Table Of ContentInformation Technology / Securing & Auditing E IIrriiss BBiioommeettrriicc
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In the last few years, biometric techniques have proven their ability to provide h
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secure access to shared resources in various domains. Furthermore, software u
r MMooddeell ffoorr SSeeccuurreedd
agents and multi-agent systems (MAS) have shown their efficiency in resolving y
critical network problems.
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Iris Biometric Model for Secured Network Access proposes a new model, r NNeettwwoorrkk AAcccceessss
i
the IrisCryptoAgentSystem (ICAS), which is based on a biometric method for s
authentication using the iris of the eyes and an asymmetric cryptography method B
using “Rivest-Shamir-Adleman” (RSA) in an agent-based architecture. It focuses i
o
on the development of new methods in biometric authentication in order to provide m
greater efficiency in the ICAS model. It also covers the pretopological aspects in
e
the development of the indexed hierarchy to classify DRVA iris templates. t
r
i
c
The book introduces biometric systems, cryptography, and multi-agent systems
M
(MAS) and explains how they can be used to solve security problems in complex
systems. Examining the growing interest to exploit MAS across a range of o
fields through the integration of various features of agents, it also explains how d
e
the intersection of biometric systems, cryptography, and MAS can apply to iris
l
recognition for secure network access.
f
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r
The book presents the various conventional methods for the localization of external
S
and internal edges of the iris of the eye based on five simulations and details the
e
effectiveness of each. It also improves upon existing methods for the localization c
u
of the external and internal edges of the iris and for removing the intrusive effects
r
of the eyelids. e
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K14421 c
e Franjieh El Khoury
ISBN: 978-1-4665-0213-0 s
90000 s
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K14421 cvr mech.indd 1 4/12/13 8:51 AM
Iris Biometric
Model for Secured
Network Access
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Iris Biometric
Model for Secured
Network Access
Franjieh El Khoury
CRC Press
Taylor & Francis Group
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Boca Raton, FL 33487-2742
© 2013 by Taylor & Francis Group, LLC
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Version Date: 20130322
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Dedication
To my father,
I dedicate this work.
Contest all limits . . .
Contents
Acknowledgments xiii
IntroductIon xv
Part 1 State of the art
ChaPter 1 SeCurity of ComPuter NetworkS 3
1.1 General Overview on Different Risks for and Means
of Computer Defense 3
1.2 Level of Security and Risks 3
1.2.1 Risks at the Physical Level 4
1.2.2 Risks at the Level of Access to Data and
Their Transmission across the Network 4
1.2.3 Risks at the Network Level 5
1.3 Means of Defense 5
1.3.1 Means of Defense at the Physical Level 6
1.3.2 Means of Defense at the Level of Data and
Their Transmission across the Network 8
1.3.3 Means of Defense at the Network Level 10
1.4 Conclusion 12
ChaPter 2 BiometriC SyStemS 13
2.1 Introduction 13
2.2 General Definition of a Biometric System 14
2.3 Different Biometric Technologies 15
2.3.1 Morphological Biometrics 16
2.3.2 Behavioral Biometrics 22
2.3.3 Biological Biometrics 25
vii
viii Contents
2.4 Comparison of the Different Biometric Techniques 26
2.5 Algorithms for Iris Recognition 28
2.5.1 Acquisition and Manipulation of the Image 28
2.5.2 Localization of the External and Internal
Edges of the Iris 29
2.5.3 Normalization 30
2.5.4 Extraction of Biometric Characteristics
of the Iris 31
2.5.5 Verification “Matching” 32
2.5.6 Effect of the Eyebrows and Upper and
Lower Eyelids 33
2.6 Discrete Geometry in the Definition of an Edge
in an Image 33
2.7 Pretopological Aspects in Image Classification 34
2.7.1 Overview of the Pretopological Spaces 34
2.7.2 Different Types of Pretopological Structures 37
2.7.3 Classification Method 38
2.8 Conclusion 40
ChaPter 3 CryPtograPhy 43
3.1 Introduction 43
3.2 Different Cryptographic Methods 43
3.2.1 Symmetric Cryptography 44
3.2.2 Asymmetric Cryptography 46
3.2.3 Digital Signature 48
3.2.4 Digital Certificate 49
3.3 Recapitulative Table of Comparison of Different
Cryptographic Methods 50
3.4 Conclusion 51
ChaPter 4 multiageNt SyStem 53
4.1 Introduction 53
4.2 Properties of Agents 54
4.3 Types of Agents 55
4.4 Communication of Agents 56
4.4.1 Acts of Language 57
4.4.2 Acts of Conversation 58
4.4.3 Languages of Communication 58
4.5 Cooperation of Agents 60
4.5.1 Interactions 60
4.5.2 Coordination 61
4.5.3 Negotiation 62
4.6 Planning in a Multiagent Environment 64
4.7 Architectures of Agents 66
4.7.1 Blackboard Architecture 66
4.7.2 Subsumption Architecture 68
4.7.3 Architecture of Competitive Tasks 68
4.7.4 Architecture of Production Systems 69
