RE: smart card ppt
||SMART CARD :Technology Of Secure Information Exchange
Smart cards were introduced in Europe in the beginning of 1990s,basically to reduce theft and fraud in payphones.
WHAT IS A SMART CARD ?
It is like an “electronic wallet”.
A standard credit card sized plastic intelligent token within
which Si microchip is embedded.
It has a memory & an operating system.
Operating system provides standard way of exchanging information.
Memory provides the space for storage of data.
The chip also contains advanced security features that protects card’s data.
Construction of Smart card :
The main storage area in the
card is normally EEPROM, which can have its contents updated, and retains current contents when external power is removed.
The information or application stored in the IC chip is transferred through an electronic module.
ISO Specifications :
ISO has created standard #7816,that specifies the standards regarding Smart Card chip organization.
ISO specification for an 8-bit microprocessor card :
Contact field #1 always supplies voltage to power the card.
Contact field #2 resets the information on the card.
Contact field #3 regulates the microprocessor speed by changing clock frequency.
Contact field #5 supplies the ground potential.
Contact field #7 monitors all communications (serial input/output )to and from the card.
These 5 fields are fixed out of 8 & the rest 3 can be designed by the manufacturers.
Contact field #6 is given an external voltage for any programming that needs to be done by the card.
Contact field # 4 & Contact field #8 are reserved for future use.
Smart card Technology :
The information or application stored in the IC chip is transferred through an electronic module that interconnects with a terminal or card reader.
Two general categories of smart cards according to contactness of card with card reader ;
A. CONTACT SMART CARD
It must be inserted into a smart card reader with a direct
connection to a conductive gold plated electrical contacts
embedded inside it.
E.g., GSM SIM CARD in mobile phone.
Proven to be more reliable than the magnetic stripe card .
Can store up to thousands of times of the information than the magnetic stripe card.
Reduces tampering through high security mechanism.
Can be disposable or reusable.
Performs multiple functions.
Compatible with portable electronic devices (e.g., PCs, telephones)
Smart card technologies will prove to be the killer application for the networked economy.
It may replace the magnetic stripe card technology which is most popularly used now-a-days.
The Biometrics (i.e., fingerprint, voice etc.) will help to identify a person which may prove to be the boon for security of information.
Thus the “Smartness” of smart cards comes from the integrated circuit embedded in the plastic card.