| 摘要: |
| 基于RSA的基本思想，本文设计了一种动态口令验证方案，解决了Lamport方案中的问题．由于不要求每个用户都拥有公钥或数字签名，该方案还具有较低的系统复杂性．由基本方案进行扩展还可得到一基于身份的动态口令验证方法． |
| 关键词: 口令验证，身份验证，单向函数，加密，公开密钥． |
| DOI： |
| 分类号: |
| 基金项目:本文研究得到清华大学自然科学基金资助. |
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| IDENTITY—BASED DYNAMIC PASSWORD AUTHENTICATION |
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Dai Yiqi,Zhang Li
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| Abstract: |
| Based on the fundamental idea of RSA，the authors designed a dynamic pass-word authentication scheme，solving the problem in the Lamport scheme．In this scheme，there is no requirement that every user should hold a public key cryptosystem or a signa-ture system，thus its system complexity is rather low．A slight modification on the funda-mental scheme can also lead to an identity—based dynamic password authentication scheme． |
| Key words: Password authentication,identity authentication,one_way function,encryp-tion,public_key． |
