| kadonotakashi | 0:8fdf9a60065b | 59 | #if defined(MBEDTLS_RSA_C) |
| kadonotakashi | 0:8fdf9a60065b | 60 | static int rsa_can_do( mbedtls_pk_type_t type ) |
| kadonotakashi | 0:8fdf9a60065b | 61 | { |
| kadonotakashi | 0:8fdf9a60065b | 62 | return( type == MBEDTLS_PK_RSA || |
| kadonotakashi | 0:8fdf9a60065b | 63 | type == MBEDTLS_PK_RSASSA_PSS ); |
| kadonotakashi | 0:8fdf9a60065b | 64 | } |
| kadonotakashi | 0:8fdf9a60065b | 65 | |
| kadonotakashi | 0:8fdf9a60065b | 66 | static size_t rsa_get_bitlen( const void *ctx ) |
| kadonotakashi | 0:8fdf9a60065b | 67 | { |
| kadonotakashi | 0:8fdf9a60065b | 68 | const mbedtls_rsa_context * rsa = (const mbedtls_rsa_context *) ctx; |
| kadonotakashi | 0:8fdf9a60065b | 69 | return( 8 * mbedtls_rsa_get_len( rsa ) ); |
| kadonotakashi | 0:8fdf9a60065b | 70 | } |
| kadonotakashi | 0:8fdf9a60065b | 71 | |
| kadonotakashi | 0:8fdf9a60065b | 72 | static int rsa_verify_wrap( void *ctx, mbedtls_md_type_t md_alg, |
| kadonotakashi | 0:8fdf9a60065b | 73 | const unsigned char *hash, size_t hash_len, |
| kadonotakashi | 0:8fdf9a60065b | 74 | const unsigned char *sig, size_t sig_len ) |
| kadonotakashi | 0:8fdf9a60065b | 75 | { |
| kadonotakashi | 0:8fdf9a60065b | 76 | int ret; |
| kadonotakashi | 0:8fdf9a60065b | 77 | mbedtls_rsa_context * rsa = (mbedtls_rsa_context *) ctx; |
| kadonotakashi | 0:8fdf9a60065b | 78 | size_t rsa_len = mbedtls_rsa_get_len( rsa ); |
| kadonotakashi | 0:8fdf9a60065b | 79 | |
| kadonotakashi | 0:8fdf9a60065b | 80 | #if SIZE_MAX > UINT_MAX |
| kadonotakashi | 0:8fdf9a60065b | 81 | if( md_alg == MBEDTLS_MD_NONE && UINT_MAX < hash_len ) |
| kadonotakashi | 0:8fdf9a60065b | 82 | return( MBEDTLS_ERR_PK_BAD_INPUT_DATA ); |
| kadonotakashi | 0:8fdf9a60065b | 83 | #endif /* SIZE_MAX > UINT_MAX */ |
| kadonotakashi | 0:8fdf9a60065b | 84 | |
| kadonotakashi | 0:8fdf9a60065b | 85 | if( sig_len < rsa_len ) |
| kadonotakashi | 0:8fdf9a60065b | 86 | return( MBEDTLS_ERR_RSA_VERIFY_FAILED ); |
| kadonotakashi | 0:8fdf9a60065b | 87 | |
| kadonotakashi | 0:8fdf9a60065b | 88 | if( ( ret = mbedtls_rsa_pkcs1_verify( rsa, NULL, NULL, |
| kadonotakashi | 0:8fdf9a60065b | 89 | MBEDTLS_RSA_PUBLIC, md_alg, |
| kadonotakashi | 0:8fdf9a60065b | 90 | (unsigned int) hash_len, hash, sig ) ) != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 91 | return( ret ); |
| kadonotakashi | 0:8fdf9a60065b | 92 | |
| kadonotakashi | 0:8fdf9a60065b | 93 | /* The buffer contains a valid signature followed by extra data. |
| kadonotakashi | 0:8fdf9a60065b | 94 | * We have a special error code for that so that so that callers can |
| kadonotakashi | 0:8fdf9a60065b | 95 | * use mbedtls_pk_verify() to check "Does the buffer start with a |
| kadonotakashi | 0:8fdf9a60065b | 96 | * valid signature?" and not just "Does the buffer contain a valid |
| kadonotakashi | 0:8fdf9a60065b | 97 | * signature?". */ |
| kadonotakashi | 0:8fdf9a60065b | 98 | if( sig_len > rsa_len ) |
| kadonotakashi | 0:8fdf9a60065b | 99 | return( MBEDTLS_ERR_PK_SIG_LEN_MISMATCH ); |
| kadonotakashi | 0:8fdf9a60065b | 100 | |
| kadonotakashi | 0:8fdf9a60065b | 101 | return( 0 ); |
| kadonotakashi | 0:8fdf9a60065b | 102 | } |
| kadonotakashi | 0:8fdf9a60065b | 103 | |
| kadonotakashi | 0:8fdf9a60065b | 104 | static int rsa_sign_wrap( void *ctx, mbedtls_md_type_t md_alg, |
| kadonotakashi | 0:8fdf9a60065b | 105 | const unsigned char *hash, size_t hash_len, |
| kadonotakashi | 0:8fdf9a60065b | 106 | unsigned char *sig, size_t *sig_len, |
| kadonotakashi | 0:8fdf9a60065b | 107 | int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) |
| kadonotakashi | 0:8fdf9a60065b | 108 | { |
| kadonotakashi | 0:8fdf9a60065b | 109 | mbedtls_rsa_context * rsa = (mbedtls_rsa_context *) ctx; |
| kadonotakashi | 0:8fdf9a60065b | 110 | |
| kadonotakashi | 0:8fdf9a60065b | 111 | #if SIZE_MAX > UINT_MAX |
| kadonotakashi | 0:8fdf9a60065b | 112 | if( md_alg == MBEDTLS_MD_NONE && UINT_MAX < hash_len ) |
