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Diffstat (limited to 'include/mbedtls/psa_util.h')
| -rw-r--r-- | include/mbedtls/psa_util.h | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/include/mbedtls/psa_util.h b/include/mbedtls/psa_util.h deleted file mode 100644 index 643e8aa..0000000 --- a/include/mbedtls/psa_util.h +++ /dev/null @@ -1,104 +0,0 @@ -/** - * \file psa_util.h - * - * \brief Utility functions for the use of the PSA Crypto library. - */ -/* - * Copyright The Mbed TLS Contributors - * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later - */ - -#ifndef MBEDTLS_PSA_UTIL_H -#define MBEDTLS_PSA_UTIL_H -#include "mbedtls/private_access.h" - -#include "mbedtls/build_info.h" - -#if defined(MBEDTLS_PSA_CRYPTO_C) - -/* Expose whatever RNG the PSA subsystem uses to applications using the - * mbedtls_xxx API. The declarations and definitions here need to be - * consistent with the implementation in library/psa_crypto_random_impl.h. - * See that file for implementation documentation. */ - - -/* The type of a `f_rng` random generator function that many library functions - * take. - * - * This type name is not part of the Mbed TLS stable API. It may be renamed - * or moved without warning. - */ -typedef int mbedtls_f_rng_t(void *p_rng, unsigned char *output, size_t output_size); - -#if defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG) - -/** The random generator function for the PSA subsystem. - * - * This function is suitable as the `f_rng` random generator function - * parameter of many `mbedtls_xxx` functions. Use #MBEDTLS_PSA_RANDOM_STATE - * to obtain the \p p_rng parameter. - * - * The implementation of this function depends on the configuration of the - * library. - * - * \note Depending on the configuration, this may be a function or - * a pointer to a function. - * - * \note This function may only be used if the PSA crypto subsystem is active. - * This means that you must call psa_crypto_init() before any call to - * this function, and you must not call this function after calling - * mbedtls_psa_crypto_free(). - * - * \param p_rng The random generator context. This must be - * #MBEDTLS_PSA_RANDOM_STATE. No other state is - * supported. - * \param output The buffer to fill. It must have room for - * \c output_size bytes. - * \param output_size The number of bytes to write to \p output. - * This function may fail if \p output_size is too - * large. It is guaranteed to accept any output size - * requested by Mbed TLS library functions. The - * maximum request size depends on the library - * configuration. - * - * \return \c 0 on success. - * \return An `MBEDTLS_ERR_ENTROPY_xxx`, - * `MBEDTLS_ERR_PLATFORM_xxx, - * `MBEDTLS_ERR_CTR_DRBG_xxx` or - * `MBEDTLS_ERR_HMAC_DRBG_xxx` on error. - */ -int mbedtls_psa_get_random(void *p_rng, - unsigned char *output, - size_t output_size); - -/** The random generator state for the PSA subsystem. - * - * This macro expands to an expression which is suitable as the `p_rng` - * random generator state parameter of many `mbedtls_xxx` functions. - * It must be used in combination with the random generator function - * mbedtls_psa_get_random(). - * - * The implementation of this macro depends on the configuration of the - * library. Do not make any assumption on its nature. - */ -#define MBEDTLS_PSA_RANDOM_STATE NULL - -#else /* !defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG) */ - -#if defined(MBEDTLS_CTR_DRBG_C) -#include "mbedtls/ctr_drbg.h" -typedef mbedtls_ctr_drbg_context mbedtls_psa_drbg_context_t; -static mbedtls_f_rng_t *const mbedtls_psa_get_random = mbedtls_ctr_drbg_random; -#elif defined(MBEDTLS_HMAC_DRBG_C) -#include "mbedtls/hmac_drbg.h" -typedef mbedtls_hmac_drbg_context mbedtls_psa_drbg_context_t; -static mbedtls_f_rng_t *const mbedtls_psa_get_random = mbedtls_hmac_drbg_random; -#endif -extern mbedtls_psa_drbg_context_t *const mbedtls_psa_random_state; - -#define MBEDTLS_PSA_RANDOM_STATE mbedtls_psa_random_state - -#endif /* !defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG) */ - -#endif /* MBEDTLS_PSA_CRYPTO_C */ -#endif /* MBEDTLS_PSA_UTIL_H */ |