kettle生成ktr文件_数据库密码的加密与解密

private static final int RADIX = 16;  private static final String SEED = "0933910847463829827159347601486730416058";  public  static final String PASSWORD_ENCRYPTED_PREFIX = "Encrypted ";  public static final String encryptPassword(String password){   if (password==null) return "";   if (password.length()==0) return "";      BigInteger bi_passwd = new BigInteger(password.getBytes());      BigInteger bi_r0  = new BigInteger(SEED);   BigInteger bi_r1  = bi_r0.xor(bi_passwd);      return bi_r1.toString(RADIX);   }  public static final String decryptPassword(String encrypted){   if (encrypted==null) return "";   if (encrypted.length()==0) return "";      BigInteger bi_confuse  = new BigInteger(SEED);      try   {    BigInteger bi_r1 = new BigInteger(encrypted, RADIX);    BigInteger bi_r0 = bi_r1.xor(bi_confuse);        return new String(bi_r0.toByteArray());    }   catch(Exception e)   {    return "";   }  }