Non-contact processor card based on combined public key authentication and use method

Abstract

The invention belongs to the technical field of CPU cards and provides a non-contact processor card based on combined public key authentication and a use method. The non-contact processor card comprises a chip, a safe serial port, a radio frequency unit, a micro processor, an RAM, an ROM, an EEPROM, a safe logic unit and a self-destruction unit, wherein the safe serial port, the radio frequency unit, the micro processor, the RAM, the ROM, the EEPROM, the safe logic unit and the self-destruction unit are installed on the chip and are connected with the chip through circuits. The use method of the combined public key authentication is achieved, collusion attack prevention capacity is improved by means of a chaotic random sequence generated by means of chaotic mapping, a puzzling secret key of a reversion prevention project is additionally arranged in a secrete key unit, meanwhile, a self-destruction logic unit for preventing temptation attacks is additionally arranged, transmission secrete keys are not needed, requirements for safety in the communication process are not high, use safety is high, large-scale popularization and use are facilitated, and the CPU card and the use method are suitable for meeting service requirements on the basis of mobile communication.

Description

technical field [0001] The invention belongs to the technical field of microprocessor CPU cards, in particular to a non-contact processor card based on combined public key authentication in the fields of insurance, traffic police, government industry, finance, transportation, commerce, aviation and the like and its usage method. Background technique [0002] The non-contact microprocessor card is also the CPU card. Generally speaking, it means that the chip contains a microprocessor. Its function is equivalent to a microcomputer. The metal sheet on the integrated circuit IC card that people often use is the CPU card chip. . The CPU card can be used in many fields such as finance, insurance, traffic police, and government industries. It has the characteristics of large user space, fast reading speed, and supports one card for multiple purposes, and has passed the certification of the People's Bank of China and the State Commercial Secret Committee. The appearance of the CPU ...

AI Technical Summary

Problems solved by technology

[0005] When the symmetric encryption system is used, the encryption key and the decryption key are the same or related, so the security requirements for its storage and transmission are very high. Although the security of the key system can be greatly improved, the hardware used The device performs encryption processing, and special hardware devices are used to store and transmit keys, which is not convenient for large-scale promotion and use

Moreover, the security of the key during transmission is difficult to guarantee, especially for services based on mobile communications, such as mobile payment, etc. Others can easily obtain the key during transmission through wireless technology.

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