esp-idf/components/esp32c3/include/esp_crypto_lock.h

// Copyright 2015-2020 Espressif Systems (Shanghai) PTE LTD
//
// 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.

#pragma once

#ifdef __cplusplus
extern "C" {
#endif

/**
 * @brief Acquire lock for HMAC cryptography peripheral
 *
 * Internally also locks the SHA peripheral, as the HMAC depends on the SHA peripheral
 */
void esp_crypto_hmac_lock_acquire(void);

/**
 * @brief Release lock for HMAC cryptography peripheral
 *
 * Internally also releases the SHA peripheral, as the HMAC depends on the SHA peripheral
 */
void esp_crypto_hmac_lock_release(void);

/**
 * @brief Acquire lock for DS cryptography peripheral
 *
 * Internally also locks the HMAC (which locks SHA), AES and MPI  peripheral, as the DS depends on these peripherals
 */
void esp_crypto_ds_lock_acquire(void);

/**
 * @brief Release lock for DS cryptography peripheral
 *
 * Internally also releases the HMAC (which locks SHA), AES and MPI  peripheral, as the DS depends on these peripherals
 */
void esp_crypto_ds_lock_release(void);

/**
 * @brief Acquire lock for the SHA and AES cryptography peripheral.
 *
 */
void esp_crypto_sha_aes_lock_acquire(void);

/**
 * @brief Release lock for the SHA and AES cryptography peripheral.
 *
 */
void esp_crypto_sha_aes_lock_release(void);


/**
 * @brief Acquire lock for the mpi cryptography peripheral.
 *
 */
void esp_crypto_mpi_lock_acquire(void);

/**
 * @brief Release lock for the mpi/rsa cryptography peripheral.
 *
 */
void esp_crypto_mpi_lock_release(void);

#ifdef __cplusplus
}
#endif