The main results of this paper are following : 1 ) theoretical knowledge and technologies of xml and web service technologies based on xml are depicted perspicuously . the relation and functional implementation among the xml security technologies are discussed 课题围绕xml安全这一目标展开，主要成果如下： 1 )对xml理论知识、相关技术以及基于xml的web服务技术做了明确的表述，讨论了xml安全中各种技术之间的相互关系与功能实现。
