package login;

import java.text.SimpleDateFormat;
import java.util.Date;

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;

import org.apache.commons.codec.binary.Base64;

public class Security {
	public static String getKey() {
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy");
		Date date = new Date();
		String formatDate = sdf.format(date);
		Date d = new Date(System.currentTimeMillis());
		String key = formatDate + "owenkasduf" + (new SimpleDateFormat("MM")).format(d);
		return key;
	}

	public static String encrypt(String input, String key) {
		byte[] crypted = null;
		try {
			SecretKeySpec skey = new SecretKeySpec(key.getBytes(), "AES");
			Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
			cipher.init(Cipher.ENCRYPT_MODE, skey);
			crypted = cipher.doFinal(input.getBytes());
		} catch (Exception e) {
			System.out.println(e.toString());
		}
		return new String(Base64.encodeBase64(crypted));
	}

	public static String decrypt(String input, String key) {
		byte[] output = null;
		try {
			SecretKeySpec skey = new SecretKeySpec(key.getBytes(), "AES");
			Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
			cipher.init(Cipher.DECRYPT_MODE, skey);
			output = cipher.doFinal(Base64.decodeBase64(input));
		} catch (Exception e) {
			System.out.println(e.toString());
		}
		return new String(output);
	}

}