Efficient Privacy-Enhanced Scheme for Online Transportation Network Services
CAO Chenglong;ZHU Xiaoling;Department of Xueyan Trade,Anhui Finance and Trade Vocational College;School of Computer and Information,Hefei University of Technology;
There have existed a great number of security and privacy threats in online transportation network service.Focusing on the threats,aprivacy protection scheme was designed,where payment pattern was changed from third-party payment to e-cash payment.A partially blind signature protocol was proposed to enhance passenger privacy and ensure that e-cash was unforgeable.In order to improve the practicability of the scheme,a lightweight trusted chain was constructed,in which e-cash was divisible and its share was non-reusable.The analysis shows that the scheme has small communication cost,and meanwhile it provides enhanced privacy protection:apassenger is anonymous,and his identity is not relevant to his position even in the presence of online transportation network platform and e-cash authority.
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