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/**
 * Copyright (c) 2008 Sonatype, Inc. All rights reserved.
 *
 * This program is licensed to you under the Apache License Version 2.0,
 * and you may not use this file except in compliance with the Apache License Version 2.0.
 * You may obtain a copy of the Apache License Version 2.0 at http://www.apache.org/licenses/LICENSE-2.0.
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the Apache License Version 2.0 is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Apache License Version 2.0 for the specific language governing permissions and limitations there under.
 */
package org.sonatype.plexus.components.cipher;

import java.security.Provider;
import java.util.Map;

/**
 * @author Oleg Gusakov
 */
public interface PlexusCipher
{
    public static String ROLE = PlexusCipher.class.getName();

    public static final char ENCRYPTED_STRING_DECORATION_START = '{';

    public static final char ENCRYPTED_STRING_DECORATION_STOP = '}';

    /**
     * encrypt given string with the given passPhrase and encode it into base64
     * 
     * @param str
     * @param passPhrase
     * @return
     * @throws PlexusCipherException
     */
    String encrypt( String str, String passPhrase )
        throws PlexusCipherException;

    /**
     * encrypt given string with the given passPhrase, encode it into base64 and return result, wrapped into { }
     * decorations
     * 
     * @param str
     * @param passPhrase
     * @return
     * @throws PlexusCipherException
     */
    String encryptAndDecorate( String str, String passPhrase )
        throws PlexusCipherException;

    /**
     * decrypt given base64 encrypted string
     * 
     * @param str
     * @param passPhrase
     * @return
     * @throws PlexusCipherException
     */
    String decrypt( String str, String passPhrase )
        throws PlexusCipherException;

    /**
     * decrypt given base64 encoded encrypted string. If string is decorated, decrypt base64 encoded string inside
     * decorations
     * 
     * @param str
     * @param passPhrase
     * @return
     * @throws PlexusCipherException
     */
    String decryptDecorated( String str, String passPhrase )
        throws PlexusCipherException;

    /**
     * check if given string is decorated
     * 
     * @param str
     * @return
     */
    public boolean isEncryptedString( String str );

    /**
     * return string inside decorations
     * 
     * @param str
     * @return
     * @throws PlexusCipherException
     */
    public String unDecorate( String str )
        throws PlexusCipherException;

    /**
     * decorated given string with { and }
     * 
     * @param str
     * @return
     */
    public String decorate( String str );

}