/*
* Copyright (C) 2012, Katy Hilgenberg.
* Special acknowledgments to: Knowledge & Data Engineering Group, University of Kassel (http://www.kde.cs.uni-kassel.de).
* Contact: sdcf@cs.uni-kassel.de
*
* This file is part of the SDCFramework (Sensor Data Collection Framework) project.
*
* The SDCFramework is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The SDCFramework 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the SDCFramework. If not, see <http://www.gnu.org/licenses/>.
*/
package de.unikassel.android.sdcframework.util;
import java.io.File;
import java.security.InvalidParameterException;
import java.security.PublicKey;
import de.unikassel.android.sdcframework.util.facade.Encryption;
import de.unikassel.android.sdcframework.util.facade.FileEncryptionStrategy;
/**
* Implementation of the RSA file encryption strategy.
*
* @author Katy Hilgenberg
*
*/
public class RSAFileEncryptionStrategy
implements FileEncryptionStrategy
{
/**
* The public key for encryption
*/
private final PublicKey key;
/**
* Constructor
*
* @param key
* the public key for encryption
*/
public RSAFileEncryptionStrategy( PublicKey key )
{
if ( key == null )
throw new InvalidParameterException( "public key can not be null" );
this.key = key;
}
/*
* (non-Javadoc)
*
* @see de.unikassel.android.sdcframework.util.facade.FileEncryptionStrategy#
* encryptFile(java.io.File, java.io.File)
*/
@Override
public boolean encryptFile( File srcFile, File destFile )
{
return Encryption.encryptRSA( key, srcFile, destFile );
}
/*
* (non-Javadoc)
*
* @see de.unikassel.android.sdcframework.util.facade.FileEncryptionStrategy#
* getAlgorithmLetterCode()
*/
@Override
public String getAlgorithmLetterCode()
{
return "rsa";
}
}