Bluetooth is a wireless technology that allows short-range connections between various electronic devices such as phones, computers, headphones, and more. It was created in 1994 by Ericsson to replace wired connections like cables between mobile phones and accessories. A Bluetooth network consists of a master device connected to multiple slave devices in a piconet structure, and multiple piconets can be connected in a scatternet configuration. Common applications of Bluetooth include wireless keyboards, headphones, file transfers between devices, and connecting peripherals to computers without cables.
This document provides an overview of broadband and DSL technology. It discusses how broadband provides high-speed internet access from 256 kbps to several mbps. It then describes ADSL technology, how it works by splitting bandwidth on copper telephone lines into channels for upstream, downstream, and voice. The document outlines the various components used in broadband networks like DSLAMs, BRAS, CPE, and discusses how they connect and function. It also lists some services that can be accessed through broadband like video and audio on demand. In closing, it mentions how broadband can help bridge the digital divide and strengthen education through improved internet access.
Bluetooth is a low-cost, short-range wireless technology with
small footprint, small power consumption, reasonable
throughput and hence suitable for various small, batterydriven devices like mobile phones, PDAs, cameras, laptops
etc. Development of the Bluetooth started several years ago
with the intention to replace all sorts of cables used to
connect different devices. In meantime the idea has evolved
and Bluetooth is now developing not just as a point-to-point,
but as a network technology as well.
Bluetooth has gone through periods of big hype when it was
considered as the best short-range technology as well as
through periods when it was considered a failure. However,
the last year could be seen as the turning point year for
Bluetooth. A lot of various Bluetooth devices and accessories
appeared on the market, broad range of users is able to use it
and first experiences are generally positive. The main
challenge in front of Bluetooth developers now is to prove
interoperability between different manufacturers’ devices and
to provide numerous interesting applications. An example of
such applications are wireless sensor networks.
Bluetooth operates in the 2.4GHz frequency band and uses
frequency hopping spread spectrum technique. There are 79
channels, each 1MHz wide, available for hopping.
A Bluetooth device has to be member of a piconet to be able
to communicate with other devices. A piconet is a collection
of up to 8 devices that frequency hop together. Each piconet
has one master, usually the device that initiated establishment
of the piconet, and up to 7 slave devices. Master’s Bluetooth
address is used for definition of the frequency hopping
sequence. Slave devices use the master’s clock to
synchronize their clocks to be able to hop simultaneously.
Wireless sensor networks are an interesting research area
with many possible applications. They are based on
collaborative effort of many small devices capable of
communicating and processing data. There are still many
open issues ranging from the choice of physical and MAC
layer to design of routing and application level protocols.
Bluetooth is a possible choice for data communication in
sensor networks. Good throughput, low-power, low-cost,
standardized specification and hardware availability are
Bluetooth advantages, while slow connection establishment
and lack of scatternet support are some of the deficiencies.
An initial implementation of a Bluetooth based sensor
network platform is presented. Implemented functionality and
various problems experienced during the implementation are
described. Implemented platform presents a good
environment for further research and development of sensor
network protocols and algorithms.
BSNL is India's largest telecommunication company, providing basic telephony and 3G services. The document discusses BSNL's history and network infrastructure, including how calls are routed through exchanges and technologies like PCM, GSM, broadband, WiMAX, and optical fibers. It describes the components and functions of telecom exchanges, switches, and transmission systems that enable telecommunication services.
Bluetooth technology was introduced in 1998 as a wireless replacement for wired connections to transfer voice and data rapidly between devices over short distances. It allows for automatic recognition and connection of devices like laptops, phones, headsets and printers. While Bluetooth provides convenient wireless connectivity with low power usage, it has some limitations regarding security, file size and distance between devices. Ongoing development by the Bluetooth Special Interest Group aims to increase transfer speeds, connection strength and operating distances for Bluetooth over time.
This document provides an overview of Bluetooth technology. It discusses that Bluetooth allows for short-range wireless connectivity between devices. A key point is that up to 8 devices can be connected in a piconet within a 10 meter range. The document outlines the characteristics of Bluetooth, including that it uses frequency hopping for security and devices do not need line-of-sight. Advantages include no line-of-sight needed and worldwide compatibility, while disadvantages include potential increased battery usage and slow internet speeds over Bluetooth. The document also provides details on Bluetooth architecture and versions.
Wireless communication is the transfer of information between two or more points not connected by an electrical conductor, most commonly using radio technologies. The document outlines the history of early wireless experiments in the 1870s and types of modern wireless communication including satellite, radio, internet, infrared, Bluetooth, mobile systems, and Wi-Fi. Advantages include flexibility, ease of use, planning and durability while disadvantages involve compatibility, Ethernet and weak signals. In conclusion, wireless connectivity has made communication faster, easier and more convenient by eliminating wires over long distances.
Bluetooth is a wireless technology that allows short-range connections between various electronic devices such as phones, computers, headphones, and more. It was created in 1994 by Ericsson to replace wired connections like cables between mobile phones and accessories. A Bluetooth network consists of a master device connected to multiple slave devices in a piconet structure, and multiple piconets can be connected in a scatternet configuration. Common applications of Bluetooth include wireless keyboards, headphones, file transfers between devices, and connecting peripherals to computers without cables.
This document provides an overview of broadband and DSL technology. It discusses how broadband provides high-speed internet access from 256 kbps to several mbps. It then describes ADSL technology, how it works by splitting bandwidth on copper telephone lines into channels for upstream, downstream, and voice. The document outlines the various components used in broadband networks like DSLAMs, BRAS, CPE, and discusses how they connect and function. It also lists some services that can be accessed through broadband like video and audio on demand. In closing, it mentions how broadband can help bridge the digital divide and strengthen education through improved internet access.
Bluetooth is a low-cost, short-range wireless technology with
small footprint, small power consumption, reasonable
throughput and hence suitable for various small, batterydriven devices like mobile phones, PDAs, cameras, laptops
etc. Development of the Bluetooth started several years ago
with the intention to replace all sorts of cables used to
connect different devices. In meantime the idea has evolved
and Bluetooth is now developing not just as a point-to-point,
but as a network technology as well.
Bluetooth has gone through periods of big hype when it was
considered as the best short-range technology as well as
through periods when it was considered a failure. However,
the last year could be seen as the turning point year for
Bluetooth. A lot of various Bluetooth devices and accessories
appeared on the market, broad range of users is able to use it
and first experiences are generally positive. The main
challenge in front of Bluetooth developers now is to prove
interoperability between different manufacturers’ devices and
to provide numerous interesting applications. An example of
such applications are wireless sensor networks.