| kadonotakashi | 0:8fdf9a60065b | 113 | return( MBEDTLS_ERR_PK_BAD_INPUT_DATA ); |
| kadonotakashi | 0:8fdf9a60065b | 114 | #endif /* SIZE_MAX > UINT_MAX */ |
| kadonotakashi | 0:8fdf9a60065b | 115 | |
| kadonotakashi | 0:8fdf9a60065b | 116 | *sig_len = mbedtls_rsa_get_len( rsa ); |
| kadonotakashi | 0:8fdf9a60065b | 117 | |
| kadonotakashi | 0:8fdf9a60065b | 118 | return( mbedtls_rsa_pkcs1_sign( rsa, f_rng, p_rng, MBEDTLS_RSA_PRIVATE, |
| kadonotakashi | 0:8fdf9a60065b | 119 | md_alg, (unsigned int) hash_len, hash, sig ) ); |
| kadonotakashi | 0:8fdf9a60065b | 120 | } |
| kadonotakashi | 0:8fdf9a60065b | 121 | |
| kadonotakashi | 0:8fdf9a60065b | 122 | static int rsa_decrypt_wrap( void *ctx, |
| kadonotakashi | 0:8fdf9a60065b | 123 | const unsigned char *input, size_t ilen, |
| kadonotakashi | 0:8fdf9a60065b | 124 | unsigned char *output, size_t *olen, size_t osize, |
| kadonotakashi | 0:8fdf9a60065b | 125 | int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) |
| kadonotakashi | 0:8fdf9a60065b | 126 | { |
| kadonotakashi | 0:8fdf9a60065b | 127 | mbedtls_rsa_context * rsa = (mbedtls_rsa_context *) ctx; |
| kadonotakashi | 0:8fdf9a60065b | 128 | |
| kadonotakashi | 0:8fdf9a60065b | 129 | if( ilen != mbedtls_rsa_get_len( rsa ) ) |
| kadonotakashi | 0:8fdf9a60065b | 130 | return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); |
| kadonotakashi | 0:8fdf9a60065b | 131 | |
| kadonotakashi | 0:8fdf9a60065b | 132 | return( mbedtls_rsa_pkcs1_decrypt( rsa, f_rng, p_rng, |
| kadonotakashi | 0:8fdf9a60065b | 133 | MBEDTLS_RSA_PRIVATE, olen, input, output, osize ) ); |
| kadonotakashi | 0:8fdf9a60065b | 134 | } |
| kadonotakashi | 0:8fdf9a60065b | 135 | |
| kadonotakashi | 0:8fdf9a60065b | 136 | static int rsa_encrypt_wrap( void *ctx, |
| kadonotakashi | 0:8fdf9a60065b | 137 | const unsigned char *input, size_t ilen, |
| kadonotakashi | 0:8fdf9a60065b | 138 | unsigned char *output, size_t *olen, size_t osize, |
| kadonotakashi | 0:8fdf9a60065b | 139 | int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) |
| kadonotakashi | 0:8fdf9a60065b | 140 | { |
| kadonotakashi | 0:8fdf9a60065b | 141 | mbedtls_rsa_context * rsa = (mbedtls_rsa_context *) ctx; |
| kadonotakashi | 0:8fdf9a60065b | 142 | *olen = mbedtls_rsa_get_len( rsa ); |
| kadonotakashi | 0:8fdf9a60065b | 143 | |
| kadonotakashi | 0:8fdf9a60065b | 144 | if( *olen > osize ) |
| kadonotakashi | 0:8fdf9a60065b | 145 | return( MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE ); |
| kadonotakashi | 0:8fdf9a60065b | 146 | |
| kadonotakashi | 0:8fdf9a60065b | 147 | return( mbedtls_rsa_pkcs1_encrypt( rsa, f_rng, p_rng, MBEDTLS_RSA_PUBLIC, |
| kadonotakashi | 0:8fdf9a60065b | 148 | ilen, input, output ) ); |
| kadonotakashi | 0:8fdf9a60065b | 149 | } |
| kadonotakashi | 0:8fdf9a60065b | 150 | |
| kadonotakashi | 0:8fdf9a60065b | 151 | static int rsa_check_pair_wrap( const void *pub, const void *prv ) |
| kadonotakashi | 0:8fdf9a60065b | 152 | { |
| kadonotakashi | 0:8fdf9a60065b | 153 | return( mbedtls_rsa_check_pub_priv( (const mbedtls_rsa_context *) pub, |
| kadonotakashi | 0:8fdf9a60065b | 154 | (const mbedtls_rsa_context *) prv ) ); |
| kadonotakashi | 0:8fdf9a60065b | 155 | } |
| kadonotakashi | 0:8fdf9a60065b | 156 | |
| kadonotakashi | 0:8fdf9a60065b | 157 | static void *rsa_alloc_wrap( void ) |
| kadonotakashi | 0:8fdf9a60065b | 158 | { |
| kadonotakashi | 0:8fdf9a60065b | 159 | void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_rsa_context ) ); |
| kadonotakashi | 0:8fdf9a60065b | 160 | |
| kadonotakashi | 0:8fdf9a60065b | 161 | if( ctx != NULL ) |
| kadonotakashi | 0:8fdf9a60065b | 162 | mbedtls_rsa_init( (mbedtls_rsa_context *) ctx, 0, 0 ); |
| kadonotakashi | 0:8fdf9a60065b | 163 | |
| kadonotakashi | 0:8fdf9a60065b | 164 | return( ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 165 | } |
| kadonotakashi | 0:8fdf9a60065b | 166 | |
| kadonotakashi | 0:8fdf9a60065b | 167 | static void rsa_free_wrap( void *ctx ) |
