One Time Proxy Signature

Abstract

Digital signatures meet the requirements of non-repudiation and data origin. In case that the original signer cannot perform some signing tasks, he can delegate his signing ability to the proxy signer, which is so called proxy signatures. In this paper, we elaborate on the environments of one time property to propose a solution for one time proxy signature. That is, the proxy signer can only produce one proxy signature. If there are two proxy signatures are made, the private key of the proxy signer will be exposed.