Multimedia electronic data forensic report and generating and displaying method and system thereof

Abstract

The invention relates to a multimedia electronic data forensic report and a generating and displaying method and system thereof. The system comprises a multimedia electronic data forensic report collecting device, a multimedia electronic data forensic report generating device and an authentication displaying device. Data files and corresponding header files are combined to generate a multimedia report, wherein the data files are compressed by adopting a compression algorithm, a verification method and an irreversible encryption algorithm when the forensic report is generated, and data decryption and self-extracting verification are carried out on the header files when the forensic report is displayed. The method and system can ensure the integrity, the tamper-proofing performance and the safety of multimedia electronic data as a whole. Whether electronic data evidences are text or audio-visual materials, integrity technological tamper-proofing can be carried out on the electronic data evidences through a sealed tamper-proofing device, an electronic evidence displaying and authentication mechanism is further added, and the processing process is safer and more concealed.

Description

technical field [0001] The invention belongs to the field of electronic data evidence and relates to the fixing, transmission and reproduction of multimedia electronic data evidence. Background technique [0002] In the face of today's informatization and digitization, the collection and fixation of electronic data evidence requires the original principle of electronic evidence, and the integrity and validity of electronic evidence must be guaranteed from generation to output. Electronic evidence of traditional text content can be printed, indicating the time of evidence collection, evidence collection personnel, data source, etc., and stamped with the official seal, and then be fixed and preserved in the form of documentary evidence to prevent the integrity of the electronic evidence fixing process from being damaged; Traditionally, there are audio-visual materials, such as evidence including audio and video, and the methods of taking photos and videos are used to fix the e...

AI Technical Summary

Problems solved by technology

There are weak areas in the existing technology for the formation of electronic evidence as follows: (1) There is no corresponding information technology solution for how to fix multimedia electronic data evidence; (2) Multimedia electronic data evidence involves a large amount of audio and video materials. method to sign one by one, then a file and the corresponding signature can be deleted at the same time during the transmission process without being discovered, thereby destroying the integrity of the evidence; if the audio and video materials involved are packaged and signed as a whole, is there a standard for the display problem involved? Solution; (3) The encryption mechanism is not added in the process of digital signature, and there may be intrusion of malicious programs, which will destroy the validity of the signature

Images