A cryptographic device and its implementation method

Abstract

The invention discloses a cryptographic device and an implementation method. The field programmable logic gate array system level chip integrates an embedded ARM processor, and the field programmable logic gate array system level chip also has a built-in finite state machine; the ARM processor passes an external The memory interface is connected and communicated with the field programmable logic gate array system-level chip; the non-volatile flash memory is connected with the ARM processor, and is used to store the firmware program, the first key and data of the ARM processor; the finite state machine Respectively connected to multiple cryptographic algorithm modules and multiple random number generators, the finite state machine is used to schedule multiple cryptographic algorithm modules and multiple random number generators, and multiple random number generators are used to generate true random numbers; the The implementation method is that the ARM processor analyzes the control command information received by the encryption device and the data to be encrypted and decrypted, and judges whether the first key needs to be used, uses different keys in different situations, and completes the encryption and decryption operation and operation data transmission.

Description

technical field [0001] The present invention relates to the technical field of information security, and in particular, to a cryptographic device and an implementation method. Background technique [0002] With the rapid development of communication and computer network technology, people are increasingly dependent on the network environment and network information resources, and the problem of network information security is becoming more and more serious. Network information crime has become a major hidden danger in today's society. Effective protection of transmission and transmission is the key to solving the above problems. [0003] The State Cryptography Administration has successively promulgated a variety of domestic cryptographic algorithms according to the needs of my country's information security. In order to support different cryptographic algorithms, it is necessary to design various cryptographic devices to meet the needs of different cryptographic algorithms....

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Problems solved by technology

[0003] The State Cryptography Administration has promulgated a variety of domestic cryptographic algorithms according to the needs of my country's information security. In order to support different cryptographic algorithms, it is necessary to design various cryptographic devices to meet the needs of different cryptographic algorithms. Traditional cryptographic devices are mainly based on PCI bus or PCI- E bus, however, the design of this kind of bus is too complicated and needs to be placed in the chassis, which has caused the problems of high cost, lack of versatility and limited practicability

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