2013-07-04 13:31:32 +02:00
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/*
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* Public Key abstraction layer
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*
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2020-08-07 13:07:28 +02:00
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* Copyright The Mbed TLS Contributors
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2023-11-02 20:47:20 +01:00
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* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
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2013-07-04 13:31:32 +02:00
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*/
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2020-06-03 01:43:33 +02:00
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#include "common.h"
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2013-07-04 13:31:32 +02:00
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2015-04-08 12:49:31 +02:00
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#if defined(MBEDTLS_PK_C)
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2015-03-09 18:05:11 +01:00
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#include "mbedtls/pk.h"
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2021-03-09 18:03:29 +01:00
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#include "pk_wrap.h"
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2022-03-15 15:00:55 +01:00
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#include "pkwrite.h"
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2023-05-15 12:57:06 +02:00
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#include "pk_internal.h"
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2013-07-09 10:35:54 +02:00
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2018-04-17 16:51:09 +02:00
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#include "mbedtls/platform_util.h"
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2019-11-22 14:21:35 +01:00
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#include "mbedtls/error.h"
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2017-01-19 12:24:33 +01:00
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2015-04-08 12:49:31 +02:00
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#if defined(MBEDTLS_RSA_C)
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2015-03-09 18:05:11 +01:00
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#include "mbedtls/rsa.h"
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2023-12-10 13:57:51 +01:00
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#include "rsa_internal.h"
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#endif
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2023-06-14 14:49:33 +02:00
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#if defined(MBEDTLS_PK_HAVE_ECC_KEYS)
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2015-03-09 18:05:11 +01:00
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#include "mbedtls/ecp.h"
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2013-07-09 10:35:54 +02:00
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#endif
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2015-04-08 12:49:31 +02:00
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#if defined(MBEDTLS_ECDSA_C)
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2015-03-09 18:05:11 +01:00
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#include "mbedtls/ecdsa.h"
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2013-07-10 12:29:57 +02:00
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#endif
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2013-07-04 13:31:32 +02:00
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2024-01-18 14:11:26 +01:00
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#if defined(MBEDTLS_PSA_CRYPTO_CLIENT)
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2023-06-07 13:07:21 +02:00
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#include "psa_util_internal.h"
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2024-01-02 13:26:40 +01:00
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#include "mbedtls/psa_util.h"
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2018-11-19 12:25:37 +01:00
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#endif
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2017-01-19 12:24:33 +01:00
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#include <limits.h>
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2017-08-04 14:32:15 +02:00
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#include <stdint.h>
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2014-06-13 17:20:13 +02:00
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2013-07-04 13:31:32 +02:00
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/*
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2015-04-08 12:49:31 +02:00
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* Initialise a mbedtls_pk_context
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2013-07-04 13:31:32 +02:00
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*/
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2023-01-11 14:50:10 +01:00
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void mbedtls_pk_init(mbedtls_pk_context *ctx)
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2013-07-04 13:31:32 +02:00
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{
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2013-08-14 18:26:41 +02:00
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ctx->pk_info = NULL;
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ctx->pk_ctx = NULL;
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2023-12-14 21:03:12 +01:00
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#if defined(MBEDTLS_USE_PSA_CRYPTO)
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2023-05-02 14:15:59 +02:00
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ctx->priv_id = MBEDTLS_SVC_KEY_ID_INIT;
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2023-12-14 21:03:12 +01:00
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#endif /* MBEDTLS_USE_PSA_CRYPTO */
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2023-05-17 15:31:21 +02:00
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#if defined(MBEDTLS_PK_USE_PSA_EC_DATA)
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memset(ctx->pub_raw, 0, sizeof(ctx->pub_raw));
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ctx->pub_raw_len = 0;
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ctx->ec_family = 0;
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ctx->ec_bits = 0;
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#endif /* MBEDTLS_PK_USE_PSA_EC_DATA */
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2013-07-04 13:31:32 +02:00
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}
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/*
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2015-04-08 12:49:31 +02:00
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* Free (the components of) a mbedtls_pk_context
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2013-07-04 13:31:32 +02:00
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*/
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2023-01-11 14:50:10 +01:00
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void mbedtls_pk_free(mbedtls_pk_context *ctx)
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2013-07-04 13:31:32 +02:00
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{
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2023-01-11 14:50:10 +01:00
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if (ctx == NULL) {
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2013-07-04 13:31:32 +02:00
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return;
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2023-01-11 14:50:10 +01:00
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}
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2013-07-04 13:31:32 +02:00
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2023-04-28 15:24:32 +02:00
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if ((ctx->pk_info != NULL) && (ctx->pk_info->ctx_free_func != NULL)) {
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2023-01-11 14:50:10 +01:00
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ctx->pk_info->ctx_free_func(ctx->pk_ctx);
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}
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2013-08-14 15:00:27 +02:00
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2023-05-18 18:51:58 +02:00
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#if defined(MBEDTLS_PK_USE_PSA_EC_DATA)
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/* The ownership of the priv_id key for opaque keys is external of the PK
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* module. It's the user responsibility to clear it after use. */
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if ((ctx->pk_info != NULL) && (ctx->pk_info->type != MBEDTLS_PK_OPAQUE)) {
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psa_destroy_key(ctx->priv_id);
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}
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#endif /* MBEDTLS_PK_USE_PSA_EC_DATA */
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2023-01-11 14:50:10 +01:00
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mbedtls_platform_zeroize(ctx, sizeof(mbedtls_pk_context));
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2013-08-14 15:00:27 +02:00
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}
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2017-08-18 17:30:37 +02:00
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#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
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2017-08-17 14:33:31 +02:00
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/*
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* Initialize a restart context
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*/
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2023-01-11 14:50:10 +01:00
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void mbedtls_pk_restart_init(mbedtls_pk_restart_ctx *ctx)
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2017-08-17 14:33:31 +02:00
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{
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2017-08-18 16:22:06 +02:00
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ctx->pk_info = NULL;
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ctx->rs_ctx = NULL;
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2017-08-17 14:33:31 +02:00
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}
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/*
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* Free the components of a restart context
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*/
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2023-01-11 14:50:10 +01:00
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void mbedtls_pk_restart_free(mbedtls_pk_restart_ctx *ctx)
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2017-08-17 14:33:31 +02:00
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{
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2023-01-11 14:50:10 +01:00
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if (ctx == NULL || ctx->pk_info == NULL ||
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ctx->pk_info->rs_free_func == NULL) {
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2017-08-17 14:33:31 +02:00
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return;
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2017-08-18 16:22:06 +02:00
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}
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2017-08-17 14:33:31 +02:00
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2023-01-11 14:50:10 +01:00
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ctx->pk_info->rs_free_func(ctx->rs_ctx);
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2017-08-18 16:22:06 +02:00
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ctx->pk_info = NULL;
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ctx->rs_ctx = NULL;
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2017-08-17 14:33:31 +02:00
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}
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2017-08-18 17:30:37 +02:00
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#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
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2017-08-17 14:33:31 +02:00
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2013-08-14 15:00:27 +02:00
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/*
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* Get pk_info structure from type
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*/
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2023-01-11 14:50:10 +01:00
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const mbedtls_pk_info_t *mbedtls_pk_info_from_type(mbedtls_pk_type_t pk_type)
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2013-08-14 15:00:27 +02:00
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{
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2023-01-11 14:50:10 +01:00
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switch (pk_type) {
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2015-04-08 12:49:31 +02:00
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#if defined(MBEDTLS_RSA_C)
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case MBEDTLS_PK_RSA:
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2023-01-11 14:50:10 +01:00
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return &mbedtls_rsa_info;
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2023-04-05 18:17:13 +02:00
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#endif /* MBEDTLS_RSA_C */
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2023-06-14 14:49:33 +02:00
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#if defined(MBEDTLS_PK_HAVE_ECC_KEYS)
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2015-04-08 12:49:31 +02:00
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case MBEDTLS_PK_ECKEY:
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2023-01-11 14:50:10 +01:00
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return &mbedtls_eckey_info;
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2015-04-08 12:49:31 +02:00
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case MBEDTLS_PK_ECKEY_DH:
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2023-01-11 14:50:10 +01:00
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return &mbedtls_eckeydh_info;
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2023-06-14 14:49:33 +02:00
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#endif /* MBEDTLS_PK_HAVE_ECC_KEYS */
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2023-01-27 13:22:42 +01:00
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#if defined(MBEDTLS_PK_CAN_ECDSA_SOME)
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2015-04-08 12:49:31 +02:00
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case MBEDTLS_PK_ECDSA:
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2023-01-11 14:50:10 +01:00
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return &mbedtls_ecdsa_info;
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2023-04-05 18:17:13 +02:00
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#endif /* MBEDTLS_PK_CAN_ECDSA_SOME */
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2015-04-08 12:49:31 +02:00
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/* MBEDTLS_PK_RSA_ALT omitted on purpose */
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2013-08-14 15:00:27 +02:00
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default:
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2023-01-11 14:50:10 +01:00
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return NULL;
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2013-07-04 13:31:32 +02:00
