Virtual private network applying hardware encipher/decipher

Abstract

The hardware enciphering and deciphering virtual private network belongs to the field of information safety. Built-in PCI card is inserted into computer used as gateway to realize enciphering algorithm, deciphering algorithm, digital signature, identity confirmation, etc. During the mutual access among users in different subnetwork in virtual private network, the data passing through PCI controller, in which some available data flow enciphering algorithm cured in the card memory is adopted, is received by microprocessor and stored temporarily in memory, and the enciphered data are output via network card to reach safe and efficient communication among computers under VPN environment. The present invention is even safer than software realized VPN function.

Description

technical field

[0001] The invention relates to a network security system, in particular to a virtual private network using hardware encryption and decryption, and belongs to the field of information security. Background technique

[0002] The emergence of the Internet has continuously improved the information construction of enterprises and institutions, and the interconnection between different departments of enterprises and institutions across regions has become convenient and economical. However, how to ensure the security and confidentiality of internal data transmission through the public network, and how to manage the different nodes of the enterprise network on the public network have become issues of great concern to enterprises. Virtual private network technology adopts special network encryption and communication protocols, which can enable enterprises to establish virtual encrypted channels on the public network and build their own safe virtual channels. The cro...

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