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/*
* Copyright (C) 2008 Martin Willi
* HSR Hochschule fuer Technik Rapperswil
*
* 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 cert_cache cert_cache
* @{ @ingroup sets
*/
#ifndef CERT_CACHE_H_
#define CERT_CACHE_H_
#include <credentials/credential_set.h>
typedef struct cert_cache_t cert_cache_t;
/**
* Certificate signature verification and certificate cache.
*
* This cache serves all certificates seen in its issued_by method
* and serves them as untrusted through the credential set interface. Further,
* it caches valid subject-issuer relationships to speed up the issued_by
* method.
*/
struct cert_cache_t {
/**
* Implements credential_set_t.
*/
credential_set_t set;
/**
* Caching wrapper around certificate_t.issued_by.
*
* @param subject certificate to verify
* @param issuer issuing certificate to verify subject
* @param scheme receives used signature scheme and parameters, if
* given (allocated)
* @return TRUE if subject issued by issuer
*/
bool (*issued_by)(cert_cache_t *this,
certificate_t *subject, certificate_t *issuer,
signature_params_t **scheme);
/**
* Flush the certificate cache.
*
* @param type type of certificate to flush, or CERT_ANY
*/
void (*flush)(cert_cache_t *this, certificate_type_t type);
/**
* Destroy a cert_cache instance.
*/
void (*destroy)(cert_cache_t *this);
};
/**
* Create a cert_cache instance.
*/
cert_cache_t *cert_cache_create();
#endif /** CERT_CACHE_H_ @}*/
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