Pinocchio: Incentives for Honest Participation in Distributed Trust Management

Abstract. In this paper, we introduce a framework for providing incentives for honest participation in global-scale distributed trust management infrastructures. Our system can improve the quality of information supplied by these systems by reducing free-riding and encouraging honesty. Our approach is twofold: (1) we provide rewards for participants that advertise their experiences to others, and (2) impose the credible threat of halting the rewards, for a substantial amount of time, for participants who consistently provide suspicious feedback. For this purpose we develop an honesty metric which can indicate the accuracy of feedback.

• Type: Conference
• Year: 2004
• Where: ITRUST
• Authors: Alberto Fernandes, Evangelos Kotsovinos, Sven Östring, Boris Dragovic
• Keywords: Encouraging Honesty, Global-scale Distributed Trust, Honest Participation, ITRUST 2004