New ID-based fair off-line electronic cash scheme

In order to design a secure and efficient electronic cash scheme,this paper proposed a new ID-based fair off-line electronic cash scheme based on restrictive partially blind signature.The scheme effectively constructed double-spending detection protocol by using signature of proof of knowledge and achieved coin tracing protocol and owner tracing protocol.The scheme was proved to be unforgeable,anonymous,fair and effective.Compared with the existing scheme,the proposed scheme can prevent the double-spending of account holder and has obvious advantages in withdrawal protocol and payment protocol by using less high time-consuming operation.