I'm getting ready to begin a project that will be transmitting sensitive data. The program will need to send sensitive data and receive sensitive data. This project will require JavaScript to send/receive this data.
Are there any good books or resources for learning about JavaScript encryption techniques. I've done some basic googling and have found a few decent articles here and there but I'm looking for something or someone which can provide me with deep look into JavaScript encryption.

I've found these 4 books but not sure what to pick. I took 1 security class 2 years ago (college), so I have a basic understanding of web security. But, I would by no means call myself an expert in security techniques.

Web 2.0 Security - Defending AJAX, RIA, AND SOA
Ajax Security
Developer's Guide to Web Application Security
The Web Application Hacker's Handbook: Discovering and Exploiting Security Flaws

All can be found on amazon.