An Active Defense Method for Encrypted Information

Abstract

The invention discloses an active defense method for encrypting information, and the method comprises the steps: encrypting real information by using a strong key to obtain a first ciphertext, and encrypting false information and a penetration code by using a weak key to obtain a second ciphertext; merging the first ciphertext and the second ciphertext into one file; decrypting the second ciphertext by using the weak key to obtain false information and penetration code when an attacker steals the file; synchronously starting the penetration code when the fake information is opened by the attacker; reading the key information of the attacker through the penetration code, and returning the key information to the attacker, so that an attacked person uses the key information of the attacker for backtracking, investigation and evidence obtaining. Considering the characteristics that important information is usually stored in a confused manner and the attacker will attempt decryption after stealing the file, the present invention proposes the active defense method for encrypting information, so the method can not only encrypt the information, but also obtain evidence and even counterattack the attacker when attacked, thereby realizing low-cost and fast tracking.

Description

technical field [0001] The invention belongs to the field of cyberspace security, and more specifically relates to an active defense method for encrypted information. Background technique [0002] With the increasing popularity of the Internet and the increasing dependence of society on the Internet, network security issues are also increasing. Although people usually store information encrypted, it is still possible to be stolen or even deciphered. In the past, the encryption technology was only a passive defense. When encountering acts such as theft and deciphering, it is difficult for the victim (attacked) to implement further defense measures. Even knowing who the attacker is, sometimes suffers from being unable to provide evidence. Therefore, it is necessary to combine the functions of confidentiality, evidence collection, and even counterattack to design active defense technologies. [0003] In order to track the identity of the attacker, people have developed a vari...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides an active defense method for encrypting information, thereby solving the technical problems of the prior art such as high overhead, high bandwidth consumption and poor adaptability

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