E-Cash Technology
电子现金技术

This paper firstly introduces background,conception,research idea,present situation and progress at home and abroad of e-cash technology. Then we introduce models,categories,key technologies,open problems and remarks of e-cash system. Finally, we look into the future of e-cash technology. We want to make most readers learn about progress and significance of e-cash technology,to encourage readers to participant the research of e-cash technology, and to accelerate development of e-commerce in our country.