DES加密时正常，解密时出错了：

java.security.InvalidKeyException: Parameters missing
  at com.sun.crypto.provider.CipherCore.init(CipherCore.java:469)
  at com.sun.crypto.provider.DESCipher.engineInit(DESCipher.java:186)
  at javax.crypto.Cipher.implInit(Cipher.java:805)
  at javax.crypto.Cipher.chooseProvider(Cipher.java:867)
  at javax.crypto.Cipher.init(Cipher.java:1252)
  at javax.crypto.Cipher.init(Cipher.java:1189)

代码如下：

public static void decrypt()
{
    Cipher cipher = decryptCipher = Cipher.getInstance(CIPHER_ALGORITHM);
    Key key = CipherDES.generateKey(CdkeyGenerator.PASSWORD);
    cipher.init(Cipher.DECRYPT_MODE, key);
    byte[] decryptedBytes = cipher.doFinal(validateBytes);
}

解决办法：

错误的参数：String CIPHER_ALGORITHM = "DES/CBC/PKCS5Padding";
正确的参数：String CIPHER_ALGORITHM = "DES/ECB/PKCS5Padding";