Previously proposed anonymous electronic payment systems have the drawback that the bank has to maintain large databases, which is a handicap for the realization of such systems. In this paper, we present a practical anonymous payment system that signiicantly reduces the size of such databases. It uses the concept of anonymous accounts and ooers anonymity as an add-on feature to existing EFTPOS...

In this paper, we propose a micro-payment system that is able to apply to several vendors using only one hash chain. Explicitly, this scheme can be considered as an improvement and extension of PayWord [8] suggested by Rivest and Shamir in 1996. We focus on the scheme that guarantees atomicity and non-repudiation among requirements for payment systems. Atomicity and non-repudiation play an impo...

In the age of global Internet, there were changes in life human community, its needs, and requirements for provision payment services, that, turn, affected development sphere. Taking into account transformations field systems that occur as a result continuous digital economy globalization, legislative regulatory domestic international field, research proposals regarding modern understanding con...

Because many current payment systems are poorly implemented, or of incompetence, private data of consumers such as payment details, addresses and their purchase history can be compromised. Furthermore, current payment systems do not offer any non-repudiable verification to a completed transaction, which poses risks to all the parties of the transaction – the consumer, the merchant and the finan...

OBJECTIVES The Diagnosis Related Group (DRG) payment system, which has been implemented in Korea since 1997, is based on voluntary participation. Hence, the positive impact of this system depends on the participation of physicians. This study examined the factors determining participation of Korean obstetrics & gynecology (OBGYN) clinics in the DRG-based payment system. METHODS The demographi...