CPU card customization
CPU chip card is a new star product in recent years. Because of its large-capacity anti-duplication and other characteristics, it is widely used in campus card, water and electricity card, gas card, bus card, etc.; CPU card is also called smart card, and the integrated circuit in the card includes the processor CPU , Programmable read-only memory EEPROM, random access memory RAM, solidified card operating system COS (Chip Operating System) and read-only memory ROM, etc. The card is equivalent to a microcomputer without a display and a keyboard. The data in the card is divided into two parts: external reading and internal processing to ensure the safety and reliability of the data in the card;
There is a microprocessor and an IC card operating system (COS) in the CPU card. When the CPU card is in operation, it can perform encryption and decryption algorithms (the algorithm and the password are not easy to crack), and the user card and the system need to exchange multiple times. Password authentication (and extremely fast) improves the security performance of the system and has a good effect on preventing the generation of fake cards.
The CPU card is also considered to be an upgraded product of the M1 card. It has more application methods and is more secure and reliable than the M1 card. With the popularization of the application of the CPU card and the reduction of the manufacturing cost, the CPU card will gradually replace the M1 card in many fields. Applications. For the CPU card, it makes up for many shortcomings of the M1 card, the storage space is several times that of the M1 card, and the 8K-80K capacity is optional, which fully meets the current storage needs. It uses a file storage similar to the operating system. way, the design is very flexible. The CPU card uses a 16-byte key, and can establish multi-level partitions according to actual needs, realize the combination control of multi-level partitions and multi-level keys, and improve the security in use. It adopts general public software or hardware acceleration algorithm, and can be customized to meet financial standards. It can also be flexibly designed by users, with built-in anti-pull process. The CPU card adopts a universal read-write module for transparent transmission, and cooperates with the SAM key algorithm. The authentication is carried out inside the cards of both parties. The encrypted random number is used in the transmission process, which greatly improves the security of reading and writing. The vitality of the CPU card is strong in terms of security. The CPU card can adopt a variety of security methods, and can even play a role in protecting the software system. A variety of different applications can be used at the same time, such as the storage structure of a virtual M1 card, that is, a card with multiple uses. The combined use of COS and software system improves the flexibility of operation.