aes.c File Reference

AES (Advanced Encryption Standard) More...

#include "core/crypto.h"
#include "cipher/aes.h"

Go to the source code of this file.

Macros
#define	TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Functions
__weak_func error_t	aesInit (AesContext *context, const uint8_t *key, size_t keyLen)
	Key expansion. More...
__weak_func void	aesEncryptBlock (AesContext *context, const uint8_t *input, uint8_t *output)
	Encrypt a 16-byte block using AES algorithm. More...
__weak_func void	aesDecryptBlock (AesContext *context, const uint8_t *input, uint8_t *output)
	Decrypt a 16-byte block using AES algorithm. More...

Variables
const CipherAlgo	aesCipherAlgo

Detailed Description

AES (Advanced Encryption Standard)

License

SPDX-License-Identifier: GPL-2.0-or-later

Copyright (C) 2010-2022 Oryx Embedded SARL. All rights reserved.

This file is part of CycloneCRYPTO Open.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Description

AES is an encryption standard based on Rijndael algorithm, a symmetric block cipher that can process data blocks of 128 bits, using cipher keys with lengths of 128, 192, and 256 bits. Refer to FIPS 197 for more details

Author

Oryx Embedded SARL (www.oryx-embedded.com)

Version

2.1.6

Definition in file aes.c.

Macro Definition Documentation

TRACE_LEVEL

#define TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Definition at line 38 of file aes.c.

Function Documentation

aesDecryptBlock()

__weak_func void aesDecryptBlock	(	AesContext *	context,
		const uint8_t *	input,
		uint8_t *	output
	)

Decrypt a 16-byte block using AES algorithm.

Parameters

[in]	context	Pointer to the AES context
[in]	input	Ciphertext block to decrypt
[out]	output	Plaintext block resulting from decryption

Definition at line 420 of file aes.c.

aesEncryptBlock()

__weak_func void aesEncryptBlock	(	AesContext *	context,
		const uint8_t *	input,
		uint8_t *	output
	)

Encrypt a 16-byte block using AES algorithm.

Parameters

[in]	context	Pointer to the AES context
[in]	input	Plaintext block to encrypt
[out]	output	Ciphertext block resulting from encryption

Definition at line 310 of file aes.c.

aesInit()

__weak_func error_t aesInit	(	AesContext *	context,
		const uint8_t *	key,
		size_t	keyLen
	)

Key expansion.

Parameters

[in]	context	Pointer to the AES context to initialize
[in]	key	Pointer to the key
[in]	keyLen	Length of the key

Returns

Error code

Definition at line 202 of file aes.c.

Variable Documentation

aesCipherAlgo

const CipherAlgo aesCipherAlgo

Initial value:

=
{
   "AES",
   sizeof(AesContext),
   CIPHER_ALGO_TYPE_BLOCK,
   AES_BLOCK_SIZE,
   (CipherAlgoInit) aesInit,
   NULL,
   NULL,
   (CipherAlgoEncryptBlock) aesEncryptBlock,
   (CipherAlgoDecryptBlock) aesDecryptBlock
}

Definition at line 180 of file aes.c.