Given final block not properly padded

获取Cipher对象的时候一定要写成

Cipher cipher = Cipher.getInstance("DES/ECB/NoPadding");

不要写成

Cipher cipher = Cipher.getInstance("DES");

否则解密的时候会报错：

Given final block not properly padded

原因是Cipher cipher = Cipher.getInstance("DES");与Cipher cipher = Cipher.getInstance("DES/ECB/PKCS5Padding");等同，填充方式错误，加密的时候会得到16长度的字节数组。

转载地址:http://lhc1986.iteye.com/blog/1730477