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Network Security Terminologies

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university of education,Lahore
university of education,Lahore

The document discusses network security terminology such as threats, attacks, risk analysis, and cryptography. It defines common threats like spoofing, tampering, repudiation, and denial-of-service attacks. The document also outlines the steps for performing risk analysis and includes an exercise asking questions about finding, removing, and preventing vulnerabilities.

Education
1 of 9
Inam Ul Haq MS Computer Science (Sweden) Inam.bth@gmail.com, mr.inam.ulhaq@ieee.org Discussion forum: questions.computingcage.com Member of IEEE, ACM, Movement Disorder Society, PDF, BossMedia, Michealjfox, Association for Information Systems and Internet Society. Network Security 1 Network Security, University of Okara Lecture 2: Terminologies
Table of Contents Network Security, University of Okara2  Terminologies  White Hacking  Exercise
Terminologies Network Security, University of Okara3  Threats  Attacks  Risk Analysis  Dependability Overview  Terms: Cipher, Cryptology, Cryptanalysis, Cryptography  Exercise
Threat Network Security, University of Okara4  A risk of attack, or, chance of getting attacked.  Attack: when a risk/treat is implemented.  Omini-Present Security: more or less all systems have security aspects that need to be discussed. So Security Engineering deals with ALL aspects of security.  Example: ATM (placing metal to fool customers)
4 Common Threats Network Security, University of Okara5  Common threats in a computer setting include:  Spoofing: the attacker pretends to be somebody else  Tampering with data: e.g. security settings are changed to give an attacker more privileges  Repudiation: a user denies having performed an action like mounting an attack  Denial-of-Service: DoS attacks can make for instance web sites temporarily unavailable
Risk Analysis Network Security, University of Okara6 1.Identify the assets to protect 2.Find the threats for each asset 3.Prioritize each of these risks (asset x vulnerability x threat) 4.Implement controls for each risk, or accept it 5.Monitor the effectiveness of these controls and reiterate
Network Security, University of Okara7
Network Security, University of Okara8
Exercise Network Security, University of Okara9  How to find a vulnerability?  How to remove a vulnerability?  Windows XP (in 2002) = 35M LOC  How to develop and exploit?  How to prevent against exploits?

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Network Security Terminologies

  • 1. Inam Ul Haq MS Computer Science (Sweden) Inam.bth@gmail.com, mr.inam.ulhaq@ieee.org Discussion forum: questions.computingcage.com Member of IEEE, ACM, Movement Disorder Society, PDF, BossMedia, Michealjfox, Association for Information Systems and Internet Society. Network Security 1 Network Security, University of Okara Lecture 2: Terminologies
  • 2. Table of Contents Network Security, University of Okara2  Terminologies  White Hacking  Exercise
  • 3. Terminologies Network Security, University of Okara3  Threats  Attacks  Risk Analysis  Dependability Overview  Terms: Cipher, Cryptology, Cryptanalysis, Cryptography  Exercise
  • 4. Threat Network Security, University of Okara4  A risk of attack, or, chance of getting attacked.  Attack: when a risk/treat is implemented.  Omini-Present Security: more or less all systems have security aspects that need to be discussed. So Security Engineering deals with ALL aspects of security.  Example: ATM (placing metal to fool customers)
  • 5. 4 Common Threats Network Security, University of Okara5  Common threats in a computer setting include:  Spoofing: the attacker pretends to be somebody else  Tampering with data: e.g. security settings are changed to give an attacker more privileges  Repudiation: a user denies having performed an action like mounting an attack  Denial-of-Service: DoS attacks can make for instance web sites temporarily unavailable
  • 6. Risk Analysis Network Security, University of Okara6 1.Identify the assets to protect 2.Find the threats for each asset 3.Prioritize each of these risks (asset x vulnerability x threat) 4.Implement controls for each risk, or accept it 5.Monitor the effectiveness of these controls and reiterate
  • 9. Exercise Network Security, University of Okara9  How to find a vulnerability?  How to remove a vulnerability?  Windows XP (in 2002) = 35M LOC  How to develop and exploit?  How to prevent against exploits?
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