Akinori Kawachi

String commitment scheme with low output locality

2019

Commitment schemes are important tools for various protocols. However, no scheme with output locality have been proposed yet. Low output locality is a property of functions that every output bit to depend on a small …

Scalability Evaluation of Secure Computations for Multi-Issue Negotiation

2026 · IEICE Transactions on Information and Systems

In multi-issue negotiation problems within multi-agent systems, it is essential to preserve the privacy of each agent's utility information. Fujita, Ito, and Klein proposed a negotiation protocol based on local search, in which the utility …