/**
 * Licensed to the University Corporation for Advanced Internet
 * Development, Inc. (UCAID) under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for
 * additional information regarding copyright ownership.
 *
 * UCAID licenses this file to you under the Apache License,
 * Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the
 * License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific
 * language governing permissions and limitations under the License.
 */

/**
 * @file xmltooling/encryption/EncryptedKeyResolver.h
 * 
 * Resolves encrypted keys based on EncryptedData information or other external factors.
 */

#if !defined(__xmltooling_enckeyres_h__) && !defined(XMLTOOLING_NO_XMLSEC)
#define __xmltooling_enckeyres_h__

#include <xmltooling/encryption/Encryption.h>

namespace xmlencryption {

    /**
     * An API for resolving encrypted decryption keys.
     */
    class XMLTOOL_API EncryptedKeyResolver {
        MAKE_NONCOPYABLE(EncryptedKeyResolver);
    public:
        EncryptedKeyResolver();
        virtual ~EncryptedKeyResolver();
        
        /**
         * Returns an encrypted key based on the supplied object's KeyInfo information.
         * 
         * @param encryptedData an encrypted object
         * @param recipient identifier of recipient of encrypted key
         * @return  the resolved EncryptedKey object
         */
        virtual const EncryptedKey* resolveKey(const EncryptedData& encryptedData, const XMLCh* recipient=nullptr) const;
    };

};

#endif /* __xmltooling_enckeyres_h__ */