Multi-Party Trust Computation in Decentralized Environments

In this paper, we describe a decentralized privacy-preserving protocol for securely casting trust ratings in distributed reputation systems. Our protocol allows n participants to cast their votes in a way that preserves the privacy of individual values against both internal and external attacks. The protocol is coupled with an extensive theoretical analysis in which we formally prove that our protocol is resistant to collusion against as many as n-1 corrupted nodes in the semi-honest model. The behavior of our protocol is tested in a real P2P network by measuring its communication delay and processing overhead. The experimental results uncover the advantages of our protocol over previous works in the area; without sacrificing security, our decentralized protocol is shown to be almost one order of magnitude faster than the previous best protocol for providing anonymous feedback.

Decentralization and Governance for Sustainable Society in Indonesia

Indonesia, over the past two decades, has embarked on a process of decentralization as part of a broader process of democratization, which followed earlier periods of centralized governance and authoritarian rule across the archipelago. The purpose of this book is to explore the connections between governance and sustainable society in a wide variety of policy fields in Indonesia,Indonesia and how reforming governance structures may contribute to societal benefits and the creation of a long-term sustainable society. The structures created may be characterized as a variable form of multi-governance, with varying types of relationships between the central government and newly empowered local governments.