Non-contact card and its international standards
There are many non-contact IC cards. Currently, Mifare Series Card accounts for 80% of the world's non-contact card, which is very suitable for application of electronic wallet, highway toll system and bus automatic ticket system. M1, ml are logical encryption cards. Non-contact card international standards Type A and Type B, Mifare cards meet ISO-14443 - Type A standard, Type A standard is a card, there is standard; some chip manufacturers headed by Motorola also make ISO- 14443 - TYPE B standard, then develop card chip according to Type B standard, the current Type B standard card has no large-scale application, Type B standard card is mainly non-contact CPU card. Type A also has a CPU card, such as Mifre PRO. Our company currently provides Mifare series non-contact IC cards, including logical encryption cards M1, ML, and double interface CPU cards. The non-contact card has the following advantages, but the non-contact card is not universal, not necessarily applicable to all fields. (1) There is no mechanical contact between reliability high non-contact IC card and read / write equipment to avoid various faults generated by contact and writing; non-contact IC card m1 surface has no bare chips, no chip falls off, Impact of static breakdown, bending damage. (2) The service life of the service life can repeat the number of times of 100,000 times. The number of read operations is unlimited; (3) Easy to operate, the speed M1 card is not used without directionality, no need to swap, greatly improve the speed of each use; M1 card operation Energy supply adopts passive mode, non-contact operation; (4) Anti-conflict non-contact card M1 has a fast anti-conflict mechanism to prevent data interference between cards. Therefore, the reader can "simultaneously" handle multiple non-contact IC cards to improve the parallelism of the application. (5) It can be applied to a variety of district sections of the non-contact card M1, and the block of the blocking memory structure makes it suitable for one card, which can be applied to different system management, and different passwords can be set according to different applications. And access conditions. (6) Encryption performance Good non-contact card M1 has uniquely changed global chip unique serial number; two-way verification mechanism between non-contact card and readers, non-contact card M1 should be read before data processing The writer performs three mutual certifications, and all the data in the communication process is encrypted.
