Automatic identification method for secret related drawings

Abstract

The invention discloses an auto-authentication method of a secret-related drawing. By utilizing the characteristics of large information quantity, high security and strong anti-interference performance of a two-dimensional bar code, the relevant information of the secret-related drawing is stored in the two-dimensional bar code after compression and encryption and put on the drawing; and when a drawing file is intercepted, the two-dimensional bar code in the drawing is automatically detected by image processing techniques, and whether the code is secret-related information is judged after demangling. The method comprises the detailed steps of the manufacture of the two-dimensional bar code; the detection of the two-dimensional bar code; the binaryzation of the two-dimensional bar code; fast inverse perspective transformation; secret-related information authentication and the like. The method effectively solves the auto-authentication problem of the secret-related drawing and can complete the authentication to the secret-related drawing quickly and reliably.

Description

Technical field [0001] The invention relates to an automatic identification method of secret-related drawings, which belongs to the field of information security and automatic identification. Background technique [0002] In the information age, both military research institutions and civilian enterprises are maximizing the use of information technology to improve the efficiency of R&D and design. Design drawings of military or civilian products, as core secrets, often exist in the form of electronic files. [0003] In order to avoid unintentionally or maliciously leaking confidential information during network transmission and media exchange, software is often used to monitor network transmission and media exchange files. For example, install a firewall in the mail receiving and dispatching system to intercept the transmitted files for judgment. Among them, how to automatically identify whether the content of an image file is confidential is its key technology. The identificatio...

AI Technical Summary

Problems solved by technology

If image analysis technology is used to automatically identify each element of the image file, and then compare it with the existing model to determine whether it is confidential, the technology is difficult and difficult to implement

Therefore, the identification and interception of text-based confidential information is very effective, such as Word documents, but it cannot solve the identification of confidential drawings based on image information.

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