DESIGN AND IMPLEMENTATION OF OSBE TO HANDLE CYCLIC POLICY INTERDEPENDENCY (CASE STUDY OF DHL ENUGU)

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ABSTRACT

Exchange of digitally signed certificates is often used to establish mutual trust between strangers that wish to share resources or to conduct business transactions. Automated Trust Negotiation (ATN) is an approach to regulate the flow of sensitive information during such an exchange. Previous work on ATN is based on access control techniques, and cannot handle cyclic policy interdependency satisfactorily. We show that the problem can be modelled as a 2-party secure function evaluation (SFE) problem, and propose a scheme called oblivious signature-based envelope (OSBE) for efficiently solving the SFE problem. We develop a provably secure and efficient OSBE protocol for certificates signed using RSA signatures. We also build provably secure and efficient one-round OSBE for Rabin and BLS signatures from recent constructions for identity-based encryption. We also discuss other applications of OSBE..

TABLE OF CONTENTS

TITLE PAGE

CERTIFICATION

APPROVAL

DEDICATION

ACKNOWLEDGEMENT

ABSTRACT

ORGANIZATION OF WORK

TABLE OF CONTENTS

CHAPTER ONE

1.0 INTRODUCTION

1.1 STATEMENT OF THE PROBLEM

1.2 AIMS AND OBJECTIVES

1.3 PURPOSE OF THE STUDY

1.4 SIGNIFICANCE

1.5 SCOPE OF STUDY

1.6 LIMITATIONS OF STUDY

1.7 DEFINITION OF TERMS

CHAPTER TWO

2.0 REVIEW OF RELEVANT LITERATURE

CHAPTER THREE

3.0 DESCRIPTION AND ANALYSIS OF EXISTING SYSTEM

3.1 METHODOLOGY

3.2 GENERAL OVERVIEW OF SYSTEM

3.3 ORGANOGRAM

3.4 INFORMATION FLOW DIAGRAM

3.5 OUTPUT ANALYSIS

3.6 INPUT ANALYSIS

3.7 PROCESS ANALYSIS

3.8 PROBLEMS OF THE EXISTING SYSTEM

3.9 JUSTIFICATION OF THE NEW SYSTEM

CHAPTER FOUR

4.0 DESIGN AND IMPLEMENTATION

4.1 DESIGN STANDARD

4.2 OUTPUT SPECIFICATION AND DESIGN

4.3 INPUT SPECIFICATION AND DESIGN

4.4 FILE DESIGN

4.5 PROCEDURE CHART

4.6 SYSTEM FLOW CHART

4.7 IMPLEMENTATION

4.7.1 PROGRAM FLOW CHART

4.7.2 PSEUDO CODE

4.8 CODING

4.9 SYSTEM REQUIREMENTS

- SOFTWARE

- HARDWARE

- OPERATIONAL

- PERSONNEL

- ENVIRONMENT

4.10 TESTING

4.11 CUTOVER PROCESS

4.12 DOCUMENTATION

CHAPTER FIVE

5.0 SUMMARY, RECOMMENDATION AND CONCLUSION

5.1 SUMMARY

5.2 RECOMMENDATION

5.3 CONCLUSION

REFERENCES

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DESIGN AND IMPLEMENTATION OF OSBE TO HANDLE CYCLIC POLICY INTERDEPENDENCY (CASE STUDY OF DHL ENUGU)

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