present.c File Reference

PRESENT encryption algorithm. More...

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

Go to the source code of this file.

Macros
#define	TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Functions
error_t	presentInit (PresentContext *context, const uint8_t *key, size_t keyLen)
	Key expansion. More...
void	presentEncryptBlock (PresentContext *context, const uint8_t *input, uint8_t *output)
	Encrypt a 8-byte block using PRESENT algorithm. More...
void	presentDecryptBlock (PresentContext *context, const uint8_t *input, uint8_t *output)
	Decrypt a 8-byte block using PRESENT algorithm. More...
void	presentDeinit (PresentContext *context)
	Release PRESENT context. More...

Variables
const CipherAlgo	presentCipherAlgo

Detailed Description

PRESENT encryption algorithm.

License

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

Copyright (C) 2010-2024 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

PRESENT is an ultra-lightweight block cipher

Author

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

Version

2.4.0

Definition in file present.c.

Macro Definition Documentation

TRACE_LEVEL

#define TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Definition at line 36 of file present.c.

Function Documentation

presentDecryptBlock()

void presentDecryptBlock	(	PresentContext *	context,
		const uint8_t *	input,
		uint8_t *	output
	)

Decrypt a 8-byte block using PRESENT algorithm.

Parameters

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

Definition at line 341 of file present.c.

presentDeinit()

void presentDeinit

(

PresentContext *

context

)

Release PRESENT context.

Parameters

[in]

context

Pointer to the PRESENT context

Definition at line 406 of file present.c.

presentEncryptBlock()

void presentEncryptBlock	(	PresentContext *	context,
		const uint8_t *	input,
		uint8_t *	output
	)

Encrypt a 8-byte block using PRESENT algorithm.

Parameters

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

Definition at line 291 of file present.c.

presentInit()

error_t presentInit	(	PresentContext *	context,
		const uint8_t *	key,
		size_t	keyLen
	)

Key expansion.

Parameters

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

Returns

Error code

Definition at line 202 of file present.c.

Variable Documentation

presentCipherAlgo

const CipherAlgo presentCipherAlgo

Initial value:

=
{
   "PRESENT",
   sizeof(PresentContext),
   CIPHER_ALGO_TYPE_BLOCK,
   PRESENT_BLOCK_SIZE,
   (CipherAlgoInit) presentInit,
   NULL,
   NULL,
   (CipherAlgoEncryptBlock) presentEncryptBlock,
   (CipherAlgoDecryptBlock) presentDecryptBlock,
   (CipherAlgoDeinit) presentDeinit
}

Definition at line 179 of file present.c.