BadPaddingException : Decryption error

Question

I\'m writing a program which takes as input from the console - the name of a zip file, name of a zip file to be made containing the (de/en)crypted files generated from the f

Answer 1

while((read = inputEntry.read(buffer)) != -1){              
        outputFile.write(cipher.doFinal(buffer), 0, read);
    }

You have a problem here. read is the size of the plaintext that was read, not the ciphertext. You should remove the 2nd and 3rd parameters altogether.

It is also a waste of time and space to write the ciphertext to an intermediate file. Just write it straight to the zip stream.