基于TCM和CPK的电子文档保护系统
首发时间:2012-04-26
摘要:在电子政务中构建一个可信的电子文档保护系统是电子政务安全的关键之一。普通PC环境下的电子签名可能被恶意程序篡改,不能保证电子文档签名的真实性。本文基于TCM技术,并且结合CPK组合公钥技术来构建电子文档保护系统,设计了可信环境之下的签名和验签方案,并以OFFICE WORD办公软件为例,对该方案的实现过程进行了具体说明。
关键词: 可信密码模块(TCM) 组合公钥(CPK) 电子签名
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A Protection System of Electronic Document Security Based on TCM and CPK
Abstract:How to construct a trusted electronic document protection system in e-government is one of the most important problems. Electronic signatures may be tampered by malicious program in the ordinary PC environment, therefore the authenticity of the signature on the electronic document can't be ensured. In this paper, a protection system of electronic document was constructed based on trusted cryptography module (TCM) and combined with the combination of public key (CPK). A scheme of signing and verifying under trusted computing environment is designed. And as an example, the realization process of the scheme is elaborated for the OFFICE WORD.
Keywords: trusted cryptography module(TCM) combination of public key(CPK) electronic signature
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