sama5d4_crypto_pkc.c File Reference

SAMA5D4 public-key hardware accelerator (CPKCC) More...

#include "chip.h"
#include "cpkcc/CryptoLib_cf.h"
#include "cpkcc/CryptoLib_JumpTable_Addr_pb.h"
#include "core/crypto.h"
#include "hardware/sama5d4/sama5d4_crypto.h"
#include "hardware/sama5d4/sama5d4_crypto_pkc.h"
#include "pkc/rsa.h"
#include "mpi/mpi.h"
#include "debug.h"

Go to the source code of this file.

Macros
#define	TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Functions
error_t	cpkccInit (void)
	Initialize CPKCC module. More...
uint8_t *	cpkccImportMpi (uint8_t **dest, const Mpi *src, size_t totalLen)
	Import multiple-precision integer. More...
uint8_t *	cpkccWorkspace (uint8_t **dest, size_t totalLen)
	Initialize workspace area. More...
error_t	mpiMul (Mpi *r, const Mpi *a, const Mpi *b)
	Multiple precision multiplication. More...
error_t	mpiMod2 (Mpi *r, const Mpi *a, const Mpi *p)
	Modulo operation. More...
error_t	mpiInvMod (Mpi *r, const Mpi *a, const Mpi *p)
	Modular inverse. More...
error_t	mpiExpMod (Mpi *r, const Mpi *a, const Mpi *e, const Mpi *p)
	Modular exponentiation. More...
error_t	mpiCheckProbablePrime (const Mpi *a)
	Test whether a number is probable prime. More...
error_t	rsadp (const RsaPrivateKey *key, const Mpi *c, Mpi *m)
	RSA decryption primitive. More...

Variables
PCPKCL_PARAM	pvCPKCLParam
CPKCL_PARAM	CPKCLParam

Detailed Description

SAMA5D4 public-key hardware accelerator (CPKCC)

License

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

Copyright (C) 2010-2026 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

2.6.0

Definition in file sama5d4_crypto_pkc.c.

Macro Definition Documentation

TRACE_LEVEL

#define TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Definition at line 32 of file sama5d4_crypto_pkc.c.

Function Documentation

cpkccImportMpi()

uint8_t* cpkccImportMpi	(	uint8_t **	dest,
		const Mpi *	src,
		size_t	totalLen
	)

Import multiple-precision integer.

Parameters

[in,out]	dest	Pointer to the crypto memory
[in]	src	Pointer to the multiple-precision integer
[in]	totalLen	Desired length of the area, in bytes

Returns

Pointer to the initialized area

Definition at line 104 of file sama5d4_crypto_pkc.c.

cpkccInit()

error_t cpkccInit

(

void

)

Initialize CPKCC module.

Definition at line 57 of file sama5d4_crypto_pkc.c.

cpkccWorkspace()

uint8_t* cpkccWorkspace	(	uint8_t **	dest,
		size_t	totalLen
	)

Initialize workspace area.

Parameters

[in,out]	dest	Pointer to the crypto memory
[in]	totalLen	Desired length of the area, in bytes

Returns

Pointer to the initialized area

Definition at line 129 of file sama5d4_crypto_pkc.c.

mpiCheckProbablePrime()

error_t mpiCheckProbablePrime

(

const Mpi *

a

)

Test whether a number is probable prime.

Parameters

[in]

a

Pointer to a multiple precision integer

Returns

Error code

Definition at line 549 of file sama5d4_crypto_pkc.c.

mpiExpMod()

error_t mpiExpMod	(	Mpi *	r,
		const Mpi *	a,
		const Mpi *	e,
		const Mpi *	p
	)

Modular exponentiation.

Parameters

[out]	r	Resulting integer R = A ^ E mod P
[in]	a	Pointer to a multiple precision integer
[in]	e	Exponent
[in]	p	Modulus

Returns

Error code

Definition at line 399 of file sama5d4_crypto_pkc.c.

mpiInvMod()

error_t mpiInvMod	(	Mpi *	r,
		const Mpi *	a,
		const Mpi *	p
	)

Modular inverse.

Parameters

[out]	r	Resulting integer R = A^-1 mod P
[in]	a	The multiple precision integer A
[in]	p	The modulus P

Returns

Error code

Definition at line 324 of file sama5d4_crypto_pkc.c.

mpiMod2()

error_t mpiMod2	(	Mpi *	r,
		const Mpi *	a,
		const Mpi *	p
	)

Modulo operation.

Parameters

[out]	r	Resulting integer R = A mod P
[in]	a	The multiple precision integer to be reduced
[in]	p	The modulus P

Returns

Error code

Definition at line 249 of file sama5d4_crypto_pkc.c.

mpiMul()

error_t mpiMul	(	Mpi *	r,
		const Mpi *	a,
		const Mpi *	b
	)

Multiple precision multiplication.

Parameters

[out]	r	Resulting integer R = A * B
[in]	a	First operand A
[in]	b	Second operand B

Returns

Error code

Definition at line 161 of file sama5d4_crypto_pkc.c.

rsadp()

error_t rsadp	(	const RsaPrivateKey *	key,
		const Mpi *	c,
		Mpi *	m
	)

RSA decryption primitive.

Parameters

[in]	key	RSA private key
[in]	c	Ciphertext representative
[out]	m	Message representative

Returns

Error code

Definition at line 695 of file sama5d4_crypto_pkc.c.

Variable Documentation

CPKCLParam

CPKCL_PARAM CPKCLParam

Definition at line 50 of file sama5d4_crypto_pkc.c.

pvCPKCLParam

PCPKCL_PARAM pvCPKCLParam

Definition at line 49 of file sama5d4_crypto_pkc.c.