| kadonotakashi | 0:8fdf9a60065b | 168 | { |
| kadonotakashi | 0:8fdf9a60065b | 169 | mbedtls_rsa_free( (mbedtls_rsa_context *) ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 170 | mbedtls_free( ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 171 | } |
| kadonotakashi | 0:8fdf9a60065b | 172 | |
| kadonotakashi | 0:8fdf9a60065b | 173 | static void rsa_debug( const void *ctx, mbedtls_pk_debug_item *items ) |
| kadonotakashi | 0:8fdf9a60065b | 174 | { |
| kadonotakashi | 0:8fdf9a60065b | 175 | items->type = MBEDTLS_PK_DEBUG_MPI; |
| kadonotakashi | 0:8fdf9a60065b | 176 | items->name = "rsa.N"; |
| kadonotakashi | 0:8fdf9a60065b | 177 | items->value = &( ((mbedtls_rsa_context *) ctx)->N ); |
| kadonotakashi | 0:8fdf9a60065b | 178 | |
| kadonotakashi | 0:8fdf9a60065b | 179 | items++; |
| kadonotakashi | 0:8fdf9a60065b | 180 | |
| kadonotakashi | 0:8fdf9a60065b | 181 | items->type = MBEDTLS_PK_DEBUG_MPI; |
| kadonotakashi | 0:8fdf9a60065b | 182 | items->name = "rsa.E"; |
| kadonotakashi | 0:8fdf9a60065b | 183 | items->value = &( ((mbedtls_rsa_context *) ctx)->E ); |
| kadonotakashi | 0:8fdf9a60065b | 184 | } |
| kadonotakashi | 0:8fdf9a60065b | 185 | |
| kadonotakashi | 0:8fdf9a60065b | 186 | const mbedtls_pk_info_t mbedtls_rsa_info = { |
| kadonotakashi | 0:8fdf9a60065b | 187 | MBEDTLS_PK_RSA, |
| kadonotakashi | 0:8fdf9a60065b | 188 | "RSA", |
| kadonotakashi | 0:8fdf9a60065b | 189 | rsa_get_bitlen, |
| kadonotakashi | 0:8fdf9a60065b | 190 | rsa_can_do, |
| kadonotakashi | 0:8fdf9a60065b | 191 | rsa_verify_wrap, |
| kadonotakashi | 0:8fdf9a60065b | 192 | rsa_sign_wrap, |
| kadonotakashi | 0:8fdf9a60065b | 193 | rsa_decrypt_wrap, |
| kadonotakashi | 0:8fdf9a60065b | 194 | rsa_encrypt_wrap, |
| kadonotakashi | 0:8fdf9a60065b | 195 | rsa_check_pair_wrap, |
| kadonotakashi | 0:8fdf9a60065b | 196 | rsa_alloc_wrap, |
| kadonotakashi | 0:8fdf9a60065b | 197 | rsa_free_wrap, |
| kadonotakashi | 0:8fdf9a60065b | 198 | rsa_debug, |
| kadonotakashi | 0:8fdf9a60065b | 199 | }; |
| kadonotakashi | 0:8fdf9a60065b | 200 | #endif /* MBEDTLS_RSA_C */ |
| kadonotakashi | 0:8fdf9a60065b | 201 | |
| kadonotakashi | 0:8fdf9a60065b | 202 | #if defined(MBEDTLS_ECP_C) |
| kadonotakashi | 0:8fdf9a60065b | 203 | /* |
| kadonotakashi | 0:8fdf9a60065b | 204 | * Generic EC key |
| kadonotakashi | 0:8fdf9a60065b | 205 | */ |
| kadonotakashi | 0:8fdf9a60065b | 206 | static int eckey_can_do( mbedtls_pk_type_t type ) |
| kadonotakashi | 0:8fdf9a60065b | 207 | { |
| kadonotakashi | 0:8fdf9a60065b | 208 | return( type == MBEDTLS_PK_ECKEY || |
| kadonotakashi | 0:8fdf9a60065b | 209 | type == MBEDTLS_PK_ECKEY_DH || |
| kadonotakashi | 0:8fdf9a60065b | 210 | type == MBEDTLS_PK_ECDSA ); |
| kadonotakashi | 0:8fdf9a60065b | 211 | } |
| kadonotakashi | 0:8fdf9a60065b | 212 | |
| kadonotakashi | 0:8fdf9a60065b | 213 | static size_t eckey_get_bitlen( const void *ctx ) |
| kadonotakashi | 0:8fdf9a60065b | 214 | { |
| kadonotakashi | 0:8fdf9a60065b | 215 | return( ((mbedtls_ecp_keypair *) ctx)->grp.pbits ); |
| kadonotakashi | 0:8fdf9a60065b | 216 | } |
| kadonotakashi | 0:8fdf9a60065b | 217 | |
| kadonotakashi | 0:8fdf9a60065b | 218 | #if defined(MBEDTLS_ECDSA_C) |
| kadonotakashi | 0:8fdf9a60065b | 219 | /* Forward declarations */ |
| kadonotakashi | 0:8fdf9a60065b | 220 | static int ecdsa_verify_wrap( void *ctx, mbedtls_md_type_t md_alg, |
| kadonotakashi | 0:8fdf9a60065b | 221 | const unsigned char *hash, size_t hash_len, |
| kadonotakashi | 0:8fdf9a60065b | 222 | const unsigned char *sig, size_t sig_len ); |
| kadonotakashi | 0:8fdf9a60065b | 223 | |
| kadonotakashi | 0:8fdf9a60065b | 224 | static int ecdsa_sign_wrap( void *ctx, mbedtls_md_type_t md_alg, |
| kadonotakashi | 0:8fdf9a60065b | 225 | const unsigned char *hash, size_t hash_len, |
| kadonotakashi | 0:8fdf9a60065b | 226 | unsigned char *sig, size_t *sig_len, |
| kadonotakashi | 0:8fdf9a60065b | 227 | int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ); |
