e3c05853d6
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
153 lines
6.2 KiB
C
153 lines
6.2 KiB
C
/**
|
|
* \file psa/crypto_compat.h
|
|
*
|
|
* \brief PSA cryptography module: Backward compatibility aliases
|
|
*
|
|
* This header declares alternative names for macro and functions.
|
|
* New application code should not use these names.
|
|
* These names may be removed in a future version of Mbed TLS.
|
|
*
|
|
* \note This file may not be included directly. Applications must
|
|
* include psa/crypto.h.
|
|
*/
|
|
/*
|
|
* Copyright The Mbed TLS Contributors
|
|
* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
|
|
*/
|
|
|
|
#ifndef PSA_CRYPTO_COMPAT_H
|
|
#define PSA_CRYPTO_COMPAT_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/*
|
|
* To support both openless APIs and psa_open_key() temporarily, define
|
|
* psa_key_handle_t to be equal to mbedtls_svc_key_id_t. Do not mark the
|
|
* type and its utility macros and functions deprecated yet. This will be done
|
|
* in a subsequent phase.
|
|
*/
|
|
typedef mbedtls_svc_key_id_t psa_key_handle_t;
|
|
|
|
#define PSA_KEY_HANDLE_INIT MBEDTLS_SVC_KEY_ID_INIT
|
|
|
|
/** Check whether a handle is null.
|
|
*
|
|
* \param handle Handle
|
|
*
|
|
* \return Non-zero if the handle is null, zero otherwise.
|
|
*/
|
|
static inline int psa_key_handle_is_null(psa_key_handle_t handle)
|
|
{
|
|
return mbedtls_svc_key_id_is_null(handle);
|
|
}
|
|
|
|
/** Open a handle to an existing persistent key.
|
|
*
|
|
* Open a handle to a persistent key. A key is persistent if it was created
|
|
* with a lifetime other than #PSA_KEY_LIFETIME_VOLATILE. A persistent key
|
|
* always has a nonzero key identifier, set with psa_set_key_id() when
|
|
* creating the key. Implementations may provide additional pre-provisioned
|
|
* keys that can be opened with psa_open_key(). Such keys have an application
|
|
* key identifier in the vendor range, as documented in the description of
|
|
* #psa_key_id_t.
|
|
*
|
|
* The application must eventually close the handle with psa_close_key() or
|
|
* psa_destroy_key() to release associated resources. If the application dies
|
|
* without calling one of these functions, the implementation should perform
|
|
* the equivalent of a call to psa_close_key().
|
|
*
|
|
* Some implementations permit an application to open the same key multiple
|
|
* times. If this is successful, each call to psa_open_key() will return a
|
|
* different key handle.
|
|
*
|
|
* \note This API is not part of the PSA Cryptography API Release 1.0.0
|
|
* specification. It was defined in the 1.0 Beta 3 version of the
|
|
* specification but was removed in the 1.0.0 released version. This API is
|
|
* kept for the time being to not break applications relying on it. It is not
|
|
* deprecated yet but will be in the near future.
|
|
*
|
|
* \note Applications that rely on opening a key multiple times will not be
|
|
* portable to implementations that only permit a single key handle to be
|
|
* opened. See also :ref:\`key-handles\`.
|
|
*
|
|
*
|
|
* \param key The persistent identifier of the key.
|
|
* \param[out] handle On success, a handle to the key.
|
|
*
|
|
* \retval #PSA_SUCCESS
|
|
* Success. The application can now use the value of `*handle`
|
|
* to access the key.
|
|
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY
|
|
* The implementation does not have sufficient resources to open the
|
|
* key. This can be due to reaching an implementation limit on the
|
|
* number of open keys, the number of open key handles, or available
|
|
* memory.
|
|
* \retval #PSA_ERROR_DOES_NOT_EXIST
|
|
* There is no persistent key with key identifier \p key.
|
|
* \retval #PSA_ERROR_INVALID_ARGUMENT
|
|
* \p key is not a valid persistent key identifier.
|
|
* \retval #PSA_ERROR_NOT_PERMITTED
|
|
* The specified key exists, but the application does not have the
|
|
* permission to access it. Note that this specification does not
|
|
* define any way to create such a key, but it may be possible
|
|
* through implementation-specific means.
|
|
* \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription
|
|
* \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription
|
|
* \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription
|
|
* \retval #PSA_ERROR_DATA_INVALID \emptydescription
|
|
* \retval #PSA_ERROR_DATA_CORRUPT \emptydescription
|
|
* \retval #PSA_ERROR_BAD_STATE
|
|
* The library has not been previously initialized by psa_crypto_init().
|
|
* It is implementation-dependent whether a failure to initialize
|
|
* results in this error code.
|
|
*/
|
|
psa_status_t psa_open_key(mbedtls_svc_key_id_t key,
|
|
psa_key_handle_t *handle);
|
|
|
|
/** Close a key handle.
|
|
*
|
|
* If the handle designates a volatile key, this will destroy the key material
|
|
* and free all associated resources, just like psa_destroy_key().
|
|
*
|
|
* If this is the last open handle to a persistent key, then closing the handle
|
|
* will free all resources associated with the key in volatile memory. The key
|
|
* data in persistent storage is not affected and can be opened again later
|
|
* with a call to psa_open_key().
|
|
*
|
|
* Closing the key handle makes the handle invalid, and the key handle
|
|
* must not be used again by the application.
|
|
*
|
|
* \note This API is not part of the PSA Cryptography API Release 1.0.0
|
|
* specification. It was defined in the 1.0 Beta 3 version of the
|
|
* specification but was removed in the 1.0.0 released version. This API is
|
|
* kept for the time being to not break applications relying on it. It is not
|
|
* deprecated yet but will be in the near future.
|
|
*
|
|
* \note If the key handle was used to set up an active
|
|
* :ref:\`multipart operation <multipart-operations>\`, then closing the
|
|
* key handle can cause the multipart operation to fail. Applications should
|
|
* maintain the key handle until after the multipart operation has finished.
|
|
*
|
|
* \param handle The key handle to close.
|
|
* If this is \c 0, do nothing and return \c PSA_SUCCESS.
|
|
*
|
|
* \retval #PSA_SUCCESS
|
|
* \p handle was a valid handle or \c 0. It is now closed.
|
|
* \retval #PSA_ERROR_INVALID_HANDLE
|
|
* \p handle is not a valid handle nor \c 0.
|
|
* \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription
|
|
* \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription
|
|
* \retval #PSA_ERROR_BAD_STATE
|
|
* The library has not been previously initialized by psa_crypto_init().
|
|
* It is implementation-dependent whether a failure to initialize
|
|
* results in this error code.
|
|
*/
|
|
psa_status_t psa_close_key(psa_key_handle_t handle);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* PSA_CRYPTO_COMPAT_H */
|