mbedtls/library/psa_crypto_core.h
2018-12-11 16:48:14 +01:00

100 lines
2.9 KiB
C

/*
* PSA crypto core internal interfaces
*/
/* Copyright (C) 2018, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#ifndef PSA_CRYPTO_CORE_H
#define PSA_CRYPTO_CORE_H
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#include "psa/crypto.h"
#include "mbedtls/ecp.h"
#include "mbedtls/rsa.h"
/** The data structure representing a key slot, containing key material
* and metadata for one key.
*/
typedef struct
{
psa_key_type_t type;
psa_key_policy_t policy;
psa_key_lifetime_t lifetime;
psa_key_id_t persistent_storage_id;
unsigned allocated : 1;
union
{
struct raw_data
{
uint8_t *data;
size_t bytes;
} raw;
#if defined(MBEDTLS_RSA_C)
mbedtls_rsa_context *rsa;
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_ECP_C)
mbedtls_ecp_keypair *ecp;
#endif /* MBEDTLS_ECP_C */
} data;
} psa_key_slot_t;
/** Completely wipe a slot in memory, including its policy.
*
* Persistent storage is not affected.
*
* \param[in,out] slot The key slot to wipe.
*
* \retval PSA_SUCCESS
* Success. This includes the case of a key slot that was
* already fully wiped.
* \retval PSA_ERROR_TAMPERING_DETECTED
*/
psa_status_t psa_wipe_key_slot( psa_key_slot_t *slot );
/** Import key data into a slot.
*
* `slot->type` must have been set previously.
* This function assumes that the slot does not contain any key material yet.
* On failure, the slot content is unchanged.
*
* Persistent storage is not affected.
*
* \param[in,out] slot The key slot to import data into.
* Its `type` field must have previously been set to
* the desired key type.
* It must not contain any key material yet.
* \param[in] data Buffer containing the key material to parse and import.
* \param data_length Size of \p data in bytes.
*
* \retval PSA_SUCCESS
* \retval PSA_ERROR_INVALID_ARGUMENT
* \retval PSA_ERROR_NOT_SUPPORTED
* \retval PSA_ERROR_INSUFFICIENT_MEMORY
*/
psa_status_t psa_import_key_into_slot( psa_key_slot_t *slot,
const uint8_t *data,
size_t data_length );
#endif /* PSA_CRYPTO_CORE_H */