104 Icdcit05

A Game Based Model of Security for Key Predistribution Schemes in Wireless Sensor Network Debapriyay Mukhopadhyay and Suman Roy

OUTLINE ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Motivation ,[object Object],[object Object],[object Object],[object Object]

Motivation ,[object Object],[object Object],[object Object],[object Object],[object Object]

Probabilistic Turn Based 2½ Player Game ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Plays and Strategies ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Objectives / Winning Condition (WC) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Quantitative Analysis ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Message Authentication Code (MAC) ,[object Object],[object Object],[object Object],[object Object]

Security Framework for Key Predistribution ,[object Object],[object Object],[object Object],[object Object]

Security Framework for Key Predistribution (Contd..) ,[object Object],[object Object],[object Object],[object Object],[object Object]

Blom’s Scheme ,[object Object],[object Object],[object Object],[object Object],[object Object]

Random Key Predistribution Based on Blom’s Scheme ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Security Analysis ,[object Object],[object Object],[object Object],[object Object]

Security Analysis (Contd..) ,[object Object],[object Object],[object Object],[object Object]

Modeling Key Predistribution ,[object Object],[object Object],[object Object],[object Object],[object Object]

Game Graph s 0 s 3 s 1 s 2 ĥ(m, j, k) tag = h k jk (m) (m*, tag*) Rejects with prob. P secure ĥ(m, j, k) tag = h k jk (m) Accepts with prob. 1 - P secure S 1 ={s 0 , s 1 }; S 2 ={s 2 }; S O = {s 3 } δ ( s 3 ) = μ ( ε D(S)) s.t. μ (s 0 )= P secure & μ (s 1 )=1 - P secure

Immediate Analysis ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Analysis (Contd ..) ,[object Object],[object Object],[object Object],[object Object],[object Object]

Analysis (Contd..) ,[object Object],[object Object],[object Object],[object Object],[object Object]

Analysis (Contd ..) ,[object Object],[object Object],[object Object],[object Object]

Conclusion ,[object Object],[object Object],[object Object],[object Object]

104 Icdcit05

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104 Icdcit05