Bluetooth operates in the 2.4GHz frequency band and uses
frequency hopping spread spectrum technique. There are 79
channels, each 1MHz wide, available for hopping.
A Bluetooth device has to be member of a piconet to be able
to communicate with other devices. A piconet is a collection
of up to 8 devices that frequency hop together. Each piconet
has one master, usually the device that initiated establishment
of the piconet, and up to 7 slave devices. Master’s Bluetooth
address is used for definition of the frequency hopping
sequence. Slave devices use the master’s clock to
synchronize their clocks to be able to hop simultaneously.
Wireless sensor networks are an interesting research area
with many possible applications. They are based on
collaborative effort of many small devices capable of
communicating and processing data. There are still many
open issues ranging from the choice of physical and MAC
layer to design of routing and application level protocols.
Bluetooth is a possible choice for data communication in
sensor networks. Good throughput, low-power, low-cost,
standardized specification and hardware availability are
Bluetooth advantages, while slow connection establishment
and lack of scatternet support are some of the deficiencies.
An initial implementation of a Bluetooth based sensor
network platform is presented. Implemented functionality and
various problems experienced during the implementation are
described. Implemented platform presents a good
environment for further research and development of sensor
network protocols and algorithms.
BSNL is India's largest telecommunication company, providing basic telephony and 3G services. The document discusses BSNL's history and network infrastructure, including how calls are routed through exchanges and technologies like PCM, GSM, broadband, WiMAX, and optical fibers. It describes the components and functions of telecom exchanges, switches, and transmission systems that enable telecommunication services.
Bluetooth technology was introduced in 1998 as a wireless replacement for wired connections to transfer voice and data rapidly between devices over short distances. It allows for automatic recognition and connection of devices like laptops, phones, headsets and printers. While Bluetooth provides convenient wireless connectivity with low power usage, it has some limitations regarding security, file size and distance between devices. Ongoing development by the Bluetooth Special Interest Group aims to increase transfer speeds, connection strength and operating distances for Bluetooth over time.
This document provides an overview of Bluetooth technology. It discusses that Bluetooth allows for short-range wireless connectivity between devices. A key point is that up to 8 devices can be connected in a piconet within a 10 meter range. The document outlines the characteristics of Bluetooth, including that it uses frequency hopping for security and devices do not need line-of-sight. Advantages include no line-of-sight needed and worldwide compatibility, while disadvantages include potential increased battery usage and slow internet speeds over Bluetooth. The document also provides details on Bluetooth architecture and versions.
Wireless communication is the transfer of information between two or more points not connected by an electrical conductor, most commonly using radio technologies. The document outlines the history of early wireless experiments in the 1870s and types of modern wireless communication including satellite, radio, internet, infrared, Bluetooth, mobile systems, and Wi-Fi. Advantages include flexibility, ease of use, planning and durability while disadvantages involve compatibility, Ethernet and weak signals. In conclusion, wireless connectivity has made communication faster, easier and more convenient by eliminating wires over long distances.
The document discusses 5G and 6G mobile technologies. It provides an overview of the evolution from 1G to 5G networks, describing some key 5G technologies like millimeter wave, small cells, massive MIMO, and beamforming. It then introduces 6G, explaining that 6G networks are expected to utilize terahertz bands and technologies like AI, optical wireless communication, and 3D networking. Some advantages of 6G mentioned include extremely high speeds, low latency, improved security and personalization, and enabling new applications like connected robotics.
This presentation provides an brief introduction about Bluetooth Low Energy. This also covers the basic protocol layers of bluetooth low energy. Also discusses about the ble device discovery, service discovery, connection establishment, connection termination, etc.
Wireless communication technologies have advanced significantly. Bluetooth allows short-range transmission of data at speeds up to 1Mbps. Near Field Communication (NFC) enables data transfer by touching devices together at ranges under 4cm. Wi-Fi provides wireless internet access at speeds up to 1Gbps. GPS uses satellites to precisely locate users on Earth. Radar uses radio waves to detect objects. Cordless phones and mobiles introduced wireless voice calls. 1G provided analog signals up to 2.4kbps while 2G offered digital and SMS up to 64kbps. 3G increased speeds to 2Mbps and 4G to 1Gbps. Future technologies include 5G with speeds over 1Gbps, 6G over 100Gbps
2.4 GHz Open band
Globally available
Other devices include microwave ovens, cordless phones
Frequency hopping and Time Division Multiplexing
10 – 100 meter range
Up to 8 active devices can be in the same piconet
Bluetooth is a wireless technology developed in 1994 that allows electronic devices such as computers, phones, and other home appliances to connect without wires. It uses short-range radio transmissions to communicate and establish connections between devices within about 30 feet of each other. Bluetooth aims to eliminate cable clutter and enable easy data transfer and synchronization between devices. While it faces some security issues, Bluetooth's ability to connect devices wirelessly positions it to become widely adopted in homes and businesses.
1) The document discusses the installation and commissioning of a Nokia Flexi EDGE BTS. It provides an overview of the GSM system and BTS functions.
2) It describes the various components of the Nokia Flexi EDGE BTS including the EDGE System Module (ESMA), Dual TRX Module (EXxA), Dual Duplexer Module (ERxA), and Wideband Combiner (EWxA).
3) The commissioning process involves 12 steps like hardware installation, software configuration, RF parameter checks, traffic tests and O&M integration to activate the BTS in the live network.
Bluetooth technology allows for wireless connections between various devices like phones, computers, and other electronics. The document discusses Bluetooth's history, specifications, security features and weaknesses. It provides technical details on how Bluetooth works, including defining piconets and scatternets, frequency hopping, encryption, and authentication processes. However, Bluetooth security has some vulnerabilities like short PINs, attacks on its encryption algorithms, and lack of location privacy.
UMTS (Universal Mobile Telecommunications System) is a 3G mobile communication system that offers high quality wireless multimedia services. It delivers information directly to users and provides access to new services and applications regardless of location, network, or terminal used. The UMTS architecture separates the core network from the radio access network. A UMTS mobile station can operate in PS/CS mode for simultaneous services, PS-only mode, or CS-only mode. UMTS has gone through several releases to support features like HSDPA and all-IP networking.
Digital transformation is at a critical juncture, with a diverse range of industries making changes that signifi-
cantly transform the way people live and work. These shifts have been driving advancements in the financial,
transportation, manufacturing, governmental, and many more sectors. Innovative mobile broadband technologies,
an underlying infrastructure, are a key driving force behind the digitalization of all walks of life. With
the rapid development of 5G, an increasing number of new applications and business models will reshape
the social and economic formation.
