Inhalt

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   Acknowledgments
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   Statement
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   Abstract
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  1 Introduction
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   1.1 Preface
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   1.2 Contributions
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   1.3 Thesis Overview
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  2 Backgrounds and Related Works
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   2.1 The System of Exchange
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   2.1.1 Structures of Exchange
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   2.1.2 Money
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   2.1.3 Some Important Remarks
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   2.2 Transactions in Distributed Systems
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   2.2.1 Authentication
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   2.2.2 Authorization
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   2.2.3 Accounting and Accountability
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   2.2.4 The Roles of TTP in Accomplishing Transactions
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  2.3 Transactions without Trusted Third Party
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   2.3.1 Ad-Hoc Protocols
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   2.3.2 Completing Transactions with Collaboration
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  2.4 Trust in Computer Mediated Transactions
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   2.4.1 The Notion of Trust in Computer Security
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   2.4.2 Interpersonal Trust
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   2.4.3 Interpersonal Trust in Computer Mediated Transactions
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   2.4.4 Computational Trust
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   2.5 Summary
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  3 Transaction Basics
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   3.1 Reformulating the Problem
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   3.2 Establishing the Accounts with Institutional Fact
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  3.3 Transaction Concept and Its Logic
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   3.3.1 The Building Blocks
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   3.3.2 Components of Transactions
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   3.3.3 Transaction Schemes
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   3.3.4 Remarks
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   3.4 Transaction Algorithm
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   3.4.1 Agents and System Variables
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   3.4.2 Communication Channel
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   3.4.3 Specifying Agent Actions in Completing Transaction
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   3.4.4 Steps to Complete the Transaction
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   3.4.5 Discussion
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   3.5 Summary
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  4 Collective Authorization and Social Control
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  4.1 Backgrounds
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   4.1.1 Importance of Trust
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   4.1.2 Social Control and Reputation
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   4.1.3 Design Goal
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  4.2 Reputation System
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   4.2.1 Notions of Trust and Reputation
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   4.2.2 How Reputation Changes
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   4.2.3 Elements of Reputation System
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  4.3 The Design of Collective Authorization
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   4.3.1 Basic System Setup
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   4.3.2 Community Decision Trust
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   4.3.3 Reputation Propagation and Concluding Reliability Trust
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  4.4 Collective Authorization Algorithm in TLA+
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   4.4.1 Re-Introduction
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   4.4.2 Collective Authorization
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   4.4.3 Rating Propagation
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   4.4.4 Transaction Summary
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   4.5 Summary
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  5 Simulation on Collective Authorization
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  5.1 Underlying Concept of Simulation on Social Control
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   5.1.1 Background and Objective
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   5.1.2 Natural Selection
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   5.1.3 Simulation Parameters
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   5.2 Simulator Program
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   5.2.1 Simulator Parameters
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   5.2.2 Display Graphs
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  5.3 Running Simulation
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   5.3.1 Parameter Setting
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   5.3.2 Observed Phenomenon
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  5.4 Experiments
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   5.4.1 Parameters Sweeping
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   5.4.2 Observation
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   5.4.3 Presenting Results
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   5.5 Discussion
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   5.6 Summary
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  6 The Design of the Protocol
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  6.1 The Scenario, Issues, and Intended Solution
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   6.1.1 The Scenario
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   6.1.2 Issues and Intended Solutions
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  6.2 Bootstrapping, the Keys, and Memberships
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   6.2.1 Protocol Basics
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   6.2.2 The Using of Distributed Cryptography
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   6.2.3 Anatomy of Institutional-Money and Institutional-Memberships
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   6.2.4 Bootstrapping
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   6.2.5 Enrolling New Member
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   6.2.6 The Expelling of a Member
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   6.3 Transaction Protocol
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   6.3.1 Anatomy of Transaction Proposal
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   6.3.2 The Protocol
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   6.3.3 Multiple Traders Transaction
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   6.4 Summary
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  7 Application of the Framework
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  7.1 Introduction
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   7.1.1 Objective
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   7.1.2 Issues and Requirements
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  7.2 The Architecture
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   7.2.1 The Overlay Trading Network
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   7.2.2 Trading Program
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   7.2.3 Integration
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  7.3 The Work-flow
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   7.3.1 General Work-flow
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   7.3.2 Address Management
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   7.3.3 Delivery Protocol
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  7.4 Discussion
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   7.4.1 Slight Review
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   7.4.2 New Possibilities of Trading Scheme
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   7.5 Summary
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  8 Conclusion and Future Works
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   8.1 General Conclusion
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   8.2 Summary of Contributions
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   8.3 Future Works
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   Bibliography
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   A Transaction Algorithm in TLA+
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   B Source of Simulation Program