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}
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}
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/*
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2013-08-15 11:30:27 +02:00
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* Initialise context
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2013-07-04 13:31:32 +02:00
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*/
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2023-01-11 14:50:10 +01:00
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int mbedtls_pk_setup(mbedtls_pk_context *ctx, const mbedtls_pk_info_t *info)
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2013-07-04 13:31:32 +02:00
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{
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2023-01-11 14:50:10 +01:00
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if (info == NULL || ctx->pk_info != NULL) {
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return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
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}
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2013-07-04 13:31:32 +02:00
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2023-05-18 18:51:58 +02:00
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if ((info->ctx_alloc_func != NULL) &&
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2023-04-28 15:24:32 +02:00
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((ctx->pk_ctx = info->ctx_alloc_func()) == NULL)) {
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2023-01-11 14:50:10 +01:00
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return MBEDTLS_ERR_PK_ALLOC_FAILED;
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}
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2013-07-04 13:31:32 +02:00
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2013-08-14 18:26:41 +02:00
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ctx->pk_info = info;
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2013-07-04 13:31:32 +02:00
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2023-01-11 14:50:10 +01:00
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return 0;
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2013-07-04 13:31:32 +02:00
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}
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2013-08-14 15:56:19 +02:00
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2018-10-22 12:11:15 +02:00
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#if defined(MBEDTLS_USE_PSA_CRYPTO)
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/*
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* Initialise a PSA-wrapping context
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*/
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2023-01-11 14:50:10 +01:00
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int mbedtls_pk_setup_opaque(mbedtls_pk_context *ctx,
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const mbedtls_svc_key_id_t key)
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2018-10-22 12:11:15 +02:00
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{
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2022-03-15 12:01:26 +01:00
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const mbedtls_pk_info_t *info = NULL;
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2019-05-27 14:53:13 +02:00
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psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
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2018-10-31 10:57:29 +01:00
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psa_key_type_t type;
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2018-10-22 12:11:15 +02:00
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2023-01-11 14:50:10 +01:00
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if (ctx == NULL || ctx->pk_info != NULL) {
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return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
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}
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2018-10-22 12:11:15 +02:00
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2023-01-11 14:50:10 +01:00
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if (PSA_SUCCESS != psa_get_key_attributes(key, &attributes)) {
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return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
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}
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type = psa_get_key_type(&attributes);
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psa_reset_key_attributes(&attributes);
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2018-10-31 10:57:29 +01:00
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2023-06-30 18:11:29 +02:00
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#if defined(MBEDTLS_PK_HAVE_ECC_KEYS)
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2023-01-11 14:50:10 +01:00
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if (PSA_KEY_TYPE_IS_ECC_KEY_PAIR(type)) {
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2023-06-23 13:32:54 +02:00
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info = &mbedtls_ecdsa_opaque_info;
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2023-06-30 18:11:29 +02:00
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} else
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#endif /* MBEDTLS_PK_HAVE_ECC_KEYS */
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if (type == PSA_KEY_TYPE_RSA_KEY_PAIR) {
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2023-06-23 13:32:54 +02:00
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info = &mbedtls_rsa_opaque_info;
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2023-01-11 14:50:10 +01:00
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} else {
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return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
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}
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2018-10-31 10:57:29 +01:00
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2018-10-22 12:11:15 +02:00
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ctx->pk_info = info;
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2023-05-02 14:15:59 +02:00
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ctx->priv_id = key;
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2018-10-31 09:57:45 +01:00
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2023-01-11 14:50:10 +01:00
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return 0;
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2018-10-22 12:11:15 +02:00
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}
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#endif /* MBEDTLS_USE_PSA_CRYPTO */
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2015-04-08 12:49:31 +02:00
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#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
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2013-08-21 12:28:31 +02:00
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/*
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* Initialize an RSA-alt context
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*/
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2023-01-11 14:50:10 +01:00
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int mbedtls_pk_setup_rsa_alt(mbedtls_pk_context *ctx, void *key,
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mbedtls_pk_rsa_alt_decrypt_func decrypt_func,
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mbedtls_pk_rsa_alt_sign_func sign_func,
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mbedtls_pk_rsa_alt_key_len_func key_len_func)
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2013-08-21 12:28:31 +02:00
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{
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2015-04-08 12:49:31 +02:00
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mbedtls_rsa_alt_context *rsa_alt;
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const mbedtls_pk_info_t *info = &mbedtls_rsa_alt_info;
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2013-08-21 12:28:31 +02:00
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2023-01-11 14:50:10 +01:00
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if (ctx->pk_info != NULL) {
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return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
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}
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2013-08-21 12:28:31 +02:00
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2023-01-11 14:50:10 +01:00
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if ((ctx->pk_ctx = info->ctx_alloc_func()) == NULL) {
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return MBEDTLS_ERR_PK_ALLOC_FAILED;
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}
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2013-08-21 12:28:31 +02:00
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ctx->pk_info = info;
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2015-04-08 12:49:31 +02:00
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rsa_alt = (mbedtls_rsa_alt_context *) ctx->pk_ctx;
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2013-08-21 12:28:31 +02:00
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rsa_alt->key = key;
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rsa_alt->decrypt_func = decrypt_func;
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rsa_alt->sign_func = sign_func;
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rsa_alt->key_len_func = key_len_func;
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2023-01-11 14:50:10 +01:00
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return 0;
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2013-08-21 12:28:31 +02:00
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}
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2015-04-08 12:49:31 +02:00
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#endif /* MBEDTLS_PK_RSA_ALT_SUPPORT */
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2013-08-21 12:28:31 +02:00
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2013-08-14 15:56:19 +02:00
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/*
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* Tell if a PK can do the operations of the given type
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*/
|
2023-01-11 14:50:10 +01:00
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int mbedtls_pk_can_do(const mbedtls_pk_context *ctx, mbedtls_pk_type_t type)
|
2013-08-14 15:56:19 +02:00
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{
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2019-01-31 14:20:20 +01:00
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/* A context with null pk_info is not set up yet and can't do anything.
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* For backward compatibility, also accept NULL instead of a context
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* pointer. */
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2023-01-11 14:50:10 +01:00
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if (ctx == NULL || ctx->pk_info == NULL) {
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return 0;
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}
|
2013-08-14 15:56:19 +02:00
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2023-01-11 14:50:10 +01:00
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return ctx->pk_info->can_do(type);
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2013-08-14 15:56:19 +02:00
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}
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2022-05-11 14:11:25 +02:00
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#if defined(MBEDTLS_USE_PSA_CRYPTO)
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/*
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* Tell if a PK can do the operations of the given PSA algorithm
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*/
|
2023-01-11 14:50:10 +01:00
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|
int mbedtls_pk_can_do_ext(const mbedtls_pk_context *ctx, psa_algorithm_t alg,
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psa_key_usage_t usage)
|
2022-05-11 14:11:25 +02:00
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|
{
|
2022-05-17 14:23:20 +02:00
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|
psa_key_usage_t key_usage;
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|
|
|
|
2022-05-11 14:11:25 +02:00
|
|
|
/* A context with null pk_info is not set up yet and can't do anything.
|
|
|
|
* For backward compatibility, also accept NULL instead of a context
|
|
|
|
* pointer. */
|
2023-01-11 14:50:10 +01:00
|
|
|
if (ctx == NULL || ctx->pk_info == NULL) {
|
|
|
|
return 0;
|
|
|
|
}
|
2022-05-11 14:11:25 +02:00
|
|
|
|
|
|
|
/* Filter out non allowed algorithms */
|
2023-01-11 14:50:10 +01:00
|
|
|
if (PSA_ALG_IS_ECDSA(alg) == 0 &&
|
|
|
|
PSA_ALG_IS_RSA_PKCS1V15_SIGN(alg) == 0 &&
|
|
|
|
PSA_ALG_IS_RSA_PSS(alg) == 0 &&
|
2022-05-11 14:11:25 +02:00
|
|
|
alg != PSA_ALG_RSA_PKCS1V15_CRYPT &&
|
2023-01-11 14:50:10 +01:00
|
|
|
PSA_ALG_IS_ECDH(alg) == 0) {
|
|
|
|
return 0;
|
|
|
|
}
|
2022-05-11 14:11:25 +02:00
|
|
|
|
2022-05-17 14:23:20 +02:00
|
|
|
/* Filter out non allowed usage flags */
|
2023-01-11 14:50:10 +01:00
|
|
|
if (usage == 0 ||
|
|
|
|
(usage & ~(PSA_KEY_USAGE_SIGN_HASH |
|
|
|
|
PSA_KEY_USAGE_DECRYPT |
|
|
|
|
PSA_KEY_USAGE_DERIVE)) != 0) {
|
|
|
|
return 0;
|
|
|
|
}
|
2022-05-17 14:23:20 +02:00
|
|
|
|
2022-05-11 14:11:25 +02:00
|
|
|
/* Wildcard hash is not allowed */
|
2023-01-11 14:50:10 +01:00
|
|
|
if (PSA_ALG_IS_SIGN_HASH(alg) &&
|
|
|
|
PSA_ALG_SIGN_GET_HASH(alg) == PSA_ALG_ANY_HASH) {
|
|
|
|
return 0;
|
|
|
|
}
|
2022-05-11 14:11:25 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (mbedtls_pk_get_type(ctx) != MBEDTLS_PK_OPAQUE) {
|
2022-05-11 14:11:25 +02:00
|
|
|
mbedtls_pk_type_t type;
|
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (PSA_ALG_IS_ECDSA(alg) || PSA_ALG_IS_ECDH(alg)) {
|
2022-05-11 14:11:25 +02:00
|
|
|
type = MBEDTLS_PK_ECKEY;
|
2023-01-11 14:50:10 +01:00
|
|
|
} else if (PSA_ALG_IS_RSA_PKCS1V15_SIGN(alg) ||
|
|
|
|
alg == PSA_ALG_RSA_PKCS1V15_CRYPT) {
|
2022-05-11 14:11:25 +02:00
|
|
|
type = MBEDTLS_PK_RSA;
|
2023-01-11 14:50:10 +01:00
|
|
|
} else if (PSA_ALG_IS_RSA_PSS(alg)) {
|
2022-05-11 14:11:25 +02:00
|
|
|
type = MBEDTLS_PK_RSASSA_PSS;
|
2023-01-11 14:50:10 +01:00
|
|
|
} else {
|
|
|
|
return 0;
|
|
|
|
}
|
2022-05-11 14:11:25 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (ctx->pk_info->can_do(type) == 0) {
|
|
|
|
return 0;
|
|
|
|
}
|
2022-05-17 14:23:20 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
switch (type) {
|
2022-05-19 16:22:40 +02:00
|
|
|
case MBEDTLS_PK_ECKEY:
|
|
|
|
key_usage = PSA_KEY_USAGE_SIGN_HASH | PSA_KEY_USAGE_DERIVE;
|
|
|
|
break;
|
|
|
|
case MBEDTLS_PK_RSA:
|
|
|
|
case MBEDTLS_PK_RSASSA_PSS:
|
|
|
|
key_usage = PSA_KEY_USAGE_SIGN_HASH |
|
|
|
|
PSA_KEY_USAGE_SIGN_MESSAGE |
|
|
|
|
PSA_KEY_USAGE_DECRYPT;
|
|
|
|
break;
|
|
|
|
default:
|
2022-05-20 09:25:55 +02:00
|
|
|
/* Should never happen */
|
2023-01-11 14:50:10 +01:00
|
|
|
return 0;
|
2022-05-19 16:22:40 +02:00
|
|
|
}
|
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
return (key_usage & usage) == usage;
|
2022-05-11 14:11:25 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
|
|
|
|
psa_status_t status;
|
|
|
|
|
2023-05-02 14:15:59 +02:00
|
|
|
status = psa_get_key_attributes(ctx->priv_id, &attributes);
|
2023-01-11 14:50:10 +01:00
|
|
|
if (status != PSA_SUCCESS) {
|
|
|
|
return 0;
|
|
|
|
}
|
2022-05-11 14:11:25 +02:00
|
|
|
|
2023-12-05 10:14:06 +01:00
|
|
|
psa_algorithm_t key_alg = psa_get_key_algorithm(&attributes);
|
|
|
|
/* Key's enrollment is available only when MBEDTLS_PSA_CRYPTO_CLIENT is
|
|
|
|
* defined, i.e. when the Mbed TLS implementation of PSA Crypto is being used.
