A new design of efficient partially blind signature scheme

Recently, the techniques of the partially blind signatures played an important role in many electronic commerce applications. Therefore, to guarantee the quality of the growing popular communication services, it is urgent to construct low-computation partially blind signature scheme for both parties of the signer and the requester to obtain a signature. So far there is no efficient and secure partially blind signature scheme for the signer and a signature requester. Based on the discrete logarithin and the Chinese Remainder Theorem, we propose an efficient and secure partially blind signature scheme for both the signer and the requester to obtain a signature. Moreover. the proposed scheme is easier than the existing partially blind signature schemes in the blinding procedure. Hence, our proposed scheme is Suitable for the limited computation capacities of requesters such as smart cards or mobile units. Similarly, our scheme can let the signer provide more efficient services to the signature requester. So, it is very useful for many applications. (C) 2003 Elsevier Inc. All rights reserved.