STM32U5 public-key hardware accelerator (PKA) More...

#include "stm32u5xx.h"
#include "stm32u5xx_hal.h"
#include "core/crypto.h"
#include "hardware/stm32u5xx/stm32u5xx_crypto.h"
#include "hardware/stm32u5xx/stm32u5xx_crypto_pkc.h"
#include "pkc/rsa.h"
#include "ecc/ec.h"
#include "ecc/ecdsa.h"
#include "ecc/curve25519.h"
#include "ecc/curve448.h"
#include "debug.h"

Macros
#define	TRACE_LEVEL CRYPTO_TRACE_LEVEL

Functions
error_t	pkaInit (void)
	PKA module initialization. More...

void	pkaImportArray (const uint8_t *src, size_t srcLen, uint_t destLen, uint_t offset)
	Import byte array. More...

void	pkaImportMpi (const Mpi *a, uint_t length, uint_t offset)
	Import multiple-precision integer. More...

error_t	pkaExportMpi (Mpi *r, uint_t length, uint_t offset)
	Export multiple-precision integer. More...

error_t	mpiExpMod (Mpi r, const Mpi a, const Mpi e, const Mpi p)
	Modular exponentiation. More...

error_t	pkaRsaCrtExp (const RsaPrivateKey key, const Mpi c, Mpi *m)
	Modular exponentiation with CRT. More...

error_t	rsadp (const RsaPrivateKey key, const Mpi c, Mpi *m)
	RSA decryption primitive. More...

error_t	ecMult (const EcDomainParameters params, EcPoint r, const Mpi d, const EcPoint s)
	Scalar multiplication. More...

error_t	ecdsaGenerateSignature (const PrngAlgo prngAlgo, void prngContext, const EcDomainParameters params, const EcPrivateKey privateKey, const uint8_t digest, size_t digestLen, EcdsaSignature signature)
	ECDSA signature generation. More...

error_t	ecdsaVerifySignature (const EcDomainParameters params, const EcPublicKey publicKey, const uint8_t digest, size_t digestLen, const EcdsaSignature signature)
	ECDSA signature verification. More...

void	curve25519Mul (uint32_t r, const uint32_t a, const uint32_t *b)
	Modular multiplication. More...

void	curve448Mul (uint32_t r, const uint32_t a, const uint32_t *b)
	Modular multiplication. More...

Detailed Description

STM32U5 public-key hardware accelerator (PKA)

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: 2.4.0

Definition in file stm32u5xx_crypto_pkc.c.

Macro Definition Documentation

◆ TRACE_LEVEL

#define TRACE_LEVEL CRYPTO_TRACE_LEVEL

Definition at line 32 of file stm32u5xx_crypto_pkc.c.

Function Documentation

◆ curve25519Mul()

void curve25519Mul	(	uint32_t *	r,
		const uint32_t *	a,
		const uint32_t *	b
	)

Modular multiplication.

Parameters

[out]	r	Resulting integer R = (A * B) mod p
[in]	a	An integer such as 0 <= A < p
[in]	b	An integer such as 0 <= B < p

Definition at line 817 of file stm32u5xx_crypto_pkc.c.

◆ curve448Mul()

void curve448Mul	(	uint32_t *	r,
		const uint32_t *	a,
		const uint32_t *	b
	)

Modular multiplication.

Parameters

[out]	r	Resulting integer R = (A * B) mod p
[in]	a	An integer such as 0 <= A < p
[in]	b	An integer such as 0 <= B < p

Definition at line 941 of file stm32u5xx_crypto_pkc.c.

◆ ecdsaGenerateSignature()

error_t ecdsaGenerateSignature	(	const PrngAlgo *	prngAlgo,
		void *	prngContext,
		const EcDomainParameters *	params,
		const EcPrivateKey *	privateKey,
		const uint8_t *	digest,
		size_t	digestLen,
		EcdsaSignature *	signature
	)

ECDSA signature generation.

Parameters

[in]	prngAlgo	PRNG algorithm
[in]	prngContext	Pointer to the PRNG context
[in]	params	EC domain parameters
[in]	privateKey	Signer's EC private key
[in]	digest	Digest of the message to be signed
[in]	digestLen	Length in octets of the digest
[out]	signature	(R, S) integer pair

Returns: Error code

Definition at line 567 of file stm32u5xx_crypto_pkc.c.

◆ ecdsaVerifySignature()

error_t ecdsaVerifySignature	(	const EcDomainParameters *	params,
		const EcPublicKey *	publicKey,
		const uint8_t *	digest,
		size_t	digestLen,
		const EcdsaSignature *	signature
	)

ECDSA signature verification.

Parameters

[in]	params	EC domain parameters
[in]	publicKey	Signer's EC public key
[in]	digest	Digest of the message whose signature is to be verified
[in]	digestLen	Length in octets of the digest
[in]	signature	(R, S) integer pair

Returns: Error code

Definition at line 698 of file stm32u5xx_crypto_pkc.c.

◆ ecMult()

error_t ecMult	(	const EcDomainParameters *	params,
		EcPoint *	r,
		const Mpi *	d,
		const EcPoint *	s
	)

Scalar multiplication.

Parameters

[in]	params	EC domain 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 442 of file stm32u5xx_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 235 of file stm32u5xx_crypto_pkc.c.

◆ pkaExportMpi()

error_t pkaExportMpi	(	Mpi *	r,
		uint_t	length,
		uint_t	offset
	)

Export multiple-precision integer.

Parameters

[out]	r	Pointer to the multiple-precision integer
[in]	length	Length of the operand, in bits
[in]	offset	PKA ram offset

Returns: Error code

Definition at line 185 of file stm32u5xx_crypto_pkc.c.

◆ pkaImportArray()

void pkaImportArray	(	const uint8_t *	src,
		size_t	srcLen,
		uint_t	destLen,
		uint_t	offset
	)

Import byte array.

Parameters

[in]	src	Pointer to the byte array
[in]	srcLen	Length of the array to be copied, in bytes
[in]	destLen	Length of the operand, in bits
[in]	offset	PKA ram offset

Definition at line 86 of file stm32u5xx_crypto_pkc.c.

◆ pkaImportMpi()

void pkaImportMpi	(	const Mpi *	a,
		uint_t	length,
		uint_t	offset
	)

Import multiple-precision integer.

Parameters

[in]	a	Pointer to the multiple-precision integer
[in]	length	Length of the operand, in bits
[in]	offset	PKA ram offset

Definition at line 148 of file stm32u5xx_crypto_pkc.c.

◆ pkaInit()

error_t pkaInit ( void )

PKA module initialization.

Returns: Error code

Definition at line 56 of file stm32u5xx_crypto_pkc.c.

◆ pkaRsaCrtExp()

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

Modular exponentiation with CRT.

Parameters

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

Returns: Error code

Definition at line 318 of file stm32u5xx_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 401 of file stm32u5xx_crypto_pkc.c.

Macros

Functions

Detailed Description

License

Macro Definition Documentation

◆ TRACE_LEVEL

Function Documentation

◆ curve25519Mul()

◆ curve448Mul()

◆ ecdsaGenerateSignature()

◆ ecdsaVerifySignature()

◆ ecMult()

◆ mpiExpMod()

◆ pkaExportMpi()

◆ pkaImportArray()

◆ pkaImportMpi()

◆ pkaInit()

◆ pkaRsaCrtExp()

◆ rsadp()