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An Offline Check System with Reusable Refunds
Sangjin KIM Heekuck OH
IEICE TRANSACTIONS on Communications
Publication Date: 2003/03/01
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Fundamental Theories
electronic cash, offline check, reusable refunds,
Full Text: PDF(163KB)>>
We propose a new offline check system that allows refunds to be reused in payments. In this system, a shop issues a new check, called a refund check, for the change. The form of the refund check is much simpler than that of existing checks, and uses a more flexible and efficient denomination method. The new system also provides tracing mechanisms to counter criminal acts and considers the atomicity of transactions occurring in the system.