DESUtils.java 文件源码

/**
 * 加密
 * @param data
 * @param password
 * @return
 */
public static byte[] encrypt(byte[] data, String password) {
    try {
        SecureRandom random = new SecureRandom();
        DESKeySpec desKey = new DESKeySpec(password.getBytes());
        //创建一个密匙工厂，然后用它把DESKeySpec转换成
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
        SecretKey securekey = keyFactory.generateSecret(desKey);
        //Cipher对象实际完成加密操作
        Cipher cipher = Cipher.getInstance("DES");
        //用密匙初始化Cipher对象
        cipher.init(Cipher.ENCRYPT_MODE, securekey, random);
        //现在，获取数据并加密
        //正式执行加密操作
        return cipher.doFinal(data);
    } catch (Throwable e) {
        e.printStackTrace();
    }

    return null;
}