ocrypto_aes_cbc_pkcs.h

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/*
 * Copyright (c) 2016 - 2024 Nordic Semiconductor ASA
 * Copyright (c) since 2013 Oberon microsystems AG
 *
 * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
 */
 
 
#ifndef OCRYPTO_AES_CBC_PKCS_H
#define OCRYPTO_AES_CBC_PKCS_H
 
#include <stddef.h>
#include <stdint.h>
 
 
#ifdef __cplusplus
extern "C" {
#endif
 
 
typedef struct {
    uint32_t xkey[60];
    uint8_t  iv[16];
    uint8_t  buffer[16];
    uint8_t  length;
    uint8_t  key_size;
    uint8_t  decrypt;
    uint8_t  iv_set;
} ocrypto_aes_cbc_pkcs_ctx;
void ocrypto_aes_cbc_pkcs_init(
    ocrypto_aes_cbc_pkcs_ctx *ctx,
    const uint8_t *key, size_t size,
    const uint8_t iv[16],
    int decrypt);
 
size_t ocrypto_aes_cbc_pkcs_output_size(ocrypto_aes_cbc_pkcs_ctx *ctx, size_t pt_len);
 
void ocrypto_aes_cbc_pkcs_update(
    ocrypto_aes_cbc_pkcs_ctx *ctx,
    uint8_t *out,
    const uint8_t *in, size_t in_len);
 
void ocrypto_aes_cbc_pkcs_final_enc(ocrypto_aes_cbc_pkcs_ctx *ctx, uint8_t ct[16]);
 
int ocrypto_aes_cbc_pkcs_final_dec(ocrypto_aes_cbc_pkcs_ctx *ctx, uint8_t *pt, size_t *pt_len);
void ocrypto_aes_cbc_pkcs_encrypt(
    uint8_t* ct,
    const uint8_t* pt, size_t pt_len,
    const uint8_t *key, size_t size,
    const uint8_t iv[16]);
 
int ocrypto_aes_cbc_pkcs_decrypt(
    uint8_t *pt, size_t *pt_len,
    const uint8_t *ct, size_t ct_len,
    const uint8_t *key, size_t size, 
    const uint8_t iv[16]);
 
 
#ifdef __cplusplus
}
#endif
 
#endif