| kadonotakashi | 0:8fdf9a60065b | 228 | |
| kadonotakashi | 0:8fdf9a60065b | 229 | static int eckey_verify_wrap( void *ctx, mbedtls_md_type_t md_alg, |
| kadonotakashi | 0:8fdf9a60065b | 230 | const unsigned char *hash, size_t hash_len, |
| kadonotakashi | 0:8fdf9a60065b | 231 | const unsigned char *sig, size_t sig_len ) |
| kadonotakashi | 0:8fdf9a60065b | 232 | { |
| kadonotakashi | 0:8fdf9a60065b | 233 | int ret; |
| kadonotakashi | 0:8fdf9a60065b | 234 | mbedtls_ecdsa_context ecdsa; |
| kadonotakashi | 0:8fdf9a60065b | 235 | |
| kadonotakashi | 0:8fdf9a60065b | 236 | mbedtls_ecdsa_init( &ecdsa ); |
| kadonotakashi | 0:8fdf9a60065b | 237 | |
| kadonotakashi | 0:8fdf9a60065b | 238 | if( ( ret = mbedtls_ecdsa_from_keypair( &ecdsa, ctx ) ) == 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 239 | ret = ecdsa_verify_wrap( &ecdsa, md_alg, hash, hash_len, sig, sig_len ); |
| kadonotakashi | 0:8fdf9a60065b | 240 | |
| kadonotakashi | 0:8fdf9a60065b | 241 | mbedtls_ecdsa_free( &ecdsa ); |
| kadonotakashi | 0:8fdf9a60065b | 242 | |
| kadonotakashi | 0:8fdf9a60065b | 243 | return( ret ); |
| kadonotakashi | 0:8fdf9a60065b | 244 | } |
| kadonotakashi | 0:8fdf9a60065b | 245 | |
| kadonotakashi | 0:8fdf9a60065b | 246 | static int eckey_sign_wrap( void *ctx, mbedtls_md_type_t md_alg, |
| kadonotakashi | 0:8fdf9a60065b | 247 | const unsigned char *hash, size_t hash_len, |
| kadonotakashi | 0:8fdf9a60065b | 248 | unsigned char *sig, size_t *sig_len, |
| kadonotakashi | 0:8fdf9a60065b | 249 | int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) |
| kadonotakashi | 0:8fdf9a60065b | 250 | { |
| kadonotakashi | 0:8fdf9a60065b | 251 | int ret; |
| kadonotakashi | 0:8fdf9a60065b | 252 | mbedtls_ecdsa_context ecdsa; |
| kadonotakashi | 0:8fdf9a60065b | 253 | |
| kadonotakashi | 0:8fdf9a60065b | 254 | mbedtls_ecdsa_init( &ecdsa ); |
| kadonotakashi | 0:8fdf9a60065b | 255 | |
| kadonotakashi | 0:8fdf9a60065b | 256 | if( ( ret = mbedtls_ecdsa_from_keypair( &ecdsa, ctx ) ) == 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 257 | ret = ecdsa_sign_wrap( &ecdsa, md_alg, hash, hash_len, sig, sig_len, |
| kadonotakashi | 0:8fdf9a60065b | 258 | f_rng, p_rng ); |
| kadonotakashi | 0:8fdf9a60065b | 259 | |
| kadonotakashi | 0:8fdf9a60065b | 260 | mbedtls_ecdsa_free( &ecdsa ); |
| kadonotakashi | 0:8fdf9a60065b | 261 | |
| kadonotakashi | 0:8fdf9a60065b | 262 | return( ret ); |
| kadonotakashi | 0:8fdf9a60065b | 263 | } |
| kadonotakashi | 0:8fdf9a60065b | 264 | |
| kadonotakashi | 0:8fdf9a60065b | 265 | #endif /* MBEDTLS_ECDSA_C */ |
| kadonotakashi | 0:8fdf9a60065b | 266 | |
| kadonotakashi | 0:8fdf9a60065b | 267 | static int eckey_check_pair( const void *pub, const void *prv ) |
| kadonotakashi | 0:8fdf9a60065b | 268 | { |
| kadonotakashi | 0:8fdf9a60065b | 269 | return( mbedtls_ecp_check_pub_priv( (const mbedtls_ecp_keypair *) pub, |
| kadonotakashi | 0:8fdf9a60065b | 270 | (const mbedtls_ecp_keypair *) prv ) ); |
| kadonotakashi | 0:8fdf9a60065b | 271 | } |
| kadonotakashi | 0:8fdf9a60065b | 272 | |
| kadonotakashi | 0:8fdf9a60065b | 273 | static void *eckey_alloc_wrap( void ) |
| kadonotakashi | 0:8fdf9a60065b | 274 | { |
| kadonotakashi | 0:8fdf9a60065b | 275 | void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_ecp_keypair ) ); |
| kadonotakashi | 0:8fdf9a60065b | 276 | |
| kadonotakashi | 0:8fdf9a60065b | 277 | if( ctx != NULL ) |
| kadonotakashi | 0:8fdf9a60065b | 278 | mbedtls_ecp_keypair_init( ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 279 | |
| kadonotakashi | 0:8fdf9a60065b | 280 | return( ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 281 | } |
| kadonotakashi | 0:8fdf9a60065b | 282 | |
| kadonotakashi | 0:8fdf9a60065b | 283 | static void eckey_free_wrap( void *ctx ) |
| kadonotakashi | 0:8fdf9a60065b | 284 | { |
