Salsa20 encryption algorithm. More...

#include "core/crypto.h"
#include "cipher/salsa20.h"

Macros
#define	TRACE_LEVEL CRYPTO_TRACE_LEVEL

#define	QUARTER_ROUND(a, b, c, d)

Functions
void	salsa20ProcessBlock (const uint8_t input, uint8_t output, uint_t nr)
	Salsa20 core function. More...

Detailed Description

Salsa20 encryption algorithm.

License

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

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: 2.4.4

Definition in file salsa20.c.

Macro Definition Documentation

◆ QUARTER_ROUND

#define QUARTER_ROUND	(	a,
		b,
		c,
		d
	)

Value:

{ \
   b ^= ROL32(a + d, 7); \
   c ^= ROL32(b + a, 9); \
   d ^= ROL32(c + b, 13); \
   a ^= ROL32(d + c, 18); \
}

Definition at line 42 of file salsa20.c.

◆ TRACE_LEVEL

#define TRACE_LEVEL CRYPTO_TRACE_LEVEL

Definition at line 32 of file salsa20.c.

Function Documentation

◆ salsa20ProcessBlock()

void salsa20ProcessBlock	(	const uint8_t *	input,
		uint8_t *	output,
		uint_t	nr
	)

Salsa20 core function.

Parameters

[in]	input	Pointer to the 64-octet input block
[out]	output	Pointer to the 64-octet output block
[in]	nr	Number of rounds to be applied (8, 12 or 20)

Definition at line 58 of file salsa20.c.

Macros