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Embedded upgrading file transmission method

A technology for upgrading files and transmission methods, applied in transmission systems, electrical components, program loading/starting, etc., can solve the problems of no prevention mechanism, information leakage of upgrade files, lack of identity authentication mechanism, etc., and achieve perfect identity authentication mechanism, transmission The effect of high efficiency and high transmission safety factor

Inactive Publication Date: 2013-09-11
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] At present, most embedded remote upgrade technologies do not pay enough attention to the security of upgrade file transmission. Most of the existing security mechanisms for embedded upgrade file transfer only encrypt or encode the upgrade file, and the file transfer only involves the server and The client side lacks a complete identity authentication mechanism, and there is no prevention mechanism for information leakage of upgrade files

Method used

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Examples

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Embodiment

[0049] figure 2 It is a schematic diagram of the file transfer process in an embodiment of the secure embedded upgrade file transfer method of the present invention.

[0050] To upgrade the system, you need to upgrade the kernel image file of the client, and the upgrade server sends the RSA public key and kernel image file information to the third-party snmp network management system server; the third-party snmp network management system server calls the snmp agent of the client, and calls the upgrade client program through the snmp agent , send the update file name kernel_new of the kernel image, the update file version 1, the upgrade server IP address, and the RSA public key to it, and the snmp protocol will securely encrypt the information it sends.

[0051] After the upgrade client is invoked, it saves the received upgrade file information and RSA public key, establishes a TCP connection to the upgrade server, and sends request information, including the upgrade file name...

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PUM

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Abstract

The invention relates to an embedded upgrading file transmission method. The embedded upgrading file transmission method includes steps of 1) generating upgrading file information and encryption keys by an upgrading server and transmitting decryption keys to a third-part network management server; 2) connecting the third-part network management server with an upgrading client side, and transmitting client-side upgrading file information, upgrading server address and the decryption keys to the upgrading client side; 3) transmitting upgrading request to the upgrading server through the upgrading client side, and connecting the upgrading client side with the upgrading server according to the upgrading server address, acquiring differential files on the upgrading server according to the client side upgrading file information, decrypting to acquire verifying values according to the decryption keys, and transmitting the files to complete upgrading after verifying is succeeded. The embedded upgrading file transmission method overcomes the defect that an existing embedded upgrading file transmission is low in safety and easy to be attacked and lacks of prevention of file information disclosure and the like and has the advantages of high transmission efficiency and transmission safety coefficient, information privacy and complete identity authentication mechanism and the like.

Description

technical field [0001] The invention relates to a safe upgrade technology of an embedded communication system, in particular to a safe and efficient upgrade file transmission method. Background technique [0002] During the operation of embedded remote communication devices, due to program failures, increased functional requirements, performance updates and improvements, etc., it is necessary to upgrade the software of remote devices. During the upgrade process, it is first necessary to realize the remote transmission of files from the server to the embedded device. In a complex network communication environment, there is a possibility that important file transmission content will be leaked, the communication process will be monitored, and the core technology will be stolen. Malicious attacks on embedded network devices may also occur, so the security of file transmission is guaranteed very important. Due to factors such as unstable speed and transmission delay in remote n...

Claims

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Application Information

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IPC IPC(8): H04L29/06G06F9/445
Inventor 石光辉段晓辉王道宪崔雯雯
Owner PEKING UNIV
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