| kadonotakashi | 0:8fdf9a60065b | 285 | mbedtls_ecp_keypair_free( (mbedtls_ecp_keypair *) ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 286 | mbedtls_free( ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 287 | } |
| kadonotakashi | 0:8fdf9a60065b | 288 | |
| kadonotakashi | 0:8fdf9a60065b | 289 | static void eckey_debug( const void *ctx, mbedtls_pk_debug_item *items ) |
| kadonotakashi | 0:8fdf9a60065b | 290 | { |
| kadonotakashi | 0:8fdf9a60065b | 291 | items->type = MBEDTLS_PK_DEBUG_ECP; |
| kadonotakashi | 0:8fdf9a60065b | 292 | items->name = "eckey.Q"; |
| kadonotakashi | 0:8fdf9a60065b | 293 | items->value = &( ((mbedtls_ecp_keypair *) ctx)->Q ); |
| kadonotakashi | 0:8fdf9a60065b | 294 | } |
| kadonotakashi | 0:8fdf9a60065b | 295 | |
| kadonotakashi | 0:8fdf9a60065b | 296 | const mbedtls_pk_info_t mbedtls_eckey_info = { |
| kadonotakashi | 0:8fdf9a60065b | 297 | MBEDTLS_PK_ECKEY, |
| kadonotakashi | 0:8fdf9a60065b | 298 | "EC", |
| kadonotakashi | 0:8fdf9a60065b | 299 | eckey_get_bitlen, |
| kadonotakashi | 0:8fdf9a60065b | 300 | eckey_can_do, |
| kadonotakashi | 0:8fdf9a60065b | 301 | #if defined(MBEDTLS_ECDSA_C) |
| kadonotakashi | 0:8fdf9a60065b | 302 | eckey_verify_wrap, |
| kadonotakashi | 0:8fdf9a60065b | 303 | eckey_sign_wrap, |
| kadonotakashi | 0:8fdf9a60065b | 304 | #else |
| kadonotakashi | 0:8fdf9a60065b | 305 | NULL, |
| kadonotakashi | 0:8fdf9a60065b | 306 | NULL, |
| kadonotakashi | 0:8fdf9a60065b | 307 | #endif |
| kadonotakashi | 0:8fdf9a60065b | 308 | NULL, |
| kadonotakashi | 0:8fdf9a60065b | 309 | NULL, |
| kadonotakashi | 0:8fdf9a60065b | 310 | eckey_check_pair, |
| kadonotakashi | 0:8fdf9a60065b | 311 | eckey_alloc_wrap, |
| kadonotakashi | 0:8fdf9a60065b | 312 | eckey_free_wrap, |
| kadonotakashi | 0:8fdf9a60065b | 313 | eckey_debug, |
| kadonotakashi | 0:8fdf9a60065b | 314 | }; |
| kadonotakashi | 0:8fdf9a60065b | 315 | |
| kadonotakashi | 0:8fdf9a60065b | 316 | /* |
| kadonotakashi | 0:8fdf9a60065b | 317 | * EC key restricted to ECDH |
| kadonotakashi | 0:8fdf9a60065b | 318 | */ |
| kadonotakashi | 0:8fdf9a60065b | 319 | static int eckeydh_can_do( mbedtls_pk_type_t type ) |
| kadonotakashi | 0:8fdf9a60065b | 320 | { |
| kadonotakashi | 0:8fdf9a60065b | 321 | return( type == MBEDTLS_PK_ECKEY || |
| kadonotakashi | 0:8fdf9a60065b | 322 | type == MBEDTLS_PK_ECKEY_DH ); |
| kadonotakashi | 0:8fdf9a60065b | 323 | } |
| kadonotakashi | 0:8fdf9a60065b | 324 | |
| kadonotakashi | 0:8fdf9a60065b | 325 | const mbedtls_pk_info_t mbedtls_eckeydh_info = { |
| kadonotakashi | 0:8fdf9a60065b | 326 | MBEDTLS_PK_ECKEY_DH, |
| kadonotakashi | 0:8fdf9a60065b | 327 | "EC_DH", |
| kadonotakashi | 0:8fdf9a60065b | 328 | eckey_get_bitlen, /* Same underlying key structure */ |
| kadonotakashi | 0:8fdf9a60065b | 329 | eckeydh_can_do, |
| kadonotakashi | 0:8fdf9a60065b | 330 | NULL, |
| kadonotakashi | 0:8fdf9a60065b | 331 | NULL, |
| kadonotakashi | 0:8fdf9a60065b | 332 | NULL, |
| kadonotakashi | 0:8fdf9a60065b | 333 | NULL, |
| kadonotakashi | 0:8fdf9a60065b | 334 | eckey_check_pair, |
| kadonotakashi | 0:8fdf9a60065b | 335 | eckey_alloc_wrap, /* Same underlying key structure */ |
| kadonotakashi | 0:8fdf9a60065b | 336 | eckey_free_wrap, /* Same underlying key structure */ |
| kadonotakashi | 0:8fdf9a60065b | 337 | eckey_debug, /* Same underlying key structure */ |
| kadonotakashi | 0:8fdf9a60065b | 338 | }; |
| kadonotakashi | 0:8fdf9a60065b | 339 | #endif /* MBEDTLS_ECP_C */ |
| kadonotakashi | 0:8fdf9a60065b | 340 | |
| kadonotakashi | 0:8fdf9a60065b | 341 | #if defined(MBEDTLS_ECDSA_C) |
| kadonotakashi | 0:8fdf9a60065b | 342 | static int ecdsa_can_do( mbedtls_pk_type_t type ) |
| kadonotakashi | 0:8fdf9a60065b | 343 | { |
| kadonotakashi | 0:8fdf9a60065b | 344 | return( type == MBEDTLS_PK_ECDSA ); |
| kadonotakashi | 0:8fdf9a60065b | 345 | } |
| kadonotakashi | 0:8fdf9a60065b | 346 | |
| kadonotakashi | 0:8fdf9a60065b | 347 | static int ecdsa_verify_wrap( void *ctx, mbedtls_md_type_t md_alg, |