Such changes will stimulate strategic planning regarding industry opportunities, technical evolution,
network architecture, and other areas. Telecom operators are growing increasingly concerned with the
creation of a new target network to maximize return on investment (ROI) and achieve business success while
maintaining a competitive edge for the future. Global operators are promoting early deployment of 5G and
innovative business models through continuous 4G evolution. This has led to today's business achievements
and has laid a solid foundation for the huge potential of 5G.
With a gradual consensus being formed for the entire industry, all related players in the industry chain will
develop close collaboration to embrace a brighter future for the wireless network industry.
Continuous 4G evolution, a road to 5G!
This document proposes using street lights to transmit communication signals over low voltage power line networks. It discusses integrating power line communication (PLC) with future networks using PLC modems and couplers. The objectives are to design a circuit connecting LED visible light communication and PLC to control information to moving cars. Challenges include high attenuation, noise, and limited data rates over low voltage power lines. The proposed solution is to use spread frequency shift keying modulation for PLC and modulate white LEDs for visible light signals. Results show a PLC signal passing through a modem and coupler. The document seeks to optimize PLC network design and apply encoding to achieve high data rates with reduced noise for mobile reception.
It includes versions of Bluetooth, how Bluetooth works, Bluetooth profile, Bluetooth core architecture, power classes of Bluetooth, Bluetooth protocol, advantages and applications of Bluetooth.
Wireless USB products are finally arriving at the market and in this article you will learn more about this technology and see some usage examples. The goals of wireless USB is to connect peripherals such as printers, externals hard disk drives, sound cards, media players and even video monitors to the PC wirelessly. This can be done by to forms.
If the PC and the device don’t have native support to WUSB, you must install a dongle to convert are standard USB ports in to WUSB.
The maximum theoretical transfer rate from WUSB in this same as USB 2.0:480mpbs if the device is within 3 meters from the PC or 110mpbs from the PC. As you can see, the more distant the devices are from the PC, lower is the transfer rate.
Bluetooth is another wireless technology that allows the connection between the PC and peripherals without wires. At this time, however, Bluetooth is targeted to low speed devices only, as its maximum transfer rate is of 1 Mpbs (128 kb\s) or 3Mpbs (384MB\s), depending on the Bluetooth generation.
The next Bluetooth generation is scheduled to have the same transfer rate as WUSB, but this technology is not yet available. Wireless USB works on the UWB frequency range, while Bluetooth technology works on 2.4GHz frequency, the same use by IEEE 802.11 wireless network.
The document discusses wireless communication systems. It begins with an introduction and overview of how wireless communication works. It then presents the block diagram of a wireless communication system and describes different types of wireless multiple access techniques including FDMA, TDMA, and CDMA. The document also discusses the evolution of cellular networks, layers in wireless communication, applications of wireless communication such as radio, TV and satellites, and concludes by noting that wireless communication globally is advancing and bringing many benefits but also some concerns.
This document is a seminar report submitted by Rajan Meena to fulfill requirements for a Bachelor of Technology degree from Rajasthan Technical University. The report summarizes Rajan's 28-day training with Bharat Sanchar Nigam Limited (BSNL), India's state-owned telecommunications company. The report provides an overview of BSNL's role in India's telecommunications sector and describes key components of BSNL's basic telecommunications network, including call setup, electronic exchanges, carrier rooms, main distribution frames, and power plants. It also covers topics taught during the training like leased lines, intranets, corporate networks, Wi-Fi, WiMAX, and GSM.
This project report describes the development of a cellphone RF signal detector and jammer. The system uses a microcontroller to control a jammer and detector circuit. The jammer blocks cellphone signals within a defined range when activated, and the detector can sense activated cellphones from 1.5 meters away. The report includes the block diagram of the system, descriptions of the components, literature on jamming techniques and design parameters, schematics of the jammer and detector circuits, software used in development, and applications of the technology.
Bluetooth Low Energy (BLE) or Bluetooth Smart is the low energy version of Bluetooth and integrated into the Bluetooth standard v4.0. The presentation briefs about the BLE and its architecture.
Presented at Robert Bosch Centre for Cyber Physical Systems at Indian Institute of Science, Bengaluru
Bluetooth based smart sensor devices 2Vijay Kribpz
This document discusses Bluetooth-based smart sensor devices. It begins with an abstract and introduction to Bluetooth technology, defining it as a short-range wireless standard. It then covers Bluetooth operations, topologies of piconets and scatternets, and how Bluetooth works. The document discusses using sensors with Bluetooth, including examples like pressure sensors. It describes building Bluetooth-based wireless sensor networks and addressing Bluetooth security. It outlines characteristics and applications of Bluetooth technology, as well as advantages and disadvantages. The conclusion envisions future expansion of Bluetooth applications.
This document discusses cognitive radio in 5G networks. It begins with describing the evolution of mobile standards from 1G to 4G. It then introduces the concepts of 5G and cognitive radio. The key points are:
- 5G will provide very high data rates up to 1 Gbps and connect many more devices.
- Cognitive radio can improve spectrum efficiency by allowing unlicensed users to access licensed spectrum holes.
- The document proposes a cognitive radio based 5G network that can integrate various wireless technologies and help manage network complexity using cognitive radio's abilities.
The document discusses 5G and 6G mobile technologies. It provides an overview of the evolution from 1G to 5G networks, describing some key 5G technologies like millimeter wave, small cells, massive MIMO, and beamforming. It then introduces 6G, explaining that 6G networks are expected to utilize terahertz bands and technologies like AI, optical wireless communication, and 3D networking. Some advantages of 6G mentioned include extremely high speeds, low latency, improved security and personalization, and enabling new applications like connected robotics.
This presentation provides an brief introduction about Bluetooth Low Energy. This also covers the basic protocol layers of bluetooth low energy. Also discusses about the ble device discovery, service discovery, connection establishment, connection termination, etc.
Wireless communication technologies have advanced significantly. Bluetooth allows short-range transmission of data at speeds up to 1Mbps. Near Field Communication (NFC) enables data transfer by touching devices together at ranges under 4cm. Wi-Fi provides wireless internet access at speeds up to 1Gbps. GPS uses satellites to precisely locate users on Earth. Radar uses radio waves to detect objects. Cordless phones and mobiles introduced wireless voice calls. 1G provided analog signals up to 2.4kbps while 2G offered digital and SMS up to 64kbps. 3G increased speeds to 2Mbps and 4G to 1Gbps. Future technologies include 5G with speeds over 1Gbps, 6G over 100Gbps
2.4 GHz Open band
Globally available
Other devices include microwave ovens, cordless phones
Frequency hopping and Time Division Multiplexing
10 – 100 meter range
Up to 8 active devices can be in the same piconet
Bluetooth is a wireless technology developed in 1994 that allows electronic devices such as computers, phones, and other home appliances to connect without wires. It uses short-range radio transmissions to communicate and establish connections between devices within about 30 feet of each other. Bluetooth aims to eliminate cable clutter and enable easy data transfer and synchronization between devices. While it faces some security issues, Bluetooth's ability to connect devices wirelessly positions it to become widely adopted in homes and businesses.
