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Ramandeep Kaur, Lovely Professional University                                  Unit 12: Security Solution



                                Unit 12: Security Solution                                      Notes



             CONTENTS

             Objectives
             Introduction
             12.1 Encryption
             12.2  How Encryption Works?
             12.3  Symmetric or Secret-key Encryption
             12.4 Public-key Encryption

             12.5  Digital Encryption Standards (DES)
             12.6 Triple—DES
             12.7 RSA System
             12.8  Comparison between Symmetric and Public Key Encryption
                 12.8.1  Symmetric Key Encryption
                 12.8.2  Public Key Cryptography (Encryption)
             12.9 Digital Signature
                 12.9.1 Signing Process
                 12.9.2  Advantages of Digital Signature

             12.10 Digital Certifi cate
             12.11 Certifi cate Authority
             12.12  Enterprise Authentication using Digital Certifi cates
             12.13 Summary
             12.14 Keywords
             12.15 Self Assessment
             12.16 Review Questions

             12.17 Further Readings
          Objectives


          After studying this unit, you will be able to:
               Know the concept of encryption
               Describe secret and public key encryption
               Explain DES
               Describe digital signature
               Describe digital certifi cate concept










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