Free book, "Hacking Secret Ciphers with Python"

[Karim]

On 20/04/2013 08:37, asweigart at gmail.com wrote:
> I've released my third book, "Hacking Secret Ciphers with Python" for free under a Creative Commons license. This book is aimed at people who have no experience programming or with cryptography. The book goes through writing Python programs that not only implement several ciphers but also can hack these ciphers. Each chapter presents a new program and explains how the source code works.
>
> You can download the book from http://inventwithpython.com/hacking
>
> 100% of the proceeds from the book sales will be donated to the Electronic Frontier Foundation, Creative Commons, and The Tor Project.
Very good book!

1000 Thanks for your unvaluable work.

By the way who is Aaron?

Karim
France