A PUBLIC KEY MANAGEMENT SCHEME AND THRESHOLD- MULTISIGNATURE SCHEME FOR MOBILE AD HOC NETWORKS

摘要

Mobile ad hoc networks offer communication over a shared wireless channel without any pre-existing infrastructure. Threshold digital signatures are an important cryptographic tool used in most existing key management schemes for mobile ad hoc networks. This paper proposes a threshold-multisignature scheme designed specifically for mobile ad hoc networks. The signature scheme allows a subset of shareholders with threshold t, to sign an arbitrary message on behalf of the group. The group signature is publicly verifiable and allows any outsider to establish the identity of the individual signers. The paper proposes a self-certified public key issuing protocol that allows negotiation between a single entity and a distributed certificate authority for an implicit self-certified public key.