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/*
* Copyright (C) 2012 Tobias Brunner
* Copyright (C) 2008 Andreas Steffen
* Hochschule fuer Technik Rapperswil, Switzerland
*
* 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. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* 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.
*/
/**
* @defgroup pkcs7_attributes pkcs7_attributes
* @{ @ingroup pkcs7p
*/
#ifndef PKCS7_ATTRIBUTES_H_
#define PKCS7_ATTRIBUTES_H_
typedef struct pkcs7_attributes_t pkcs7_attributes_t;
#include <library.h>
/**
* PKCS#7 attribute lists, aka PKCS#9.
*/
struct pkcs7_attributes_t {
/**
* Gets ASN.1 encoding of PKCS#9 attribute list.
*
* @return ASN.1 encoded PKCSI#9 list
*/
chunk_t (*get_encoding) (pkcs7_attributes_t *this);
/**
* Gets a PKCS#9 attribute from the list.
*
* @param oid OID of the attribute
* @return value of the attribute (internal data)
*/
chunk_t (*get_attribute) (pkcs7_attributes_t *this, int oid);
/**
* Adds a PKCS#9 attribute.
*
* @param oid OID of the attribute
* @param value value of the attribute, with ASN1 type (gets owned)
*/
void (*add_attribute) (pkcs7_attributes_t *this, int oid, chunk_t value);
/**
* Destroys the PKCS#9 attribute list.
*/
void (*destroy) (pkcs7_attributes_t *this);
};
/**
* Read a PKCS#7 attribute list (aka PKCS#9) from a DER encoded chunk.
*
* @param chunk chunk containing DER encoded data
* @param level ASN.1 parsing start level
* @return created pkcs9 attribute list, or NULL if invalid.
*/
pkcs7_attributes_t *pkcs7_attributes_create_from_chunk(chunk_t chunk, u_int level);
/**
* Create an empty PKCS#7 attribute list, aka PKCS#9.
*
* @return created pkcs9 attribute list.
*/
pkcs7_attributes_t *pkcs7_attributes_create(void);
#endif /** PKCS9_H_ @}*/
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