DESIGN AND IMPLEMENTATION OF PROTOCOL SCRUBBING: NETWORK SECURITY THROUGH TRANSPARENT FLOW MODIFICATION

ABSTRACT

This project describes the design and implementation of protocol scrubbers. Protocol scrubbers are transparent, interposed mechanisms for explicitly removing network scans and attacks at various protocol layers. The transport scrubber supports downstream passive network-based intrusion detection systems by converting ambiguous network flows into well-behaved flows that are unequivocally interpreted by all downstream endpoints. The fingerprint scrubber restricts an attacker's ability to determine the operating system of a protected host. As an example, this paper presents the implementation of a TCP scrubber that eliminates insertion and evasion attacks--attacks that use ambiguities to subvert detection--on passive network-based intrusion detection systems, while preserving high performance. The TCP scrubber is based on a novel, simplified state machine that performs in a fast and scalable manner. The fingerprint scrubber is built upon the TCP scrubber and removes additional ambiguities from flows that can reveal implementation-specific details about a host's operating system.

TABLE OF CONTENTS

TITLE PAGE

CERTIFICATION

DEDICATION

ACKNOWLEDGEMENT

ABSTRACT

TABLE OF CONTENTS

CHAPTER ONE

INTRODUCTION

1.1 STATEMENT OF PROBLEM

1.2 AIMS AND OBJECTIVE

1.3 PURPOSE OF STUDY

1.4 AIMS AND OBJECTIVES OF STUDY

1.5 SCOPE OF THE STUDY

1.6 LIMITATION OF THE STUDY

1.7 DEFINITION OF TERMS

CHAPTER TWO

2.0 LITERATURE REVIEW

CHAPTER THREE

METHODOLOGY FOR FACT FINDING AND DETAILED DISCUSSION OF THE SUBJECT MATTER

CHAPTER FOUR

THE FUTURE, IMPLICATIONS AND CHALLENGES OF THE SUBJECT MATTER FOR THE SOCIETY

CHAPTER FIVE

SUMMARY, RECOMMENDATION AND CONCLUSION

REFERENCES

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APA

LB3KrQR5c0006fde3c696.03592209, X. (2018). DESIGN AND IMPLEMENTATION OF PROTOCOL SCRUBBING: NETWORK SECURITY THROUGH TRANSPARENT FLOW MODIFICATION. Afribary. Retrieved from https://beta.afribary.com/works/design-and-implementation-of-protocol-scrubbing-network-security-through-transparent-flow-modification-133

MLA 8th

LB3KrQR5c0006fde3c696.03592209, XuZJAx35c0006fde31d75.71658929 "DESIGN AND IMPLEMENTATION OF PROTOCOL SCRUBBING: NETWORK SECURITY THROUGH TRANSPARENT FLOW MODIFICATION" Afribary. Afribary, 29 Jan. 2018, https://beta.afribary.com/works/design-and-implementation-of-protocol-scrubbing-network-security-through-transparent-flow-modification-133. Accessed 24 Apr. 2025.

MLA7

LB3KrQR5c0006fde3c696.03592209, XuZJAx35c0006fde31d75.71658929 . "DESIGN AND IMPLEMENTATION OF PROTOCOL SCRUBBING: NETWORK SECURITY THROUGH TRANSPARENT FLOW MODIFICATION". Afribary, Afribary, 29 Jan. 2018. Web. 24 Apr. 2025. < https://beta.afribary.com/works/design-and-implementation-of-protocol-scrubbing-network-security-through-transparent-flow-modification-133 >.

Chicago

LB3KrQR5c0006fde3c696.03592209, XuZJAx35c0006fde31d75.71658929 . "DESIGN AND IMPLEMENTATION OF PROTOCOL SCRUBBING: NETWORK SECURITY THROUGH TRANSPARENT FLOW MODIFICATION" Afribary (2018). Accessed April 24, 2025. https://beta.afribary.com/works/design-and-implementation-of-protocol-scrubbing-network-security-through-transparent-flow-modification-133

DESIGN AND IMPLEMENTATION OF PROTOCOL SCRUBBING: NETWORK SECURITY THROUGH TRANSPARENT FLOW MODIFICATION

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