package eu.dnetlib.espas.gui.client;

import com.googlecode.gwt.crypto.bouncycastle.DataLengthException;
import com.googlecode.gwt.crypto.bouncycastle.InvalidCipherTextException;
import com.googlecode.gwt.crypto.client.TripleDesCipher;

public class Crypto {
	
	public static final byte[] GWT_DES_KEY = new byte[]{
			(byte)254,(byte)65,(byte)23,(byte)198,(byte)16,(byte)5,(byte)239,(byte)45,
			(byte)111,(byte)90,(byte)8,(byte)174,(byte)39,(byte)85,(byte)216,(byte)157,};
	
	public static String encrypt(String stringToEncrypt) {
		
		String encryptedString = null;
		
		TripleDesCipher cipher = new TripleDesCipher();
		cipher.setKey(GWT_DES_KEY);
		
		try {
			
			encryptedString = cipher.encrypt(stringToEncrypt);
			
		} catch (DataLengthException e) {
			e.printStackTrace();
		} catch (IllegalStateException e) {
			e.printStackTrace();
		} catch (InvalidCipherTextException e) {
			e.printStackTrace();
		} catch (Exception e) {
			e.printStackTrace();
		}
		
		return encryptedString;
	}

	public static String decrypt(String stringToDecrypt) {

		String decryptedString = null;
		
		TripleDesCipher cipher = new TripleDesCipher();
		cipher.setKey(GWT_DES_KEY);
		
		try {
			
			decryptedString = cipher.decrypt(stringToDecrypt);
			
		} catch (DataLengthException e) {
			e.printStackTrace();
		} catch (IllegalStateException e) {
			e.printStackTrace();
		} catch (InvalidCipherTextException e) {
			e.printStackTrace();
		}
		
		return decryptedString;
	}
}