Network cipher machine

Abstract

The invention discloses a network cipher machine. A system central processing unit (CPU) in the cipher machine is in control connection with a packet encryption algorithm chip, a hardware random number generator, a memory, a casing protection monitoring circuit and a static random access memory (SRAM) device with a backup battery respectively, wherein the casing protection monitoring circuit protects the SRAM device with the backup battery; and simultaneously the system CPU is externally connected with two Ethernet ports by two physical layer transceivers, and is externally connected with a serial port by a serial port controller. The network cipher machine adopts a virtual private network (VPN) technology, constructs a virtual private network on the Internet or a private network, makes networking easier and makes security simpler to achieve.

Description

Technical field: [0001] The invention relates to a network security technology, in particular to a network cipher machine technology. Background technique: [0002] With the popularization of informatization, the network has become an important means for people to obtain, utilize and transmit information and knowledge, but it also bears the risk of sensitive information being attacked during use. Faced with this reality, information security technology has become the fundamental core of network applications and one of the important contents of national information infrastructure construction. Network security technology has now been widely used in various industries, including the use of a series of products such as anti-virus, firewall, security router, security gateway, cipher machine, and encryption server. One of the main aspects is network security hardware equipment. Network security hardware equipment has attracted more and more attention due to its characteristics o...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a high-performance network encryption machine aiming at the potential safety hazards in the above-mentioned existing network and the defects in the existing network security hardware equipment. The encryption machine is a completely open hardware security platform. Based on the secure transmission of information in the network, it provides users with an encryption and decryption platform at the link layer, IP layer, and application layer through the Ethernet interface, and realizes functions such as data encryption, decryption, signature, authentication, and key management. Guarantee the confidentiality, integrity, validity and controllability of information in the process of transmission, exchange, processing and storage

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