1) The document discusses the installation and commissioning of a Nokia Flexi EDGE BTS. It provides an overview of the GSM system and BTS functions.
2) It describes the various components of the Nokia Flexi EDGE BTS including the EDGE System Module (ESMA), Dual TRX Module (EXxA), Dual Duplexer Module (ERxA), and Wideband Combiner (EWxA).
3) The commissioning process involves 12 steps like hardware installation, software configuration, RF parameter checks, traffic tests and O&M integration to activate the BTS in the live network.
Bluetooth technology allows for wireless connections between various devices like phones, computers, and other electronics. The document discusses Bluetooth's history, specifications, security features and weaknesses. It provides technical details on how Bluetooth works, including defining piconets and scatternets, frequency hopping, encryption, and authentication processes. However, Bluetooth security has some vulnerabilities like short PINs, attacks on its encryption algorithms, and lack of location privacy.
UMTS (Universal Mobile Telecommunications System) is a 3G mobile communication system that offers high quality wireless multimedia services. It delivers information directly to users and provides access to new services and applications regardless of location, network, or terminal used. The UMTS architecture separates the core network from the radio access network. A UMTS mobile station can operate in PS/CS mode for simultaneous services, PS-only mode, or CS-only mode. UMTS has gone through several releases to support features like HSDPA and all-IP networking.
Digital transformation is at a critical juncture, with a diverse range of industries making changes that signifi-
cantly transform the way people live and work. These shifts have been driving advancements in the financial,
transportation, manufacturing, governmental, and many more sectors. Innovative mobile broadband technologies,
an underlying infrastructure, are a key driving force behind the digitalization of all walks of life. With
the rapid development of 5G, an increasing number of new applications and business models will reshape
the social and economic formation.
Such changes will stimulate strategic planning regarding industry opportunities, technical evolution,
network architecture, and other areas. Telecom operators are growing increasingly concerned with the
creation of a new target network to maximize return on investment (ROI) and achieve business success while
maintaining a competitive edge for the future. Global operators are promoting early deployment of 5G and
innovative business models through continuous 4G evolution. This has led to today's business achievements
and has laid a solid foundation for the huge potential of 5G.
With a gradual consensus being formed for the entire industry, all related players in the industry chain will
develop close collaboration to embrace a brighter future for the wireless network industry.
Continuous 4G evolution, a road to 5G!
This document proposes using street lights to transmit communication signals over low voltage power line networks. It discusses integrating power line communication (PLC) with future networks using PLC modems and couplers. The objectives are to design a circuit connecting LED visible light communication and PLC to control information to moving cars. Challenges include high attenuation, noise, and limited data rates over low voltage power lines. The proposed solution is to use spread frequency shift keying modulation for PLC and modulate white LEDs for visible light signals. Results show a PLC signal passing through a modem and coupler. The document seeks to optimize PLC network design and apply encoding to achieve high data rates with reduced noise for mobile reception.
It includes versions of Bluetooth, how Bluetooth works, Bluetooth profile, Bluetooth core architecture, power classes of Bluetooth, Bluetooth protocol, advantages and applications of Bluetooth.
Wireless USB products are finally arriving at the market and in this article you will learn more about this technology and see some usage examples. The goals of wireless USB is to connect peripherals such as printers, externals hard disk drives, sound cards, media players and even video monitors to the PC wirelessly. This can be done by to forms.
If the PC and the device don’t have native support to WUSB, you must install a dongle to convert are standard USB ports in to WUSB.
The maximum theoretical transfer rate from WUSB in this same as USB 2.0:480mpbs if the device is within 3 meters from the PC or 110mpbs from the PC. As you can see, the more distant the devices are from the PC, lower is the transfer rate.
Bluetooth is another wireless technology that allows the connection between the PC and peripherals without wires. At this time, however, Bluetooth is targeted to low speed devices only, as its maximum transfer rate is of 1 Mpbs (128 kb\s) or 3Mpbs (384MB\s), depending on the Bluetooth generation.
The next Bluetooth generation is scheduled to have the same transfer rate as WUSB, but this technology is not yet available. Wireless USB works on the UWB frequency range, while Bluetooth technology works on 2.4GHz frequency, the same use by IEEE 802.11 wireless network.
The document discusses wireless communication systems. It begins with an introduction and overview of how wireless communication works. It then presents the block diagram of a wireless communication system and describes different types of wireless multiple access techniques including FDMA, TDMA, and CDMA. The document also discusses the evolution of cellular networks, layers in wireless communication, applications of wireless communication such as radio, TV and satellites, and concludes by noting that wireless communication globally is advancing and bringing many benefits but also some concerns.
This document is a seminar report submitted by Rajan Meena to fulfill requirements for a Bachelor of Technology degree from Rajasthan Technical University. The report summarizes Rajan's 28-day training with Bharat Sanchar Nigam Limited (BSNL), India's state-owned telecommunications company. The report provides an overview of BSNL's role in India's telecommunications sector and describes key components of BSNL's basic telecommunications network, including call setup, electronic exchanges, carrier rooms, main distribution frames, and power plants. It also covers topics taught during the training like leased lines, intranets, corporate networks, Wi-Fi, WiMAX, and GSM.
This project report describes the development of a cellphone RF signal detector and jammer. The system uses a microcontroller to control a jammer and detector circuit. The jammer blocks cellphone signals within a defined range when activated, and the detector can sense activated cellphones from 1.5 meters away. The report includes the block diagram of the system, descriptions of the components, literature on jamming techniques and design parameters, schematics of the jammer and detector circuits, software used in development, and applications of the technology.
Bluetooth Low Energy (BLE) or Bluetooth Smart is the low energy version of Bluetooth and integrated into the Bluetooth standard v4.0. The presentation briefs about the BLE and its architecture.
