atca.h

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/*
 * Copyright (C) 2019 HAW Hamburg
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#pragma once

 
#include "modules.h"
#include "periph/i2c.h"
#include "cryptoauthlib.h"
 
#ifdef __cplusplus
extern "C" {
#endif

#define ATCA_I2C_ADDR (0xC0)    
 
#define ATCA_WAKE_ADDR   (0x00) 
#define ATCA_SLEEP_ADDR  (0x01) 
#define ATCA_IDLE_ADDR   (0x02) 
#define ATCA_DATA_ADDR   (0x03) 
 
#if IS_USED(MODULE_PSA_SECURE_ELEMENT_ATECCX08A)
#include "psa/crypto_types.h"

typedef struct {
    uint8_t iv[16];
    psa_encrypt_or_decrypt_t direction;
    union atca_context {
        atca_aes_cbc_ctx_t aes_cbc;
    } aes_ctx;
} psa_atca_cipher_context_t;

typedef struct {
    /* Type of key permitted for slot */
    psa_key_type_t key_type_allowed;
    /* Specify if key should be stored persistently or can be overwritten */
    uint8_t key_persistent;
    /* Specify whether slot is already occupied */
    uint8_t slot_occupied;
} psa_atca_slot_config_t;
#endif /* MODULE_PSA_SECURE_ELEMENT_ATECCX08A */
 
#ifdef __cplusplus
}
#endif