/* 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. #pragma once #include <stdint.h> #include <stdbool.h> #ifdef __cplusplus extern "C" { #endif #define AES_BLOCK_SIZE 16 enum AES_TYPE { AES_ENC, AES_DEC, }; 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); int ets_aes_setkey(enum AES_TYPE type, const void *key, enum AES_BITS bits); int ets_aes_setkey_enc(const void *key, enum AES_BITS bits); int ets_aes_setkey_dec(const void *key, enum AES_BITS bits); void ets_aes_block(const void *input, void *output); #ifdef __cplusplus } #endif