CAJ | 학술논문

针对ALM(application layer multicast)安全性方面存在的问题,设计了一种新的ALM协议.节点加入多播组时,协议对节点的信任度进行认证检测.在交互过程中动态计算节点信任度,以便准确识别覆盖网中的恶意节点.同时,通过标签机制,有效防止了节点对信任信息的恶意篡改.仿真实验结果表明,该协议能有效区分恶意节点并对其进行控制,对多播安全性方面存在的问题有较大改进.
침대ALM(application layer multicast)안전성방면존재적문제,설계료일충신적ALM협의.절점가입다파조시,협의대절점적신임도진행인증검측.재교호과정중동태계산절점신임도,이편준학식별복개망중적악의절점.동시,통과표첨궤제,유효방지료절점대신임신식적악의찬개.방진실험결과표명,해협의능유효구분악의절점병대기진행공제,대다파안전성방면존재적문제유교대개진.
A new application layer multicast protocol is proposed based on trust model. The protocol inspected hosts' reliability to verify authentication during the joining process. To the hosts which in an interactive state, the protocol dynamically computed their reliability, in order to identify the malicious nodes accurately. The protocol also implemented tag mechanism to prevent malicious distorted infor-mation. The simulation result shows that the protocol can availably identify the malicious nodes and efficiently improve the security in ALM transmission.