pkcs7_encrypt.c File Reference

PKCS #7 message encryption. More...

#include "core/crypto.h"
#include "pkcs7/pkcs7_format.h"
#include "pkcs7/pkcs7_encrypt.h"
#include "cipher/cipher_algorithms.h"
#include "cipher_modes/cbc.h"
#include "pkix/x509_key_parse.h"
#include "debug.h"

Go to the source code of this file.

Macros
#define	TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Functions
error_t	pkcs7EncryptEnvelopedData (const PrngAlgo *prngAlgo, void *prngContext, const X509CertInfo *recipientCertInfo, const Pkcs7ContentEncrAlgo *contentEncrAlgo, const uint8_t *plaintext, size_t plaintextLen, uint8_t *output, size_t *written)
	Encrypt enveloped-data content. More...
error_t	pkcs7EncryptKey (const PrngAlgo *prngAlgo, void *prngContext, const X509CertInfo *recipientCertInfo, const uint8_t *plaintext, size_t plaintextLen, uint8_t *ciphertext, size_t *ciphertextLen)
	Perform key encryption. More...
error_t	pkcs7EncryptData (const Pkcs7EncryptedContentInfo *encryptedContentInfo, const uint8_t *key, size_t keyLen, const uint8_t *plaintext, size_t plaintextLen, uint8_t *ciphertext, size_t *ciphertextLen)
	Perform data encryption. More...

Detailed Description

PKCS #7 message encryption.

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

2.5.2

Definition in file pkcs7_encrypt.c.

Macro Definition Documentation

TRACE_LEVEL

#define TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Definition at line 32 of file pkcs7_encrypt.c.

Function Documentation

pkcs7EncryptData()

error_t pkcs7EncryptData	(	const Pkcs7EncryptedContentInfo *	encryptedContentInfo,
		const uint8_t *	key,
		size_t	keyLen,
		const uint8_t *	plaintext,
		size_t	plaintextLen,
		uint8_t *	ciphertext,
		size_t *	ciphertextLen
	)

Perform data encryption.

Parameters

[in]	encryptedContentInfo	Pointer to the encryptedContentInfo structure
[in]	key	Pointer to the encryption key
[in]	keyLen	Length of the encryption key, in bytes
[in]	plaintext	Pointer to the plaintext data to be encrypted
[in]	plaintextLen	Length of the plaintext, in bytes
[out]	ciphertext	Ciphertext resulting from the encryption operation
[out]	ciphertextLen	Length of the resulting ciphertext

Returns

Error code

Definition at line 183 of file pkcs7_encrypt.c.

pkcs7EncryptEnvelopedData()

error_t pkcs7EncryptEnvelopedData	(	const PrngAlgo *	prngAlgo,
		void *	prngContext,
		const X509CertInfo *	recipientCertInfo,
		const Pkcs7ContentEncrAlgo *	contentEncrAlgo,
		const uint8_t *	plaintext,
		size_t	plaintextLen,
		uint8_t *	output,
		size_t *	written
	)

Encrypt enveloped-data content.

Parameters

[in]	prngAlgo	PRNG algorithm
[in]	prngContext	Pointer to the PRNG context
[in]	recipientCertInfo	Recipient's certificate
[in]	contentEncrAlgo	Content encryption algorithm
[in]	plaintext	Pointer to the message to be encrypted
[in]	plaintextLen	Length of the message, in bytes
[out]	output	Buffer where to format the ASN.1 structure
[out]	written	Length of the resulting ASN.1 structure

Returns

Error code

Definition at line 60 of file pkcs7_encrypt.c.

pkcs7EncryptKey()

error_t pkcs7EncryptKey	(	const PrngAlgo *	prngAlgo,
		void *	prngContext,
		const X509CertInfo *	recipientCertInfo,
		const uint8_t *	plaintext,
		size_t	plaintextLen,
		uint8_t *	ciphertext,
		size_t *	ciphertextLen
	)

Perform key encryption.

Parameters

[in]	prngAlgo	PRNG algorithm
[in]	prngContext	Pointer to the PRNG context
[in]	recipientCertInfo	Recipient's certificate
[in]	plaintext	Pointer to the key to be encrypted
[in]	plaintextLen	Length of the key, in bytes
[out]	ciphertext	Ciphertext resulting from the encryption operation
[out]	ciphertextLen	Length of the resulting ciphertext

Returns

Error code

Definition at line 126 of file pkcs7_encrypt.c.