I am trying to encrypt and decrypt a message(String) using a given key string. For that, two seperate methods (one for encrypt and the other for decrypt) were called and when these methods are called from my applicaion. I am getting the below exception while decrypting. The encryption and decryption operations are working properly for the first time.Again if I call the methods with different message and key value it is throwing the below exception.
javax.crypto.BadPaddingException: Given final block not properly padded
I don't think that, there is a problem with data. Because using the same data (key and message) when I try to call the encrypt/decrypt methods it is working properly. Also if I call the methods from my application for the first time, it will work fine. Please help me to solve the issue......
Looks complicated. Any particular reason you're using the asHex and hexStringToByteArray methods instead of somethingmore standard like base-64 encoding? Lots of tested libraries are available for that, so you'd know the problem isn't with that part.
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