|
|
|
|
* Even though we don't officially support using other implementations of PSA
|
|
|
|
* Crypto with TLS and X.509 (yet), we're still trying to simplify the life of
|
|
|
|
* people who would like to try it before it's officially supported. */
|
|
|
|
#if defined(MBEDTLS_PSA_CRYPTO_CLIENT)
|
|
|
|
psa_algorithm_t key_alg2 = psa_get_key_enrollment_algorithm(&attributes);
|
|
|
|
#endif /* MBEDTLS_PSA_CRYPTO_CLIENT */
|
2023-01-11 14:50:10 +01:00
|
|
|
key_usage = psa_get_key_usage_flags(&attributes);
|
|
|
|
psa_reset_key_attributes(&attributes);
|
2022-05-11 14:11:25 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if ((key_usage & usage) != usage) {
|
|
|
|
return 0;
|
|
|
|
}
|
2022-05-17 14:23:20 +02:00
|
|
|
|
2022-05-11 14:11:25 +02:00
|
|
|
/*
|
2023-12-05 10:14:06 +01:00
|
|
|
* Common case: the key alg [or alg2] only allows alg.
|
2022-05-11 14:11:25 +02:00
|
|
|
* This will match PSA_ALG_RSA_PKCS1V15_CRYPT & PSA_ALG_IS_ECDH
|
|
|
|
* directly.
|
|
|
|
* This would also match ECDSA/RSA_PKCS1V15_SIGN/RSA_PSS with
|
2023-12-05 10:14:06 +01:00
|
|
|
* a fixed hash on key_alg [or key_alg2].
|
2022-05-11 14:11:25 +02:00
|
|
|
*/
|
2023-12-05 10:14:06 +01:00
|
|
|
if (alg == key_alg) {
|
2023-01-11 14:50:10 +01:00
|
|
|
return 1;
|
|
|
|
}
|
2023-12-05 10:14:06 +01:00
|
|
|
#if defined(MBEDTLS_PSA_CRYPTO_CLIENT)
|
|
|
|
if (alg == key_alg2) {
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
#endif /* MBEDTLS_PSA_CRYPTO_CLIENT */
|
2022-05-11 14:11:25 +02:00
|
|
|
|
|
|
|
/*
|
2023-12-05 10:14:06 +01:00
|
|
|
* If key_alg [or key_alg2] is a hash-and-sign with a wildcard for the hash,
|
2022-05-17 14:58:27 +02:00
|
|
|
* and alg is the same hash-and-sign family with any hash,
|
2022-05-11 14:11:25 +02:00
|
|
|
* then alg is compliant with this key alg
|
|
|
|
*/
|
2023-01-11 14:50:10 +01:00
|
|
|
if (PSA_ALG_IS_SIGN_HASH(alg)) {
|
2022-05-11 14:11:25 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (PSA_ALG_IS_SIGN_HASH(key_alg) &&
|
|
|
|
PSA_ALG_SIGN_GET_HASH(key_alg) == PSA_ALG_ANY_HASH &&
|
|
|
|
(alg & ~PSA_ALG_HASH_MASK) == (key_alg & ~PSA_ALG_HASH_MASK)) {
|
|
|
|
return 1;
|
|
|
|
}
|
2023-12-05 10:14:06 +01:00
|
|
|
#if defined(MBEDTLS_PSA_CRYPTO_CLIENT)
|
2023-01-11 14:50:10 +01:00
|
|
|
if (PSA_ALG_IS_SIGN_HASH(key_alg2) &&
|
|
|
|
PSA_ALG_SIGN_GET_HASH(key_alg2) == PSA_ALG_ANY_HASH &&
|
|
|
|
(alg & ~PSA_ALG_HASH_MASK) == (key_alg2 & ~PSA_ALG_HASH_MASK)) {
|
|
|
|
return 1;
|
|
|
|
}
|
2023-12-05 10:14:06 +01:00
|
|
|
#endif /* MBEDTLS_PSA_CRYPTO_CLIENT */
|
2022-05-11 14:11:25 +02:00
|
|
|
}
|
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
return 0;
|
2022-05-11 14:11:25 +02:00
|
|
|
}
|
|
|
|
#endif /* MBEDTLS_USE_PSA_CRYPTO */
|
|
|
|
|
2024-01-24 13:40:09 +01:00
|
|
|
#if defined(MBEDTLS_PSA_CRYPTO_C)
|
2024-01-18 14:16:27 +01:00
|
|
|
#if defined(MBEDTLS_RSA_C)
|
|
|
|
static psa_algorithm_t psa_algorithm_for_rsa(const mbedtls_rsa_context *rsa,
|
|
|
|
int want_crypt)
|
|
|
|
{
|
|
|
|
if (mbedtls_rsa_get_padding_mode(rsa) == MBEDTLS_RSA_PKCS_V21) {
|
|
|
|
if (want_crypt) {
|
2024-02-13 14:40:26 +01:00
|
|
|
mbedtls_md_type_t md_type = (mbedtls_md_type_t) mbedtls_rsa_get_md_alg(rsa);
|
2024-01-18 14:16:27 +01:00
|
|
|
return PSA_ALG_RSA_OAEP(mbedtls_md_psa_alg_from_type(md_type));
|
|
|
|
} else {
|
|
|
|
return PSA_ALG_RSA_PSS_ANY_SALT(PSA_ALG_ANY_HASH);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
if (want_crypt) {
|
|
|
|
return PSA_ALG_RSA_PKCS1V15_CRYPT;
|
|
|
|
} else {
|
|
|
|
return PSA_ALG_RSA_PKCS1V15_SIGN(PSA_ALG_ANY_HASH);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif /* MBEDTLS_RSA_C */
|
|
|
|
|
2024-01-18 14:11:26 +01:00
|
|
|
int mbedtls_pk_get_psa_attributes(const mbedtls_pk_context *pk,
|
|
|
|
psa_key_usage_t usage,
|
|
|
|
psa_key_attributes_t *attributes)
|
|
|
|
{
|
|
|
|
mbedtls_pk_type_t pk_type = mbedtls_pk_get_type(pk);
|
|
|
|
|
2024-01-18 17:47:54 +01:00
|
|
|
psa_key_usage_t more_usage = usage;
|
|
|
|
if (usage == PSA_KEY_USAGE_SIGN_MESSAGE) {
|
|
|
|
more_usage |= PSA_KEY_USAGE_VERIFY_MESSAGE;
|
|
|
|
} else if (usage == PSA_KEY_USAGE_SIGN_HASH) {
|
|
|
|
more_usage |= PSA_KEY_USAGE_VERIFY_HASH;
|
|
|
|
} else if (usage == PSA_KEY_USAGE_DECRYPT) {
|
|
|
|
more_usage |= PSA_KEY_USAGE_ENCRYPT;
|
|
|
|
}
|
|
|
|
more_usage |= PSA_KEY_USAGE_EXPORT | PSA_KEY_USAGE_COPY;
|
|
|
|
|
2024-01-23 17:03:31 +01:00
|
|
|
int want_private = !(usage == PSA_KEY_USAGE_VERIFY_MESSAGE ||
|
|
|
|
usage == PSA_KEY_USAGE_VERIFY_HASH ||
|
|
|
|
usage == PSA_KEY_USAGE_ENCRYPT);
|
|
|
|
|
2024-01-18 14:11:26 +01:00
|
|
|
switch (pk_type) {
|
2024-01-18 14:16:27 +01:00
|
|
|
#if defined(MBEDTLS_RSA_C)
|
|
|
|
case MBEDTLS_PK_RSA:
|
2024-01-18 17:47:54 +01:00
|
|
|
{
|
2024-02-01 21:00:33 +01:00
|
|
|
int want_crypt = 0; /* 0: sign/verify; 1: encrypt/decrypt */
|
2024-01-18 14:16:27 +01:00
|
|
|
switch (usage) {
|
|
|
|
case PSA_KEY_USAGE_SIGN_MESSAGE:
|
|
|
|
case PSA_KEY_USAGE_SIGN_HASH:
|
|
|
|
case PSA_KEY_USAGE_VERIFY_MESSAGE:
|
|
|
|
case PSA_KEY_USAGE_VERIFY_HASH:
|
2024-01-23 17:03:31 +01:00
|
|
|
/* Nothing to do. */
|
2024-01-18 14:16:27 +01:00
|
|
|
break;
|
2024-01-23 17:03:31 +01:00
|
|
|
case PSA_KEY_USAGE_DECRYPT:
|
2024-01-18 14:16:27 +01:00
|
|
|
case PSA_KEY_USAGE_ENCRYPT:
|
|
|
|
want_crypt = 1;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
|
|
|
/* Detect the presence of a private key in a way that works both
|
|
|
|
* in CRT and non-CRT configurations. */
|
|
|
|
mbedtls_rsa_context *rsa = mbedtls_pk_rsa(*pk);
|
|
|
|
int has_private = (mbedtls_rsa_check_privkey(rsa) == 0);
|
|
|
|
if (want_private && !has_private) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
|
|
|
psa_set_key_type(attributes, (want_private ?
|
|
|
|
PSA_KEY_TYPE_RSA_KEY_PAIR :
|
|
|
|
PSA_KEY_TYPE_RSA_PUBLIC_KEY));
|
2024-01-23 18:07:36 +01:00
|
|
|
psa_set_key_bits(attributes, mbedtls_pk_get_bitlen(pk));
|
2024-01-18 14:16:27 +01:00
|
|
|
psa_set_key_algorithm(attributes,
|
|
|
|
psa_algorithm_for_rsa(rsa, want_crypt));
|
|
|
|
break;
|
2024-01-18 17:47:54 +01:00
|
|
|
}
|
2024-01-18 14:16:27 +01:00
|
|
|
#endif /* MBEDTLS_RSA_C */
|
|
|
|
|
2024-01-18 17:47:54 +01:00
|
|
|
#if defined(MBEDTLS_PK_HAVE_ECC_KEYS)
|
|
|
|
case MBEDTLS_PK_ECKEY:
|
|
|
|
case MBEDTLS_PK_ECKEY_DH:
|
|
|
|
case MBEDTLS_PK_ECDSA:
|
|
|
|
{
|
|
|
|
int sign_ok = (pk_type != MBEDTLS_PK_ECKEY_DH);
|
|
|
|
int derive_ok = (pk_type != MBEDTLS_PK_ECDSA);
|
2024-01-23 11:05:34 +01:00
|
|
|
#if defined(MBEDTLS_PK_USE_PSA_EC_DATA)
|
2024-02-02 13:12:39 +01:00
|
|
|
psa_ecc_family_t family = pk->ec_family;
|
|
|
|
size_t bits = pk->ec_bits;
|
|
|
|
int has_private = 0;
|
|
|
|
if (pk->priv_id != MBEDTLS_SVC_KEY_ID_INIT) {
|
|
|
|
has_private = 1;
|
2024-01-23 11:05:34 +01:00
|
|
|
}
|
|
|
|
#else
|
2024-02-01 20:48:04 +01:00
|
|
|
const mbedtls_ecp_keypair *ec = mbedtls_pk_ec_ro(*pk);
|
2024-01-18 17:47:54 +01:00
|
|
|
int has_private = (ec->d.n != 0);
|
|
|
|
size_t bits = 0;
|
|
|
|
psa_ecc_family_t family =
|
|
|
|
mbedtls_ecc_group_to_psa(ec->grp.id, &bits);
|
2024-01-23 11:05:34 +01:00
|
|
|
#endif
|
2024-01-18 17:47:54 +01:00
|
|
|
psa_algorithm_t alg = 0;
|
|
|
|
switch (usage) {
|
|
|
|
case PSA_KEY_USAGE_SIGN_MESSAGE:
|
|
|
|
case PSA_KEY_USAGE_SIGN_HASH:
|
|
|
|
case PSA_KEY_USAGE_VERIFY_MESSAGE:
|
|
|
|
case PSA_KEY_USAGE_VERIFY_HASH:
|
|
|
|
if (!sign_ok) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
|
|
|
#if defined(MBEDTLS_ECDSA_DETERMINISTIC)
|
|
|
|
alg = PSA_ALG_DETERMINISTIC_ECDSA(PSA_ALG_ANY_HASH);
|
|
|
|
#else
|
|
|
|
alg = PSA_ALG_ECDSA(PSA_ALG_ANY_HASH);
|
|
|
|
#endif
|
|
|
|
break;
|
|
|
|
case PSA_KEY_USAGE_DERIVE:
|
|
|
|
alg = PSA_ALG_ECDH;
|
|
|
|
if (!derive_ok) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
|
|
|
if (want_private && !has_private) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
|
|
|
psa_set_key_type(attributes, (want_private ?
