Smart card classification:
1.According to the card and the outside world data transmission is divided into:
(1)contact smart card: read and write need IO line contact. The card is through the IC card to read and write the contact with the IC card contacts contact after the data read and write. International standard ISO7816 on the mechanical characteristics of such cards, electrical characteristics, such as a strict provision.
(2)Non-contact smart card (also known as induction smart card): This type of card and IC card device without circuit contact, but through non-contact read and write technology to read and write (such as RF, infrared, induced electromotive force, non-IO line contact) The Its embedded chip in addition to CPU, logic unit, storage unit, the addition of RF transceiver circuit. International standard ISO10536 series describes the provisions of non-contact IC card. The type of card is generally used in the use of frequent, relatively small amount of information, high reliability requirements of the occasion.
(3)Dual interface card: both contact and non-contact interface. The contact IC card and non-contact IC card into a card, the operation independent, but can share the CPU and storage space.
2.According to the functional structure, can be divided into general memory card, encrypted memory card, CPU card and super smart card.
(1)General memory card: IC is a programmable erasure programmable read-only memory EEPROM, it only has a data storage function, does not have data processing functions and hardware encryption. Only in the file encryption, easy to be cracked.
(2)Logic encryption memory card: integrated circuits, including encryption logic and programmable read-only memory EEPROM, encryption logic by verifying the password to protect the card data for external access is open, to a certain extent, to protect