Presented at Robert Bosch Centre for Cyber Physical Systems at Indian Institute of Science, Bengaluru
Bluetooth based smart sensor devices 2Vijay Kribpz
This document discusses Bluetooth-based smart sensor devices. It begins with an abstract and introduction to Bluetooth technology, defining it as a short-range wireless standard. It then covers Bluetooth operations, topologies of piconets and scatternets, and how Bluetooth works. The document discusses using sensors with Bluetooth, including examples like pressure sensors. It describes building Bluetooth-based wireless sensor networks and addressing Bluetooth security. It outlines characteristics and applications of Bluetooth technology, as well as advantages and disadvantages. The conclusion envisions future expansion of Bluetooth applications.
This document discusses cognitive radio in 5G networks. It begins with describing the evolution of mobile standards from 1G to 4G. It then introduces the concepts of 5G and cognitive radio. The key points are:
- 5G will provide very high data rates up to 1 Gbps and connect many more devices.
- Cognitive radio can improve spectrum efficiency by allowing unlicensed users to access licensed spectrum holes.
- The document proposes a cognitive radio based 5G network that can integrate various wireless technologies and help manage network complexity using cognitive radio's abilities.
Optical networks use fiber cabling to transmit communication signals using light over long distances. Fiber is made of glass or plastic and guides light through the core and cladding. Optical networks are advantageous because they can handle increasing internet traffic better than traditional networks as fiber bandwidth increases exponentially. Optical networks also reduce transmission costs, enable new applications by pushing optics to network edges, and allow multiple terabits per second to be transmitted through a single cable using wavelength division multiplexing. Some key benefits of optical networks include low power loss over long distances, immunity to electromagnetic interference, lower weight and space needs compared to copper, high security, and suitability for digital signals.
Security in Optical Networks - Useless or Necessary?ADVA
The document discusses security in optical networks. It notes that broadband access network markets are seeing increasing data rates and new video services that require scalable and secure network architectures. Fiber optic networks can be accessed in multiple ways through splicing boxes, street cabinets, or fiber tapping, so physical protection and data encryption are essential for network security. The document outlines various optical network security tools and methods available, including encryption, intrusion detection, authentication, and physical layer monitoring.
The document discusses security issues in networks and distributed systems. It describes possible network security threats like wiretapping, impersonation, message integrity violations, hacking, and denial of service attacks. It also discusses network security controls like encryption and authentication methods. Specifically, it covers Kerberos, PEM, and PGP for authentication and encryption. It describes different types of firewalls - screening routers, proxy gateways, and guards - and their functions in securing networks. However, it notes that firewalls are not complete solutions and have their own security issues.
Bluetooth is a wireless technology standard for exchanging data over short distances using short-wavelength UHF radio waves in the industrial, scientific and medical radio bands. It was created in 1994 by Ericsson to replace cables connecting devices like mobile phones, laptops, printers, and other electronic devices. Bluetooth allows for wireless connections between various devices to share information and transmit data wirelessly over short distances of around 10 meters. It uses a radio technology called frequency-hopping spread spectrum to handle interference and improve communication quality.
Her gün değişen kullanıcılara internet hizmeti mi sunuyorsunuz? 5651 sayılı yasa ile sistemdeki kullanıcılarınızın kullanım kayıtlarını veya IP atamalarını tutmanız mı gerekiyor?
Yasanın tüm gerektirdiklerini karşılayan, yönetimi kolay ve özelleştirilebilir bir loglama sistemi sunuyoruz.
Secure WLAN Teknolojisi
Otel, hastane, iş merkezi, misafirhane, restaurant, okul, kampüs gibi ortak internetin kullanıldığı alanlarda, illegal internet kullanımının engellenmesi ve takip edilmesi adına yürürlüğe giren 5651 yasası, ortak internet kullanımı sunan tüm işletme sahiplerine, sistemleri üzerinden internetten faydalanan tüm kullanıcılar için raporlama yapabilen bir internet kullanım geçmişi tutmalarını zorunlu hale getiriyor.
Bu yasa ile, tüm kullanıcıların internet erişimleri ve ziyaret ettikleri sayfalar bir donanım ve yazılım kombinasyonu ile takip edilmek ve kayıt altına alınmak zorunda olacak.
Cenetric olarak, geleceği önceden gören ekibimizle oluşturduğumuz çözümde, kullanıcılarınızın web erişimlerini düzenleyen ve kontrol altında tutan loglama sistemini, efektif video, ses ve data paylaşımına olanak sağlayan tek bir cihaz üzerinden sunuyoruz.
Temel Özellikler
Sunduğumuz merkezi kontrol sistemi ve hotspot çözümü özellikle kurumsal sektörde otel, restoran, kampüs ve havalimanı terminalleri gibi müşteri, misafir ve çalışanları na internet erişimi sunan işletmeler için özelleştirilmiş bir sistemdir.
Serbest Dolaşım (Roaming)
IAPP (Internet Access Point Protocol), bağlı olan kullanıcılarınızın access pointler arasında serbest dolaşımına izin verir.
Akıllı Ağ Yönetimi
Sunduğumuz EAP protokollü CAPWAP (Control and Provisioning of Wireless Access Points) hizmeti ile, varsayılan ağlarda bağlı olan access point cihazları tespit edilerek her birinin IP adresleri ağda tanımlandığı şekilde, otomatik olarak değiştirilir. Üstelik tüm yarlar web arayüzü veya SNMP protokolü üzerinden yapılabilir.
Guruplar ve Servis Kalitesi
Oluşturulan sınıflar ile sınıflandırılmış veya kategorize edilmiş erişim hizmetleri sunabilirsiniz. 8 adet gurup seçeneği, en efektif şekilde gurup ve erişim kategorileri belirlemenize olanak sağlar.
Bunun dışında, sistem içerisinde 4 ana kategori altında (video, ses, arka plan ve performans) sınıflandırma ve ölçeklendirme yapılabilir. Her bir gurup, kendisine bağlı olan erişim alanı ile tanımlanır; iyi belirlenmiş kurallar ile her bir erişim alanı guruba belirlenmiş kurallar çerçevesinde erişim sunar. Örneğin, VoIP olarak isimlendirilen bir gurup, kendisine ait olarak belirlenmiş access point cihazlarının bulunduğu alan içerisinde yine önceden saptanmış WiFi telefonlarını yönetebilir.
Firewall ve Kurallar
Firewall'da tanımlanmış güvenlik dereceleri, hiyerarşik olarak "en düş
Ağ donanımları nelerdir?
Kablosuz ağ ve güvenliği hakkında yapılması gerekenler nelerdir?
İnternet Ortamında kişilik hakları ihlali nedir? 5651 Sayılı Kanun nedir ve bu konuda sağladığı haklar nelerdir?
Ping, SSL, DNS, HOST, Routher, TCP/IP Protokolleri, OSI ve TCP/IP farkı, Creative Commons Lisansı, WAN nedir?