|
|
|
|
PSA_KEY_TYPE_ECC_KEY_PAIR(family) :
|
|
|
|
PSA_KEY_TYPE_ECC_PUBLIC_KEY(family)));
|
|
|
|
psa_set_key_bits(attributes, bits);
|
|
|
|
psa_set_key_algorithm(attributes, alg);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
#endif /* MBEDTLS_PK_HAVE_ECC_KEYS */
|
|
|
|
|
2024-01-18 14:11:26 +01:00
|
|
|
#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
|
|
|
|
case MBEDTLS_PK_RSA_ALT:
|
|
|
|
return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
|
|
|
|
#endif /* MBEDTLS_PK_RSA_ALT_SUPPORT */
|
|
|
|
|
2024-01-22 20:53:21 +01:00
|
|
|
#if defined(MBEDTLS_USE_PSA_CRYPTO)
|
|
|
|
case MBEDTLS_PK_OPAQUE:
|
|
|
|
{
|
|
|
|
psa_key_attributes_t old_attributes = PSA_KEY_ATTRIBUTES_INIT;
|
|
|
|
psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
|
|
|
|
status = psa_get_key_attributes(pk->priv_id, &old_attributes);
|
|
|
|
if (status != PSA_SUCCESS) {
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
|
|
|
}
|
|
|
|
psa_key_type_t old_type = psa_get_key_type(&old_attributes);
|
|
|
|
switch (usage) {
|
|
|
|
case PSA_KEY_USAGE_SIGN_MESSAGE:
|
|
|
|
case PSA_KEY_USAGE_SIGN_HASH:
|
|
|
|
case PSA_KEY_USAGE_VERIFY_MESSAGE:
|
|
|
|
case PSA_KEY_USAGE_VERIFY_HASH:
|
|
|
|
if (!(PSA_KEY_TYPE_IS_ECC_KEY_PAIR(old_type) ||
|
|
|
|
old_type == PSA_KEY_TYPE_RSA_KEY_PAIR)) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case PSA_KEY_USAGE_DECRYPT:
|
|
|
|
case PSA_KEY_USAGE_ENCRYPT:
|
|
|
|
if (old_type != PSA_KEY_TYPE_RSA_KEY_PAIR) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case PSA_KEY_USAGE_DERIVE:
|
|
|
|
if (!(PSA_KEY_TYPE_IS_ECC_KEY_PAIR(old_type))) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
|
|
|
psa_key_type_t new_type = old_type;
|
|
|
|
/* Opaque keys are always key pairs, so we don't need a check
|
|
|
|
* on the input if the required usage is private. We just need
|
|
|
|
* to adjust the type correctly if the required usage is public. */
|
2024-01-23 17:03:31 +01:00
|
|
|
if (!want_private) {
|
2024-01-22 20:53:21 +01:00
|
|
|
new_type = PSA_KEY_TYPE_PUBLIC_KEY_OF_KEY_PAIR(new_type);
|
|
|
|
}
|
|
|
|
more_usage = psa_get_key_usage_flags(&old_attributes);
|
2024-02-01 21:26:54 +01:00
|
|
|
if ((usage & more_usage) == 0) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
2024-01-22 20:53:21 +01:00
|
|
|
psa_set_key_type(attributes, new_type);
|
|
|
|
psa_set_key_bits(attributes, psa_get_key_bits(&old_attributes));
|
|
|
|
psa_set_key_algorithm(attributes, psa_get_key_algorithm(&old_attributes));
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
#endif /* MBEDTLS_USE_PSA_CRYPTO */
|
|
|
|
|
2024-01-18 14:11:26 +01:00
|
|
|
default:
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
|
|
|
}
|
|
|
|
|
2024-01-18 17:47:54 +01:00
|
|
|
psa_set_key_usage_flags(attributes, more_usage);
|
2024-01-18 14:14:24 +01:00
|
|
|
psa_set_key_enrollment_algorithm(attributes, PSA_ALG_NONE);
|
2024-01-18 14:11:26 +01:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
2024-02-09 19:26:37 +01:00
|
|
|
|
|
|
|
#if defined(MBEDTLS_PK_USE_PSA_EC_DATA) || defined(MBEDTLS_USE_PSA_CRYPTO)
|
|
|
|
static psa_status_t export_import_into_psa(mbedtls_svc_key_id_t old_key_id,
|
|
|
|
const psa_key_attributes_t *attributes,
|
|
|
|
mbedtls_svc_key_id_t *new_key_id)
|
|
|
|
{
|
|
|
|
unsigned char key_buffer[PSA_EXPORT_KEY_PAIR_MAX_SIZE];
|
|
|
|
size_t key_length = 0;
|
|
|
|
psa_status_t status = psa_export_key(old_key_id,
|
|
|
|
key_buffer, sizeof(key_buffer),
|
|
|
|
&key_length);
|
|
|
|
if (status != PSA_SUCCESS) {
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
status = psa_import_key(attributes, key_buffer, key_length, new_key_id);
|
|
|
|
mbedtls_platform_zeroize(key_buffer, key_length);
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int copy_into_psa(mbedtls_svc_key_id_t old_key_id,
|
|
|
|
const psa_key_attributes_t *attributes,
|
|
|
|
mbedtls_svc_key_id_t *new_key_id)
|
|
|
|
{
|
|
|
|
/* Normally, we prefer copying: it's more efficient and works even
|
|
|
|
* for non-exportable keys. */
|
|
|
|
psa_status_t status = psa_copy_key(old_key_id, attributes, new_key_id);
|
|
|
|
if (status == PSA_ERROR_NOT_PERMITTED /*missing COPY usage*/ ||
|
|
|
|
status == PSA_ERROR_INVALID_ARGUMENT /*incompatible policy*/) {
|
|
|
|
/* There are edge cases where copying won't work, but export+import
|
|
|
|
* might:
|
|
|
|
* - If the old key does not allow PSA_KEY_USAGE_COPY.
|
|
|
|
* - If the old key's usage does not allow what attributes wants.
|
|
|
|
* Because the key was intended for use in the pk module, and may
|
|
|
|
* have had a policy chosen solely for what pk needs rather than
|
|
|
|
* based on a detailed understanding of PSA policies, we are a bit
|
|
|
|
* more liberal than psa_copy_key() here.
|
|
|
|
*/
|
|
|
|
/* Here we need to check that the types match, otherwise we risk
|
|
|
|
* importing nonsensical data. */
|
|
|
|
psa_key_attributes_t old_attributes = PSA_KEY_ATTRIBUTES_INIT;
|
|
|
|
status = psa_get_key_attributes(old_key_id, &old_attributes);
|
|
|
|
if (status != PSA_SUCCESS) {
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
|
|
|
}
|
|
|
|
psa_key_type_t old_type = psa_get_key_type(&old_attributes);
|
|
|
|
psa_reset_key_attributes(&old_attributes);
|
|
|
|
if (old_type != psa_get_key_type(attributes)) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
|
|
|
status = export_import_into_psa(old_key_id, attributes, new_key_id);
|
|
|
|
}
|
|
|
|
return PSA_PK_TO_MBEDTLS_ERR(status);
|
|
|
|
}
|
|
|
|
#endif /* MBEDTLS_PK_USE_PSA_EC_DATA || MBEDTLS_USE_PSA_CRYPTO */
|
|
|
|
|
|
|
|
static int import_pair_into_psa(const mbedtls_pk_context *pk,
|
|
|
|
const psa_key_attributes_t *attributes,
|
|
|
|
mbedtls_svc_key_id_t *key_id)
|
|
|
|
{
|
|
|
|
switch (mbedtls_pk_get_type(pk)) {
|
|
|
|
#if defined(MBEDTLS_RSA_C)
|
|
|
|
case MBEDTLS_PK_RSA:
|
|
|
|
{
|
|
|
|
if (psa_get_key_type(attributes) != PSA_KEY_TYPE_RSA_KEY_PAIR) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
|
|
|
unsigned char key_buffer[
|
|
|
|
PSA_KEY_EXPORT_RSA_KEY_PAIR_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS)];
|
|
|
|
unsigned char *const key_end = key_buffer + sizeof(key_buffer);
|
|
|
|
unsigned char *key_data = key_end;
|
|
|
|
int ret = mbedtls_rsa_write_key(mbedtls_pk_rsa(*pk),
|
|
|
|
key_buffer, &key_data);
|
|
|
|
if (ret < 0) {
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
size_t key_length = key_end - key_data;
|
|
|
|
ret = PSA_PK_TO_MBEDTLS_ERR(psa_import_key(attributes,
|
|
|
|
key_data, key_length,
|
|
|
|
key_id));
|
|
|
|
mbedtls_platform_zeroize(key_data, key_length);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
#endif /* MBEDTLS_RSA_C */
|
|
|
|
|
|
|
|
#if defined(MBEDTLS_PK_HAVE_ECC_KEYS)
|
|
|
|
case MBEDTLS_PK_ECKEY:
|
|
|
|
case MBEDTLS_PK_ECKEY_DH:
|
|
|
|
case MBEDTLS_PK_ECDSA:
|
|
|
|
{
|
|
|
|
/* We need to check the curve family, otherwise the import could
|
|
|
|
* succeed with nonsensical data.
