A mobility model of GPS-based encryption

Wireless networking is a growing field thanks to recent advances in mobile and wireless device technologies. Secure communication between wireless hosts is necessary in certain applications and GPS-based encryption complements traditional encryption techniques by restricting the decryption of a message to a particular geographical area and time period. Existing geo-encryption techniques have limited support for mobile nodes. Therefore, we propose a mobility model for existing geo-encryption techniques that allow mobile nodes to exchange movement parameters, so that a sender is able to geo-encrypt messages to a moving decryption zone that contains a mobile node´s estimated location. We also present methods for estimating the node´s movement parameters and optimizing the goals of secure wireless communication.