computer security & network security
Post on 09-Jun-2015
268 Views
Preview:
DESCRIPTION
TRANSCRIPT
1
COMPUTER SECURITY
Presented by:- Janardan subhedar Sheetal pandharkame Ashish lad Vaibhavi thakur
Content Outline Introduction Basic principle of computer
security Security attacks Encryption attack Role of people in security Access control Cryptography Biometrics Conclusion
3
Introduction
Computer security is nothing but to provide security to data, computer system, services and supporting procedure.
For this purpose various technology were used like access control mechanism, cryptography and biometrics etc.
Basic principle’s of computersecurity
4
Authorization Integrity
Availability4
25
3
1
Basic principl
e’
Authentication
Confidentiality
Security attacks
5
Passive attack
Active attack
Types of security attack
1
2
Encryption attack
6
Encryption is the process of transforming plaintext into cipher text, which is in unreadable format known using specific technique.
Role of people in security
Username and password
Choosing password
Managing password
Access control
8
Use of physical access control is the same as that of computer and network access control to restrict access to unauthorized users.
Physical access control based on following points:-
Something the individual has, Something they know Something they are
BiometricsAccess control are not only
method to limit the unauthorized access to the system. Some new approach is to utilize something unique about the user’s is called biometric.
List of biometrics:- Fingerprint Voice/Speech
Signature/Handwriting
9
Cryptography
10
Cryptology
Basic algorithm & techniques
Symmetric & asymmetric
CryptographyCryptography
Cryptanalysis
Conclusion
Hackers will never stop hacking. You should never stop defending yourself from attack.
Security is a very difficult topic. Everyone has a different idea of what ``security'' is, and what levels of risk are acceptable. 11
12
top related