摘要
分析目前AutoCAD图形文件的格式,并介绍了基于Logistic和Tent混沌映射的密匙生成原理,利用这个原理,通过VBA在AutoCAD图形中进行二次开发,实现了AutoCAD中的dwg与dxf两种文件格式的加密解密,实例表明,加密解密有效可靠。
The paper analyzes the fact of current AutoCAD figure files＇ format, and introduces a principle of key - creating which based on Logistic and Tent mapping, Uses this principle, realizes the second developments and the encryption and decryption of dwg and dxf format in AutoCAD figure files by VBA.
出处
《机械设计与制造》
北大核心
2006年第9期44-46,共3页
Machinery Design & Manufacture
