PRNG based on new HCI devices entropy sources: Wii remote study case

Abstract

This paper analyzes the possibilities of cutting edge HCI (HumanComputer Interaction) devices for random number generation. Their increasing presence in electronic devices is a fact, so they may be taken into account for PRNG. As an example, the Wii control device (Wii Remote) is analyzed. Among other characteristics, it includes accelerometers and an IR camera, which can be a valid source of entropic information. As these characteristics are appearing in other devices (for example, mobile phones), the aim of this paper is to study the reliability of these sensors as sources of non-predictive information, which could be useful in many areas. Standard algorithm methodologies are used to corroborate the analysis. Its usage as seed of a PRNG could be analyzed by other kind of tests, NIST SP 800-22 among others.