Download - My ppt java ring
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JAVA RINGDONE BY
ARUN PRABHA K CB.TECH(IT)
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What is a Java Ring ?• Is a finger ring that contains a small microprocessor
with built in capabilities for the user.• Is a sort of a smartcard that is wearable on a finger.• Is in fact a java smart card based on Java Virtual
Machine that was proposed as the Java card 2.0.
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The Java Ring • Contains a tiny Java Virtual Machine• Implements the Java Card 2.0 API• Stores information in NVRAM (6K)• Runs applets• Includes microprocessor, memory, clock and battery
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Java Ring in its natural environment..
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EVOLUTION• The java ring, which is powered by Java card was
introduced at Sun Microsystems's JavaOne Conference, in March 1998.
• It was developed by Dallas Semiconductor.• Workstations at the conference had "ring readers"
installed on them that downloaded information about the user from the conference registration system.
• This information was then used to enable a number of personalized services.
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Components• Java Virtual Machine (JVM) • RAM • ROM • real-time clock • iButton • Blue dot reciptor
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iButton• The iButton is a mechanical packaging
standard that places a 1-Wire component inside a small stainless steel "button" similar to a disk-shaped battery.
• Each iButton has a unique and unalterable address laser etched onto its chip inside the can.
• The address can be used as a key or identifier for each iButton.
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iButton Structure
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Blue Dot Receptor…• The Blue Dot Receptors are iButton reader/probes
that provide a convenient pipeline into the PC for iButton-to-PC communication.
• The receptor's cable connects to a USB, serial, or parallel-port 1-Wire adapter, whichever type of port you wish to use.
• The receptor itself easily affixes to any accessible spot on the front of the PC.
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Working• Whenever the user pushes his ring on a ring
reader(Blue Dot Receptor), the corresponding application will take place.
• The jewel of the java ring is the iButton.• iButton is a computer chip enclosed in a thick
stainless steel can. • It uses 1-wire protocol for communication with the
host and the iButton.
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Cont…• 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 a spare PC port. 1-Wire adapters exist for USB, serial, and parallel ports. The Blue Dot receptor and 1-Wire Adapter are inexpensive
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Advantages…• A very easy and convenient way for users.• More secure than using passwords.• Portable.• Ruggedness.• Wearable.
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disAdvantages…• Cost of implementation is high• All machines should have appropriate iButton• iButton has limited process power and
memory
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Conclusion…• The java powered cryptographic iButton named
java ring that lie in its capacity to interact with Internet applications to support strong remote authentication and remotely authorized financial transactions.
• The use of Java promotes compatibility with these applications by providing a common language for all application programming.
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Applications• Access Control• Time and attendance• eCash• Thermochron Applications• Gaming Systems
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