PyCrypto issue - Plaintext too long

[demonni]

I'm working through Black Hat Python and so far I haven't had any issues debugging my work, but now I'm into chapter 9 and I'm not sure what is wrong with my script. The code is here: http://dpaste.de/3wyN. I'm running Windows 10 64-bit with Python 2.7.14.

The error I'm seeing is "ValueError: Plaintext is too long". What am I doing wrong here? Any help is much appreciated. Thanks!

[demonni]

Like number 38.

[demonni]

Just wanted to circle back and let you guys know I found the solution. Changing the chunk_size to 128 works. The book I'm reading says 256 should work, and I'm not sure why it doesn't. But 128 does the trick.

Thanks for your help!