... các thiết bị wireless mới được chứng
nhận bởi Wi-Fi Alliance
Wireless VLANs
Personal Wireless Security
Bảo mật wireless điển hình được chia thành 2 loại:
Personal wireless security: thiết ...
WPA2 Personal Security
Enterprise WirelessSecurity
IEEE 802.11i
WPA Enterprise Security
WPA2 Enterprise Security
Enterprise WirelessSecurity Devices
Device Authentication
...
một thành phần của mạng
wireless.
WPA Enterprise Security
TKIP Encryption
Personal Wireless Security
Lịch sử của WIFI
Sau thời gian ngắn phát hành 2 chuẩn mạng wireless 802.11b và 802.11a,...
... following:
a) MN visits new network
b) New network obtains the address of old network
c) New network requests context transfer to old network
d) Old network transfers context of MN to new network
e) After ... PRF.
5
a network manager can use either an open or a closed network.
In an open network, anyone is permitted to join the network.
In a closed network, only those clients with knowledge of
the network ... system security, Com-
puter network security, Data security
I. INTRODUCTION
Wireless communication technologies cover a whole spec-
trum from Wireless Personal Area Networks (WPAN), such
as Bluetooth...
... me”
•
“Nobody will find my wirelessnetwork
Wireless Security
Misconceptions
31
Above are what I believe to be the most common 5 wirelesssecurity misconceptions. Now, some wirelesssecurity is better ... protected wireless setup. An open wirelessnetwork exists on the outside of the firewall. Clients
connect to the open wireless network. The firewall allows all clients on the open wirelessnetwork ... installed on Vista,
Topics
•
Why wirelesssecurity is increasingly important
•
Wireless security misconceptions
•
Wireless Attacks
-
Detection & Prevention
•
Defensive Wireless Computing
2
The roadmap...
... (or go to Start > Control
Panel > Network)
2. Select your Wireless LAN Card, right click on the icon and select “Properties”. Click on Wireless
Network tab.
3. Select the Access ... Windows XP Wireless Utility as an example.
2. Right click on “My Network Places” on your desktop and select “Properties” (or go to Start >
Control Panel > Network) .
3. Select your Wireless ... Windows XP Wireless Utility as an example.
2. Right click on “My Network Places” on your desktop and select “Properties” (or go to Start >
Control Panel > Network) .
3. Select your Wireless...
... WLAN.
Laptop
Bluetooth Network
Mobile Phone Network
IEEE 802.11 Network
Mobile Phone
PDA
Laptop
Bluetooth Network
Mobile Phone Network
IEEE 802.11 Network
Mobile Phone
PDA
Figure 2-1. Notional Ad Hoc Network
2.2 Wireless ... means
No Security or security is provided through other means
Router
Hub
Hub
AP
AP
Wired LAN
Wired LAN
802.11 Security
802.11 Security
No Security or security is provided through other means
No Security ... Security or security is provided through other means
Figure 3-5. WirelessSecurity of 802.11 in Typical Network
3.3.1 Security Features of 802.11 Wireless LANs per the Standard
The three basic security...
...
Infrastructure-based wireless networks
Infrastructure-less wireless networks
Wireless
Networks
Wireless LAN
in Access
Point Mode
Wireless
Mesh
Networks
Cellular
Telephone
Networks
Wireless
LAN ... presents an overview of
security issues along with the fundamental concepts related to wireless networks such as cellular
wireless network, wirelesses LAN, wireless Personal Area Network (PAN), WiMAX ... for
wireless ad hoc networking.
6
Core network consists of circuit switch network, packet switched network and IP multimedia
networks. The high-end network servers facilitate the core network...
... interacts with existing networks, wireless
and wired. Any networking research that the NSF supports on new classes
of wireless networks should be complemented with security research that
addresses ... desynchronization.
Popular security approaches in sensor networks can be classified as cryp-
tography and key management, routing security, location security, data
fusion security, and security maintenance. ...
the security of wireless ones, provided those doing the extension under-
stand the special characteristics of wireless networks. Auditing and logging
Security and Privacy for Mobile and Wireless...
... technology. The disadvantages of using a wirelessnetwork are:
Security, Range, Reliability, and Speed.
Wireless Networks present a host of issues for network managers. Unauthorized access
points, ... associated
with the use of wireless technology. We also discuss a number of available solutions for
countering those threats.
Keywords : Wireless Network, Wireless Security, Wireless Threats, Signal-Hiding ... with other networks and network components. The
majority of computers sold to consumers today come pre-equipped with all necessary wireless
Networks technology. The benefits of wireless Networks...
... external
contact and data transfer through remote
places.
3. SECURITY ISSUES
Security is an important issue for wireless
networks, especially for those security
sensitive applications. Many users of data
transmission ... Integration of security in
network routing protocols. SIGSAC
Reviews, 1993, 11(2),18-25.
18. Murphy, S. & Garcia-Luna-Aceves, J.J.
An efficient routing algorithm for mobile
wireless networks. ... in wireless and mobile
networking.
www.cise.nsf.gov.
4. Arbaugh, W.A. An inductive plaintext
attack against IEEE 802.11. Working
Group, 2001.
5. Arbaugh, W.A.; & Shankar, N. Your
wireless network...
... network. Thus unauthorized network access
becomes very difficult even for hackers who possess the equipment to attack the
SkyRiver network.
Physical & Network Security
. SkyRiver’s network ... used in wirelessnetwork function as routers, individual wireless
subscribers are isolated from the majority of network traffic. Network subscribers are
unable to gain IP access to any network ... whether the network is wire-line or wireless, steps can and should
always be taken to preserve networksecurity and integrity.
It should be clear from the discussion above that wireless networks...
... go to “Start/
Settings/ Network or double click a network icon which represents your wirelessnetwork
on system tray where right down your screen).
3. Select your Wireless LAN Card right clicks ... go to “Start/
Settings/ Network or double click a network icon which represents your wirelessnetwork
on system tray where right down your screen).
3. Select your Wireless LAN Card right clicks ...
1. Connect your computer to a network, which can connect to RADIUS Server (How ever
wired or wireless connection, if you do use wireless connection please turn all security
method off first otherwise...
... wide
area networks (WWANs), that is, cellular networks. How-
ever, wirelessnetworksecurity is a major obstacle to success-
fully deploy these wireless networks. The effort to improve
wireless network ... advances in wirelessnetwork technologies are grow-
ing fast, evidenced by wireless location area networks (WL-
ANs), wireless personal area network (WPANs), wireless
metropolitan area networks ... networksecurity performance evaluation, wireless link
layer security, tradeoff analysis between performance and se-
curit y, authentication and authorization for mobile service
network, and wireless...
... Sybil attacks. Another sensor-based mechanism
Wireless Network Security
EURASIP Journal on
Wireless Communications and Networking
Wireless Network Security
Guest Editors: Yang Xiao, Hui Chen, ... multihop
networks. Attacks on routing protocols can render such
networks nonfunctional. Many wireless sensor networks can
be viewed as multihop ad hoc networks. The following three
papers discuss security ... directions.
Ever-evolving mobile wireless networking technology
leads to coexistence of many different wireless networks.
Seamless and fast handover among different networks such
as Wireless LANs (e.g., IEEE...