High-performance password card and communication method thereof

Abstract

The invention provides a high-performance cipher card with high integration, which comprises a cipher integrated chip, a random source module, a FLASH chip, a PCI-E interface and an intelligent cipherkey, and is characterized in that a main processor unit, a cipher algorithm operation unit, a peripheral interface unit, a BAR register and a DMA controller are integrated in the cipher integrated chip; a BAR register and a DMA controller are further arranged in the password integrated chip; the BAR register is further connected with an external host through the command logic channel, receives management instruction data issued by the external host, reconstructs a password operator and DMA configuration data and stores the password operator and the DMA configuration data in a register of thecryptographic algorithm operation unit; the DMA controller is connected with an external host through the arithmetic logic channel, and is connected with the asymmetric algorithm arithmetic unit and the reconfigurable symmetric digest algorithm arithmetic unit through an on-chip bus; and cryptographic operation data issued by an external host is received and forwarded to the asymmetric algorithm operation unit or the reconfigurable symmetric digest algorithm operation unit.

Description

technical field [0001] The invention relates to the technical field of high-performance cipher cards, in particular to a high-performance cipher card and a communication method thereof. Background technique [0002] With the rise of emerging technologies such as the Internet of Things, big data, and cloud computing, people are increasingly dependent on the network environment and network information resources. Computer networks have become an important guarantee for the development of today's information society. Network information security is related to the security of national sovereignty, social stability, public and private property and personal privacy. It is precisely because of the existence of network information security problems that a large number of network Important data stored and transmitted in the network needs to be effectively protected. [0003] In order to ensure the security of special data or industry data, network data needs to be transmitted in an e...

AI Technical Summary

Problems solved by technology

Most of the existing cryptographic cards are composed of ARM processors, FPGA chips, cryptographic algorithm chips, memory and other chips, which will lead to high complexity and high cost of high-performance cryptographic cards.

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