cast256.h File Reference

CAST-256 encryption algorithm. More...

#include "core/crypto.h"

Go to the source code of this file.

Data Structures
struct	Cast256Context
	CAST-256 algorithm context. More...

Macros
#define	CAST256_BLOCK_SIZE   16
#define	CAST256_CIPHER_ALGO   (&cast256CipherAlgo)

Functions
error_t	cast256Init (Cast256Context *context, const uint8_t *key, size_t keyLen)
	Key expansion. More...
void	cast256EncryptBlock (Cast256Context *context, const uint8_t *input, uint8_t *output)
	Encrypt a 8-byte block using CAST-256 algorithm. More...
void	cast256DecryptBlock (Cast256Context *context, const uint8_t *input, uint8_t *output)
	Decrypt a 8-byte block using CAST-256 algorithm. More...
void	cast256Deinit (Cast256Context *context)
	Release CAST-256 context. More...

Variables
const CipherAlgo	cast256CipherAlgo

Detailed Description

CAST-256 encryption algorithm.

License

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

Copyright (C) 2010-2025 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.

Author

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

Version

2.5.4

Definition in file cast256.h.

Macro Definition Documentation

CAST256_BLOCK_SIZE

#define CAST256_BLOCK_SIZE   16

Definition at line 38 of file cast256.h.

CAST256_CIPHER_ALGO

#define CAST256_CIPHER_ALGO   (&cast256CipherAlgo)

Definition at line 40 of file cast256.h.

Function Documentation

cast256DecryptBlock()

void cast256DecryptBlock	(	Cast256Context *	context,
		const uint8_t *	input,
		uint8_t *	output
	)

Decrypt a 8-byte block using CAST-256 algorithm.

Parameters

[in]	context	Pointer to the CAST-256 context
[in]	input	Ciphertext block to decrypt
[out]	output	Plaintext block resulting from decryption

Definition at line 416 of file cast256.c.

cast256Deinit()

void cast256Deinit

(

Cast256Context *

context

)

Release CAST-256 context.

Parameters

[in]

context

Pointer to the CAST-256 context

Definition at line 459 of file cast256.c.

cast256EncryptBlock()

void cast256EncryptBlock	(	Cast256Context *	context,
		const uint8_t *	input,
		uint8_t *	output
	)

Encrypt a 8-byte block using CAST-256 algorithm.

Parameters

[in]	context	Pointer to the CAST-256 context
[in]	input	Plaintext block to encrypt
[out]	output	Ciphertext block resulting from encryption

Definition at line 372 of file cast256.c.

cast256Init()

error_t cast256Init	(	Cast256Context *	context,
		const uint8_t *	key,
		size_t	keyLen
	)

Key expansion.

Parameters

[in]	context	Pointer to the CAST-256 context to initialize
[in]	key	Pointer to the key
[in]	keyLen	Length of the key

Returns

Error code

Definition at line 315 of file cast256.c.

Variable Documentation

cast256CipherAlgo

const CipherAlgo cast256CipherAlgo

extern

Definition at line 292 of file cast256.c.