| kadonotakashi | 0:8fdf9a60065b | 348 | const unsigned char *hash, size_t hash_len, |
| kadonotakashi | 0:8fdf9a60065b | 349 | const unsigned char *sig, size_t sig_len ) |
| kadonotakashi | 0:8fdf9a60065b | 350 | { |
| kadonotakashi | 0:8fdf9a60065b | 351 | int ret; |
| kadonotakashi | 0:8fdf9a60065b | 352 | ((void) md_alg); |
| kadonotakashi | 0:8fdf9a60065b | 353 | |
| kadonotakashi | 0:8fdf9a60065b | 354 | ret = mbedtls_ecdsa_read_signature( (mbedtls_ecdsa_context *) ctx, |
| kadonotakashi | 0:8fdf9a60065b | 355 | hash, hash_len, sig, sig_len ); |
| kadonotakashi | 0:8fdf9a60065b | 356 | |
| kadonotakashi | 0:8fdf9a60065b | 357 | if( ret == MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH ) |
| kadonotakashi | 0:8fdf9a60065b | 358 | return( MBEDTLS_ERR_PK_SIG_LEN_MISMATCH ); |
| kadonotakashi | 0:8fdf9a60065b | 359 | |
| kadonotakashi | 0:8fdf9a60065b | 360 | return( ret ); |
| kadonotakashi | 0:8fdf9a60065b | 361 | } |
| kadonotakashi | 0:8fdf9a60065b | 362 | |
| kadonotakashi | 0:8fdf9a60065b | 363 | static int ecdsa_sign_wrap( void *ctx, mbedtls_md_type_t md_alg, |
| kadonotakashi | 0:8fdf9a60065b | 364 | const unsigned char *hash, size_t hash_len, |
| kadonotakashi | 0:8fdf9a60065b | 365 | unsigned char *sig, size_t *sig_len, |
| kadonotakashi | 0:8fdf9a60065b | 366 | int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) |
| kadonotakashi | 0:8fdf9a60065b | 367 | { |
| kadonotakashi | 0:8fdf9a60065b | 368 | return( mbedtls_ecdsa_write_signature( (mbedtls_ecdsa_context *) ctx, |
| kadonotakashi | 0:8fdf9a60065b | 369 | md_alg, hash, hash_len, sig, sig_len, f_rng, p_rng ) ); |
| kadonotakashi | 0:8fdf9a60065b | 370 | } |
| kadonotakashi | 0:8fdf9a60065b | 371 | |
| kadonotakashi | 0:8fdf9a60065b | 372 | static void *ecdsa_alloc_wrap( void ) |
| kadonotakashi | 0:8fdf9a60065b | 373 | { |
| kadonotakashi | 0:8fdf9a60065b | 374 | void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_ecdsa_context ) ); |
| kadonotakashi | 0:8fdf9a60065b | 375 | |
| kadonotakashi | 0:8fdf9a60065b | 376 | if( ctx != NULL ) |
| kadonotakashi | 0:8fdf9a60065b | 377 | mbedtls_ecdsa_init( (mbedtls_ecdsa_context *) ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 378 | |
| kadonotakashi | 0:8fdf9a60065b | 379 | return( ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 380 | } |
| kadonotakashi | 0:8fdf9a60065b | 381 | |
| kadonotakashi | 0:8fdf9a60065b | 382 | static void ecdsa_free_wrap( void *ctx ) |
| kadonotakashi | 0:8fdf9a60065b | 383 | { |
| kadonotakashi | 0:8fdf9a60065b | 384 | mbedtls_ecdsa_free( (mbedtls_ecdsa_context *) ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 385 | mbedtls_free( ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 386 | } |
| kadonotakashi | 0:8fdf9a60065b | 387 | |
| kadonotakashi | 0:8fdf9a60065b | 388 | const mbedtls_pk_info_t mbedtls_ecdsa_info = { |
| kadonotakashi | 0:8fdf9a60065b | 389 | MBEDTLS_PK_ECDSA, |
| kadonotakashi | 0:8fdf9a60065b | 390 | "ECDSA", |
| kadonotakashi | 0:8fdf9a60065b | 391 | eckey_get_bitlen, /* Compatible key structures */ |
| kadonotakashi | 0:8fdf9a60065b | 392 | ecdsa_can_do, |
| kadonotakashi | 0:8fdf9a60065b | 393 | ecdsa_verify_wrap, |
| kadonotakashi | 0:8fdf9a60065b | 394 | ecdsa_sign_wrap, |
| kadonotakashi | 0:8fdf9a60065b | 395 | NULL, |
| kadonotakashi | 0:8fdf9a60065b | 396 | NULL, |
| kadonotakashi | 0:8fdf9a60065b | 397 | eckey_check_pair, /* Compatible key structures */ |
| kadonotakashi | 0:8fdf9a60065b | 398 | ecdsa_alloc_wrap, |
| kadonotakashi | 0:8fdf9a60065b | 399 | ecdsa_free_wrap, |
| kadonotakashi | 0:8fdf9a60065b | 400 | eckey_debug, /* Compatible key structures */ |
| kadonotakashi | 0:8fdf9a60065b | 401 | }; |
| kadonotakashi | 0:8fdf9a60065b | 402 | #endif /* MBEDTLS_ECDSA_C */ |
| kadonotakashi | 0:8fdf9a60065b | 403 | |
| kadonotakashi | 0:8fdf9a60065b | 404 | #if defined(MBEDTLS_PK_RSA_ALT_SUPPORT) |
| kadonotakashi | 0:8fdf9a60065b | 405 | /* |
| kadonotakashi | 0:8fdf9a60065b | 406 | * Support for alternative RSA-private implementations |