The document discusses weaknesses in the TCP/IP protocol suite and solutions to address those weaknesses. It outlines security issues with IP, such as a lack of authentication, encryption, and traffic prioritization. Common attacks like spoofing, sniffing, and denial of service are described. Solutions proposed include using IPv6, IPSec, firewalls, and intrusion detection to authenticate devices, encrypt traffic, and monitor networks for attacks.
2. Akış-1
Bluetooth Teknolojisi
Bluetooth nedir?
Bluetooth Kullanım Alanları
Bluetooth Sistemi Yapısı
Gelişimi
Bluetooth Özellikleri
Verici Karakteristiği
Bluetooth Şebeke Yapısı
Piconet
Scatternet
Ses ve Veri İletimi
OSI – BLUETOOTH karşılaştırması
Bluetooth Güvenliği - 2007
3. Akış-2
Bluetooth Güvenliği
Güvenlik mimarisi
Güvenlik yöneticisi
Kimlik doğrulama ve şifreleme yordamlarında kullanılan
öğeler
BD_ADDR
Kimlik doğrulama için gizli anahtar(Bağ anahtarı)
Şifreleme için gizli anahtar
RAND
Kullanılacak Algoritmalar
Anahtarların üretilmesi ve ilklendirme yordamı
İlklendirme anahtarının(KİNİT), Bağ anahtarının(K)
üretilmesi,değişimi
Kimlik doğrulama
Şifreleme anahtarının (KC) üretilmesi
Şifreleme
Bluetooth Güvenliği - 2007
4. Akış-3
Bluetooth Güvenliği(…)
Güvenlik Açıkları
Bluejacking
Bluebugging
Bluesnarfing
Cabir virüsü
Car Whisperer
Anahtarların güvenilirsizliği
Safer+ algoritması yetersizliği
Aradaki adam problemi
Tekrarlama saldırısı
Hizmet engelleme saldırısı
Bluetooth güvenliği artırmaya yönelik ipuçları
Bluetooth 2.1 geliyor
Bluetooth Güvenliği - 2007
5. Bluetooth nedir?
Bluetooth kablosuz
teknolojisi, hareketli veya
sabit elektronik cihazların
birbirleriyle iletişimi için
gerekli kablo bağlantısını
ortadan kaldırmak
amacıyla geliştirilmiş,
kısa-mesafeli radyo
frekansı(RF) teknolojisini
kullanan bir iletişim
sistemidir.
Bluetooth Güvenliği - 2007
8. Gelişimi
Adını, 10.yüzyılda Danimarka ve Norveç'i birleştiren
Harald Blatand (İngilizce okunuşu Bluetooth)
ismindeki bir Danimarka Kral’ından almıştır.
Bluetooth projesi ise ilk olarak, 1994 yılında
Ericsson’un bu alandaki standartların yaygınlaşması
için, diğer iletişim ve bilişim firmalarını(3Com ,
Nokia, Toshiba, IBM ve Intel), Bluetooth’a dahil
olmaları için teşvik etti.
1998 yılı Mayıs ayında Bluetooth SIG(Special
Interest Group) adında bir endüstri platformu
oluşturularak, bu projenin kapsamı genişletilir.
Bluetooth Güvenliği - 2007
9. Gelişimi(…)
SIG 'in çalışmaları;
Bluetooth spesifikasyonunun geliştirilmesi
Birlikte çalışabilirlik gereksinimleri sağlamak
Teknolojinin kitlelere tanıtılması
1999 - Temmuz ayında ilk Bluetooth belirtimi yayınlandı.
(Bluetooth Version 1.0)
2000 - IEEE 802.15 standardı oldu.
2002 - IEEE Standardı olarak 802.15.1-2002 adıyla tüm
dünyaya duyuruldu
2003 - Bluetooth için Uyarlanabilen Frekans Hoplama
Tekniği geliştirildi. .(Bluetooth Version 1.2)
2004 – V2.0+EDR ….
Bluetooth Güvenliği - 2007
10. Bluetooth Özellikleri
En önemli özellikleri;
Düşük maliyet
Düşük güç tüketimi
Kararlı ses ve veri haberleşmesi sağlaması
Açık standart yapısı
Tüm dünyada uyumlu olması
Bluetooth Güvenliği - 2007
11. Bluetooth Özellikleri(…)
Fiziksel katmanı 2,4GHz. deki lisanssız ISM bandında
çalışır.
İletişim frekans atlama mekanizması(FHSS) ile
sağlanır.
Daha güvenilir ve daha etkili bir haberleşme
sağlar.
1 MHz’lik aralıklara ayrılmış 79 frekans atlaması
sayesinde frekans spektrumu genişletilir.
Saniyede ortalama 1600 atlamaya izin veren full-
duplex sinyal iletişim tekniği kullanılır
720 kbps e kadar veri iletim hızına sahiptir.
Bluetooth Güvenliği - 2007
12. Verici Karakteristiği
Verici anten çıkışındaki güçler baz alındığında,
Bluetooth cihazlarını üç sınıfa ayırmak mümkündür.
Bluetooth Güvenliği - 2007
14. Piconet
Bluetooth sistemi hem noktadan noktaya, hem de noktadan çoklu
noktaya bağlantı imkanı sağlar.
Master-Slave Yapısı
Tipik bir Bluetooth iletişimi sırasında fiziksel radyo kanalı,
ortak saat ve frekans sıçrama örüntüsünde eşzamanlı olarak
çalışan bir grup cihaz tarafından paylaşılır. Bu eşzamanlılığı
ana (master) olarak tanımlanan cihaz sağlar. Diğer cihazlar
ise bağımlı (slave) olarak tanımlanır.
Frekans Atlamalı (Frequency Hopping Spread Spectrum)
İletişim sırasında piconet içerisindeki cihazlar, ISM bandındaki
79 frekansa, özel frekans sıçrama örüntüsü sayesinde sözde-
rastlantısal bir sırayla atlarlar. Bu örüntü, iletişimin başında,
ana cihazın saati ve cihaz adresi kullanılarak üretilir. Aynı
zamanda bu frekans sıçrama örüntüsü, girişime neden olan
başka cihazların kullanıldığı frekansları çıkararak, kendini yeni
ortama adapte edilebilecek şekilde de dizayn edilmiştir.
Zaman bölmeli çoğullama yönetimi
İletişim, fiziksel kanal üzerinde ayrılan belli zaman dilimleri
üzerinden yapılır. Bluetooth cihazları arasında veri, bu zaman
dilimleri içerisinde konumlandırılmış paketler yoluyla
gönderilir. Zaman bölmeli çoğullama yönetimi kullanılarak da,
cihazlar arasında tam çift yönlü bir iletişim sağlanır.
