scholarly journals Anticipating WPS PIN Vulnerability to Secure Wireless Network

2013 ◽  
Vol 4 (2) ◽  
pp. 1116
Author(s):  
Indra Dwi Rianto
Keyword(s):  
Wireless Network ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Access Point ◽  
Local Area ◽  
Area Network ◽  
Security Vulnerability ◽  
Design Flaw ◽  
Set Up

WiFi Protected Setup (WPS) is a standardized function supported by numerous vendors of wireless routers and access point to help set up connection to a wireless local area network. It is designed to simplify the set up and generally enabled by default. Due to design flaw, the WPS or QSS PIN is susceptible to a brute forceattack. In this paper, we test the security vulnerability occurred, evaluate the performance and give recommendations to anticipate the attack.

Computer Security and Privacy in Wireless Local Area Network in Nigeria

2013 ◽  
Vol 9 ◽  
pp. 23-33
Author(s):  
P.E. Orukpe ◽  
T.O. Erhiaguna ◽  
F.O. Agbontaen
Keyword(s):  
Computer Security ◽  
Wireless Network ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Access Point ◽  
Local Area ◽  
Security And Privacy ◽  
Portable Devices ◽  
Area Network ◽  
Computing Services

The advent of wireless computing and massive processing power available within portable devices provides organizations with an unprecedented ability to provide flexible computing services on-demand to enable business initiatives and this development has increased the demand for wireless network security, which if unaddressed enables the theft of data, lowers productivity, and causes quantifiable financial losses. Flaws arising from wireless protocol with networking design and implementation errors present challenges to the Wireless Fidelity (Wi-Fi) community of users. In this paper, we attempt to document and classify the flaws in Wi-Fi Protected Setup (WPS), then proving the existence of this flaw with a WPS Pin Cracking Method, and presenting a Reverse Engineering countermeasure to eliminating WPS from an Access Point firmware, including other recommendations to helping the network administrators not repeat the errors that are the root causes of flaws of wireless networking in general from being exploited. By implementing the various techniques discussed in this paper, a better and more secure wireless network will be developed.

scholarly journals Security Mechanism for user access to Single SSID WLAN

2020 ◽  
Vol 245 ◽  
pp. 07009
Author(s):  
Li Wang ◽  
Mingshan Xia ◽  
Fazhi Qi
Keyword(s):  
Access Control ◽  
Wireless Network ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Mobile Station ◽  
Access Point ◽  
Local Area ◽  
Area Network ◽  
Office Work ◽  
Network Resources

Wireless local area network (WLAN) technology is widely used in various enterprises and institutions. In order to facilitate the use of users, they often provide a single SSID access point, resulting in different identities of users authenticated and authorized can connect to the wireless network anytime, anywhere as needed and obtain the same accessible network resources such as bandwidth, access control (ACL) and so on. Multiple SSID can solve the problem but it will be confused to users who don’t know which SSID can be connected. Although we could prevent visitors from accessing intranet resources by isolating the wireless network from the internal network, this would make it impossible for users to use the wireless network for internal office work. In this paper, we propose an access control system that grouping users according to the different identities and users authenticated and authorized can access different network resources because a wireless access point dynamically maps an SSID provided by a mobile station to a BSSID based on a VLAN assignment. The deployment experiment of the solution proves that users of different identities accessing the same wireless network can set different access policies, which effectively improves the security of the wireless network and simplifies the management of the wireless network.

scholarly journals ANALISIS TRANSFER RATE WIRELESS LOCAL AREA NETWORK DENGAN STANDAR IEEE 802.11A DAN IEEE 802.11G PADA KANAL LINE OF SIGHT

2016 ◽  
Vol 3 (1) ◽  
pp. 31-39
Author(s):  
F Ammar ◽  
Hanafi Hanafi
Keyword(s):  
Transfer Rate ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Access Point ◽  
Local Area ◽  
Line Of Sight ◽  
Area Network ◽  
Ieee 802.11A ◽  
5 Ghz

