Access control system IC card encryption principle is what?
Inductive technology, or radio frequency identification (RFID) technology, is a way to read information on a card without direct contact between the card and the card reader.
The DES algorithm is used without any patent and licensing restrictions. DES algorithm encryption and decryption can be used with the same program, as long as the end of the iteration at the end of a small change, so easy to program. Enhanced the correctness of execution. If the identification and identification of both sides have a correct implementation of the agreement, the agreement will terminate the work. Each time the data sent is random number programmed, when sending the same data, each transmitted ciphertext will not repeat. Resistance to replay attack has a very good effect. Choose a good pseudo-random number generation algorithm, can further improve the security.
IC card access control system is a safe and reliable electronic door lock system. The use of the system, you can easily manage and control the application of personnel into and out of the situation, identify the access status and access authority.
