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/*
 * masterkey.h
 * -----------
 * Code to handle the Master Key that wraps all the keys in the keystore.
 *
 * Copyright (c) 2016, NORDUnet A/S All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * - Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 *
 * - Neither the name of the NORDUnet nor the names of its contributors may
 *   be used to endorse or promote products derived from this software
 *   without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef __STM32_HSM_MASTERKEY_H
#define __STM32_HSM_MASTERKEY_H

typedef enum {
    HSM_MASTERKEY_FAIL,
    HSM_MASTERKEY_OK,
    HSM_MASTERKEY_SET,
    HSM_MASTERKEY_NOT_SET,
} masterkey_status_t;

extern masterkey_status_t masterkey_volatile_read(uint8_t *buf, size_t len);
extern masterkey_status_t masterkey_volatile_write(uint8_t *buf, size_t len);
extern masterkey_status_t masterkey_volatile_erase(size_t len);

extern masterkey_status_t masterkey_flash_read(uint8_t *buf, size_t len);
extern masterkey_status_t masterkey_flash_write(uint8_t *buf, size_t len);
extern masterkey_status_t masterkey_flash_erase(size_t len);

#endif /* __STM32_HSM_MASTERKEY_H */