Creating a titanium module for encryption (ios and Android)

The module should provide the following capabilities for both Android and ios: 1- Creating a diffie hellman key (private and public) 2- AES encryption (256 bits) 3- Generating public/private RSA keys 4- RSA encryption using public key 5- RSA decryption using private key 6- Signing messages with RSA 7- Verifying RSA signatures There are javascript only libraries that do all the above (using big integers, etc: [login to view URL]~tjw/jsbn/) but their performance is extremely bad for production environment. The goal of this project is to create a cross platform module that can bring the native performance to Titanium for encryption. So, no javascript should be used in developing the modules (i.e. all-native-code). There are modules in Titanium's marketplace that perform a subset of above tasks for ios but this module needs to be cross platform (ios/android) and provide all of the above functionalities. A lot of the above functionalities is provided in ios through the security framework and Android's X509 library. The goal is to have a uniform interface for both platforms in Titanium. References: [login to view URL]://blog.yorkgu.me/2011/10/27/rsa-in-ios-using-publick-key-generated-by-openssl/&usg=ALkJrhgIjwsDO0Uh2JxPG8W2Np-g5LFwDg [login to view URL] [login to view URL]