samedi 20 décembre 2008

What Makes a Smart Card So Smart?

By Fabian Toulouse

The decimation of information between firms and individuals is prevalent in our ever-growing technological societies. The need to keep private details about us private is a major concern. That's where smart cards come into play.

Usually found in a credit card like device, the smart card takes information digitally and/or electronically and sends it to a terminal that verifies the cardholder is the owner of the card. This can be produced through the use of a credit card reader, a ticket reader, or perhaps an ATM machine. They contain tamper-proof security systems in a small chip embedded in the card. The smart card may also work biometrically, such as with a fingerprint. Benefits of the smart card include secure business transactions and authentication through various websites that may contain shopping cards, online banking, and the like.

The smart card, or SIM card as it known, isn't new. It is only two generations from the first chip card introduced by Helmut Grttrup in 1968. Helmut's invention was first used in France in 1983 with Tlcarte, the country's pay phone system. Through the next few decades as technology advanced, memory cards and one-chip microprocessors were invented by Honeywell Bull. Europe had widely been using the smart cards for decades and the floration came into being by the end of the twentieth century as cell phones began use of the SIM cards.

Various forms of transference of information are used with these cards. The contact smart card uses gold-plated contact pads one square centimeter that a car reader can pull the transactional information form. The energy is supplied by the card reader via protocols that are computer-programmed commands inside the card itself. Electrical signal description has a reset button embedded and comes with a clocking and timing signal as well as an integrated circuit inside the card. This type is emanate in the SIM on a cell phone. Contactless smart cards require the user to be within a few feet for most transactions. You will see this in use at places like your gas station's paypass system or EZ Pay at tollbooths. For a single sign on application, cryptographic cards are used. This can be found in the long on of a computer. Digital identification cards put to use the smart card as means of verification of identity. This type of application can be combined with biometric for an added layer of security. The DOD uses such a mechanism for their personnel. Mendoza, Argentina uses the digital ID for driver's licenses to keep track of tickets and accidents as well as emergency contact and medical information. By 2009, it is slated that Spain and Belgium will put into use throughout their entire countries this ID system.

However smart they are, smart card do encounter some problems. For instance, when embedded within a credit card the user may bend the smart card and break it. Also, any electronic device is subject to static electricity and may get erased. If your computer becomes infected, it may degrade the SSL connection. The consumer can avoid most problems by taking care of the SIM cards, their computers, and their electronics. Technology continues to evolve and the smart card will follow suit to morph and grow with society's needs.

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