rc2.c File Reference

RC2 block cipher. More...

#include "core/crypto.h"
#include "cipher/rc2.h"
#include "debug.h"

Go to the source code of this file.

Macros
#define	TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Functions
error_t	rc2Init (Rc2Context *context, const uint8_t *key, size_t keyLen)
	Initialize a RC2 context using the supplied key. More...
error_t	rc2InitEx (Rc2Context *context, const uint8_t *key, size_t keyLen, uint_t effectiveKeyLen)
	Initialize a RC2 context using the supplied key. More...
void	rc2EncryptBlock (Rc2Context *context, const uint8_t *input, uint8_t *output)
	Encrypt a 8-byte block using RC2 algorithm. More...
void	rc2DecryptBlock (Rc2Context *context, const uint8_t *input, uint8_t *output)
	Decrypt a 8-byte block using RC2 algorithm. More...
void	rc2Deinit (Rc2Context *context)
	Release RC2 context. More...

Variables
const CipherAlgo	rc2CipherAlgo

Detailed Description

RC2 block cipher.

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

RC2 is a block encryption algorithm, which may be considered as a proposal for a DES replacement. The input and output block sizes are 64 bits each. The key size is variable, from one byte up to 128 bytes. Refer to RFC 2268 for more details

Author

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

Version

2.4.4

Definition in file rc2.c.

Macro Definition Documentation

TRACE_LEVEL

#define TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Definition at line 39 of file rc2.c.

Function Documentation

rc2DecryptBlock()

void rc2DecryptBlock	(	Rc2Context *	context,
		const uint8_t *	input,
		uint8_t *	output
	)

Decrypt a 8-byte block using RC2 algorithm.

Parameters

[in]	context	Pointer to the RC2 context
[in]	input	Ciphertext block to decrypt
[out]	output	Plaintext block resulting from decryption

Definition at line 228 of file rc2.c.

rc2Deinit()

void rc2Deinit

(

Rc2Context *

context

)

Release RC2 context.

Parameters

[in]

context

Pointer to the RC2 context

Definition at line 280 of file rc2.c.

rc2EncryptBlock()

void rc2EncryptBlock	(	Rc2Context *	context,
		const uint8_t *	input,
		uint8_t *	output
	)

Encrypt a 8-byte block using RC2 algorithm.

Parameters

[in]	context	Pointer to the RC2 context
[in]	input	Plaintext block to encrypt
[out]	output	Ciphertext block resulting from encryption

Definition at line 174 of file rc2.c.

rc2Init()

error_t rc2Init	(	Rc2Context *	context,
		const uint8_t *	key,
		size_t	keyLen
	)

Initialize a RC2 context using the supplied key.

Parameters

[in]	context	Pointer to the RC2 context to initialize
[in]	key	Pointer to the key
[in]	keyLen	Length of the key

Returns

Error code

Definition at line 94 of file rc2.c.

rc2InitEx()

error_t rc2InitEx	(	Rc2Context *	context,
		const uint8_t *	key,
		size_t	keyLen,
		uint_t	effectiveKeyLen
	)

Initialize a RC2 context using the supplied key.

Parameters

[in]	context	Pointer to the RC2 context to initialize
[in]	key	Pointer to the key
[in]	keyLen	Length of the key (T)
[in]	effectiveKeyLen	Maximum effective key length, in bits (T1)

Returns

Error code

Definition at line 110 of file rc2.c.

Variable Documentation

rc2CipherAlgo

const CipherAlgo rc2CipherAlgo

Initial value:

=
{
   "RC2",
   sizeof(Rc2Context),
   CIPHER_ALGO_TYPE_BLOCK,
   RC2_BLOCK_SIZE,
   (CipherAlgoInit) rc2Init,
   NULL,
   NULL,
   (CipherAlgoEncryptBlock) rc2EncryptBlock,
   (CipherAlgoDecryptBlock) rc2DecryptBlock,
   (CipherAlgoDeinit) rc2Deinit
}

Definition at line 71 of file rc2.c.