Abstract
Mobile, divisible, and safe e-cash system adapts on mobile terminals for e-payment which can circulate in multiple banks. The usage of the divisible e-cash does not need pass bank, which the bank has not the bottleneck of e-business. The author’s thesis discusses on the withdrawal protocol, payment protocol, transferable protocol, deposit protocol, and update of e-cash, based on elliptic curve cryptography (ECC).The system is simple, efficient, secure, and fit for the mobile e-payment terminals in which storage, power, operand capacity, and network bandwidth supply are extraordinarily restricted. The system can protect from double spending, non-frameability, eavesdropping, tampering, and “perfect crime” effectively too. It can save from mis-identity attacks, two-layer anonymity attacks, and linking attacks.
Highlights
With the development of science and technology and the progress of society, e-cash began to enter people’s lives and gradually changed people’s consumption concept and mode
(1) e user withdraws I yuan from the bankm
He takes a∈RZn and computes δ H(a + SKU). He enters δ in the database, encrypts IDnU, δ, and,I by the symmetric key, and sends them to the bankm
Summary
With the development of science and technology and the progress of society, e-cash began to enter people’s lives and gradually changed people’s consumption concept and mode. E usage of every e-cash system must pass the bank [1]; the bank has turned into the bottleneck of the payment. E e-cash [2] only circulates in a single bank, which cannot meet the needs of reality. E e-cash in this study is divisible, and the usage of the divisible e-cash system need not pass bank, which the bank has not the bottleneck of e-business. E research effectively improves the efficiency and security of mobile e-cash system, which provides the theoretical basis and technical support for an electronic transaction system nowadays. E e-cash in this study can circulate in all the banks, which can meet the needs of reality. E e-cash in this study can circulate in user’s e-business, which circulates any time offline between the users before getting saved in the bank. When the usage period ends, the bank will delete the e-cash. us, the storage space of the bank is saved
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