Ci. Fan et Cl. Lei, LOW-COMPUTATION PARTIALLY BLIND SIGNATURES FOR ELECTRONIC CASH, IEICE transactions on fundamentals of electronics, communications and computer science, E81A(5), 1998, pp. 818-824
Citations number
36
Categorie Soggetti
Engineering, Eletrical & Electronic","Computer Science Hardware & Architecture","Computer Science Information Systems
In a secure partially blind signature scheme, the signer assures that
the blind signatures issued by him contains the information he desires
. The techniques make it possible to minimize the unlimited growth of
the bank's database which storing all spent electronic cash in an anon
ymous electronic cash system. In this paper we propose an efficient pa
rtially blind signature scheme for electronic cash. In our scheme, onl
y several modular additions and modular multiplications are required f
or a signature requester to obtain and verify a signature. It turns ou
t that the proposed scheme is suitable for mobile clients and smart-ca
rd applications because no time-consuming computations are required, s
uch as modular exponentiation and inverse computations. Comparing with
the existing blind signature schemes proposed in the literatures, our
method reduces the amount of computations for signature requesters by
almost 98%.