Abstract: By analyzing RI codes generation principle and characteristics from OOXML file, this paper concludes the method of identifing word document replication effectively, and by using the RI code value that generated from word document, this paper develops an effective application program to calculate, analysis, and automatically identify evidence of replication in word document, so as to achieve the goal of forensic identification.

Key words: Word document, OOXML file, document replication, RI code, forensic identification

摘要： 通过对OOXML文件的RI码生成原理和特性进行分析研究，总结得出有效鉴别Word复制文档的方法，并利用Word文档生成的RI码值，开发出有效的应用程序进行计算分析，自动实现对Word复制文档的鉴别取证，达到司法鉴定的目标.

关键词: Word文档, OOXML文件, 复制文档, RI码, 司法鉴定