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Security in Mobile Computing课件
Security of Mobile Computing;Summary of Major Work;Mobile Computing ─ Access information anytime anywhere;Mobile Ad Hoc Network;Potential Problem;Two Types of Solutions;Sprite: System Architecture;Big Picture: Saving Receipts;Big Picture: Getting Payment;Only Source Pays;Pays for Successful Forwards;Major Challenges: Cheating Prevention;Payment (version 1): Motivate nodes to forward;Payment (version 2):Motivate nodes to submit receipts;Payment (final version): Prevent receipt-transfer attack;Summary of Payment;Formal Analysis (1);Formal Analysis (2);Result of formal analysis;Extension: Route Discovery and Multicast;Evaluation: Overhead;Effects of Battery on Performance;Dynamics of Message Success Rate;Summary of Our Results on Mobile Ad Hoc Networks;Secure Mobile Agent Computation;Problem Formulation;Problem Formulation (Cont’d);Security Requirements;Solution Framework [ACCK01];Illustration of Solution Framework;Need for a Crypto Primitive;Verifiable Distributed Oblivious Transfer (VDOT);VDOT (Cont’d) ;Analysis of VDOT Security Requirements;Design of VDOT;Consistency Verification on Encrypted Shares;Consistency Verification on Encrypted Shares (Cont’d);Illustration of Consistency Verification;Achieving Consistency Verification on Encrypted Shares;Achieving Consistency Verification on Encrypted Shares (Cont’d);Analysis of Need;Identification of Cheater;Identification of Cheater (Cont’d);Performance: Overhead of Garbled Circuits;Future (On-going) Work on Mobile Ad Hoc Networks;Future Work on Mobile Agents;THANK YOU
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