Bluetooth Güvenliği - 2007
15. Scatternet
Birden fazla piconet’in birbirine bağlanmasıyla oluşan
şebeke yapısıdır.
Bluetooth Güvenliği - 2007
16. Ses ve Veri İletimi
Bluetooth teknolojisi hem zamanın önemli olduğu
veri haberleşmesine, hem de zaman duyarlılığı
olmayan fakat yüksek hızlı paket data
haberleşmesine imkan tanır. Bu verileri taşımak
üzere, cihazlar arasında iki farklı tipte link
tanımlanmıştır.
ses haberleşmesi için eş zamanlı bağlantı hattı
(SCO-Synchronous Connection Oriented)
veri haberleşmesi için eş zamanlı olmayan
bağlantı (ACL- Asynchronous Connectionless)
hattıdır.
Bluetooth Güvenliği - 2007
18. Bluetooth Güvenliği
Kullanıcı koruması ve bilgi gizliliğini sağlayabilmek
için, hem uygulama katmanında (application layer)
hem de bağ katmanında (link layer) güvenlik
önemleri düşünülmüştür.
Bluetooth Güvenliği - 2007
19. Güvenlik mimarisi
Bluetooth Genel Geçiş Profil’i;
Güvenlik modu 1 (güvenli-olmayan)
Cihaz güvenlik ile ilgili hiç bir yordamı işleme sokmaz.
Güvenlik modu 2 (servis seviyesinde uygulanan
güvenlik)
Tüm güvenlik mekanizmaları iki cihaz arasında bağlantı
kurulduktan sonra başlatılır.
Güvenlik modu 3 (bağ katmanı seviyesinde
uygulanan güvenlik):
Cihaz henüz bağlantı kurulmadan önce güvenlik
mekanizmalarını işleme sokar.
Bluetooth Güvenliği - 2007
20. Güvenlik mimarisi(…)
Cihazlar için güvenlik seviyeleri
Güvenli cihaz : Genel olarak daha önceden kalıcı bir bağlantı
kurulup, iletişim yapılmış cihazdır. Uygulama katmanından bazı
sınırlamalar getirilmediği sürece tüm servislere sınırsız olarak giriş
iznine sahiptir.
Güvensiz cihaz : Daha önce sabit ve kalıcı bir bağlantı
kurulamamış veya bir bağlantı kurulsa da, çeşitli nedenlerle
güvensiz olarak kabul edilmiş cihazdır.
Servisler için güvenlik seviyeleri
Hem izin verme, hem de kimlik doğrulama yordamları istenen
servisler. Otomatik geçişe sadece güvenli cihazlar için izin verilir.
Sadece kimlik doğrulama yordamı istenen servisler. İzin verme
yordamına gerek duymazlar.
Tüm cihazlara açık servisler. Ne izin verme, ne de kimlik
doğrulama yordamları işleme koyulur.
Bluetooth Güvenliği - 2007
22. Kimlik doğrulama ve şifreleme
yordamlarında kullanılan öğeler
Bluetooth Güvenliği - 2007
23. BD_ADDR
Bluetooth cihaz adresidir.
Bluetooth’un çalışma kiplerinden sorgu yordamı
yoluyla kolayca öğrenilir.
Bluetooth Güvenliği - 2007
24. Kimlik doğrulama için gizli
anahtar(Bağ anahtarı)
Kimlik doğrulama anahtarı sadece iki cihazın birbirleriyle ilk
iletişime geçmesi aşamasında üretilir. Bu özelliğinden dolayı da
kimlik doğrulama için kullanılan bu anahtar, bağ anahtarı olarak
adlandırılmıştır.
Anahtarın uzunluğu sabit ve 128 bitdir.
Bir kere üretildiğinde, bunu paylaşan Bluetooth cihazları
arasındaki bir çok kimlik doğrulama alt bağlantılarında
değiştirilmeden kullanılabilir.
Bağ anahtarı, yarı kalıcı bir anahtardır. Bluetooth çipinde yer alan
uçucu olmayan bellekte saklanır. Yarı kalıcılığı, istenildiğinde
değiştirilmesinin mümkün olmasından kaynaklanmaktadır
Farklı uygulamalara cevap verebilmek için dört tip bağ anahtarı
tanımlanmıştır.
İlklendirme anahtarı (the initialization key) KİNİT
Birleşim anahtarı (the combination key) KAB
Cihaz anahtarı (the unit key) KA
Geçici anahtar (the temporary key) KMASTER
Bluetooth Güvenliği - 2007
25. Şifreleme için gizli anahtar
Anahtarın uzunluğu 1 ve 16 bayt (8 – 128 bit)
arasında değişir.
Uzunluğu iki nedenden dolayı değişken olarak
düzenlenmiştir
Birincisi, farklı ülkelerde uygulamaya koyulan kriptografi
algoritmaları üzerindeki ihracat düzenlemeleri;
ikincisi de gelecekteki ihtiyaçlar söz konusu olduğunda,
şifreleme algoritmasının hem yazılım hem de donanım olarak
değiştirilmeden kolayca tekrar kullanılabilmesidir.
Kullanılan her algoritması için tekrar
şifreleme
üretilir.
Bluetooth Güvenliği - 2007
26. RAND
RAND ise cihazdaki 128 bitlik rastlantısal işlemler
sonucunda elde edilen sözde rastlantısal bir sayıdır.
iki cihazın haberleşmesi sırasında çok sık değiştirilir.
Bluetooth Güvenliği - 2007
28. Anahtarların üretilmesi ve
ilklendirme yordamı
ilklendirme anahtarının(Kinit) üretilmesi
1.
bağ anahtarının(K) üretilmesi
2.
bağ anahtarının değişimi
3.
kimlik doğrulama
4.
her bir cihaz için şifreleme anahtarının
5.
üretilmesi (isteğe bağlı)
Bluetooth Güvenliği - 2007
37. Güvenlik Açıkları
Bluejacking
Bluebugging
Bluesnarfing
Cabir virüsü
Car Whisperer
Anahtarların güvenilirsizliği
Safer+ algoritması yetersizliği
Aradaki adam problemi
Tekrarlama saldırısı
Hizmet engelleme saldırısı
Bluetooth Güvenliği - 2007
38. Bluejacking
Bluejacking bir kullanıcının menzil dahilindeki başka
bir kullanıcıya isimsiz olarak kartvizit göndermesidir.
