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Smart Cards
A smart card, chip card, or integrated circuit card (ICC), is any pocket-sized card with embedded integrated circuits. A smart card or microprocessor cards contain volatile memory and microprocessor components. The card is made of plastic, generally polyvinyl chloride, but sometimes acrylonitrile butadiene styrene or polycarbonate. Smart cards may also provide strong security authentication for single sign-on (SSO) within large organizations.
Smart cards can provide identification, authentication, data storage and application processing.
The benefits of smart cards are directly related to the volume of information and applications that are programmed for use on a card. A single contact/contactless smart card can be programmed with multiple banking credentials, medical entitlement, driver�s license/public transport entitlement, loyalty programs and club memberships to name just a few. Multi-factor and proximity authentication can and has been embedded into smart cards to increase the security of all services on the card. For example, a smart card can be programmed to only allow a contactless transaction if it is also within range of another device like a uniquely paired mobile phone. This can significantly increase the security of the smart card. There are two types of smart cards;
1. Contactless Smart Cards
The contactless smart card, in which the card communicates with and is powered by the reader through RF induction technology.These cards require only proximity to an antenna to communicate. They are often used for quick or hands-free transactions such as paying for public transportation without removing the card from a wallet.
Like smart cards with contacts, contactless cards do not have an internal power source. Instead, they use an inductor to capture some of the incident radio-frequency interrogation signal, rectify it, and use it to power the card's electronics.
ICs Type
Frequency
EEPROM
ISO Standard
Technical Specifications
EM4100 , EM4102
125 Khz
64 Bit R/O
/
EM4200
125 Khz
64 Bit R/O
/
EM4550
125 Khz
1 K Bit R/W
/
T5557 , T5567
125 Khz
330 R/W
/
Hitag1
125 Khz
2K R/W
/
Hitag2
125 Khz
256 Bit R/W
/
I CODE SLI
13.56 Mhz
1 K Bit R/W
ISO18000
TI 2048
13.56 Mhz
2 K Bit R/W
ISO18000
U CODE
UHF
2 K Bit R/W
ISO18000
2. Contact Smart Cards
Contact smart cards have a contact area of approximately 1 square centimetre (0.16 sq in), comprising several gold-plated contact pads. These pads provide electrical connectivity when inserted into a reader.
The ISO/IEC 7810 and ISO/IEC 7816 series of standards define:
Arrow   physical shape and characteristics
Arrow   electrical connector positions and shapes
Arrow   electrical characteristics
Arrow   communications protocols, including commands sent to and responses from the card
Arrow   basic functionality
Cards do not contain batteries; power is supplied by the card reader.
Chip Type
Memory
Contact Module
Technical Specifications
SLE4442
256 Byte
6
SLE5542
256 Byte
6
SLE4428
1K Byte
6
SLE5528
1K Byte
6
SLE4406
112 bit
6
SLE6636
221 bit
6
AT24C02
2K Bit
8
AT24C04
4K Bit
8
AT24C08
8K Bit
8
AT24C64
64K Bit
8
AT24C128
128K Bit
8
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