|
|
|
|
* We don't check the bit-size: it's optional in attributes,
|
|
|
|
* and if it's specified, psa_import_key() will know from the key
|
|
|
|
* data length and will check that the bit-size matches. */
|
|
|
|
psa_key_type_t to_type = psa_get_key_type(attributes);
|
|
|
|
#if defined(MBEDTLS_PK_USE_PSA_EC_DATA)
|
|
|
|
psa_ecc_family_t from_family = pk->ec_family;
|
|
|
|
#else /* MBEDTLS_PK_USE_PSA_EC_DATA */
|
2024-02-28 14:21:32 +01:00
|
|
|
const mbedtls_ecp_keypair *ec = mbedtls_pk_ec_ro(*pk);
|
2024-02-09 19:26:37 +01:00
|
|
|
size_t from_bits = 0;
|
|
|
|
psa_ecc_family_t from_family = mbedtls_ecc_group_to_psa(ec->grp.id,
|
|
|
|
&from_bits);
|
|
|
|
#endif /* MBEDTLS_PK_USE_PSA_EC_DATA */
|
|
|
|
if (to_type != PSA_KEY_TYPE_ECC_KEY_PAIR(from_family)) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
|
|
|
|
|
|
|
#if defined(MBEDTLS_PK_USE_PSA_EC_DATA)
|
|
|
|
if (mbedtls_svc_key_id_is_null(pk->priv_id)) {
|
|
|
|
/* We have a public key and want a key pair. */
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
|
|
|
return copy_into_psa(pk->priv_id, attributes, key_id);
|
|
|
|
#else /* MBEDTLS_PK_USE_PSA_EC_DATA */
|
|
|
|
if (ec->d.n == 0) {
|
|
|
|
/* Private key not set. Assume the input is a public key only.
|
|
|
|
* (The other possibility is that it's an incomplete object
|
|
|
|
* where the group is set but neither the public key nor
|
|
|
|
* the private key. This is not possible through ecp.h
|
|
|
|
* functions, so we don't bother reporting a more suitable
|
|
|
|
* error in that case.) */
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
|
|
|
unsigned char key_buffer[PSA_BITS_TO_BYTES(PSA_VENDOR_ECC_MAX_CURVE_BITS)];
|
2024-02-28 14:21:32 +01:00
|
|
|
size_t key_length = 0;
|
|
|
|
int ret = mbedtls_ecp_write_key_ext(ec, &key_length,
|
|
|
|
key_buffer, sizeof(key_buffer));
|
2024-02-09 19:26:37 +01:00
|
|
|
if (ret < 0) {
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
ret = PSA_PK_TO_MBEDTLS_ERR(psa_import_key(attributes,
|
2024-02-15 17:26:07 +01:00
|
|
|
key_buffer, key_length,
|
2024-02-09 19:26:37 +01:00
|
|
|
key_id));
|
2024-02-15 17:26:07 +01:00
|
|
|
mbedtls_platform_zeroize(key_buffer, key_length);
|
2024-02-09 19:26:37 +01:00
|
|
|
return ret;
|
|
|
|
#endif /* MBEDTLS_PK_USE_PSA_EC_DATA */
|
|
|
|
}
|
|
|
|
#endif /* MBEDTLS_PK_HAVE_ECC_KEYS */
|
|
|
|
|
|
|
|
#if defined(MBEDTLS_USE_PSA_CRYPTO)
|
|
|
|
case MBEDTLS_PK_OPAQUE:
|
|
|
|
return copy_into_psa(pk->priv_id, attributes, key_id);
|
|
|
|
#endif /* MBEDTLS_USE_PSA_CRYPTO */
|
|
|
|
|
|
|
|
default:
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static int import_public_into_psa(const mbedtls_pk_context *pk,
|
|
|
|
const psa_key_attributes_t *attributes,
|
|
|
|
mbedtls_svc_key_id_t *key_id)
|
|
|
|
{
|
|
|
|
psa_key_type_t psa_type = psa_get_key_type(attributes);
|
|
|
|
|
|
|
|
#if defined(MBEDTLS_RSA_C) || \
|
|
|
|
(defined(MBEDTLS_PK_HAVE_ECC_KEYS) && !defined(MBEDTLS_PK_USE_PSA_EC_DATA)) || \
|
|
|
|
defined(MBEDTLS_USE_PSA_CRYPTO)
|
|
|
|
unsigned char key_buffer[PSA_EXPORT_PUBLIC_KEY_MAX_SIZE];
|
|
|
|
#endif
|
|
|
|
unsigned char *key_data = NULL;
|
|
|
|
size_t key_length = 0;
|
|
|
|
|
|
|
|
switch (mbedtls_pk_get_type(pk)) {
|
|
|
|
#if defined(MBEDTLS_RSA_C)
|
|
|
|
case MBEDTLS_PK_RSA:
|
|
|
|
{
|
|
|
|
if (psa_type != PSA_KEY_TYPE_RSA_PUBLIC_KEY) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
|
|
|
unsigned char *const key_end = key_buffer + sizeof(key_buffer);
|
|
|
|
key_data = key_end;
|
|
|
|
int ret = mbedtls_rsa_write_pubkey(mbedtls_pk_rsa(*pk),
|
|
|
|
key_buffer, &key_data);
|
|
|
|
if (ret < 0) {
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
key_length = (size_t) ret;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
#endif /*MBEDTLS_RSA_C */
|
|
|
|
|
|
|
|
#if defined(MBEDTLS_PK_HAVE_ECC_KEYS)
|
|
|
|
case MBEDTLS_PK_ECKEY:
|
|
|
|
case MBEDTLS_PK_ECKEY_DH:
|
|
|
|
case MBEDTLS_PK_ECDSA:
|
|
|
|
{
|
|
|
|
/* We need to check the curve family, otherwise the import could
|
|
|
|
* succeed with nonsensical data.
|
|
|
|
* We don't check the bit-size: it's optional in attributes,
|
|
|
|
* and if it's specified, psa_import_key() will know from the key
|
|
|
|
* data length and will check that the bit-size matches. */
|
|
|
|
#if defined(MBEDTLS_PK_USE_PSA_EC_DATA)
|
|
|
|
if (psa_type != PSA_KEY_TYPE_ECC_PUBLIC_KEY(pk->ec_family)) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
|
|
|
key_data = (unsigned char *) pk->pub_raw;
|
|
|
|
key_length = pk->pub_raw_len;
|
|
|
|
#else /* MBEDTLS_PK_USE_PSA_EC_DATA */
|
|
|
|
const mbedtls_ecp_keypair *ec = mbedtls_pk_ec_ro(*pk);
|
|
|
|
size_t from_bits = 0;
|
|
|
|
psa_ecc_family_t from_family = mbedtls_ecc_group_to_psa(ec->grp.id,
|
|
|
|
&from_bits);
|
2024-02-12 14:18:26 +01:00
|
|
|
if (psa_type != PSA_KEY_TYPE_ECC_PUBLIC_KEY(from_family)) {
|
2024-02-09 19:26:37 +01:00
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
|
|
|
int ret = mbedtls_ecp_write_public_key(
|
|
|
|
ec, MBEDTLS_ECP_PF_UNCOMPRESSED,
|
|
|
|
&key_length, key_buffer, sizeof(key_buffer));
|
|
|
|
if (ret < 0) {
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
key_data = key_buffer;
|
|
|
|
#endif /* MBEDTLS_PK_USE_PSA_EC_DATA */
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
#endif /* MBEDTLS_PK_HAVE_ECC_KEYS */
|
|
|
|
|
|
|
|
#if defined(MBEDTLS_USE_PSA_CRYPTO)
|
|
|
|
case MBEDTLS_PK_OPAQUE:
|
|
|
|
{
|
|
|
|
psa_key_attributes_t old_attributes = PSA_KEY_ATTRIBUTES_INIT;
|
|
|
|
psa_status_t status =
|
|
|
|
psa_get_key_attributes(pk->priv_id, &old_attributes);
|
|
|
|
if (status != PSA_SUCCESS) {
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
|
|
|
}
|
|
|
|
psa_key_type_t old_type = psa_get_key_type(&old_attributes);
|
|
|
|
psa_reset_key_attributes(&old_attributes);
|
|
|
|
if (psa_type != PSA_KEY_TYPE_PUBLIC_KEY_OF_KEY_PAIR(old_type)) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
|
|
|
status = psa_export_public_key(pk->priv_id,
|
|
|
|
key_buffer, sizeof(key_buffer),
|
|
|
|
&key_length);
|
|
|
|
if (status != PSA_SUCCESS) {
|
|
|
|
return PSA_PK_TO_MBEDTLS_ERR(status);
|
|
|
|
}
|
|
|
|
key_data = key_buffer;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
#endif /* MBEDTLS_USE_PSA_CRYPTO */
|
|
|
|
|
|
|
|
default:
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
|
|
|
}
|
|
|
|
|
|
|
|
return PSA_PK_TO_MBEDTLS_ERR(psa_import_key(attributes,
|
|
|
|
key_data, key_length,
|
|
|
|
key_id));
|
|
|
|
}
|
|
|
|
|
|
|
|
int mbedtls_pk_import_into_psa(const mbedtls_pk_context *pk,
|
|
|
|
const psa_key_attributes_t *attributes,
|
|
|
|
mbedtls_svc_key_id_t *key_id)
|
|
|
|
{
|
|
|
|
/* Set the output immediately so that it won't contain garbage even
|
|
|
|
* if we error out before calling psa_import_key(). */
|
|
|
|
*key_id = MBEDTLS_SVC_KEY_ID_INIT;
|
|
|
|
|
|
|
|
#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
|
|
|
|
if (mbedtls_pk_get_type(pk) == MBEDTLS_PK_RSA_ALT) {
|
|
|
|
return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
|
|
|
|
}
|
|
|
|
#endif /* MBEDTLS_PK_RSA_ALT_SUPPORT */
|
|
|
|
|
|
|
|
int want_public = PSA_KEY_TYPE_IS_PUBLIC_KEY(psa_get_key_type(attributes));
|
|
|
|
if (want_public) {
|
|
|
|
return import_public_into_psa(pk, attributes, key_id);
|
|
|
|
} else {
|
|
|
|
return import_pair_into_psa(pk, attributes, key_id);
|
|
|
|
}
|
|
|
|
}
|
2024-01-24 13:40:09 +01:00
|
|
|
#endif /* MBEDTLS_PSA_CRYPTO_C */
|
2024-01-18 14:11:26 +01:00
|
|
|
|
2013-08-22 14:55:30 +02:00
|
|
|
/*
|
2015-04-08 12:49:31 +02:00
|
|
|
* Helper for mbedtls_pk_sign and mbedtls_pk_verify
|
2013-08-22 14:55:30 +02:00
|
|
|
*/
|
2023-01-11 14:50:10 +01:00
|
|
|
static inline int pk_hashlen_helper(mbedtls_md_type_t md_alg, size_t *hash_len)
|
2013-08-22 14:55:30 +02:00
|
|
|
{
|
2023-01-11 14:50:10 +01:00
|
|
|
if (*hash_len != 0) {
|
|
|
|
return 0;
|
|
|
|
}
|
2013-08-22 14:55:30 +02:00
|
|
|
|
2023-03-28 11:14:24 +02:00
|
|
|
*hash_len = mbedtls_md_get_size_from_type(md_alg);
|
2022-07-05 11:55:20 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (*hash_len == 0) {
|
|
|
|
return -1;
|
|
|
|
}
|
2013-08-22 14:55:30 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
return 0;
|
2013-08-22 14:55:30 +02:00
|
|
|
}
|
|
|
|
|
2017-08-18 17:30:37 +02:00
|
|
|
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
|
2017-08-18 16:22:06 +02:00
|
|
|
/*
|
|
|
|
* Helper to set up a restart context if needed
|
|
|
|
*/
|
2023-01-11 14:50:10 +01:00
|
|
|
static int pk_restart_setup(mbedtls_pk_restart_ctx *ctx,
|
|
|
|
