Asymmetric Cryptography for Mobile Devices

This paper is meant to give the reader a general overview about the application of asymmetric cryptography in communication, particular in mobile devices. The basics principles of a cryptosystem are addressed, as well as the idea of symmetric and asymmetric cryptography. The functional principles of RSA encryption and the DiffieHellman key exchange scheme, as well as the general idea of digital signatures are shortly described. Furthermore some challenges and solution approaches for the application of asymmetric encryption in low power mobile devices are named. On completing, some the future developments in cryptography are shortly described.