A trusted third party introduced in watermarking protocols would decrease the security and affect the implementation of the protocols. In this paper, a new watermarking protocol with an un-trusted third party （UTTP）...A trusted third party introduced in watermarking protocols would decrease the security and affect the implementation of the protocols. In this paper, a new watermarking protocol with an un-trusted third party （UTTP） was proposed. Based on the idea of all-or-nothing disclosure of secret （ANDOS）, all of the buyer, the seller and the third party didn＇t know the exact watermark, which was embedded in a digital content for tracing piracy. The proposed protocol provided mechanisms to trace piracy and protect customer＇s right. In addition, the problem that a seller colluded with UTTP to frame the buyer, namely, the conspiracy problem, could be avoided.展开更多
在计算机网络安全技术中,安全套接层协议SSL(Secure Sockets Layer)和安全电子交易协议SET(Secure E lectron ic Transac-tion)是电子商务与网上银行领域使用的知名协议。SSL协议的目标是提供两个应用间通信的保密性和可靠性;SET协议是...在计算机网络安全技术中,安全套接层协议SSL(Secure Sockets Layer)和安全电子交易协议SET(Secure E lectron ic Transac-tion)是电子商务与网上银行领域使用的知名协议。SSL协议的目标是提供两个应用间通信的保密性和可靠性;SET协议是针对信用卡支付的网上交易而设计的支付规范,主要是保证了通信信息的加密与安全。本文就安全套接层SSL协议和安全电子交易SET协议的功能、工作原理、各自存在的问题进行探讨,在此基础上提出对两种协议进行改进和融合的设想。展开更多
基金Supported by the National Natural Science Founda-tion of China (90304008) the Graduate Innovation Fund of XidianUniversity (05019 , 05017)the College and University Sbject ofDoctors Specific Sientific Research Foundation of China(20040701001)
文摘A trusted third party introduced in watermarking protocols would decrease the security and affect the implementation of the protocols. In this paper, a new watermarking protocol with an un-trusted third party （UTTP） was proposed. Based on the idea of all-or-nothing disclosure of secret （ANDOS）, all of the buyer, the seller and the third party didn＇t know the exact watermark, which was embedded in a digital content for tracing piracy. The proposed protocol provided mechanisms to trace piracy and protect customer＇s right. In addition, the problem that a seller colluded with UTTP to frame the buyer, namely, the conspiracy problem, could be avoided.
文摘在计算机网络安全技术中,安全套接层协议SSL(Secure Sockets Layer)和安全电子交易协议SET(Secure E lectron ic Transac-tion)是电子商务与网上银行领域使用的知名协议。SSL协议的目标是提供两个应用间通信的保密性和可靠性;SET协议是针对信用卡支付的网上交易而设计的支付规范,主要是保证了通信信息的加密与安全。本文就安全套接层SSL协议和安全电子交易SET协议的功能、工作原理、各自存在的问题进行探讨,在此基础上提出对两种协议进行改进和融合的设想。
