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A tamper-proof storage method of electronic material evidence based on group signature

A group signature and anti-tampering technology, applied in the direction of digital data protection, etc., can solve the problem of not being able to guarantee that electronic evidence will not be maliciously tampered with, achieve good anti-forgery and usability, and improve the effect of authenticity and integrity

Active Publication Date: 2019-01-25
TIANJIN UNIV
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems in the prior art, the present invention provides a tamper-proof storage method for electronic evidence based on group signatures, which solves the problem that electronic evidence in the prior art needs to modify wrong data or add electronic evidence data in the later stage, and the electronic evidence cannot be guaranteed. The problem of physical evidence not being maliciously tampered with

Method used

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  • A tamper-proof storage method of electronic material evidence based on group signature
  • A tamper-proof storage method of electronic material evidence based on group signature

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0019] refer to Figure 1-2 , the present invention provides a method for tamper-proof storage of electronic evidence based on group signatures, said method comprising the following steps:

[0020] S1, perform hash processing on the electronic physical evidence data, forensics time stamp, and forensic personnel information, and copy the original data and the hash value;

[0021] S2, the copied data is transmitted to the forensic server, and the hardware storage uses a disk array for data mirroring;

[0022] S3, the server establishes a group signature scheme, and all forensic personnel join the group as group administrators, and add physical evidence information to the group as group members;

[0023] S4, the server randomly generates and stores the verification code of the ...

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Abstract

The invention discloses a tamper-proof storage method of electronic material evidence based on group signature. The method is based on group signature technology, and can ensure that electronic material evidence is not tampered with maliciously under the condition that erroneous data need to be modified or electronic material evidence data need to be added in the later period through the combination of software and hardware, and has good forgery-proof property and usability. The method adopts the disk array as the data mirror, which can effectively improve the authenticity and integrity of theelectronic material evidence data.

Description

technical field [0001] The invention relates to the technical field of network security and computer evidence collection, in particular to a group signature-based tamper-proof storage method for electronic evidence. Background technique [0002] With the development of computer technology, illegal and criminal activities on the Internet are spreading frequently and frequently, and the types and forms of crimes are emerging in an endless stream. However, electronic data existing in information equipment has entered the judicial field as a new form of evidence, namely electronic evidence. The number of cases that require electronic evidence to determine legal facts is gradually increasing, so ensuring the integrity and authenticity of electronic evidence is of great significance for future legal determination. The existing electronic evidence preservation method mainly transfers the physical evidence by printing or copying, and then performs verification and encryption for pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/64
CPCG06F21/64
Inventor 潘刚李煜泽贾永恒刘敬成
Owner TIANJIN UNIV
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