Why does a bad password cause “Padding is invalid and cannot be removed”?

Question

I needed some simple string encryption, so I wrote the following code (with a great deal of \"inspiration\" from here):

    // create and initialize a crypto         


        

Answer 1

I had a similar problem, the issue in decrypt method was initializing an empty memory stream. when it worked when I initialized it with the cipher text byte array like this:

MemoryStream ms = new MemoryStream(cipherText)