| kadonotakashi | 0:8fdf9a60065b | 407 | */ |
| kadonotakashi | 0:8fdf9a60065b | 408 | |
| kadonotakashi | 0:8fdf9a60065b | 409 | static int rsa_alt_can_do( mbedtls_pk_type_t type ) |
| kadonotakashi | 0:8fdf9a60065b | 410 | { |
| kadonotakashi | 0:8fdf9a60065b | 411 | return( type == MBEDTLS_PK_RSA ); |
| kadonotakashi | 0:8fdf9a60065b | 412 | } |
| kadonotakashi | 0:8fdf9a60065b | 413 | |
| kadonotakashi | 0:8fdf9a60065b | 414 | static size_t rsa_alt_get_bitlen( const void *ctx ) |
| kadonotakashi | 0:8fdf9a60065b | 415 | { |
| kadonotakashi | 0:8fdf9a60065b | 416 | const mbedtls_rsa_alt_context *rsa_alt = (const mbedtls_rsa_alt_context *) ctx; |
| kadonotakashi | 0:8fdf9a60065b | 417 | |
| kadonotakashi | 0:8fdf9a60065b | 418 | return( 8 * rsa_alt->key_len_func( rsa_alt->key ) ); |
| kadonotakashi | 0:8fdf9a60065b | 419 | } |
| kadonotakashi | 0:8fdf9a60065b | 420 | |
| kadonotakashi | 0:8fdf9a60065b | 421 | static int rsa_alt_sign_wrap( void *ctx, mbedtls_md_type_t md_alg, |
| kadonotakashi | 0:8fdf9a60065b | 422 | const unsigned char *hash, size_t hash_len, |
| kadonotakashi | 0:8fdf9a60065b | 423 | unsigned char *sig, size_t *sig_len, |
| kadonotakashi | 0:8fdf9a60065b | 424 | int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) |
| kadonotakashi | 0:8fdf9a60065b | 425 | { |
| kadonotakashi | 0:8fdf9a60065b | 426 | mbedtls_rsa_alt_context *rsa_alt = (mbedtls_rsa_alt_context *) ctx; |
| kadonotakashi | 0:8fdf9a60065b | 427 | |
| kadonotakashi | 0:8fdf9a60065b | 428 | #if SIZE_MAX > UINT_MAX |
| kadonotakashi | 0:8fdf9a60065b | 429 | if( UINT_MAX < hash_len ) |
| kadonotakashi | 0:8fdf9a60065b | 430 | return( MBEDTLS_ERR_PK_BAD_INPUT_DATA ); |
| kadonotakashi | 0:8fdf9a60065b | 431 | #endif /* SIZE_MAX > UINT_MAX */ |
| kadonotakashi | 0:8fdf9a60065b | 432 | |
| kadonotakashi | 0:8fdf9a60065b | 433 | *sig_len = rsa_alt->key_len_func( rsa_alt->key ); |
| kadonotakashi | 0:8fdf9a60065b | 434 | |
| kadonotakashi | 0:8fdf9a60065b | 435 | return( rsa_alt->sign_func( rsa_alt->key, f_rng, p_rng, MBEDTLS_RSA_PRIVATE, |
| kadonotakashi | 0:8fdf9a60065b | 436 | md_alg, (unsigned int) hash_len, hash, sig ) ); |
| kadonotakashi | 0:8fdf9a60065b | 437 | } |
| kadonotakashi | 0:8fdf9a60065b | 438 | |
| kadonotakashi | 0:8fdf9a60065b | 439 | static int rsa_alt_decrypt_wrap( void *ctx, |
| kadonotakashi | 0:8fdf9a60065b | 440 | const unsigned char *input, size_t ilen, |
| kadonotakashi | 0:8fdf9a60065b | 441 | unsigned char *output, size_t *olen, size_t osize, |
| kadonotakashi | 0:8fdf9a60065b | 442 | int (*f_rng)(void *, unsigned char *, size_t), void *p_rng ) |
| kadonotakashi | 0:8fdf9a60065b | 443 | { |
| kadonotakashi | 0:8fdf9a60065b | 444 | mbedtls_rsa_alt_context *rsa_alt = (mbedtls_rsa_alt_context *) ctx; |
| kadonotakashi | 0:8fdf9a60065b | 445 | |
| kadonotakashi | 0:8fdf9a60065b | 446 | ((void) f_rng); |
| kadonotakashi | 0:8fdf9a60065b | 447 | ((void) p_rng); |
| kadonotakashi | 0:8fdf9a60065b | 448 | |
| kadonotakashi | 0:8fdf9a60065b | 449 | if( ilen != rsa_alt->key_len_func( rsa_alt->key ) ) |
| kadonotakashi | 0:8fdf9a60065b | 450 | return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA ); |
| kadonotakashi | 0:8fdf9a60065b | 451 | |
| kadonotakashi | 0:8fdf9a60065b | 452 | return( rsa_alt->decrypt_func( rsa_alt->key, |
| kadonotakashi | 0:8fdf9a60065b | 453 | MBEDTLS_RSA_PRIVATE, olen, input, output, osize ) ); |
| kadonotakashi | 0:8fdf9a60065b | 454 | } |
| kadonotakashi | 0:8fdf9a60065b | 455 | |
| kadonotakashi | 0:8fdf9a60065b | 456 | #if defined(MBEDTLS_RSA_C) |
| kadonotakashi | 0:8fdf9a60065b | 457 | static int rsa_alt_check_pair( const void *pub, const void *prv ) |
| kadonotakashi | 0:8fdf9a60065b | 458 | { |
| kadonotakashi | 0:8fdf9a60065b | 459 | unsigned char sig[MBEDTLS_MPI_MAX_SIZE]; |
| kadonotakashi | 0:8fdf9a60065b | 460 | unsigned char hash[32]; |
| kadonotakashi | 0:8fdf9a60065b | 461 | size_t sig_len = 0; |
