Method and device for improving terminalself-flashing safety through ciphertext handshaking

A security and self-refreshing technology, which is applied in the direction of program control device, program loading/starting, user identity/authority verification, etc., can solve the problems of reduced security and easy cracking of encrypted instructions, so as to prevent deciphering and increase cracking Difficulty, the effect of improving safety

Inactive Publication Date: 2014-09-24
YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD +1
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] In view of the deficiencies in the prior art above, the purpose of the present invention is to provide a method and device for increasing the security of the terminal self-refresh machine th

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  • Method and device for improving terminalself-flashing safety through ciphertext handshaking
  • Method and device for improving terminalself-flashing safety through ciphertext handshaking

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[0039] The invention provides a method and device for increasing the security of terminal self-flashing through ciphertext handshake. In order to make the objectives, technical solutions and effects of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0040] The present invention addresses the problems that the current self-flashing machine encryption method is relatively simple, easy to be cracked and implanted in non-preinstalled software, resulting in slow system operation, or easy to tamper with the program causing partial function failures, and provides a method for increasing the security of terminal self-flashing through ciphertext handshake The method and device adopt a two-way authentication mechani...

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Abstract

The invention discloses a method and device for improving terminal self-flashing safety through ciphertext handshaking. The method includes the steps that A, a terminal is connected with a flashing tool so as to enter a downloading preparation mode, feature information of the terminal and feature information of the flashing tool are respectively encrypted through secret keys randomly generated, and therefore a terminal ciphertext and a tool ciphertext are generated; the terminal and the flashing tool interact, the terminal ciphertext and the tool ciphertext are analyzed, and therefore legality and matching performance of the terminal and the flashing tool are verified; B, after it is verified that the terminal and the flashing tool are legally matched, a downloading channel is started by the terminal and the flashing tool for downloading and flashing. According to the method and device, after it is verified that the terminal and the flashing tool are legal, the terminal and the flashing tool are controlled to start the downloading channel to conduct downloading and flashing; due to the fact that the secret keys used for encryption each time are generated randomly, the deciphering difficulty is greatly increased, and the ciphertexts can be prevented from being deciphered; meanwhile, downloading and flashing can be conducted only after the terminal and the flashing tool are legally matched, so that safety is improved.

Description

Technical field [0001] The present invention relates to the technical field of flashing, and in particular to a method and device for increasing the security of terminal self flashing through ciphertext handshake. Background technique [0002] In order to reduce the inconvenience and repair cost of manual maintenance, many users often choose to self-flash the machine to customize or clean the terminal system. But often because of improper operation, the flashing machine fails or even cannot be turned on. Some online flashing tools (usually flashing applications) often directly enter the download flashing mode when flashing the terminal without any lock protection measures. Although these flashing tools can open the download channel through instructions to block OEM (Original Equipment Manufacturer) Equipment manufacturer) tool, but the instruction is not encrypted, it is easy to be modified and cause user data loss, and the security is not high. [0003] Some anti-flashing soluti...

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Application Information

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IPC IPC(8): H04L9/32H04L29/06G06F9/445
Inventor 董保同王丙权向林
Owner YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
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