Treat method of information safety IC directing against encryption and decryption operation

Abstract

The invention provides an encryption and decryption processing method of an information security integrated circuit, which belongs to the technical field of integrated circuit design. The symmetric cryptographic algorithm performs encryption and decryption control through the control signal. The control signal has an independent pressure point, which is set between a power supply pressure point and a ground pressure point. When encapsulating, connect the control signal pressure point to the On the external pins of the chip, the adjacent power supply pressure points or the adjacent ground pressure points, three different circuits are formed by using the internal level to complete the one-way operation required by the application, that is, encryption and decryption, encryption or decryption. Operation, without increasing the cost, realizes the purpose of using one integrated circuit chip to complete three different encryption and decryption functions.

Description

technical field [0001] The invention belongs to the technical field of integrated circuit design, in particular to the design of special integrated circuits used in the field of information security. Background technique [0002] With the rapid development of computer technology, communication technology and microelectronic technology, information has become a huge driving force for social development. It plays a very important role in the country's political, military, diplomatic and other non-civilian fields, and is also closely related to financial, commercial, economic and other civilian fields. In order to protect the security of key information, adopting cryptography is a common and effective method. In order to speed up processing and improve security, it is an effective technology to implement specific cryptographic algorithms in the form of dedicated information security integrated circuits. [0003] For information security integrated circuits using symmetric cry...

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the problem that the above-mentioned same information security integrated circuit chip cannot satisfy one-way encryption, one-way decryption and encryption and decryption operations, and provides an information security integrated circuit processing method for different encryption and decryption operations, which can realize different encryption and decryption operations operate

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