... Neural Network for ComputerNetworkSecurity
Khalil Shihab
Department of Computer Science, SQU, Box 36, Al-Khod, 123, Oman
Abstract: In this paper, an efficient and scalable technique for computer ...
generator and a clipped neural network. Advances
in Neural Networks-ISNN, Intl. Symp. Neural
Networks Proc., Part II. Lecture Notes in Computer
Science, 3174: 639-644
J. Computer Sci., 2 (9): 710-715, ...
A chaotic-neural -network- based encryption
algorithm for JPEG2000 encoded images.
Advances in Neural Networks, Intl. Symp. Neural
Networks Proc., Part II, Lecture Notes in Computer
Science,...
... they focus on computernetworksecurity within the organization or not. Each organization will
normally focus on the computernetwork performance rather than the computernetworksecurity within ... support for any security protocols concerning organization’s computernetwork security.
Software acting on the organization’s computernetworksecurity and the software running on the
network should ... organization have not fully cooperated with the security rules. Therefore,
organization’s computernetworksecurity is inefficient and ineffective. Computernetworksecurity can
prevent harm at a certain...
... response.
Network technology is in transition. Discuss the direction of
network technology.
Understanding
Network Security
What
Is
Network Security?
Before we talk about network security, ...
Computer NetworkSecurity
1.8
Network Connecting Devices
Before we discuss network connecting devices let us revisit the
network infrastructure. We have defined a network as a mesh of
network ...
enforcement play in computernetworksecurity
efforts
5
Finally, initiate a debate on the future of cyberspace
security where it is still lacking.
Computer NetworkSecurity
A new movement...
... staff that setup and conduct security testing should
have significant security and networking knowledge, including significant expertise in the following
areas: network security, firewalls, intrusion ...
National Institute of Standards and Technology
Arden L. Bement, Jr., Director
SP 800-42 GUIDELINE ON NETWORKSECURITY TESTING
+ Routers and switches
+ Related network- perimeter security systems ...
(CIFS/SMB, NFS, FTP, etc.)
Main
Firewall
& VPN
Server
Network
IDS
Network
IDS
Dial-in
Server
Network
IDS
External DMZ Network
Internal DMZ Network
External
Web Server
with Host IDS
External
DNS...
... Extrapolation
• Security gets subsumed as a
“click feature” in network
management
• “Hey Bob the router guy! When
you’re done with turning on the VOIP
in the router, turn on the IPS security
features ... days of computer
security:
• Audit function - oversight
• Mainframe usage accounting and
system log analysis
• Often an accounting function
separate from IT
Short Form
• In 5 years, security ... talk
• Some History
• Current State of Security
• Some Extrapolation
Drivers
• Overinvestment in late 1990s
• VCs fund (approximately) 200
security start-ups
• Security market is about $20 bn
• Subtract...
... interconnect multiple computers and networks. These
hubs retransmit all network traffic to all computers connected to
that hub. The security implication is that if one computer has its
security compromised ... 1997).
Network Security
Network security architecture is the planning and design of the
campus network to reduce security risks in accordance with the
institution’s risk analysis and security ... developing its security plan.
These common elements include network security, computer (or
“host”) security, middleware and directory services, and application-
based security. An IT security architecture...
... Principals,
Attacker
S
e
n
d
Re
c
e
i
v
e
Protocol
Private
Data
Logic has
symbolic
and
computational
semantics
Network Security Protocols:
Analysis methods and standards
John Mitchell
Stanford University
Joint work with many students, ... networking, VoIP, mobility
Typical standardization effort takes a couple of years
Achievable goal: systematic methods that can be used
by practicing engineers to improve network, system
security
20
4-Way ... IKEv2
Mobility and Multihoming
Protocol
Analysis of ZRTPOnion Routing
Security analysis of SIP
Formalization of
HIPAA
Security Analysis of
OTRv2
http://www.stanford.edu/class/cs259/
8
Supplicant
UnAuth/UnAssoc
802.1X...
... practices in computersecurity and data
confidentiality.
Security experts advise that computersecurity is an ongoing process, not a
single safeguard or product. Rather, computersecurity is ... staff
.
.
.
.
.
.
.
.
.
.
Computer and Network Security: Questions Everyone Should Ask
Page 2
Computer and Network
Security: Questions
Everyone Should Ask
A guide ... backup tapes?
Current Awareness of Security Issues
o What news sources do you use to stay abreast of new security risks? Resources include:
Computer and Network Security: Questions Everyone Should...
... room containing the computer
– Physical aspects of security
• Controlling who is allowed to make changes to a computer system
(both its hardware and software)
– Social aspects of security
1/9/07 ... 551 13
CERT Incidents
1/9/07 CIS/TCOM 551 12
Slashdot Security Headlines in 2007
• Microsoft Gets Help From NSA for Vista Security
• NYT Security Tip - Choose Non-Microsoft Products
• Blurring ... usability?
– What kind of authentication/access controls are there?
CIS 551 / TCOM 401
Computer and Network
Security
Spring 2007
Lecture 1
1/9/07 CIS/TCOM 551 20
How to think about tradeoffs?
•...
... Database
2/6/06 CIS/TCOM 551 17
Implementing Multilevel Security
• Dynamic:
– Tag all values in memory with their security level
– Operations propagate security levels
– Must be sure that tags can’t be ... Static:
– Program analysis
– May be more precise
– May have less overhead
CIS 551 / TCOM 401
Computer and Network
Security
Spring 2006
Lecture 6
2/6/06 CIS/TCOM 551 4
Access Control
• Discretionary: ... = X;
2/6/06 CIS/TCOM 551 9
Multilevel Security Policies
• In general, security levels form a "join semi-lattice"
– There is an ordering ≤ on security levels
– For any pair of labels...
... MIT 6.857 Computer and NetworkSecurity Class Notes 1
File: http://theory.lcs.mit.edu/˜rivest/notes/notes.pdf Revision: December 2, 2002
Computer and Network Security
MIT 6.857 Class ... rights reserved. May be freely reproduced for educational or personal use.
MIT 6.857 Computer and NetworkSecurity Class Notes 10
File: http://theory.lcs.mit.edu/˜rivest/notes/crt.pdf Revision: ... rights reserved. May be freely reproduced for educational or personal use.
MIT 6.857 Computer and NetworkSecurity Class Notes 7
File: http://theory.lcs.mit.edu/˜rivest/notes/orders.pdf Revision:...
... current needs
for computer and network security.
01chap.qxd 8/31/03 10:02 AM Page 12
6COMPUTER AND NETWORKSECURITY IN HIGHER EDUCATION
It is clear that computer and networksecurity is now essential
to ... Security and Academic Values
Diana Oblinger
Computer and NetworkSecurity in
Higher Education
Mark Luker and Rodney Petersen, Editors
A Publication of EDUCAUSE
10 COMPUTER AND NETWORKSECURITY ... create a culture of computer and network security.
Higher Education Values
Several core academic values are potentially affected by the need
for increased computer and network security. These include...