在讨论这个问题之前，我们先说一说抗抵赖。
提出了简单的公平抗抵赖协议(SFNP)。
Simple and Fair Non-repudiation Protocol (SFNP) is proposed.
抗抵赖协议借助密码学算法以实现抗抵赖服务。
The non-repudiation protocol based on cryptology can offer non-repudiation service.
电子商务中为确保双方的行为，抗抵赖性具有非常重要的意义。
Non-repudiation is important in assuring behaviors of both sides in e-business.
安全电话系统提供了完整的安全服务：保密性、身份认证、完整性、抗抵赖性等。
Secure Telephone System provides integrate security services: confidentiality, authority certification, integrality and anti-denying.
抗抵赖性提供了发生过某个动作的证据，并且可以跟踪到特定的实体(用户或者公司)。
Nonrepudiation provides evidence that a particular action occurred and can be traced to a specific entity (user or business).
文章按照UN/EDIFACT标准探讨了采用安全段组结构和数字签名技术实现报文的抗抵赖性的方法。
This paper probes into the secure message structure in batch UN/ EDIFACT criterion, and presents a security instance message which conforms to the criterion by using the digital signature.
该方案增强了现有OTA下载系统的安全性，有效保障了OTA无线下载服务的传输安全性、数据完整性和系统的安全，改进了系统的身份认证和抗抵赖性等安全性能。
The improved OTA security system ensures transmission security, data integrity, management security effectively, and meets the need of the security properties of the authentication and anti-denial.
该方案增强了现有OTA下载系统的安全性，有效保障了OTA无线下载服务的传输安全性、数据完整性和系统的安全，改进了系统的身份认证和抗抵赖性等安全性能。
The improved OTA security system ensures transmission security, data integrity, management security effectively, and meets the need of the security properties of the authentication and anti-denial.
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