siv.c File Reference

Synthetic Initialization Vector (SIV) More...

#include "core/crypto.h"
#include "aead/siv.h"
#include "mac/cmac.h"
#include "cipher_modes/ctr.h"
#include "debug.h"

Go to the source code of this file.

Macros
#define	TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Functions
error_t	sivEncrypt (const CipherAlgo *cipher, const uint8_t *k, size_t kLen, const DataChunk *ad, uint_t adLen, const uint8_t *p, uint8_t *c, size_t length, uint8_t *v)
	Authenticated encryption using SIV. More...
error_t	sivDecrypt (const CipherAlgo *cipher, const uint8_t *k, size_t kLen, const DataChunk *ad, uint_t adLen, const uint8_t *c, uint8_t *p, size_t length, const uint8_t *v)
	Authenticated decryption using SIV. More...
void	s2v (const CipherAlgo *cipher, const uint8_t *k, size_t kLen, const DataChunk *ad, uint_t adLen, const uint8_t *p, size_t pLen, uint8_t *v)
	S2V operation. More...

Detailed Description

Synthetic Initialization Vector (SIV)

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

SIV (Synthetic Initialization Vector) is an authenticated encryption algorithm designed to provide nonce misuse resistance. Refer to RFC 5297 for more details

Author

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

Version

2.4.4

Definition in file siv.c.

Macro Definition Documentation

TRACE_LEVEL

#define TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Definition at line 38 of file siv.c.

Function Documentation

s2v()

void s2v	(	const CipherAlgo *	cipher,
		const uint8_t *	k,
		size_t	kLen,
		const DataChunk *	ad,
		uint_t	adLen,
		const uint8_t *	p,
		size_t	pLen,
		uint8_t *	v
	)

S2V operation.

Parameters

[in]	cipher	Cipher algorithm
[in]	key	Pointer to the S2V key
[in]	kLen	Length of the S2V key
[in]	ad	Vector of associated data
[in]	adLen	Number of components in the vector of associated data
[in]	p	Payload data
[in]	pLen	Length of the payload data
[out]	v	synthetic IV

Definition at line 208 of file siv.c.

sivDecrypt()

error_t sivDecrypt	(	const CipherAlgo *	cipher,
		const uint8_t *	k,
		size_t	kLen,
		const DataChunk *	ad,
		uint_t	adLen,
		const uint8_t *	c,
		uint8_t *	p,
		size_t	length,
		const uint8_t *	v
	)

Authenticated decryption using SIV.

Parameters

[in]	cipher	Cipher algorithm
[in]	k	Pointer to the secret key
[in]	kLen	Length of the secret key
[in]	ad	Vector of associated data
[in]	adLen	Number of components in the vector of associated data
[in]	c	Ciphertext to be decrypted
[out]	p	Plaintext resulting from the decryption
[in]	length	Total number of data bytes to be decrypted
[in]	v	Synthetic IV (16 bytes)

Returns

Error code

Definition at line 133 of file siv.c.

sivEncrypt()

error_t sivEncrypt	(	const CipherAlgo *	cipher,
		const uint8_t *	k,
		size_t	kLen,
		const DataChunk *	ad,
		uint_t	adLen,
		const uint8_t *	p,
		uint8_t *	c,
		size_t	length,
		uint8_t *	v
	)

Authenticated encryption using SIV.

Parameters

[in]	cipher	Cipher algorithm
[in]	k	Pointer to the secret key
[in]	kLen	Length of the secret key
[in]	ad	Vector of associated data
[in]	adLen	Number of components in the vector of associated data
[in]	p	Plaintext to be encrypted
[out]	c	Ciphertext resulting from the encryption
[in]	length	Total number of data bytes to be encrypted
[out]	v	Synthetic IV (16 bytes)

Returns

Error code

Definition at line 65 of file siv.c.