CryptoJS is a growing collection of standard and secure cryptographic algorithms implemented in JavaScript using best practices and patterns. They are fast, and they have a consistent and simple interface.
If you have a problem with CryptoJS, if you want to discuss new features, or if you want to contribute to the project, you can visit the CryptoJS discussion group.
http://groups.google.com/group/crypto-js/topics
https://code.google.com/p/crypto-js/#AES