const mbedtls_pk_info_t *info)
|
2017-08-18 16:22:06 +02:00
|
|
|
{
|
2018-07-02 13:09:39 +02:00
|
|
|
/* Don't do anything if already set up or invalid */
|
2023-01-11 14:50:10 +01:00
|
|
|
if (ctx == NULL || ctx->pk_info != NULL) {
|
|
|
|
return 0;
|
|
|
|
}
|
2017-08-18 16:22:06 +02:00
|
|
|
|
|
|
|
/* Should never happen when we're called */
|
2023-01-11 14:50:10 +01:00
|
|
|
if (info->rs_alloc_func == NULL || info->rs_free_func == NULL) {
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
|
|
|
}
|
2017-08-18 16:22:06 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if ((ctx->rs_ctx = info->rs_alloc_func()) == NULL) {
|
|
|
|
return MBEDTLS_ERR_PK_ALLOC_FAILED;
|
|
|
|
}
|
2017-08-18 16:22:06 +02:00
|
|
|
|
|
|
|
ctx->pk_info = info;
|
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
return 0;
|
2017-08-18 16:22:06 +02:00
|
|
|
}
|
2017-08-18 17:30:37 +02:00
|
|
|
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
|
2017-08-18 16:22:06 +02:00
|
|
|
|
2013-08-14 15:56:19 +02:00
|
|
|
/*
|
2017-05-03 10:59:45 +02:00
|
|
|
* Verify a signature (restartable)
|
2013-08-14 15:56:19 +02:00
|
|
|
*/
|
2023-01-11 14:50:10 +01:00
|
|
|
int mbedtls_pk_verify_restartable(mbedtls_pk_context *ctx,
|
|
|
|
mbedtls_md_type_t md_alg,
|
|
|
|
const unsigned char *hash, size_t hash_len,
|
|
|
|
const unsigned char *sig, size_t sig_len,
|
|
|
|
mbedtls_pk_restart_ctx *rs_ctx)
|
2013-08-14 15:56:19 +02:00
|
|
|
{
|
2023-01-11 14:50:10 +01:00
|
|
|
if ((md_alg != MBEDTLS_MD_NONE || hash_len != 0) && hash == NULL) {
|
2022-07-29 15:51:50 +02:00
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
2023-01-11 14:50:10 +01:00
|
|
|
}
|
2019-01-31 14:20:20 +01:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (ctx->pk_info == NULL ||
|
|
|
|
pk_hashlen_helper(md_alg, &hash_len) != 0) {
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
|
|
|
}
|
2013-08-14 15:56:19 +02:00
|
|
|
|
2017-08-18 17:30:37 +02:00
|
|
|
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
|
2017-08-18 17:40:15 +02:00
|
|
|
/* optimization: use non-restartable version if restart disabled */
|
2023-01-11 14:50:10 +01:00
|
|
|
if (rs_ctx != NULL &&
|
2018-10-16 10:41:31 +02:00
|
|
|
mbedtls_ecp_restart_is_enabled() &&
|
2023-01-11 14:50:10 +01:00
|
|
|
ctx->pk_info->verify_rs_func != NULL) {
|
2019-11-22 14:21:35 +01:00
|
|
|
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
|
2017-08-18 16:22:06 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if ((ret = pk_restart_setup(rs_ctx, ctx->pk_info)) != 0) {
|
|
|
|
return ret;
|
|
|
|
}
|
2017-08-18 16:22:06 +02:00
|
|
|
|
2023-04-20 09:56:30 +02:00
|
|
|
ret = ctx->pk_info->verify_rs_func(ctx,
|
2023-01-11 14:50:10 +01:00
|
|
|
md_alg, hash, hash_len, sig, sig_len, rs_ctx->rs_ctx);
|
2017-08-18 16:22:06 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (ret != MBEDTLS_ERR_ECP_IN_PROGRESS) {
|
|
|
|
mbedtls_pk_restart_free(rs_ctx);
|
|
|
|
}
|
2017-08-18 16:22:06 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
return ret;
|
2017-05-09 10:42:40 +02:00
|
|
|
}
|
2017-08-18 17:30:37 +02:00
|
|
|
#else /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
|
2017-05-09 10:42:40 +02:00
|
|
|
(void) rs_ctx;
|
2017-08-18 17:30:37 +02:00
|
|
|
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
|
2017-05-09 10:42:40 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (ctx->pk_info->verify_func == NULL) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
2013-08-17 15:20:06 +02:00
|
|
|
|
2023-04-20 09:56:30 +02:00
|
|
|
return ctx->pk_info->verify_func(ctx, md_alg, hash, hash_len,
|
2023-01-11 14:50:10 +01:00
|
|
|
sig, sig_len);
|
2013-08-14 15:56:19 +02:00
|
|
|
}
|
|
|
|
|
2017-05-03 10:59:45 +02:00
|
|
|
/*
|
|
|
|
* Verify a signature
|
|
|
|
*/
|
2023-01-11 14:50:10 +01:00
|
|
|
int mbedtls_pk_verify(mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
|
|
|
|
const unsigned char *hash, size_t hash_len,
|
|
|
|
const unsigned char *sig, size_t sig_len)
|
2017-05-03 10:59:45 +02:00
|
|
|
{
|
2023-01-11 14:50:10 +01:00
|
|
|
return mbedtls_pk_verify_restartable(ctx, md_alg, hash, hash_len,
|
|
|
|
sig, sig_len, NULL);
|
2017-05-03 10:59:45 +02:00
|
|
|
}
|
|
|
|
|
2014-06-05 13:41:44 +02:00
|
|
|
/*
|
|
|
|
* Verify a signature with options
|
|
|
|
*/
|
2023-01-11 14:50:10 +01:00
|
|
|
int mbedtls_pk_verify_ext(mbedtls_pk_type_t type, const void *options,
|
|
|
|
mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
|
|
|
|
const unsigned char *hash, size_t hash_len,
|
|
|
|
const unsigned char *sig, size_t sig_len)
|
2014-06-05 13:41:44 +02:00
|
|
|
{
|
2023-01-11 14:50:10 +01:00
|
|
|
if ((md_alg != MBEDTLS_MD_NONE || hash_len != 0) && hash == NULL) {
|
2022-07-29 15:51:50 +02:00
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
2023-01-11 14:50:10 +01:00
|
|
|
}
|
2019-01-31 14:20:20 +01:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (ctx->pk_info == NULL) {
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
|
|
|
}
|
2014-06-05 13:41:44 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (!mbedtls_pk_can_do(ctx, type)) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
2014-06-05 13:41:44 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (type != MBEDTLS_PK_RSASSA_PSS) {
|
2022-02-09 20:13:44 +01:00
|
|
|
/* General case: no options */
|
2023-01-11 14:50:10 +01:00
|
|
|
if (options != NULL) {
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
|
|
|
}
|
2022-02-09 20:13:44 +01:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
return mbedtls_pk_verify(ctx, md_alg, hash, hash_len, sig, sig_len);
|
2022-02-09 20:13:44 +01:00
|
|
|
}
|
|
|
|
|
2015-04-08 12:49:31 +02:00
|
|
|
#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_PKCS1_V21)
|
2022-02-09 20:13:44 +01:00
|
|
|
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
|
|
|
|
const mbedtls_pk_rsassa_pss_options *pss_opts;
|
2014-06-05 13:41:44 +02:00
|
|
|
|
2023-09-28 18:17:07 +02:00
|
|
|
#if SIZE_MAX > UINT_MAX
|
2023-01-11 14:50:10 +01:00
|
|
|
if (md_alg == MBEDTLS_MD_NONE && UINT_MAX < hash_len) {
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
|
|
|
}
|
2023-09-28 18:17:07 +02:00
|
|
|
#endif
|
2017-01-19 12:24:33 +01:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (options == NULL) {
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
|
|
|
}
|
2014-06-05 13:41:44 +02:00
|
|
|
|
2022-02-09 20:13:44 +01:00
|
|
|
pss_opts = (const mbedtls_pk_rsassa_pss_options *) options;
|
2014-06-05 13:41:44 +02:00
|
|
|
|
2022-02-09 20:13:44 +01:00
|
|
|
#if defined(MBEDTLS_USE_PSA_CRYPTO)
|
2023-01-11 14:50:10 +01:00
|
|
|
if (pss_opts->mgf1_hash_id == md_alg) {
|
2022-06-10 12:50:00 +02:00
|
|
|
unsigned char buf[MBEDTLS_PK_RSA_PUB_DER_MAX_BYTES];
|
2022-02-09 20:13:44 +01:00
|
|
|
unsigned char *p;
|
2022-02-16 13:46:42 +01:00
|
|
|
int key_len;
|
|
|
|
size_t signature_length;
|
2022-02-17 16:51:15 +01:00
|
|
|
psa_status_t status = PSA_ERROR_DATA_CORRUPT;
|
|
|
|
psa_status_t destruction_status = PSA_ERROR_DATA_CORRUPT;
|
2022-02-16 13:46:42 +01:00
|
|
|
|
2023-03-28 11:38:08 +02:00
|
|
|
psa_algorithm_t psa_md_alg = mbedtls_md_psa_alg_from_type(md_alg);
|
2022-02-09 20:13:44 +01:00
|
|
|
mbedtls_svc_key_id_t key_id = MBEDTLS_SVC_KEY_ID_INIT;
|
|
|
|
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
|
2023-01-11 14:50:10 +01:00
|
|
|
psa_algorithm_t psa_sig_alg = PSA_ALG_RSA_PSS_ANY_SALT(psa_md_alg);
|
|
|
|
p = buf + sizeof(buf);
|
|
|
|
key_len = mbedtls_pk_write_pubkey(&p, buf, ctx);
|
|
|
|
|
|
|
|
if (key_len < 0) {
|
|
|
|
return key_len;
|
|
|
|
}
|
|
|
|
|
|
|
|
psa_set_key_type(&attributes, PSA_KEY_TYPE_RSA_PUBLIC_KEY);
|
|
|
|
psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_VERIFY_HASH);
|
|
|
|
psa_set_key_algorithm(&attributes, psa_sig_alg);
|
|
|
|
|
|
|
|
status = psa_import_key(&attributes,
|
|
|
|
buf + sizeof(buf) - key_len, key_len,
|
|
|
|
&key_id);
|
|
|
|
if (status != PSA_SUCCESS) {
|
|
|
|
psa_destroy_key(key_id);
|
2022-12-23 17:00:06 +01:00
|
|
|
return PSA_PK_TO_MBEDTLS_ERR(status);
|
2022-02-09 20:13:44 +01:00
|
|
|
}
|
|
|
|
|
2022-02-16 12:13:35 +01:00
|
|
|
/* This function requires returning MBEDTLS_ERR_PK_SIG_LEN_MISMATCH
|
|
|
|
* on a valid signature with trailing data in a buffer, but
|
|
|
|
* mbedtls_psa_rsa_verify_hash requires the sig_len to be exact,
|
|
|
|
* so for this reason the passed sig_len is overwritten. Smaller
|
|
|
|
* signature lengths should not be accepted for verification. */
|
2023-01-11 14:50:10 +01:00
|
|
|
signature_length = sig_len > mbedtls_pk_get_len(ctx) ?
