High speed password card based on double DSP dual bus structure

Abstract

The high speed cipher card based on two DSP two-bus structure is characterized in that: two digit signal processors (DSP) conduct data processing, one of the processors is connected with a physical noise source WNG5, each processor is matched with a independent FLASH storage, between the two processors and enciphering-deciphering chips adopts two-bus communication, and between the two processors and the main machine also adopts two-bus communication, the connection two-mouth RAM between the two processors adopts bridge-jointing chip to realize the conversion from PCI bus to PCI-Express bus. Advantage: raised input-output speed and property in video-audio media data enciphering-deciphering course, simple structure and convenient for using.

Description

technical field

[0001] The invention relates to the field of electronic information, in particular to a high-speed cipher card based on a dual-DSP dual-bus structure, which is used in finance, electronic government affairs, military industry and other industries that require data security. Background technique

[0002] Everyone knows that the security of data is related to the information security and commercial interests of enterprises. More and more enterprises have begun to pay attention to the encryption and decryption of data. The following defects:

[0003] 1. Existing cipher cards generally use a DSP chip to process data.

[0004] 2. The data transmission between the DSP and the encryption and decryption chip adopts the same bus, which greatly affects the input and output of data. Contents of the invention

[0005] In order to overcome the deficiencies of the above-mentioned technologies, the present invention provides a high-speed encryption card based on a dual-...

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