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Deepak Mehta, Lovely Professional University Unit 6: Security Framework

Unit 6: Security Framework

CONTENTS

Objectives
Introduction
6.1 Security Concerns
6.1.1 Types of Security Vulnerabilities in E-Commerce Systems
6.2 Security Solutions
6.2.1 Symmetric Cryptosystems

6.2.2 Asymmetric Cryptosystems
6.2.3 Digital Signatures
6.2.4 Public Key Cryptography Standards
6.2.5 Protocols for Secure Messaging
6.2.6 SET Protocols
6.2.7 Public Key Certificates
6.3 E-Cash over the Internet
6.3.1 Elements in Electronic Cash Flow

6.4 Summary
6.5 Keywords
6.6 Self Assessment
6.7 Review Questions
6.8 Further Readings

Objectives
After studying this unit, you will be able to:
• Discuss security concerns
• Understand the security solutions

• Explain e-cash over the Internet
Introduction

In software industry, security is defined in two different perspectives, one from the viewpoint of
software developers and the other from the customers. The main concern for software developers is to
ensure that the system comprises certain security features to safeguard it. For example, many software
products ensure the password to be at least six characters long and have a capability of encrypting
sensitive data. For customers using software product, the main concern would be to obtain protection
against virus attacks.

If your system is not safeguarded by antivirus software, then it is prone to get
affected by virus when you download games or other files from the Internet.
Here, your system is an example of insecure system.

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