可三方使用的电子现金

Spendable electronic cash by three parties

提出了可三方使用的电子现金方案,使用该方案,用户U在某地提取电子现金时,A lice和Bob也可以在异地通过开放网路下载并且使用这些电子现金,用户U也可使用。

This paper proposed a scheme that the electronic cash could be consumed by three parties. Using the mechanism, U could draw electronic cash at some place, while Alice and Bob could download these electronic cash and consume them separately at different places, and U also could use them.