AESCCMLPF3.h

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/*
 * Copyright (c) 2021-2024, Texas Instruments Incorporated
 * All rights reserved.
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 *
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 *    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.
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 *    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"
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 */
#ifndef ti_drivers_aesccm_AESCCMLPF3__include
#define ti_drivers_aesccm_AESCCMLPF3__include

#include <stdbool.h>
#include <stdint.h>

#include <ti/drivers/AESCCM.h>
#include <ti/drivers/cryptoutils/aes/AESCommonLPF3.h>

#include <ti/devices/DeviceFamily.h>
#include DeviceFamily_constructPath(driverlib/aes.h)

#ifdef __cplusplus
extern "C" {
#endif

#define AESCCMLPF3_AAD_BUFFER_SIZE 2U

typedef AESCommonLPF3_HWAttrs AESCCMLPF3_HWAttrs;

typedef struct
{
    /* Common member first to allow struct to be cast to the common type */
    AESCommonLPF3_Object common;
    const uint8_t *aad;
    const uint8_t *input;
    uint8_t *output;
    const uint8_t *nonce;
    uint8_t *mac;
    volatile uint32_t intermediateCounter[AES_IV_LENGTH_BYTES / 4];
    volatile uint32_t intermediateTag[AES_TAG_LENGTH_BYTES / 4];
    AESCCM_CallbackFxn callbackFxn;
    AESCCM_OperationUnion *operation;
    size_t inputLength;
    volatile size_t inputCBCMACLengthRemaining;
    volatile size_t inputCTRLengthRemaining;
    size_t totalAADLength;
    size_t totalDataLength;
    size_t aadBytesProcessed;
    volatile size_t totalCBCMACLengthRemaining;
    volatile size_t totalCTRLengthRemaining;
    AESCCM_OperationType operationType;
    uint8_t bufferedAAD[AESCCMLPF3_AAD_BUFFER_SIZE];
    uint8_t bufferedAADLength;
    uint8_t macLength;
    uint8_t nonceLength;
#if (DeviceFamily_PARENT == DeviceFamily_PARENT_CC27XX)
    size_t aadLength;
    volatile size_t totalDataLengthRemaining;
    volatile size_t totalAADLengthRemaining;
    int_fast16_t hsmStatus;
    uint32_t tempAssetID;
    /* To indicate whether a segmented operation is in progress
     */
    bool segmentedOperationInProgress;
#endif
} AESCCMLPF3_Object;

#if (DeviceFamily_PARENT == DeviceFamily_PARENT_CC27XX)

int_fast16_t AESCCMLPF3HSM_setMac(AESCCM_Handle handle, const uint8_t *mac, size_t macLength);
#endif

#ifdef __cplusplus
}
#endif

#endif /* ti_drivers_aesccm_AESCCMLPF3__include */