摘要
提出一种具有可恢复性的离线电子支付方案 .用户可以借助可信第三方 (简称 TTP)恢复因计算机崩溃或电子钱包丢失等原因而丢失的电子现金 ,本方案还能够有效防止重复花费、窃听。
This paper proposes a recoverable scheme for off-line electronic payment. With this new method, each consumer can recover the lost money with the help of Trusted Third Party (TTP) even if the computer has crashed and all the files are removed accidentally, or his e-cash wallet has been lost. In comparison to other schemes, the new method can prevent from double spending, eavesdropping, tampering and 'perfect crime' effectively as well.
出处
《小型微型计算机系统》
CSCD
北大核心
2004年第12期2286-2288,共3页
Journal of Chinese Computer Systems
基金
国家自然科学基金项目 ( 90 10 40 3 3 )资助
关键词
信息安全
电子支付
可恢复性
重复花费
information security
electronic payment
recoverability
double spending
