Chapter 04 network security

... labeling 17 Physical Security Measures 18 Physical Security Measures 19 Common Security Threats: Threats to Networks Chapter 4: Network Security CCNA Exploration 4.0 20 Common Security Threats: Threats to Networks • Threats ... forms 2 Objectives • Identify security threats to enterprise networks • Describe methods to mitigate security threats to enterprise networks • Config...

Ngày tải lên: 10/05/2014, 21:46

... key from third party to A and B William Stallings Data and Computer Communications Chapter 18 Network Security Automatic Key Distribution (diag) Automatic Key Distribution  Session Key  Used ... at switches  Particularly on public switched network End to End Encryption  Encryption done at ends of system  Data in encrypted form crosses network unaltered  Destination s...

Ngày tải lên: 06/03/2014, 09:21

... provided using a trusted party. Note 31.2 31-1 SECURITY SERVICES 31-1 SECURITY SERVICES Network security can provide five services. Four of these Network security can provide five services. Four of ... discussed in this section: 31.19 Figure 31.9 MAC, created by Alice and checked by Bob 31.1 Chapter 31 Network Security Copyright © The McGraw-Hill Companies, Inc. Permission...

Ngày tải lên: 15/03/2014, 12:20

... Khoa - Website: www.bkacad.com 1 Chapter 4 – Network Security CCNA Exploration 4.0 Common Security Threats Học viện mạng Bach Khoa - Website: www.bkacad.com Common Security Threats Học viện mạng ... www.bkacad.com Restrictive Access Network A restrictive security model is more difficult to implement . Firewalls and identity servers become the foundation of this model. Closed Ac...

Ngày tải lên: 16/03/2014, 08:20

... n d 17 481968572106750915091411825223071697 12 c d letter l encrypt: decrypt: 8: Network Security 8-1 Chapter 8: Network Security Chapter goals: ❒ understand principles of network security: ❍ cryptography and its many uses beyond “confidentiality” ❍ ... authentication ❍ message integrity ❍ key distribution ❒ security in practice: ❍ firewalls ❍ security in application, tr...

Ngày tải lên: 05/03/2014, 21:20

... security detection, security audit trails, security recovery recovery Model for Network Security Model for Network Security Model for Network Security Model for Network Security  using this ... a security service information for a security service Model for Network Access Model for Network Access Security Security Cryptography and Cryptograp...

Ngày tải lên: 06/03/2014, 16:20

... Frequencies English Letter Frequencies Cryptography and Cryptography and Network Security Network Security Chapter 2 Chapter 2 Fourth Edition Fourth Edition by William Stallings by William Stallings Lecture ... of the other letter of the pair of the other letter of the pair Security of Playfair Cipher Security of Playfair Cipher  security much improved over monoa...

Ngày tải lên: 06/03/2014, 16:20

... FeedBack (OFB) Output FeedBack (OFB) Cryptography and Cryptography and Network Security Network Security Chapter 6 Chapter 6 Fourth Edition Fourth Edition by William Stallings by William Stallings Lecture ... P i i XOR O XOR O i i O O i i = DES = DES K1 K1 (i) (i)  uses: high-speed network encryptions uses: high-speed network encryptions Counter (CTR) Count...

Ngày tải lên: 06/03/2014, 16:20

... ANSI X9.17 PRG ANSI X9.17 PRG Cryptography and Cryptography and Network Security Network Security Chapter 7 Chapter 7 Fourth Edition Fourth Edition by William Stallings by William Stallings Lecture ... key lifetimes should be limited for session key lifetimes should be limited for greater security greater security  use of automatic key distribution on behalf of u...

Ngày tải lên: 06/03/2014, 16:20

... Network Security Network Security Chapter 8 Chapter 8 Fourth Edition Fourth Edition by William Stallings by William Stallings Lecture slides by Lawrie Brown Lecture slides by Lawrie Brown Chapter ... William Stallings Lecture slides by Lawrie Brown Lecture slides by Lawrie Brown Chapter 8 – Chapter 8 – Introduction to Introduction to Number Theory Number Theory The Devi...

Ngày tải lên: 06/03/2014, 16:20