Title : 
A New Anonymity Measure Based on Partial Entropy
         
        
            Author : 
Duan, Guihua ; Wang, Weiping ; Wang, Jianxin ; Yang, Luming
         
        
            Author_Institution : 
Sch. of Inf. Sci. & Eng., Central South Univ., Changsha
         
        
        
        
        
            Abstract : 
With the development of Internet applications, a number of anonymous communication systems have been realized to protect the identity of communication participants. Therefore, it is essential to give a theoretically based and practically usable objective numerical measure for the provided level of anonymity. In this paper some typical anonymity measures are analyzed and limitations of these measures was highlighted. Then a new anonymity measure based on partial entropy is proposed, in which the anonymity is measured by using the entropy of the probability distribution of some distinct subjects in anonymity set. The results of analysis and calculation show that the new measure is preferable for anonymity evaluation.
         
        
            Keywords : 
Internet; entropy; statistical distributions; telecommunication security; Internet applications; anonymity measurement; anonymous communication systems; network security; partial entropy; probability distribution; Communication systems; Communications Society; Entropy; IP networks; Information science; Information security; Internet; Particle measurements; Probability distribution; Protection;
         
        
        
        
            Conference_Titel : 
Communications, 2008. ICC '08. IEEE International Conference on
         
        
            Conference_Location : 
Beijing
         
        
            Print_ISBN : 
978-1-4244-2075-9
         
        
            Electronic_ISBN : 
978-1-4244-2075-9
         
        
        
            DOI : 
10.1109/ICC.2008.287