br.com.zeros.tipsandtricks.cryto.EncryptionStrings.java Source code

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Here is the source code for br.com.zeros.tipsandtricks.cryto.EncryptionStrings.java

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package br.com.zeros.tipsandtricks.cryto;

import java.security.Key;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;

/**
 *
 * @author eros
 */
public class EncryptionStrings {

    public static final String myEncryptionKey = "$*%&|@#|-_?!";
    private static final String ALGORITHM = "AES";
    private static final String UNICODE_FORMAT = "UTF8";

    private static Key generateKey() throws Exception {
        byte[] keyAsBytes;
        keyAsBytes = myEncryptionKey.getBytes(UNICODE_FORMAT);
        Key key = new SecretKeySpec(keyAsBytes, ALGORITHM);
        return key;
    }

    public static String encrypt(String valueToEnc) throws Exception {
        Key key = generateKey();
        Cipher c = Cipher.getInstance(ALGORITHM);
        c.init(Cipher.ENCRYPT_MODE, key);
        byte[] encValue = c.doFinal(valueToEnc.getBytes());
        String encryptedValue = new Base64().encodeToString(encValue);
        return encryptedValue;
    }

    public static String decrypt(String encryptedValue) throws Exception {
        Key key = generateKey();
        Cipher c = Cipher.getInstance(ALGORITHM);
        c.init(Cipher.DECRYPT_MODE, key);
        byte[] decordedValue = new Base64().decode(encryptedValue);
        byte[] decValue = c.doFinal(decordedValue);//////////LINE 50
        String decryptedValue = new String(decValue);
        return decryptedValue;
    }

}