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中文摘要：
在JXTA协议基础上,针对基于松散一致结构化的点对点电子商务网络中,缺少可信中心和可能存在恶意节点的情况下,考虑对节点进行可信性分析是建立授权等服务的重要环节,提出在系统中应用RSA和DSA门限签名算法,以适应网络动态性强等特点的节点认证和访问控制方案,从而能够抵抗合谋等攻击,理论分析证明增强了系统安全性。模拟实验表明,门限方案提高了系统对节点识别的效率和认证的准确度,同时比较了门限RSA方案和门限DSA方案的运行效率。
英文摘要：
Based on JXTA,P2P E-commence situation grounding upon loosely consistent DHT lacks trusted center and may have a lot of malicious peers,so it is necessary for the system to introduce the credible analysis for new peer.An authentication and access control scheme applying RSA and DSA threshold algorithm is proposed.This scheme is adaptable to dynamic network,and can resist many kinds of attacks from malicious peers such as the conspiracy attack.It is theoretically proved that the security of system is enhanced.Simulation results indicate that the efficiency of peer recognition and the accuracy of authentication are increased.Simultaneously,threshold RSA is compared with threshold DSA on efficiency by experiment.
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