23-07-2014, 10:44 AM
JAVA RING
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ABSTRACTS
Password is a common mean of implementing security. Dallas Semiconductor has developed a new Java-based, computerized ring that will automatically unlock doors and log on to computers. This java based technique overcomes the deficiencies of the secret password. A Java Ring is a finger ring that contains a small microprocessor which runs JVM and is preloaded with applets. The jewel of Java Ring is Java iButton, which is a microchip enclosed in a secure package.
INTRODUCTION
It seems that everything we access today is under lock and key. Even the devices we use are protected by passwords. It can be frustrating trying to keep with all of the passwords and keys needed to access any door or computer program. Dallas Semiconductor is developing a new Java-based, computerized ring that will automatically unlock doors and log on to computers. This mobile computer can become even more secure. You can keep the iButton with you wherever you go by wearing it as a closely guarded accessory - a watch, a key chain, a wallet, a ring - something you have spend your entire life practicing how not to lose. Here are a few reasons why you might want to wear the iButton in the accessory that best fits your life style :
It is a safe place to keep the private keys to conduct transactions.
It overcomes the deficiencies of the secret password.
You eliminate keystroke with a quick, intentional press of the Blue Dot.
You keep your computer at hand versus lugging your everywhere you roam
You become part of the network economy
This steel-bound credential stands up to the hard knocks of everyday wear, including sessions in the swimming pool
What is Java Ring
A Java Ring is a finger ring that contains a small microprocessor with built-in capabilities for the user, a sort of smart card that is wearable on a finger. Sun Microsystem's Java Ring was introduced at their JavaOne Conference in 1998 and, instead of a gemstone, contained an inexpensive microprocessor in a stainless-steel iButton running a Java virtual machine and preloaded with applets (little application programs). The rings were built by Dallas Semiconductor.
Although Java Rings aren't widely used yet, such rings or similar devices could have a number of real-world applications, such as starting your car and having all your vehicle's components (such as the seat, mirrors, and radio selections) automatically adjust to your preferences.
The Java Ring is an extremely secure Java-powered electronic token with a continuously running, unalterable real-time clock and rugged packaging, suitable for many applications. The jewel of the Java Ring is the Java iButton --
BLUE DOT RECEPTOR
Information is transferred between your iButton and a PC with a momentary contact, at up to 142kbps. You simply touch your iButton to a Blue Dot receptor or other iButton probe, which is connected to a PC. The Blue Dot receptor is cabled to a 1-Wire adapter that is attached to the PCs serial or parallel port.
The DS1402 Blue Dot receptor provides a convenient pipeline into the PC for iButton-to-PC communication. The receptor's cable connects to either a serial or parallel port, according to which adapter you choose. The receptor itself easily affixes to any accessible spot on the front of the PC. The user can elect a quick information transfer with a momentary touch of the iButton to the Blue Dot. Alternately, the iButton can be snapped into the Blue Dot and remain there, allowing hands-free operation.
Each receptor contains two Blue Dots to accommodate instances where multiple iButtons are required to complete a transaction. For example, a company's policy may require both an employee and a supervisor to authenticate access to sensitive information stored on a network server.
Wire Interface
By simply touching each of the two contacts we can communicate to any of the iButtons by using 1-Wire protocol. The 1-Wire interface has two communication speeds. Standard mode are at 16kbps and overdrive mode at 12kbps. 1-wire protocol is used for communication between PC and the blue dot receptor over the 1-wire Network. 1-Wire Network includes a system
JAVA RING - THE TIDAL WAVE OF FUTURE
Cute trick or tidal wave of the future Just think of the possibilities. A Java Ring (and potentially any of several personal devices, such as a key chain or watch) contains a processor compatible with Java Card 2.0, a Java Virtual Machine, sizeable RAM and ROM memory capacity, and a real-time clock. Most importantly, the iButton supports multiple applets that can be loaded dynamically. Freed from the usual constraints of connectivity, this ring lets you roam the world and bring with you your personal preferences--your computing environment, your medical information, your choices of colors or coffee.
For example, imagine starting your car with your ring: the seats and mirrors adjust automatically, your favorite radio station begins to play, and when you pull out into the street, the car "knows" your driving habits. A Java Ring--and any related device that houses an iButton with a Java Virtual Machine--goes beyond a traditional smart card by providing real memory, more power, and a capacity for dynamic programming. On top of these features, the ring provides a rugged environment, wear-tested for 10-year durability. You can drop it on the floor, step on it, forget to take it off while swimming, and the "knuckletop" remains safe inside
CONCLUSION
Dallas Semiconductor has produced more than 20 million physically-secure memories and computers with hard-shell packaging optimized for personal possession. The Java iButton, therefore, is simply the latest and most complex descendant of a long line of products that have proven themselves to be highly successful in the marketplace. With its stainless steel armor, it offers the most durable packaging for a class of products that likely will suffer heavy use and abuse as personal possessions. The iButton form factor permits attachment to a wide variety of personal accessories that includes rings, watchbands, keyfobs, wallets, bracelets, and necklaces, so the user can select a variation that suits his or her lifestyle.
obile computing is beginning to break the chains that tie us to our desks, but many of today's mobile devices can still be a bit awkward to carry around. In the next age of computing, we will see an explosion of computer parts across our bodies, rather than across our desktops. Digital jewelry, designed to supplement the personal computer, will be the evolution in digital technology that makes computer elements entirely compatible with the human form.