Your Bluetooth Questions Answered Bluetooth Technology, Security,Increasing Popularity ,Electrical Devices and Their Applications

Your Bluetooth Questions Answered
Bluetooth technology has changed how cell phone users communicate. Those distinctive ear pieces are not just an accessory. It allows cellular users to talk using a hands-free device. But there is probably more to it than you might realize.

For example: did you know that at one time it was considered for wireless Internet instead of Wi-Fi? Many states are considering passing laws requiring all cell phone users to use hands-free devices while driving so to reduce the amount of distractions from trying to drive and talk at the same time. Do you have more questions regarding Bluetooth services? In this article we will address some of the basic questions and concerns regarding Bluetooth Technology.
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Bluetooth Technolgy, Infared, Electrical Devices and Their Applications Bluetooth And Infared, Electrical Devices

Bluetooth and with new electrical devices being produced every day, the problem of connecting things is becoming more and more complex in nature. The system that comprises computers and other electronics makes use of varieties of wires, cables, etc.


These parts will communicate through light beams, lasers, radio signals, and infrared. The problem however, is the devices and technology is often the connection between each component. Therefore, most electronic systems are not used to their full extent due to the problems and imperfections.
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Security Of Your Bluetooth Devices
These days, all forms of communication technology face the problem of security and theft of personal details , and 'bluetooth' is no exception to these concerns, nor should it be. Most everybody knows by now that all email programs and networks need protection and security. What users of 'bluetooth' really do need to comprehend is that 'bluetooth' requires the same protection measures as email programs and other communication programs.

The upside for 'bluetooth' users is that the recent breaches-of-security scares, as in all scares, are usually way over – dramatized and blown way out of all reasonable proportions. The reality being told, these issues are simple to control, using several protocols now in place to ensure protection for 'bluetooth' technology
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Increasing Popularity of Bluetooth
In the world of rapid changing technology, continuously we are bombarded by names such as Bluetooth, wi-fi and TIVO. Technology has become so advance that people only need to press the button for changing the channel and use the technology of Bluetooth and infrared to transform the data.

So are you looking for creative, cost effective methods to distribute rich media content? Here is the solution for you, Bluetooth marketing is an amazing system that uses wireless Bluetooth technology to target your audience at near proximity to your establishment with direct response message.
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Understanding Bluetooth and Bluetooth USB Technology

Do You Understand The Bluetooth Technology ?

With every passing month, it seems that more electronic devices are touted as being Bluetooth enabled. And, while many people are excited about the advent of its new products, others are left scratching their heads wondering, "What is Bluetooth?"

Bluetooth mobile wireless technology has become one of the leading technologies for wireless communication world wide. The reason it has become so popular around the globe, in just a few short years since its introduction, is because it allows phones, computers, PDAs and other electronic devices to easily communicate with the other enabled devices nearby. The range of its networking is limited to a short range of about 30 feet.

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What is Bluetooth - Basic Specifications and Features

What is Bluetooth technology? Many are asking this question despite the gadget being discovered more than a decade ago, in 1994. The technology of wireless Bluetooth is all about short range communication that effectively eliminates the use of wires connecting devices, at the same time maintains high security level.

Bluetooth has turned into an in-demand gadget if only because of its low usage of power as well as cheap cost. Bluetooth specification offers structures for a variety of gadgets to easy connection and communication with one another.

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What Is Bluetooth, A Description Of Bluetooth Technology

Every day we are seeing more and more electronic gadgets that are advertised as being Bluetooth enabled. This may leave you feeling excited or it may leave you trying to figure out what all of the fuss is about. You may just want to know what is Bluetooth? You may just want a simple description of Bluetooth technology.

Bluetooth mobile wireless technology is fast becoming a leader when it comes to technologies that involve wireless communication. It is becoming all the rage all over the world because in the short time it has been around Bluetooth technology has paved the way for computers, telephones and other electronic gadgets to be able to communicate with other Bluetooth devices that are within range. The current range for Bluetooth wireless technology networking is about thirty feet.

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The Future of Bluetooth
Because it meets the basic needs of connectivity in close range, Bluetooth has a very bright future ahead of it. Bluetooth is actually the result of initiatives from nine leading communications and computer industry giants, including 3-COM, Sony, Lucent, IBM, Nokia, Microsoft, etc.

Since the forming of the original group, more than 1,800 manufacturers around the world have joined the initiative. According to reports, the Bluetooth technology is expected to be built into more than 100 million devices, with over 670 million enabled Bluetooth devices

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Understanding Bluetooth Usb

Bluetooth wireless technology nowadays has become very popular if you are looking for a convenient way to perform short-range communication and connectivity between different electronic devices without the hassle of wires and cables.

The technology has become a globally available standard and easy to use because there’s no need for a driver software to be installed. All you need is a Bluetooth USB in the form of adapters and dongles. They are capable of enabling electronic devices that has a USB port to support the Bluetooth protocol.

Currently, a lot of products are available in the market that supports the Bluetooth technology such as Bluetooth cell phone, wireless technology PDAs (Personal Digital Assistants), laptop computers, wireless stereo headset, MP3 players and cell phone headsets.

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The Benefits Of The Bluetooth Wireless USB Adapter

Bluetooth mobile wireless technology is the clear and simple choice when you need convenient, short-range connectivity and communication between various electronic devices, and all without the hassle of a web of wires and cables. Bluetooth technology is a standard that is globally available and simple to use because driver software does not need to be installed. The Bluetooth wireless USB adapter is making the benefits of Bluetooth technology available to almost any device that has a USB port.