Telefonunuzun verilerinde herhangi bir değişiklik
İÇERMEZ. Genellikle kartvizitler mesaj veya fıkradan
oluşurlar ve bluejacker'lar, sadece alıcıdan yaratıcı
bir yanıt beklerler.
Bluejackerların cesaretini kırmak için, basitçe
kartviziti reddedin ya da tamamen kurtulmak için,
telefonunuzu keşfedilemez konumuna ayarlayın.
Bluetooth Güvenliği - 2007
39. Bluesnarfing
Bluesnarfing, yetenekli bir hackerın, kullanıcısının
izni veya bilgisi olmadan cep telefonu üzerindeki
telefon rehberi, resimler, takvim ve EMEI
(Uluslararası Mobil Ekipman Kimliği) gibi verilere
ulaşmasını içerir.
Bluetooth Güvenliği - 2007
40. Bluebugging
Bluebugging, yetenekli bir kişinin, sahibinin bilgisi
veya onayı olmadan bir cep telefonunun komutlarına
ulaşmasını içerir. Bu, hackerın, çağrı yapmasına
veya mesaj göndermesine, takvim veya telefon
rehberini okumasına ve not yazmasına, telefon
konuşmalarını dinlemesine ve İnternete
bağlanmasına imkan verir.
Bluetooth Güvenliği - 2007
41. Cabir virüsü
Cabir virüsü, zararlı kodların bir örneğidir.
Virüs, kullanıcının eklenmiş dosyayı kabul edip
kurması şartıyla telefonu etkiliyor. Bir kez
kurulduktan sonra Bluetooth teknolojisinden
yararlanarak kendini saldırıya açık diğer aygıtlara
gönderiyor. Bu niteliğinden ötürü, Cabir bilgisayar
solucanı kapsamına sokuluyor.
Bu solucan, Symbian 60 platformunu kullanan ve
Bluetooth özelliğine sahip telefonları tehdit ediyor.
Bluetooth Güvenliği - 2007
42. Car Whisperer
Bluetooth destekli araba ses sistemlerinden ses
verisi çalma.
Bluetooth Güvenliği - 2007
43. Anahtarların güvenilirsizliği
Aynı cihaz adını alan kullanıcılar içinde geçerli olup yerine
geçme durumunda yetkisiz erişim ortaya çıkmaktadır.
Giriş anahtar kodunun 1-16 bayt arasında herhangi bir
değer alabilmesi, giriş anahtar kodunun seçiminde zayıf
anahtar üretimi için bir etken oluşturmaktadır.
Kimlik doğrulamasında sadece cihazın kimliği
doğrulanmakta, kullanıcı için herhangi bir kimlik doğrulaması
yapılamamaktadır.
Bluetooth Güvenliği - 2007
44. Safer+ algoritması yetersizliği
Kimlik doğrulama ve tüm anahtarların üretilmesi
aşamasında kullanılan Safer + Bluetooth algoritması,
günümüz şartlarında artık yeterince güvenli
sayılmamaktadır.
Bluetooth Güvenliği - 2007
45. Aradaki Adam Problemi
Açık anahtar algoritması kullanılmadığından aradaki
adam saldırısına karsı savunmasızdır.
Bluetooth Güvenliği - 2007
46. Tekrarlama Saldırısı
79 kanalı birden dinlenirse tekrarlama saldırısı
olabilir.
Bluetooth Güvenliği - 2007
47. Hizmet engelleme saldırısı
Bluetooth hizmeti engelleme saldırılarına karşı bir
önlem alınmamıştır.Bu durum batarya ile çalışan
cihazlar için güvenlik açığı meydana getirmektedir.
Bluetooth Güvenliği - 2007
48. Bluetooth güvenliği artırmaya
yönelik ipuçları
Bluetooth ayarınızı “keşfedilemez” modunda
tutun
(iletim devre dışı bırakılır) ve yalnızca kullandığınız zamanlarda
“keşfedilebilir” moda geçin. Cep telefonunuzu veya PDA’nızı
keşfedilebilir modda bırakmak, aygıtı tehlikeli biçimde Bluetooth
iletimine açık bırakır — yürüyüşe çıktığınız sırada, araba kullanırken ve
hatta işyerinizde dolaşırken 10 metre uzaktaki herhangi bir Bluetooth
kullanıcısı sinyalinizi alabilir ve bu sinyali kullanarak aygıtınıza erişebilir
Güçlü bir PIN kodu kullanın.
Beş basamak veya daha uzun kodlar daha zor cozulur.
Kablosuz aygıtlarınızda önemli verilerinizi
saklamaktan kaçının;
Sosyal güvenlik numaranız, kredi kartı numaralarınız ve
parolalarınız gibi bilgileri saklamayın.
Bluetooth gelişmeleri ve güvenlik sorunları
konusunda güncel bilgileri edinin
Yazılım güncelleştirmeleri veya belirli güvenlik açıkları için
aygıt üreticinize düzenli olarak başvurun.
Bluetooth Güvenliği - 2007
49. Bluetooth 2.1 geliyor…
Bluetooth 2.1 olarak adlandırılan yeni nesil Bluetooth
teknolojisi daha güvenli, kolay kullanılabilen ve daha az
güç harcama özellikleri ile 2007 yılı içerisinde cihazlarda
kullanılabilir duruma gelecek.
Bağlantıyı ve cihazların yetkilendirilme işlemini otomotik
hale getiren Bluetooth 2.1, quot;man-in-the-middle” (bağlantı
kurulan cihazlar arasındaki data akışına sızma saldırısı)
saldırılarına karşı da geliştirilmiş güvenlik sağlıyor(6
digitlik yeni bir sifre ekleniyor.Bu sifrede kullanici araciligi
olmadan aygit tarafindan saglaniyor.).
Bluetooth 2.1, güç tüketiminde de önceki Bluetooth
teknolojisine göre beş kat avantaj sağlıyor.
Bluetooth Güvenliği - 2007
50. Kaynaklar
SIG, Bluetooth Specification Version 2.0 + EDR, [2004]
SIG, Specification of the Bluetooth System, [10-Nov-
2004],http://bluetooth.com/Bluetooth/Learn/Technology/Specif
ications/
Özçelik, Mehmet Ali , ,Bluetooth Üzerinden Veri İletimi,2005
Mikkola Lauri,Bluetooth Security,[2006]
Serge Vaudenay ,Bluetooth Security,[2006]
https://www.bluetooth.com/
https://www.bluetooth.org/
Bluetooth Güvenliği - 2007
51. TEŞEKKÜRLER
Sorular?
Bluetooth Güvenliği - 2007