WiFi bekerja pada band 2,4 GHz dan 5 GHz. Standar WiFi yang bekerja pada frekuensi ini antara lain IEEE802.11g dan IEEE802.11a. Pada penelitian ini dilakukan pengukuran terhadap transfer rate download dan upload data dengan standar IEEE802.11g dan IEEE802.11a. Pengukuran dilakukan pada kanal Line of Sight (LOS), menggunakan dua buah laptop yang dihubungkan dengan Access Point (AP) standar IEEE802.11g dan IEEE802.11a.  Hasil penelitian diperoleh, pada standar IEEE802.11g, transfer rate download dan upload data tertinggi 2.662,54.KB/s dan 2.549,60 KB/s, dan terendah 484,50.KB/s dan 477,40 KB/s, sedangkan pada standar IEEE802.11a, transfer rate download dan upload data tertinggi 8.104,68 KB/s dan 5.744,24 KB/s, dan terendah 872,24 KB/s dan 465,38.KB/s. Pada standar IEEE802.11g, transfer rate download dan upload data pada sinyal terendah hingga di bawah 35% dan 30%, dari transfer rate download dan upload data tertinggi. Pada standar IEEE802.11a, transfer rate download dan upload data pada kualitas sinyal terendah hingga di bawah 20% dan 30%, dari transfer rate download dan upload data tertinggi. Kemampuan transfer rate download data Standar IEEE802.11a, 2–3 kali lebih baik pada kondisi kualitas sinyal tertinggi, dan tidak lebih dari 2 kali pada kondisi kualitas sinyal terendah, dibandingkan kemampuan transfer rate download data standar IEEE802.11g. Kemampuan transfer rate upload data Standar IEEE802.11a, 1,4–3 kali lebih baik pada kondisi kualitas sinyal tertinggi, dan 1-3 kali lebih baik pada kondisi kualitas sinyal terendah, dibandingkan kemampuan transfer rate upload data standar IEEE802.11g.

scholarly journals Rancang Bangun Antena Yagi 2400 MHz Untuk Receiver Komunikasi WiFi

2021 ◽  
Vol 8 (2) ◽  
pp. 75-84
Author(s):  
Gusni Amini Siagian ◽  
Lindawati Lindawati ◽  
Sopian Soim
Keyword(s):  
Standing Wave ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Access Point ◽  
Local Area ◽  
Area Network

Wireless Local area Network  (WLAN) suatu jaringan area lokal tanpa kabel yang menggunakan frekuensi radio sebagai media transmisinya. Dalam penelitian ini merancang sebuah jaringan wifi di Perumahan Dosen Politeknik Negeri Sriwijaya, yang pancaran wifinya dari kampus Politeknik Negeri Sriwijaya, sehingga Perumahan Dosen dapat mengakses wifi tanpa perlu datang ke kampus. Sebagai receiver komunikasi wifi diperlukan peranan antena dalam sistem komunikasi tanpa kabel (wireless) dengan jarak jauh, antena yang digunakan adalah antena yagi yang bekerja pada frekuensi 2400 MHz. Antena yagi dipilih karena sifatnya yang directional atau pola pancarannya yang terarah. Dalam perancangan antena yagi untuk ukuran reflector, driven, director dan balun dibantu dengan software yagi calculator serta disimulasikan dan diuji  menggunakan MMANA-GAL untuk menghasilkan parameter antena yang lebih akurat. Antena yagi ini kemudian akan dihubungkan dengan access point yang disetup sebagai client untuk menerima sinyal dari transmitter dan router sebagai proses routing agar user di Perumahan Dosen dapat mengakses wifi tersebut. Berdasarkan hasil pengujian MMANA-GAL antena yagi dengan frekuensi 2400 MHz, diperoleh Standing Wave Ratio (SWR) sebesar 1.16 dan Penguatan (Gain) sebesar 14,59 dB.  

Research on Improvement of the Next Generation IEEE802.11ac Channel Model

2013 ◽  
Vol 712-715 ◽  
pp. 1741-1745
Author(s):  
Hao Cai ◽  
Dan Ao Han
Keyword(s):  
Wireless Local Area Network ◽  
Channel Model ◽  
Local Area Network ◽  
Local Area ◽  
Task Group ◽  
Mimo Channel ◽  
Area Network ◽  
Power Delay Profile ◽  
Ieee 802.11Ac ◽  
Set Up

Based on the special correlation of antennas and the power delay profile (PDP) of the cluster model, six models of A-F have been established by the TGn task-group in total. On the basis of the new broadband wireless local area network (WLAN) standard--IEEE 802.11ac with larger bandwidth and multi-user requirements drawn up by the TGac task-group, in this paper, the IEEE 802.11ac channel model is set up by means of improving and simulating the indoor MIMO channel.

Implementation of a Digital Radiographic Image Acquisition and Retrieval System (DRIARS) Using a Wireless Network in an Orthodontic Department

2008 ◽  
Vol 9 (4) ◽  
pp. 115-123 ◽  
Author(s):  
Muralidhar Mupparapu ◽  
Robert E. Binder ◽  
John M. Cummins ◽  
Cecile A. Feldman ◽  
Mark A. Cappelli ◽  
...  
Keyword(s):  
Wireless Network ◽  
Retrieval System ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Image Acquisition ◽  
Local Area ◽  
Dental School ◽  
Area Network ◽  
Radiographic Image ◽  
X Ray

