// uniCenta oPOS - Touch Friendly Point Of Sale
// Copyright (c) 2009-2013 uniCenta
// http://www.unicenta.net/unicentaopos
//
// This file is part of uniCenta oPOS
//
// uniCenta oPOS is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// uniCenta oPOS 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with uniCenta oPOS. If not, see <http://www.gnu.org/licenses/>.
package com.openbravo.pos.util;
import java.io.UnsupportedEncodingException;
import java.security.*;
import javax.crypto.*;
public class AltEncrypter {
private Cipher cipherDecrypt;
private Cipher cipherEncrypt;
/** Creates a new instance of Encrypter */
public AltEncrypter(String passPhrase) {
try {
SecureRandom sr = SecureRandom.getInstance("SHA1PRNG");
sr.setSeed(passPhrase.getBytes("UTF8"));
KeyGenerator kGen = KeyGenerator.getInstance("DESEDE");
kGen.init(168, sr);
Key key = kGen.generateKey();
cipherEncrypt = Cipher.getInstance("DESEDE/ECB/PKCS5Padding");
cipherEncrypt.init(Cipher.ENCRYPT_MODE, key);
cipherDecrypt = Cipher.getInstance("DESEDE/ECB/PKCS5Padding");
cipherDecrypt.init(Cipher.DECRYPT_MODE, key);
// } catch (UnsupportedEncodingException e) { // JG 1 Oct 13 - use multicatch
// } catch (NoSuchPaddingException e) {
// } catch (NoSuchAlgorithmException e) {
// } catch (InvalidKeyException e) {
} catch (UnsupportedEncodingException | NoSuchPaddingException | NoSuchAlgorithmException | InvalidKeyException e) {
}
}
public String encrypt(String str) {
try {
return StringUtils.byte2hex(cipherEncrypt.doFinal(str.getBytes("UTF8")));
} catch (UnsupportedEncodingException | BadPaddingException | IllegalBlockSizeException e) {
// } catch (UnsupportedEncodingException e) { // JG 1 Oct 13 - use multicatch
// } catch (BadPaddingException e) {
// } catch (IllegalBlockSizeException e) {
}
return null;
}
public String decrypt(String str) {
try {
return new String(cipherDecrypt.doFinal(StringUtils.hex2byte(str)), "UTF8");
} catch (UnsupportedEncodingException | BadPaddingException | IllegalBlockSizeException e) {
// } catch (UnsupportedEncodingException e) { // JG 1 Oct 13 - use multicatch
// } catch (BadPaddingException e) {
// } catch (IllegalBlockSizeException e) {
}
return null;
}
}