提出一种新的电子现金方案，利用基于身份的加密技术，实现能保障收款方如期收款的延时付款功能。
This paper proposes a new e-cash scheme, which supports delayed payment. The new function is implemented by ID-based encryption technology.
设计了一种基于指纹加密技术的网络身份认证协议。
The contents of the paper are listed as follow:1. Design an authentication protocol based on fingerprint encryption.
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