esp-idf/components/esp_rom/include/esp32/rom/aes.h

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/*
ROM functions for hardware AES support.
It is not recommended to use these functions directly,
use the wrapper functions in hwcrypto/aes.h instead.
*/
// Copyright 2015-2016 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.
#ifndef _ROM_AES_H_
#define _ROM_AES_H_
#include <stdint.h>
#include <stdbool.h>
#ifdef __cplusplus
extern "C" {
#endif
//TODO, add comment for aes apis
enum AES_BITS {
AES128,
AES192,
AES256
};
void ets_aes_enable(void);
void ets_aes_disable(void);
void ets_aes_set_endian(bool key_word_swap, bool key_byte_swap,
bool in_word_swap, bool in_byte_swap,
bool out_word_swap, bool out_byte_swap);
bool ets_aes_setkey_enc(const uint8_t *key, enum AES_BITS bits);
bool ets_aes_setkey_dec(const uint8_t *key, enum AES_BITS bits);
void ets_aes_crypt(const uint8_t input[16], uint8_t output[16]);
#ifdef __cplusplus
}
#endif
#endif /* _ROM_AES_H_ */