A Fair Mobile Payment Protocol

摘要

Based on concurrent signature algorithm, a fair mobile payment protocol is proposed in the paper. The protocol possesses the characters of fairness and non-repudiation. It can protect both of the consumer and merchant's profits. As the electronic check is transferred by publishing a secret key, it guarantees that each participant could get the expected item at the same time. Compared to the traditional process, there are less transaction steps in our scheme. Moreover it can avoid network congestion caused by a traditional TTP and decrease the transaction center's processing pressure much. It could be used for physical goods transaction.