m480_crypto_pkc.c File Reference

M480 public-key hardware accelerator. More...

#include "m480.h"
#include "core/crypto.h"
#include "hardware/m480/m480_crypto.h"
#include "hardware/m480/m480_crypto_pkc.h"
#include "ecc/ec.h"
#include "ecc/ec_misc.h"
#include "debug.h"

Go to the source code of this file.

Macros
#define	TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Functions
void	eccImportScalar (volatile uint32_t *dest, uint_t length, const uint32_t *src)
	Import scalar. More...
void	eccExportScalar (volatile uint32_t *src, uint_t length, uint32_t *dest)
	Export scalar. More...
error_t	ecMulFast (const EcCurve *curve, EcPoint3 *r, const uint32_t *d, const EcPoint3 *s)
	Scalar multiplication (fast calculation) More...
error_t	ecMulRegular (const EcCurve *curve, EcPoint3 *r, const uint32_t *d, const EcPoint3 *s)
	Scalar multiplication (regular calculation) More...
error_t	ecTwinMul (const EcCurve *curve, EcPoint3 *r, const uint32_t *d0, const EcPoint3 *s, const uint32_t *d1, const EcPoint3 *t)
	Twin multiplication. More...

Detailed Description

M480 public-key hardware accelerator.

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

2.5.0

Definition in file m480_crypto_pkc.c.

Macro Definition Documentation

TRACE_LEVEL

#define TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Definition at line 32 of file m480_crypto_pkc.c.

Function Documentation

eccExportScalar()

void eccExportScalar	(	volatile uint32_t *	src,
		uint_t	length,
		uint32_t *	dest
	)

Export scalar.

Parameters

[in]	src	Pointer to the operand
[in]	length	Length of the operand, in bits
[out]	dest	Pointer to the scalar

Definition at line 76 of file m480_crypto_pkc.c.

eccImportScalar()

void eccImportScalar	(	volatile uint32_t *	dest,
		uint_t	length,
		const uint32_t *	src
	)

Import scalar.

Parameters

[in]	dest	Pointer to the operand
[in]	length	Length of the operand, in bits
[in]	src	Pointer to the scalar

Definition at line 54 of file m480_crypto_pkc.c.

ecMulFast()

error_t ecMulFast	(	const EcCurve *	curve,
		EcPoint3 *	r,
		const uint32_t *	d,
		const EcPoint3 *	s
	)

Scalar multiplication (fast calculation)

Parameters

[in]	curve	Elliptic curve parameters
[out]	r	Resulting point R = d.S
[in]	d	An integer d such as 0 <= d < p
[in]	s	EC point

Returns

Error code

Definition at line 100 of file m480_crypto_pkc.c.

ecMulRegular()

error_t ecMulRegular	(	const EcCurve *	curve,
		EcPoint3 *	r,
		const uint32_t *	d,
		const EcPoint3 *	s
	)

Scalar multiplication (regular calculation)

Parameters

[in]	curve	Elliptic curve parameters
[out]	r	Resulting point R = d.S
[in]	d	An integer d such as 0 <= d < q
[in]	s	EC point

Returns

Error code

Definition at line 117 of file m480_crypto_pkc.c.

ecTwinMul()

error_t ecTwinMul	(	const EcCurve *	curve,
		EcPoint3 *	r,
		const uint32_t *	d0,
		const EcPoint3 *	s,
		const uint32_t *	d1,
		const EcPoint3 *	t
	)

Twin multiplication.

Parameters

[in]	curve	Elliptic curve parameters
[out]	r	Resulting point R = d0.S + d1.T
[in]	d0	An integer d such as 0 <= d0 < p
[in]	s	EC point
[in]	d1	An integer d such as 0 <= d1 < p
[in]	t	EC point

Returns

Error code

Definition at line 203 of file m480_crypto_pkc.c.