Abstract Aim The objective of this report is to describe the implementation and pilot-test of an integrated wireless local area network (WLAN) system that incorporated the Planmeca Promax® CCD based digital panoramic/ cephalometric x-ray system, Dolphin® software, and multiple remote user units to increase the efficiency of data management by the residents in the Department of Orthodontics. Background The Department of Orthodontics of the New Jersey Dental School (NJDS) acquired the Dolphin® cephalometric analysis software and the Planmeca Promax® digital panoramic/cephalometric x-ray units on separate occasions. Dolphin has been in use for many years at this institution, the current version being 10, and the Promax was acquired in the Fall of 2002. The digital panoramic and cephalometric radiographs were acquired and stored separately in the Planmeca's Dimaxis database. Report During the incorporation of the WLAN, there was an opportunity to research and install the best available security system for the WLAN so it could be a network model for the other departments within the dental school and perhaps other dental schools around the nation. Summary Digital radiographs, once obtained, can be stored locally or transmitted securely to remote locations via a local area network. This article describes the selection criteria and methodology that would optimize the transmission and retrieval of such images instantaneously on demand at chair side locations. This will not only save significant clinical time but will enhance the productivity of the clinic in the long run. Citation Mupparapu M, Binder RE, Cummins JM, Feldman CA, Cappelli MA, Matheson PB. Implementation of a Digital Radiographic Image Acquisition and Retrieval System (DRIARS) Using a Wireless Network in an Orthodontic Department. J Contemp Dent Pract 2008 May; (9)4:115-123.

scholarly journals TECHNICAL PRINCIPLES FOR CREATING A WIRELESS LOCAL NETWORK WI-FI

T-Comm ◽  
2021 ◽  
Vol 15 (7) ◽  
pp. 28-33
Author(s):  
Albina Y. Sharifullina ◽  
◽  
Roman R. Galyamov ◽  
Rimma S. Zaripova ◽  
◽  
...  
Keyword(s):  
Wireless Networks ◽  
Wireless Network ◽  
Wireless Lan ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Local Network ◽  
Area Network ◽  
Access Points ◽  
Basic Service

This article discusses the stages of development, characteristics of a wireless local area network Wi-Fi, options for its topology and equipment used. Currently, there are such different types of wireless networks as Wireless Wide Area Network, Wireless Metropolitan Area Networks (Wireless Neighborhood Area Network), Wireless Local Area Network, Wireless Personal Area Network. Each of the listed wireless networks has its own specific range and application. Wireless LAN Wi-Fi refers to the Wireless Local Area Network. The first wireless LAN standard, Wi-Fi, was approved in 1997. From the moment of their appearance to the present day, the following standards of this network have appeared: 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, 802.11ad, 802.11ax. For each standard, the speeds and frequency ranges at which the data transmission was carried out are indicated, and the technologies on which they are built are described. Wireless LAN Wi-Fi has three topologies: 1) Ad-Hoc (point-to-point) or Independent Basic Service Set; 2) Basic Service Set (“client / server”) and 3) Extended Service Set (“extended service areas”). To build a Wi-Fi network, network adapters, access points, routers, ADSL modems, Wi-Fi phones, Wi-Fi antennas, Wi-Fi repeaters are used. Wi-Fi adapters are used by devices that do not have a built-in Wi-Fi module. Wi-Fi access points are designed for organizing wireless access within a local network. Wi-Fi routers are designed to route traffic on a computer network. ADSL modems are used to access the Internet over a telephone line. Wi-Fi repeaters are used to expand the coverage of a wireless network using already installed equipment. Wi-Fi phones are wireless IP phones. Wi-Fi antennas are used to extend the range of a wireless network.

scholarly journals A Hybrid of T-Dipole and Quasi-Yagi Antenna for Dual-band WLAN Access Point

2012 ◽  
Vol 2 (1-2) ◽  
Author(s):  
Son Xuat Ta ◽  
Ikmo Park ◽  
Chien Dao-Ngoc
Keyword(s):  
Microstrip Line ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Access Point ◽  
Local Area ◽  
Antenna Design ◽  
Dual Band ◽  
Area Network ◽  
Yagi Antenna ◽  
Peak Gain

In this paper, a hybrid of T-dipole and quasi-Yagi antenna is presented for using in dual-band Wireless Local Area Network (WLAN) access point. The antenna is made up of combination of T-dipole and quasi-Yagi antenna structures, which are distinctly designed to operate at 2.4 and 5.5 GHz frequency bands. A simply integrated balun that consists of a curved microstrip line and a circular slot to allow broadband characteristic is used to feed the antenna. The final antenna design presents measured bandwidths (RL ≤ − 10 dB) of 2.35 – 2.55 GHz and 4.30 – 6.56 GHz which cover completely the two bands of WLAN. Simulated and measured results of peak gain and radiation patterns in both E- and H-plane validate potential of the design.

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