| 摘要: |
| 在(部分)密钥托管中,监听阶段是一个关键阶段.因此,如何安全而有效地实施监听是一个重 要的问题.按照以前的监听方案,用户被监听后，他的整个私钥就暴露了.这对于诚实守法的 用户来说是不公平的.该文提出部分密钥托管中的监听方案.在这个方案下,即使用户被监听 多次,其托管密钥也不会受到危害. |
| 关键词: 监听方案，托管代理，监听机构，密钥，安全性. |
| DOI： |
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| Partial Key Escrow Monitoring Scheme |
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JIANG Shao-quan,ZHANG Yu-feng
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| Abstract: |
| During (partial) key escrow, monitoring is a vital phase. So how to monitor a us er safely and efficiently is a very important problem. According to the known mo nitoring schemes, after a user is monitored, his secret key is known. It is unfa ir to an honest user. In this paper, the authors propose a monitoring scheme of a typical partial key escrow scheme. In this scheme, the escrowed key of a user is not compromised even if the user has been monitored for many times. |
| Key words: Monitor scheme, trustee, law enforce agency, secret key, security. |