There is a wide array of products that are becoming available on the market that use the Bluetooth wireless technology networking, such as: cellular phones, laptop computers, a wireless technology PDA, a wireless stereo headset, hand-held computers, cell phone headsets and MP3 players. These are just some of the products that commonly have this technology integrated into them and more are being introduced on the market all the time. An enabled USB adapter allows you to add mobile wireless technology to a desktop computer or a laptop computer, that is not equipped with Bluetooth capabilities.

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Bluetooth for connection

Author: Darren Evans

Bluetooth: What it is and How it Works

I know many experienced computer users who never give a thought to Bluetooth. “Oh, yeah, I think that’s built into my laptop but I never use it” is a common refrain. Initially touted as the technology that would finally free us from the horrors of multiple tangled cables and cords, Bluetooth didn’t catch on as quickly as expected. Until recently, there just weren’t that many useful (with the emphasis on “useful”) Bluetooth devices available – at least, not for desktop computing. Users of handheld computers (such as my iPaq) adopted the technology more quickly, as it allowed us to easily attach portable keyboards, headsets, printers, etc. to our portable devices (which often don’t have a bunch of connection ports like desktops and laptops do). Bluetooth-enabled cell phones allow you to connect a PDA or portable computer to the Internet through them.

Bluetooth was designed to be the basis of the Personal Area Network (PAN) – a way for devices within relatively close proximity to communicate wirelessly with one another. The range for Bluetooth transmissions varies from about 1 meter up to 100 meters, depending on the power class of the device. Thus, the most powerful (Class 1) can communicate over a distance of more than 300 feet, similar to a typical wi-fi network.

Like 802.11b and g, Bluetooth transmits over the 2.4 GHz radio frequency. Its speed is limited to about 1 Mbps (far slower than wi-fi, but still roughly equivalent to a typical broadband Internet connection). It uses LMP (Link Manager Protocol) to handle the connections between devices.
Bluetooth Security Issues

Bluetooth can operate in one of three security models:

1. is non security.
2. provides security at the service level, after the channel is established.
3. provides security at the link level, before the channel is established.

Each Bluetooth device has a unique 48-bit device address. The authentication scheme is challenge-response, using symmetric keys, and encryption is done with a key that can be up to 128 bits (negotiated by the communicating devices, with each device having a maximum key length defined). A 128 bit random link key handles security transactions between two or more devices.

When two Bluetooth devices establish a communications channel, they both create an initialization key. A passkey or Personal Identification Number is input and the inititalization key is created, and the link key is calculated using it. Then the link key is used for authentication.

The first security concern is the passkey or PIN. As with any key, long keys are more secure than short ones. If a hacker is able to discover the passkey, he can calculate possible initiation keys, and then from that, calculate the link key. Making the passkey long will make it much harder to accomplish the first step.

The initial key exchange takes place over an unencrypted link, so it is especially vulnerable. It’s best if this part of the BT device pairing process takes place in a more physically secure location (that is, where there are not likely to be any lurkers with BT devices who could intercept the communications). A hacker could record transmissions sent over the BT frequency and use them to recreate the PIN.

Rather than using the same fixed passkey all the time, it should be changed frequently (how frequently depends on the types of devices and the required security level).

Link keys can be combination keys or unit keys. Best security practice is to use combination keys instead of unit keys. When you use a unit key, you must use the same key for all secure transactions, and the key has to be shared with other trusted devices. This means any trusted device can potentially access traffic with other trusted devices using this key.

It’s possible to use the Bluetooth address to identify a particular device (and associated user) and log those transactions, which can create privacy concerns.
Why Does Bluetooth Security Matter?

Many Bluetooth users only use the technology to connect a wireless headset or similar device to their portable computers, and they may wonder why security is a big deal. Implementing security, even for these types of device pairings, can prevent an unauthorized user from using the headset.

However, another use of Bluetooth is to create a temporary computer network. For example, several people in a meeting room can connect their Bluetooth-enabled laptops to each other to share files during the meeting.

When you use Bluetooth to create a temporary network, it is usually an ad hoc network; that is, computers communicate directly with each other rather than going through a wireless access point (WAP). This means you have no centralized point of security control, as you do with a WAP (for example, you can configure a WAP to use MAC address filtering and other built-in security mechanisms). Thus, security becomes a major concern because you can be exposing important data stored on your laptop to others on the Bluetooth network. Remember that the range for class 1 Bluetooth devices can be more than 300 feet – far enough so that in some locations, the BT equivalent of the wi-fi “war driver” may be able to establish a link with your computer even though not within your sight.

Another special concern is the security of Bluetooth mobile phones. These phones may have information stored on them such as the addresses and phone numbers of contacts, calendar information and other PDA-type data. Hacking into these phones using Bluetooth is called bluesnarfing. Newer mobile phones and software upgrades for older phones can patch this vulnerability.

A related hacking technique is called bluebugging, and it involves accessing the phone’s commands so that the hacker can actually make phone calls, add or delete contact info, or eavesdrop on the phone owner’s conversations. This vulnerability, too, is being addressed by phone manufacturers. Thus, if you own a BT-enabled phone, it’s important to keep the software updated or upgrade to the latest phone models frequently.

Bluetooth devices can also be targets of Denial of Service (DoS) attacks, typically by bombarding the device with requests to the point that it causes the battery to degrade.

Finally, there are “cell phone worms” such as Cabir that can use the Bluetooth technology to propagate to other BT devices. Cabir targets phones that use the Simbian OS.

The relatively short range of most Bluetooth devices helps to ameliorate the risk of most of these security issues. For example, to practice bluesnarfing or bluebugging against a BT phone, the hacker would typically need to be within about 10 meters (a little less than 33 feet) of the target phone.

Bluetooth Headsets

About the Author:

I live and work in the South East of England I am married with 4 children.
I am the publisher of several websites my latest being
Cash Advance & New Build & plot Search

Article Source: ArticlesBase.com - Bluetooth for connection