Abstract:
To solve the current electronic coupon problem,an efficient and secure verifiable electronic coupon scheme is proposed.In the scheme,mobile phone is used as electronic coupon's supporter,and the model of distributed verification is used.Compared with other schemes,the negotiability and security of electronic coupon are improved.The correctness,security and efficiency of electronic coupon are analyzed.Results show that the scheme can be completed within 12 s,which demonstrates that it is suitable in practice.