摘要： 针对流媒体数据在组播传输过程中的源认证问题，提出基于树型散列模型的解决方案。树型散列源认证是一种分摊数字签名开销的技术，将其应用到流媒体组播传输中，可以有效地提高认证的效率。给出一个包括数据发送方和数据接收方的完整实现流程以及可能出现情况的处理方法，并对.Net 2.0平台涉及到的关键技术做了介绍。

关键词: 组播, 源认证, 树型散列, 数字签名

Abstract: For streaming multicast data transmission in the process of source authentication, this paper presents a solution based on hash tree model. Hash tree is a source certification cost-sharing digital signature technology, and its application to the multicast transmission of streaming media is an effective way to improve the efficiency of the certification. Based on theoretical study and a large number of experiments, it gives a full realization of the process, including sending and receiving data, as well as possible ways to deal with the situation, and does introduction on Net 2.0 platform involves the introduction of key technologies.

Key words: multicast, source authentication, tree hash, digital signature

中图分类号: 

• TP393.09