It can provide many network applications with all kinds of security service, such as authentication, confidentiality, information integrity and non-repudiation of transaction.

它可以为各种网络应用提供身份认证、信息的机密性和完整性以及交易的不可否认性等安全服务。

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The digital signatures have many applications in a lot of field for it cannot be substituted by other techniques in information security, including authentication, data integrity, and non-repudiation.

数字签名技术在身份认证、数据完整性等方面具有其它技术所无法替代的作用，在信息安全领域得到广泛的应用。

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The security of the information system generally included Data Integrity , Data Confidentiality , Authentication , Access Control , Non-repudiation and so on.

对于信息系统的安全性一般包括：数据完整性、数据保密性、身份确认和认证、访问控制、不可否认性等几个方面。

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