| kadonotakashi | 0:8fdf9a60065b | 462 | int ret; |
| kadonotakashi | 0:8fdf9a60065b | 463 | |
| kadonotakashi | 0:8fdf9a60065b | 464 | if( rsa_alt_get_bitlen( prv ) != rsa_get_bitlen( pub ) ) |
| kadonotakashi | 0:8fdf9a60065b | 465 | return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED ); |
| kadonotakashi | 0:8fdf9a60065b | 466 | |
| kadonotakashi | 0:8fdf9a60065b | 467 | memset( hash, 0x2a, sizeof( hash ) ); |
| kadonotakashi | 0:8fdf9a60065b | 468 | |
| kadonotakashi | 0:8fdf9a60065b | 469 | if( ( ret = rsa_alt_sign_wrap( (void *) prv, MBEDTLS_MD_NONE, |
| kadonotakashi | 0:8fdf9a60065b | 470 | hash, sizeof( hash ), |
| kadonotakashi | 0:8fdf9a60065b | 471 | sig, &sig_len, NULL, NULL ) ) != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 472 | { |
| kadonotakashi | 0:8fdf9a60065b | 473 | return( ret ); |
| kadonotakashi | 0:8fdf9a60065b | 474 | } |
| kadonotakashi | 0:8fdf9a60065b | 475 | |
| kadonotakashi | 0:8fdf9a60065b | 476 | if( rsa_verify_wrap( (void *) pub, MBEDTLS_MD_NONE, |
| kadonotakashi | 0:8fdf9a60065b | 477 | hash, sizeof( hash ), sig, sig_len ) != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 478 | { |
| kadonotakashi | 0:8fdf9a60065b | 479 | return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED ); |
| kadonotakashi | 0:8fdf9a60065b | 480 | } |
| kadonotakashi | 0:8fdf9a60065b | 481 | |
| kadonotakashi | 0:8fdf9a60065b | 482 | return( 0 ); |
| kadonotakashi | 0:8fdf9a60065b | 483 | } |
| kadonotakashi | 0:8fdf9a60065b | 484 | #endif /* MBEDTLS_RSA_C */ |
| kadonotakashi | 0:8fdf9a60065b | 485 | |
| kadonotakashi | 0:8fdf9a60065b | 486 | static void *rsa_alt_alloc_wrap( void ) |
| kadonotakashi | 0:8fdf9a60065b | 487 | { |
| kadonotakashi | 0:8fdf9a60065b | 488 | void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_rsa_alt_context ) ); |
| kadonotakashi | 0:8fdf9a60065b | 489 | |
| kadonotakashi | 0:8fdf9a60065b | 490 | if( ctx != NULL ) |
| kadonotakashi | 0:8fdf9a60065b | 491 | memset( ctx, 0, sizeof( mbedtls_rsa_alt_context ) ); |
| kadonotakashi | 0:8fdf9a60065b | 492 | |
| kadonotakashi | 0:8fdf9a60065b | 493 | return( ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 494 | } |
| kadonotakashi | 0:8fdf9a60065b | 495 | |
| kadonotakashi | 0:8fdf9a60065b | 496 | static void rsa_alt_free_wrap( void *ctx ) |
| kadonotakashi | 0:8fdf9a60065b | 497 | { |
| kadonotakashi | 0:8fdf9a60065b | 498 | mbedtls_platform_zeroize( ctx, sizeof( mbedtls_rsa_alt_context ) ); |
| kadonotakashi | 0:8fdf9a60065b | 499 | mbedtls_free( ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 500 | } |
| kadonotakashi | 0:8fdf9a60065b | 501 | |
| kadonotakashi | 0:8fdf9a60065b | 502 | const mbedtls_pk_info_t mbedtls_rsa_alt_info = { |
| kadonotakashi | 0:8fdf9a60065b | 503 | MBEDTLS_PK_RSA_ALT, |
| kadonotakashi | 0:8fdf9a60065b | 504 | "RSA-alt", |
| kadonotakashi | 0:8fdf9a60065b | 505 | rsa_alt_get_bitlen, |
| kadonotakashi | 0:8fdf9a60065b | 506 | rsa_alt_can_do, |
| kadonotakashi | 0:8fdf9a60065b | 507 | NULL, |
| kadonotakashi | 0:8fdf9a60065b | 508 | rsa_alt_sign_wrap, |
| kadonotakashi | 0:8fdf9a60065b | 509 | rsa_alt_decrypt_wrap, |
| kadonotakashi | 0:8fdf9a60065b | 510 | NULL, |
| kadonotakashi | 0:8fdf9a60065b | 511 | #if defined(MBEDTLS_RSA_C) |
| kadonotakashi | 0:8fdf9a60065b | 512 | rsa_alt_check_pair, |
| kadonotakashi | 0:8fdf9a60065b | 513 | #else |
| kadonotakashi | 0:8fdf9a60065b | 514 | NULL, |
| kadonotakashi | 0:8fdf9a60065b | 515 | #endif |
| kadonotakashi | 0:8fdf9a60065b | 516 | rsa_alt_alloc_wrap, |
| kadonotakashi | 0:8fdf9a60065b | 517 | rsa_alt_free_wrap, |
| kadonotakashi | 0:8fdf9a60065b | 518 | NULL, |
| kadonotakashi | 0:8fdf9a60065b | 519 | }; |
| kadonotakashi | 0:8fdf9a60065b | 520 | |
| kadonotakashi | 0:8fdf9a60065b | 521 | #endif /* MBEDTLS_PK_RSA_ALT_SUPPORT */ |
| kadonotakashi | 0:8fdf9a60065b | 522 | |
| kadonotakashi | 0:8fdf9a60065b | 523 | #endif /* MBEDTLS_PK_C */ |