mbedtls/tests/include/test/fake_external_rng_for_test.h

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/*
* Insecure but standalone implementation of mbedtls_psa_external_get_random().
* Only for use in tests!
*/
/*
* Copyright The Mbed TLS Contributors
* 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.
*/
#ifndef FAKE_EXTERNAL_RNG_FOR_TEST_H
#define FAKE_EXTERNAL_RNG_FOR_TEST_H
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG)
/** Enable the insecure implementation of mbedtls_psa_external_get_random().
*
* The insecure implementation of mbedtls_psa_external_get_random() is
* disabled by default.
*
* When MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG is enabled and the test
* helpers are linked into a program, you must enable this before running any
* code that uses the PSA subsystem to generate random data (including internal
* random generation for purposes such as blinding when the random generation
* is routed through PSA).
*
* You can enable and disable it at any time, regardless of the state
* of the PSA subsystem. You may disable it temporarily to simulate a
* depleted entropy source.
*/
void mbedtls_test_enable_insecure_external_rng( void );
/** Disable the insecure implementation of mbedtls_psa_external_get_random().
*
* See mbedtls_test_enable_insecure_external_rng().
*/
void mbedtls_test_disable_insecure_external_rng( void );
#endif /* MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG */
#endif /* FAKE_EXTERNAL_RNG_FOR_TEST_H */