Grid Services Trusted Authentication Algorithm Based on Image Trusted Root in Scale Space  

作　　者：LIU Lizhao LIU Jian ZHU Shunzhi LI Lin SUN Zhonghai 

机构地区：[1]Department of Computer Science and Technology, XiamenUniversity of Technology, Xiamen 361005, Fujian, China [2]College of Economics and Managament, Nanjing Universityof Science and Technology, Nanjing 210094, Jiangsu, China [3]Department of Information Center, Xiamen University ofTechnology, Xiamen 361005, Fujian, China [4]Department of Information Center, Xiamen Health Bureau,Xiamen 361005, Fujian, China

出　　处：《Wuhan University Journal of Natural Sciences》2012年第6期521-530,共10页武汉大学学报（自然科学英文版）

基　　金：Foundation item: Supported by the National Natural Science Foundation (61070151,60903203,61103246);the Natural Science Foundation of Fujian Province (2010J01353);the Xiamen University of Technology Scientific Research Foundation (YKJ11024R);Xiamen Scientific Research Foundation (3502Z20123037)

摘　　要：A new authentication algorithm for grid identity trusted computing unlimited by hardware is presented;the trusted root is made as an image data.The grid entity is trusted in the soft platform when its feature of image root is entirely matched with that from the other entities＇ feature database in a scale space process.To recognize and detect the stable image root feature,the non-homogeneous linear expandable scale space is proposed.Focusing on relations between the scale parameter of the inhomogeneous Gaussian function terms and the space evolution of thermal diffusion homogeneous equations,three space evolution operators are constructed to exact and mark the feature from image root.Analysis and verification are carried on the new scale space,operators and the core of making decisions for grid entities certifications.A new authentication algorithm for grid identity trusted computing unlimited by hardware is presented;the trusted root is made as an image data.The grid entity is trusted in the soft platform when its feature of image root is entirely matched with that from the other entities＇ feature database in a scale space process.To recognize and detect the stable image root feature,the non-homogeneous linear expandable scale space is proposed.Focusing on relations between the scale parameter of the inhomogeneous Gaussian function terms and the space evolution of thermal diffusion homogeneous equations,three space evolution operators are constructed to exact and mark the feature from image root.Analysis and verification are carried on the new scale space,operators and the core of making decisions for grid entities certifications.

关 键 词：grid computing trusted computing services trust AUTHENTICATION scale space diffusion equation evolution operator feature detection 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]