Chapter 4 – Network Security docx

... 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. C...

Ngày tải lên: 16/03/2014, 08:20

... 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

... icmp_seq=12 ttl= 244 time =47 2.212 ms 64 bytes from 216.136.2 04. 21: icmp_seq=13 ttl= 244 time =44 8.322 ms 64 bytes from 216.136.2 04. 21: icmp_seq= 14 ttl= 244 time =44 1.352 ms 64 bytes from 216.136.2 04. 21: icmp_seq=15 ... icmp_seq=2 ttl= 244 time =47 9.077 ms 64 bytes from 216.136.2 04. 21: icmp_seq=3 ttl= 244 time =47 3.7 74 ms 64 bytes from 216.136.2 04. 21: icmp_seq =4...

Ngày tải lên: 11/12/2013, 00:15

... Chapter 4: Fluid Kinematics Chapter 4: Fluid Kinematics ESOE 505221 Fluid Mechanics 10 Flow Visualization Flow visualization ... experiments: dye in a water flow, or smoke in an airflow. Chapter 4: Fluid Kinematics ESOE 505221 Fluid Mechanics 18 Streaklines Chapter 4: Fluid Kinematics ESOE 505221 Fluid Mechanics 19 Streaklines Cylinder x/D A ... pattern. Pathline: time-exposed...

Ngày tải lên: 13/12/2013, 21:16

... Chapter 4: APIs- P2 Subrequests Subrequests are request objects that inherit all their settable ... components created via the HTML::Mason::Interp->make_component() method (covered in Chapter 5 and Chapter 6) will simply be of the HTML::Mason::Component class. For the most part, these ... are using Mason under mod_perl with the HTML::Mason::ApacheHandler class, which is co...

Ngày tải lên: 14/12/2013, 12:15

... etc.). ,ch 04. 21778 Page 103 Thursday, November 18, 20 04 12:35 PM This is the Title of the Book, eMatter Edition Copyright © 20 04 O’Reilly & Associates, Inc. All rights reserved. 1 04 | Chapter 4: ... undef ,ch 04. 21778 Page 110 Thursday, November 18, 20 04 12:35 PM This is the Title of the Book, eMatter Edition Copyright © 20 04 O’Reilly & Associates, Inc. All rights rese...

Ngày tải lên: 21/01/2014, 06:20

... possibilities: – Unconditional – Computational security ● Unconditional security: an example – One-time tape ● Most systems have computational security – How much security to have? – Depends on cost-benefit analysis ... 31 – N = 527, Phi(N) = 48 0 – Choose E = 7, then D = 343 – If M = 2, Encryption: C = 128 – Decryption: D = C D mod N = 128 343...

Ngày tải lên: 05/03/2014, 23:20

... 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