|
|
|
|
mbedtls_pk_get_len(ctx) : sig_len;
|
|
|
|
status = psa_verify_hash(key_id, psa_sig_alg, hash,
|
|
|
|
hash_len, sig, signature_length);
|
|
|
|
destruction_status = psa_destroy_key(key_id);
|
|
|
|
|
|
|
|
if (status == PSA_SUCCESS && sig_len > mbedtls_pk_get_len(ctx)) {
|
|
|
|
return MBEDTLS_ERR_PK_SIG_LEN_MISMATCH;
|
|
|
|
}
|
2022-02-15 14:23:02 +01:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (status == PSA_SUCCESS) {
|
2022-02-17 16:51:15 +01:00
|
|
|
status = destruction_status;
|
2023-01-11 14:50:10 +01:00
|
|
|
}
|
2022-02-17 16:51:15 +01:00
|
|
|
|
2022-12-23 17:00:06 +01:00
|
|
|
return PSA_PK_RSA_TO_MBEDTLS_ERR(status);
|
2023-01-11 14:50:10 +01:00
|
|
|
} else
|
2023-07-16 12:06:06 +02:00
|
|
|
#endif /* MBEDTLS_USE_PSA_CRYPTO */
|
2022-02-09 20:13:44 +01:00
|
|
|
{
|
2023-01-11 14:50:10 +01:00
|
|
|
if (sig_len < mbedtls_pk_get_len(ctx)) {
|
|
|
|
return MBEDTLS_ERR_RSA_VERIFY_FAILED;
|
|
|
|
}
|
2014-06-05 13:41:44 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
ret = mbedtls_rsa_rsassa_pss_verify_ext(mbedtls_pk_rsa(*ctx),
|
|
|
|
md_alg, (unsigned int) hash_len, hash,
|
|
|
|
pss_opts->mgf1_hash_id,
|
|
|
|
pss_opts->expected_salt_len,
|
|
|
|
sig);
|
|
|
|
if (ret != 0) {
|
|
|
|
return ret;
|
|
|
|
}
|
2014-06-05 13:41:44 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (sig_len > mbedtls_pk_get_len(ctx)) {
|
|
|
|
return MBEDTLS_ERR_PK_SIG_LEN_MISMATCH;
|
|
|
|
}
|
2022-02-15 14:18:44 +01:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
return 0;
|
2022-02-09 20:13:44 +01:00
|
|
|
}
|
2014-06-05 13:41:44 +02:00
|
|
|
#else
|
2023-01-11 14:50:10 +01:00
|
|
|
return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
|
2017-01-19 12:24:33 +01:00
|
|
|
#endif /* MBEDTLS_RSA_C && MBEDTLS_PKCS1_V21 */
|
2014-06-05 13:41:44 +02:00
|
|
|
}
|
|
|
|
|
2013-08-21 10:34:38 +02:00
|
|
|
/*
|
2017-05-03 10:59:45 +02:00
|
|
|
* Make a signature (restartable)
|
2013-08-21 10:34:38 +02:00
|
|
|
*/
|
2023-01-11 14:50:10 +01:00
|
|
|
int mbedtls_pk_sign_restartable(mbedtls_pk_context *ctx,
|
|
|
|
mbedtls_md_type_t md_alg,
|
|
|
|
const unsigned char *hash, size_t hash_len,
|
|
|
|
unsigned char *sig, size_t sig_size, size_t *sig_len,
|
|
|
|
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
|
|
|
|
mbedtls_pk_restart_ctx *rs_ctx)
|
2013-08-21 10:34:38 +02:00
|
|
|
{
|
2023-01-11 14:50:10 +01:00
|
|
|
if ((md_alg != MBEDTLS_MD_NONE || hash_len != 0) && hash == NULL) {
|
2022-07-29 15:51:50 +02:00
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
2023-01-11 14:50:10 +01:00
|
|
|
}
|
2019-01-31 14:20:20 +01:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (ctx->pk_info == NULL || pk_hashlen_helper(md_alg, &hash_len) != 0) {
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
|
|
|
}
|
2013-08-21 10:34:38 +02:00
|
|
|
|
2017-08-18 17:30:37 +02:00
|
|
|
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
|
2017-08-18 17:40:15 +02:00
|
|
|
/* optimization: use non-restartable version if restart disabled */
|
2023-01-11 14:50:10 +01:00
|
|
|
if (rs_ctx != NULL &&
|
2018-10-16 10:41:31 +02:00
|
|
|
mbedtls_ecp_restart_is_enabled() &&
|
2023-01-11 14:50:10 +01:00
|
|
|
ctx->pk_info->sign_rs_func != NULL) {
|
2019-11-22 14:21:35 +01:00
|
|
|
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
|
2017-08-18 16:22:06 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if ((ret = pk_restart_setup(rs_ctx, ctx->pk_info)) != 0) {
|
|
|
|
return ret;
|
|
|
|
}
|
2017-08-18 16:22:06 +02:00
|
|
|
|
2023-04-20 09:56:30 +02:00
|
|
|
ret = ctx->pk_info->sign_rs_func(ctx, md_alg,
|
2023-01-11 14:50:10 +01:00
|
|
|
hash, hash_len,
|
|
|
|
sig, sig_size, sig_len,
|
|
|
|
f_rng, p_rng, rs_ctx->rs_ctx);
|
2017-08-18 16:22:06 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (ret != MBEDTLS_ERR_ECP_IN_PROGRESS) {
|
|
|
|
mbedtls_pk_restart_free(rs_ctx);
|
|
|
|
}
|
2017-08-18 16:22:06 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
return ret;
|
2017-05-09 10:42:40 +02:00
|
|
|
}
|
2017-08-18 17:30:37 +02:00
|
|
|
#else /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
|
2017-05-09 10:42:40 +02:00
|
|
|
(void) rs_ctx;
|
2017-08-18 17:30:37 +02:00
|
|
|
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
|
2017-05-09 10:42:40 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (ctx->pk_info->sign_func == NULL) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
2013-08-21 10:34:38 +02:00
|
|
|
|
2023-04-20 09:56:30 +02:00
|
|
|
return ctx->pk_info->sign_func(ctx, md_alg,
|
2023-01-11 14:50:10 +01:00
|
|
|
hash, hash_len,
|
|
|
|
sig, sig_size, sig_len,
|
|
|
|
f_rng, p_rng);
|
2013-08-21 10:34:38 +02:00
|
|
|
}
|
|
|
|
|
2017-05-03 10:59:45 +02:00
|
|
|
/*
|
|
|
|
* Make a signature
|
|
|
|
*/
|
2023-01-11 14:50:10 +01:00
|
|
|
int mbedtls_pk_sign(mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
|
|
|
|
const unsigned char *hash, size_t hash_len,
|
|
|
|
unsigned char *sig, size_t sig_size, size_t *sig_len,
|
|
|
|
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
|
2017-05-03 10:59:45 +02:00
|
|
|
{
|
2023-01-11 14:50:10 +01:00
|
|
|
return mbedtls_pk_sign_restartable(ctx, md_alg, hash, hash_len,
|
|
|
|
sig, sig_size, sig_len,
|
|
|
|
f_rng, p_rng, NULL);
|
2017-05-03 10:59:45 +02:00
|
|
|
}
|
|
|
|
|
2022-02-24 08:52:15 +01:00
|
|
|
/*
|
2022-03-23 04:42:06 +01:00
|
|
|
* Make a signature given a signature type.
