Network Security

Nov 24, 2012

520 likes | 632 Views

Share Presentation

Embed Code

Link

bernard

Download Presentation

Network Security

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

Network Security

Network Security. Security and Safety. Security controls access to your data. Who can see it Who can change it Safety guarantee’s availability of your data Your data is available. When you go to a Web Site What “Personal” Info is Transmitted. The Client’s (Your) IP address.

616 views • 33 slides

Network Security

Network Security. Encryption. Process of converting readable data into unreadable characters to prevent unauthorized access. Encrypt – make unreadable Decrypt – make readable. Encryption…Cont’d. Plaintext – data not yet encrypted Ciphertext – data that has been encrypted

295 views • 9 slides

Network Security

Network Security. ITIS 6201 – Computer Security and Privacy. Fictional Health Services – High-level Network Diagram. Pharmacy. Physical Security. Medical Technology X-ray Scans Labs. The Internet. Internet Access (In/Out). Authentication Services. Mainframe. Server Farms.

332 views • 8 slides

Network Security

Network Security. Computer Networking: A Top Down Approach Featuring the Internet , 3 rd edition. Jim Kurose, Keith Ross Addison-Wesley, July 2004. understand principles of network security: cryptography and its many uses beyond “confidentiality” authentication message integrity

1.03k views • 86 slides

NETWORK SECURITY

NETWORK SECURITY. Public-Key Cryptography and Message Authentication. OUTLINE Approaches to Message Authentication Secure Hash Functions and HMAC Public-Key Cryptography Principles Public-Key Cryptography Algorithms Digital Signatures Key Management. What Is Message Authentication.

839 views • 60 slides

Network Security

Network Security. Port Scanning and Enumeration (NMAP). Port Scanning. Definition: Probing the ports on a remote machine to gain information Port – a virtual identifier on a system for a particular application/protocol Examples: ftp: port 21 ssh: port 22 telnet: port 23 http: port 80

439 views • 10 slides

Network Security

Dr. Subrata Goswami Aerogram Networks Fremont, CA. Network Security. Overview. History Current State Current Efforts. History. For a long time network security implied cryptography to the R&D community (50-90).

430 views • 26 slides

Network Security

Network Security. Confidentiality Using Symmetric Encryption.

285 views • 19 slides

Network security

Network security. Basic encryption techniques. Luk Stoops VUB - programming laboratory. Security Problems. Student To have fun snooping on people’s email Hacker To test out someone’s security system; steal data Sales rep To claim to represent all of Europe, not just Andorra Businessman

748 views • 56 slides

Network Security

Network Security. Attack Analysis. Outline. Types of Attacks Vulnerabilities Exploited Network Attack Phases Attack Detection Tools. Top Cyber-security Risks. Application vulnerabilities exceed OS vulnerabilities Password guessing – SQL, FTP, SSH Web application attacks

543 views • 39 slides

Network Security

Network Security. Accessing the WAN – Chapter 4 – PART I Modified by Mike Haines. 08/20/2009. Objectives. In this chapter, you will learn to: Identify security threats to enterprise networks Describe methods to mitigate security threats to enterprise networks

771 views • 61 slides

Network Security

Network Security. introduction cryptography authentication key exchange required reading: text section 7.1. Network Security. Intruder may eavesdrop remove, modify, and/or insert messages read and playback messages. Important issues:

379 views • 20 slides

Network Security

Network Security. Professor Dr. Adeel Akram. Firewalls: A Practical Guide. Outline. ICSA Labs ICSA Certified Firewalls Kerio Winroute Firewall Astaro Security Gateway WatchGuard X1000 Firewall CASE Study Kerio Winroute Firewall 6. About ICSA Labs.

536 views • 37 slides

Network Security

Network Security. What is network security?. Network security is preventing attackers from achieving objectives through unauthorized access or unauthorized use of computers and networks. www.cert.org. Basic Security Measures.

1.01k views • 87 slides

Network Security

Network Security. Tomas Musteikis t.musteikis@tf.su.lt Department of Information Technologies Siauliai University Lithuania. Slides are modified from J.F Kurose and K.W. Ross. Goals: understand principles of network security: cryptography and its many uses beyond “confidentiality”

674 views • 55 slides

Network Security

Network Security. Henric Johnson Blekinge Institute of Technology, Sweden www.its.bth.se/staff/hjo/ henric.johnson@bth.se +46 708 250375. Outline. Attacks, services and mechanisms Security attacks Security services Methods of Defense A model for Internetwork Security

222 views • 14 slides

Network Security

Lecture 5 Secure Protocols – IPSec. Network Security. Objectives of Lecture. Revisit the ‘secure channel’ concept from Lecture 4. Understand the pros and cons of providing security at different network layers. Investigate how IPSec provides security at the Internet layer.

574 views • 45 slides

Network Security

Network Security. Bijendra Jain (bnj@cse.iitd.ernet.in). Lecture 1: Introduction. Top-level issues. Safety, security and privacy Security policy threats, both external and internal economic gains cost of securing resources cryptographic methods vs. physical security

464 views • 34 slides

Network Security

Network Security. DMZ (De-Militarized Zone). General Framework. What is a DMZ?. A DMZ is a computer network that sits between a trusted internal network, such as a corporate private LAN, and an untrusted external network, such as the public Internet Also known as a

419 views • 16 slides

Network Security

Network Security. By : B A Patel Narmada College Of computer Application Zadeshwar, Bharuch. Outline Cryptography Symmetric-Key Algorithms Public-Key Algorithms Digital Signatures. Why To have Computer Network?. Why To have Computer Network?. For Communication For resource sharing.

2.11k views • 155 slides

network security planning, network security SMB

With the increase in cyber-attacks, it’s essential to have a comprehensive plan in place.

273 views • 9 slides

Network Layer Security Network Systems Security

Network Layer Security Network Systems Security. Mort Anvari. Security in Network Layer. Implementing security in application layer provides flexibility in security policy and key management Problem is need to implement security mechanism in every application individually

569 views • 24 slides

More Related