Atomicity and anonymity are desirable properties for reliable and security e-Cash transaction and the guarantee of the participants’ interests. But there are conflicts between these two properties. In this paper, an ...Atomicity and anonymity are desirable properties for reliable and security e-Cash transaction and the guarantee of the participants’ interests. But there are conflicts between these two properties. In this paper, an atomic and anonymous e-Cash transaction protocol with off-line TTP (Trust Third Party) based on the extended CEMBS is presented. The novel protocol is analyzed for its atomicity and anonymity. The results of the analysis show that it not only provides atomicity and anonymity under unreliable communication and dishonest participants, but also features high efficiency and practicability. The new protocol also avoids transaction from an ambiguous state. Furthermore, it will be referenced often for the application of the atomic e-Cash transaction protocol.展开更多
Atomicity is necessary for reliable and secure electronic commerce transaction and to guarantee the participants' interests. An atomic and efficient e-cash (electronic cash) transaction protocol based on the class...Atomicity is necessary for reliable and secure electronic commerce transaction and to guarantee the participants' interests. An atomic and efficient e-cash (electronic cash) transaction protocol based on the classical e-cash scheme is presented. The delivery of digital goods is incorporated into the process of payment in the protocol. Apart from ensuring all three levels of atomicity, the novel protocol features high efficiency and practicability with unfavorable strong assumption removed. Furthermore, the proposed protocol provides non-repudiation proofs for any future disputes. At last, analysis of the atomicity and efficiency is illustrated.展开更多
文摘Atomicity and anonymity are desirable properties for reliable and security e-Cash transaction and the guarantee of the participants’ interests. But there are conflicts between these two properties. In this paper, an atomic and anonymous e-Cash transaction protocol with off-line TTP (Trust Third Party) based on the extended CEMBS is presented. The novel protocol is analyzed for its atomicity and anonymity. The results of the analysis show that it not only provides atomicity and anonymity under unreliable communication and dishonest participants, but also features high efficiency and practicability. The new protocol also avoids transaction from an ambiguous state. Furthermore, it will be referenced often for the application of the atomic e-Cash transaction protocol.
基金This project was supported by the National Natural Science Foundation of China (70031020).
文摘Atomicity is necessary for reliable and secure electronic commerce transaction and to guarantee the participants' interests. An atomic and efficient e-cash (electronic cash) transaction protocol based on the classical e-cash scheme is presented. The delivery of digital goods is incorporated into the process of payment in the protocol. Apart from ensuring all three levels of atomicity, the novel protocol features high efficiency and practicability with unfavorable strong assumption removed. Furthermore, the proposed protocol provides non-repudiation proofs for any future disputes. At last, analysis of the atomicity and efficiency is illustrated.
