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5b229a06f4
Differentiate between _key identifiers_, which are always `uint32_t`,
and _key file identifiers_, which are platform-dependent. Normally,
the two are the same.
In `psa/crypto_platform.h`, define `psa_app_key_id_t` (which is always
32 bits, the standard key identifier type) and
`psa_key_file_id_t` (which will be different in some service builds).
A subsequent commit will introduce a platform where the two are different.
It would make sense for the function declarations in `psa/crypto.h` to
use `psa_key_file_id_t`. However this file is currently part of the
PSA Crypto API specification, so it must stick to the standard type
`psa_key_id_t`. Hence, as long as the specification and Mbed Crypto
are not separate, use the implementation-specific file
`psa/crypto_platform.h` to define `psa_key_id_t` as `psa_key_file_id_t`.
In the library, systematically use `psa_key_file_id_t`.
perl -i -pe 's/psa_key_id_t/psa_key_file_id_t/g' library/*.[hc]
100 lines
2.9 KiB
C
100 lines
2.9 KiB
C
/*
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* PSA crypto core internal interfaces
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*/
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/* Copyright (C) 2018, ARM Limited, All Rights Reserved
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* This file is part of mbed TLS (https://tls.mbed.org)
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*/
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#ifndef PSA_CRYPTO_CORE_H
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#define PSA_CRYPTO_CORE_H
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#if !defined(MBEDTLS_CONFIG_FILE)
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#include "mbedtls/config.h"
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#else
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#include MBEDTLS_CONFIG_FILE
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#endif
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#include "psa/crypto.h"
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#include "mbedtls/ecp.h"
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#include "mbedtls/rsa.h"
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/** The data structure representing a key slot, containing key material
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* and metadata for one key.
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*/
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typedef struct
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{
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psa_key_type_t type;
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psa_key_policy_t policy;
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psa_key_lifetime_t lifetime;
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psa_key_file_id_t persistent_storage_id;
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unsigned allocated : 1;
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union
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{
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struct raw_data
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{
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uint8_t *data;
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size_t bytes;
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} raw;
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#if defined(MBEDTLS_RSA_C)
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mbedtls_rsa_context *rsa;
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#endif /* MBEDTLS_RSA_C */
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#if defined(MBEDTLS_ECP_C)
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mbedtls_ecp_keypair *ecp;
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#endif /* MBEDTLS_ECP_C */
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} data;
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} psa_key_slot_t;
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/** Completely wipe a slot in memory, including its policy.
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*
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* Persistent storage is not affected.
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*
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* \param[in,out] slot The key slot to wipe.
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*
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* \retval PSA_SUCCESS
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* Success. This includes the case of a key slot that was
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* already fully wiped.
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* \retval PSA_ERROR_TAMPERING_DETECTED
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*/
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psa_status_t psa_wipe_key_slot( psa_key_slot_t *slot );
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/** Import key data into a slot.
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*
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* `slot->type` must have been set previously.
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* This function assumes that the slot does not contain any key material yet.
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* On failure, the slot content is unchanged.
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*
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* Persistent storage is not affected.
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*
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* \param[in,out] slot The key slot to import data into.
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* Its `type` field must have previously been set to
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* the desired key type.
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* It must not contain any key material yet.
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* \param[in] data Buffer containing the key material to parse and import.
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* \param data_length Size of \p data in bytes.
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*
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* \retval PSA_SUCCESS
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* \retval PSA_ERROR_INVALID_ARGUMENT
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* \retval PSA_ERROR_NOT_SUPPORTED
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* \retval PSA_ERROR_INSUFFICIENT_MEMORY
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*/
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psa_status_t psa_import_key_into_slot( psa_key_slot_t *slot,
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const uint8_t *data,
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size_t data_length );
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#endif /* PSA_CRYPTO_CORE_H */
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