Random Beacon for Privacy and Group Security

Abstract—Most contemporary security mechanisms and protocols include exchange of random or time-variant nonces as an essential means of protection against replay and other threats or as a seed for randomness. In many cases, it would be beneficial to have such nonces available from a trusted common source, such as a satellite. The goal of this paper is to present a protocol by which a loosely connected network of devices can agree on a common piece of randomness, and show how it can be applied to improve efficiency of a privacy protection system and group session key exchange for PAN/LAN devices.

• Type: Conference
• Year: 2008
• Where: WIMOB
• Authors: Aleksi Saarela, Jan-Erik Ekberg, Kaisa Nyberg
• Keywords: Contemporary Security Mechanisms, Mobile Computing, Protocols Include Exchange, Time-variant Nonces, WIMOB 2008