Download JAVA RING Seminar

JAVA RING
ABSTRACT
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 Microsystems’s Java Ring was
introduced at their Java One 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. 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. For example, a
robotic machine made coffee according to user preferences, which it downloaded when they
snapped the ring into another “ring reader.” The Java Ring is an extremely secure Javapowered 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 — a
one million transistor, single chip trusted microcomputer with a powerful Java Virtual
Machine (JVM) housed in a rugged and secure stainless-steel case.
 What is a java ring?
 History
 Working
 iButton
 Blue Dot Receptor
 Comparison with smart cards
 Applications
 Advantages
 Disadvantages
 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.
The Java Ring is a stainless-steel ring, 16-millimeters (0.6 inches) in diameter, that
houses a 1-million-transistor processor, called an iButton.
The ring has 134 KB of RAM, 32 KB of ROM, a real-time clock and a Java virtual
machine, which is a piece of software that recognizes the Java language and translates it
for the user's computer system
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
Java Ring in its natural environment..
 History…
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.
Java ring has been tested at Celebration School, an innovative K-12 school, just
outside Orlando, FL. The rings are given to students and have been programmed to;
store electronic cash to pay for lunches
automatically unlock doors
take attendance
store medical information
allow students to check out books.
Students simply press the signet of their Java Ring, and it performs the desired
function.
The rings given to students are programmed with Java applets that communicate
with host applications on networked systems. Applets are small applications that are
designed to be run within another application.
The Java Ring is snapped into a reader, called a Blue Dot receptor, to allow
communication between a host system and the Java Ring.
 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.
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
The Java Card 2.0 architecture has taken client/server architectures to a new place -one where the "server" is a small piece of software on an extremely small system,
and the client is a potentially huge piece of software on a potentially much larger
system.
The network protocol is encapsulated in packets that are called application program
data units, or APDUs for short
The smart card runtime code gets the first crack at decoding the APDUs as they
arrive on the serial interface.
Further, there are predefined APDUs that tell the runtime to select an applet, delete
applets, load applets, and so on.
Thus, errant applets are simply deleted by the developer once it's ascertained that
they aren't responding correctly to the APDUs they receive
 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.
iButton
iButtons are connected to 1-Wire bus systems by means of a socket with contacts
which touch the "lid" and "base" of the canister.
The connection can be fleeting, similar to swiping a credit card through a reader.
Semi-permanent connections are possible with a different socket type. (The iButton
clips into it, but is easily removed).
Unlike electrically erasable programmable read-only memory (EEPROM), the
NVRAM iButton memory can be erased and rewritten as often as necessary without
wearing out.
It can also be erased or rewritten at the high speeds typical of complementary metal
oxide semiconductor (CMOS) memory, without requiring the time-consuming
programming of EEPROM
 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.
Blue Dot Receptor..
The user can elect a quick information transfer with a momentary touch of the
iButton to the Blue Dot.
For hands-free operation the iButton can be snapped into the Blue Dot and remain
there.
Each receptor contains two Blue Dots to accommodate instances where multiple
iButtons are required for a transaction.
Opening doors…
KEY FOB
 Comparison with Smart Cards…
iButtons have an advantage over conventional smart cards in term of durability and
longevity.
iButtons are rugged enough to withstand harsh environments.
iButton uses java as a common programming language.
Applications…
Access Control
Time and attendance
eCash
Thermochron Applications
Gaming Systems
 Advantages…
A very easy and convenient way for users.
More secure than using passwords.
Portable.
Ruggedness.
Wearable.
Provides authentication to users which is crucial for many applications.
Easier for administrator to maintain the security infrastructure.
Provides real memory, more power, and a capacity for dynamic programming
 Disadvantages…
Parents and teachers will have less control over children and students
Loss of privacy
 Conclusion…
 ABSTRACT
The java powered cryptographic iButton named java ring can readily support the
commerce models that have traditionally been the province of credit cards.
Its greatest promise appears to 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 programmingclusion