|
2022-02-24 08:52:15 +01:00
|
|
|
*/
|
2023-01-11 14:50:10 +01:00
|
|
|
int mbedtls_pk_sign_ext(mbedtls_pk_type_t pk_type,
|
|
|
|
mbedtls_pk_context *ctx,
|
|
|
|
mbedtls_md_type_t md_alg,
|
|
|
|
const unsigned char *hash, size_t hash_len,
|
|
|
|
unsigned char *sig, size_t sig_size, size_t *sig_len,
|
|
|
|
int (*f_rng)(void *, unsigned char *, size_t),
|
|
|
|
void *p_rng)
|
2022-02-24 08:52:15 +01:00
|
|
|
{
|
2023-01-11 14:50:10 +01:00
|
|
|
if (ctx->pk_info == NULL) {
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
|
|
|
}
|
2022-02-24 08:52:15 +01:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (!mbedtls_pk_can_do(ctx, pk_type)) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
2022-02-24 08:52:15 +01:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (pk_type != MBEDTLS_PK_RSASSA_PSS) {
|
|
|
|
return mbedtls_pk_sign(ctx, md_alg, hash, hash_len,
|
|
|
|
sig, sig_size, sig_len, f_rng, p_rng);
|
2022-04-21 12:08:52 +02:00
|
|
|
}
|
|
|
|
|
2023-07-16 12:06:06 +02:00
|
|
|
#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_PKCS1_V21)
|
|
|
|
|
|
|
|
#if defined(MBEDTLS_USE_PSA_CRYPTO)
|
|
|
|
const psa_algorithm_t psa_md_alg = mbedtls_md_psa_alg_from_type(md_alg);
|
2023-01-11 14:50:10 +01:00
|
|
|
if (psa_md_alg == 0) {
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
|
|
|
}
|
2022-04-21 12:08:52 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (mbedtls_pk_get_type(ctx) == MBEDTLS_PK_OPAQUE) {
|
2024-02-27 16:21:12 +01:00
|
|
|
psa_key_attributes_t key_attr = PSA_KEY_ATTRIBUTES_INIT;
|
|
|
|
psa_algorithm_t psa_alg, psa_enrollment_alg, sign_alg;
|
2022-04-12 15:11:49 +02:00
|
|
|
psa_status_t status;
|
|
|
|
|
2024-02-27 16:21:12 +01:00
|
|
|
status = psa_get_key_attributes(ctx->priv_id, &key_attr);
|
|
|
|
if (status != PSA_SUCCESS) {
|
|
|
|
return PSA_PK_RSA_TO_MBEDTLS_ERR(status);
|
|
|
|
}
|
|
|
|
psa_alg = psa_get_key_algorithm(&key_attr);
|
|
|
|
psa_enrollment_alg = psa_get_key_enrollment_algorithm(&key_attr);
|
|
|
|
psa_reset_key_attributes(&key_attr);
|
|
|
|
|
|
|
|
/* Since we're PK type is MBEDTLS_PK_RSASSA_PSS at least one between
|
|
|
|
* alg and enrollment alg should be of type RSA_PSS. */
|
|
|
|
if (PSA_ALG_IS_RSA_PSS(psa_alg)) {
|
|
|
|
sign_alg = psa_alg;
|
|
|
|
} else if (PSA_ALG_IS_RSA_PSS(psa_enrollment_alg)) {
|
|
|
|
sign_alg = psa_enrollment_alg;
|
|
|
|
} else {
|
|
|
|
/* The opaque key has no RSA PSS algorithm associated. */
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
|
|
|
}
|
|
|
|
/* Adjust the hashing algorithm. */
|
|
|
|
sign_alg = (sign_alg & ~PSA_ALG_HASH_MASK) | PSA_ALG_GET_HASH(psa_md_alg);
|
|
|
|
|
|
|
|
status = psa_sign_hash(ctx->priv_id, sign_alg,
|
2023-01-11 14:50:10 +01:00
|
|
|
hash, hash_len,
|
|
|
|
sig, sig_size, sig_len);
|
2022-12-23 17:00:06 +01:00
|
|
|
return PSA_PK_RSA_TO_MBEDTLS_ERR(status);
|
2022-04-12 15:11:49 +02:00
|
|
|
}
|
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
return mbedtls_pk_psa_rsa_sign_ext(PSA_ALG_RSA_PSS(psa_md_alg),
|
|
|
|
ctx->pk_ctx, hash, hash_len,
|
|
|
|
sig, sig_size, sig_len);
|
2023-07-16 12:06:06 +02:00
|
|
|
#else /* MBEDTLS_USE_PSA_CRYPTO */
|
|
|
|
|
|
|
|
if (sig_size < mbedtls_pk_get_len(ctx)) {
|
|
|
|
return MBEDTLS_ERR_PK_BUFFER_TOO_SMALL;
|
|
|
|
}
|
2022-02-24 08:52:15 +01:00
|
|
|
|
2023-07-16 12:06:06 +02:00
|
|
|
if (pk_hashlen_helper(md_alg, &hash_len) != 0) {
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
|
|
|
}
|
|
|
|
|
|
|
|
mbedtls_rsa_context *const rsa_ctx = mbedtls_pk_rsa(*ctx);
|
|
|
|
|
2023-12-10 13:57:51 +01:00
|
|
|
const int ret = mbedtls_rsa_rsassa_pss_sign_no_mode_check(rsa_ctx, f_rng, p_rng, md_alg,
|
|
|
|
(unsigned int) hash_len, hash, sig);
|
2023-07-16 12:06:06 +02:00
|
|
|
if (ret == 0) {
|
|
|
|
*sig_len = rsa_ctx->len;
|
|
|
|
}
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
#endif /* MBEDTLS_USE_PSA_CRYPTO */
|
|
|
|
|
|
|
|
#else
|
|
|
|
return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
|
|
|
|
#endif /* MBEDTLS_RSA_C && MBEDTLS_PKCS1_V21 */
|
2022-02-24 08:52:15 +01:00
|
|
|
}
|
|
|
|
|
2013-08-21 11:51:08 +02:00
|
|
|
/*
|
|
|
|
* Decrypt message
|
|
|
|
*/
|
2023-01-11 14:50:10 +01:00
|
|
|
int mbedtls_pk_decrypt(mbedtls_pk_context *ctx,
|
|
|
|
const unsigned char *input, size_t ilen,
|
|
|
|
unsigned char *output, size_t *olen, size_t osize,
|
|
|
|
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
|
2013-08-21 11:51:08 +02:00
|
|
|
{
|
2023-01-11 14:50:10 +01:00
|
|
|
if (ctx->pk_info == NULL) {
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
|
|
|
}
|
2013-08-21 11:51:08 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (ctx->pk_info->decrypt_func == NULL) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
2013-08-21 11:51:08 +02:00
|
|
|
|
2023-04-20 09:56:30 +02:00
|
|
|
return ctx->pk_info->decrypt_func(ctx, input, ilen,
|
2023-01-11 14:50:10 +01:00
|
|
|
output, olen, osize, f_rng, p_rng);
|
2013-08-21 11:51:08 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Encrypt message
|
|
|
|
*/
|
2023-01-11 14:50:10 +01:00
|
|
|
int mbedtls_pk_encrypt(mbedtls_pk_context *ctx,
|
|
|
|
const unsigned char *input, size_t ilen,
|
|
|
|
unsigned char *output, size_t *olen, size_t osize,
|
|
|
|
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
|
2013-08-21 11:51:08 +02:00
|
|
|
{
|
2023-01-11 14:50:10 +01:00
|
|
|
if (ctx->pk_info == NULL) {
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
|
|
|
}
|
2013-08-21 11:51:08 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (ctx->pk_info->encrypt_func == NULL) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
2013-08-21 11:51:08 +02:00
|
|
|
|
2023-04-20 09:56:30 +02:00
|
|
|
return ctx->pk_info->encrypt_func(ctx, input, ilen,
|
2023-01-11 14:50:10 +01:00
|
|
|
output, olen, osize, f_rng, p_rng);
|
2013-08-21 11:51:08 +02:00
|
|
|
}
|
|
|
|
|
2014-11-06 16:51:20 +01:00
|
|
|
/*
|
|
|
|
* Check public-private key pair
|
|
|
|
*/
|
2023-01-11 14:50:10 +01:00
|
|
|
int mbedtls_pk_check_pair(const mbedtls_pk_context *pub,
|
|
|
|
const mbedtls_pk_context *prv,
|
|
|
|
int (*f_rng)(void *, unsigned char *, size_t),
|
|
|
|
void *p_rng)
|
2014-11-06 16:51:20 +01:00
|
|
|
{
|
2023-01-11 14:50:10 +01:00
|
|
|
if (pub->pk_info == NULL ||
|
|
|
|
prv->pk_info == NULL) {
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
2014-11-06 16:51:20 +01:00
|
|
|
}
|
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (f_rng == NULL) {
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
|
|
|
}
|
2018-10-24 12:37:44 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (prv->pk_info->check_pair_func == NULL) {
|
|
|
|
return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
|
2014-11-08 17:08:08 +01:00
|
|
|
}
|
2023-01-11 14:50:10 +01:00
|
|
|
|
|
|
|
if (prv->pk_info->type == MBEDTLS_PK_RSA_ALT) {
|
|
|
|
if (pub->pk_info->type != MBEDTLS_PK_RSA) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
|
|
|
} else {
|
2023-06-01 10:59:03 +02:00
|
|
|
if ((prv->pk_info->type != MBEDTLS_PK_OPAQUE) &&
|
|
|
|
(pub->pk_info != prv->pk_info)) {
|
2023-01-11 14:50:10 +01:00
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
2014-11-06 16:51:20 +01:00
|
|
|
}
|
|
|
|
|
2023-04-20 09:56:30 +02:00
|
|
|
return prv->pk_info->check_pair_func((mbedtls_pk_context *) pub,
|
|
|
|
(mbedtls_pk_context *) prv,
|
|
|
|
f_rng, p_rng);
|
2014-11-06 16:51:20 +01:00
|
|
|
}
|
|
|
|
|
2013-08-14 15:56:19 +02:00
|
|
|
/*
|
|
|
|
* Get key size in bits
|
|
|
|
*/
|
2023-01-11 14:50:10 +01:00
|
|
|
size_t mbedtls_pk_get_bitlen(const mbedtls_pk_context *ctx)
|
2013-08-14 15:56:19 +02:00
|
|
|
{
|
2019-01-31 14:20:20 +01:00
|
|
|
/* For backward compatibility, accept NULL or a context that
|
|
|
|
* isn't set up yet, and return a fake value that should be safe. */
|
2023-01-11 14:50:10 +01:00
|
|
|
if (ctx == NULL || ctx->pk_info == NULL) {
|
|
|
|
return 0;
|
|
|
|
}
|
2013-08-14 15:56:19 +02:00
|
|
|
|
2023-04-20 09:56:30 +02:00
|
|
|
return ctx->pk_info->get_bitlen((mbedtls_pk_context *) ctx);
|
2013-08-14 15:56:19 +02:00
|
|
|
}
|
2013-08-14 18:04:18 +02:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Export debug information
|
|
|
|
*/
|
2023-01-11 14:50:10 +01:00
|
|
|
int mbedtls_pk_debug(const mbedtls_pk_context *ctx, mbedtls_pk_debug_item *items)
|
2013-08-14 18:04:18 +02:00
|
|
|
{
|
2023-01-11 14:50:10 +01:00
|
|
|
if (ctx->pk_info == NULL) {
|
|
|
|
return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
|
|
|
|
}
|
2013-08-14 18:04:18 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
if (ctx->pk_info->debug_func == NULL) {
|
|
|
|
return MBEDTLS_ERR_PK_TYPE_MISMATCH;
|
|
|
|
}
|
2014-04-03 22:09:18 +02:00
|
|
|
|
2023-04-20 09:56:30 +02:00
|
|
|
ctx->pk_info->debug_func((mbedtls_pk_context *) ctx, items);
|
2023-01-11 14:50:10 +01:00
|
|
|
return 0;
|
2013-08-14 18:04:18 +02:00
|
|
|
}
|
2013-08-14 18:26:41 +02:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Access the PK type name
|
|
|
|
*/
|
2023-01-11 14:50:10 +01:00
|
|
|
const char *mbedtls_pk_get_name(const mbedtls_pk_context *ctx)
|
2013-08-14 18:26:41 +02:00
|
|
|
{
|
2023-01-11 14:50:10 +01:00
|
|
|
if (ctx == NULL || ctx->pk_info == NULL) {
|
|
|
|
return "invalid PK";
|
|
|
|
}
|
2013-08-14 18:26:41 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
return ctx->pk_info->name;
|
2013-08-14 18:26:41 +02:00
|
|
|
}
|
2013-08-22 13:29:31 +02:00
|
|
|
|
2013-09-11 22:28:30 +02:00
|
|
|
/*
|
|
|
|
* Access the PK type
|
|
|
|
*/
|
2023-01-11 14:50:10 +01:00
|
|
|
mbedtls_pk_type_t mbedtls_pk_get_type(const mbedtls_pk_context *ctx)
|
2013-09-11 22:28:30 +02:00
|
|
|
{
|
2023-01-11 14:50:10 +01:00
|
|
|
if (ctx == NULL || ctx->pk_info == NULL) {
|
|
|
|
return MBEDTLS_PK_NONE;
|
|
|
|
}
|
2013-09-11 22:28:30 +02:00
|
|
|
|
2023-01-11 14:50:10 +01:00
|
|
|
return ctx->pk_info->type;
|
2013-09-11 22:28:30 +02:00
|
|
|
}
|
|
|
|
|
2015-04-08 12:49:31 +02:00
|
|
|
#endif /* MBEDTLS_PK_C */
|