/* * Copyright (c) 2018-2020, Arm Limited. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause * */ /** * \file psa/crypto_platform.h * * \brief PSA cryptography module: Mbed TLS platform definitions * * \note This file may not be included directly. Applications must * include psa/crypto.h. * * This file contains platform-dependent type definitions. * * In implementations with isolation between the application and the * cryptography module, implementers should take care to ensure that * the definitions that are exposed to applications match what the * module implements. */ #ifndef PSA_CRYPTO_PLATFORM_H #define PSA_CRYPTO_PLATFORM_H /* PSA requires several types which C99 provides in stdint.h. */ #include <stdint.h> /* Integral type representing a key handle. */ typedef uint16_t psa_key_handle_t; /* This implementation distinguishes *application key identifiers*, which * are the key identifiers specified by the application, from * *key file identifiers*, which are the key identifiers that the library * sees internally. The two types can be different if there is a remote * call layer between the application and the library which supports * multiple client applications that do not have access to each others' * keys. The point of having different types is that the key file * identifier may encode not only the key identifier specified by the * application, but also the the identity of the application. * * Note that this is an internal concept of the library and the remote * call layer. The application itself never sees anything other than * #psa_app_key_id_t with its standard definition. */ /* The application key identifier is always what the application sees as * #psa_key_id_t. */ typedef uint32_t psa_app_key_id_t; #endif /* PSA_CRYPTO_PLATFORM_H */