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aes.c File Reference

aes.c File Reference

AES (Advanced Encryption Standard) More...

Go to the source code of this file.

Functions

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

Detailed Description

AES (Advanced Encryption Standard)

License

Copyright (C) 2010-2017 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:
1.7.6

Definition in file aes.c.


Function Documentation

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

Decrypt a 16-byte block using AES algorithm.

Parameters:
[in]contextPointer to the AES context
[in]inputCiphertext block to decrypt
[out]outputPlaintext block resulting from decryption

Definition at line 404 of file aes.c.

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

Encrypt a 16-byte block using AES algorithm.

Parameters:
[in]contextPointer to the AES context
[in]inputPlaintext block to encrypt
[out]outputCiphertext block resulting from encryption

Definition at line 294 of file aes.c.

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

Key expansion.

Parameters:
[in]contextPointer to the AES context to initialize
[in]keyPointer to the key
[in]keyLengthLength of the key
Returns:
Error code

Definition at line 201 of file aes.c.