Proxy and threshold one-time signatures

Abstract

One-time signatures are an important and efficient authentication utility. Various schemes already exist for the classical one-way public-key cryptography. One-time signatures have not been sufficiently explored in the literature in the branch of society-oriented cryptography. Their particular properties make them suitable, as a potential cryptographic primitive, for broadcast communication and group-based applications. In this paper, we try to contribute to filling this gap by introducing several group-based one-time signature schemes of various versions: with proxy, with trusted party, and without trusted party. © Springer-Verlag Berlin Heidelberg 2003.