The Design And Implementation Of Anonymous Rewarding Scheme In Wireless Networks

In recent years, the rapid development of wireless network technology brings great convenience to people's life, and more and more people use mobile devices to handle daily matters, such as network collection, electronic voting, anonymous report, and so on. However, due to constraint on available power consumption, bandwidth and storage limitation of the mobile devices, most of these existing security anonymous schemes are not suitable for wireless communication. Therefore, it is necessary to research in designing security anonymous protocols for wireless networks.Based on the elliptic curve cryptosystem and secret sharing scheme, combing blind signature on the elliptic curve algorithm with it, an improved anonymous rewarding scheme for the wireless network environment is presented in this thesis. This scheme ensures that the reward claimant submits solutions to the problem timely and anonymously by using portable communication device and obtains the reward so that the privacy of the reward claimant can be protected effectively, and uses the secret sharing scheme so as to protect the fairness of scheme. Its security is based on the elliptic curve discrete logarithm problem and (t, m) secret sharing scheme. Compared with the existing rewarding scheme, the scheme has higher secrecy of data transmission, requires short secret key distance and smaller communication cost, etc.Finally, we analyzed in detail the security, anonymity and performance of the proposed scheme, then verified its feasibility under the MyEclipse platform. The experimental results show that the new protocol not only protects the anonymity of users but also improves the fairness of rewarding scheme.