Watermark embedding apparatus and method

Abstract

The invention discloses a watermark embedding device and a watermark embedding method, comprising an identity authentication module, which is used for acquiring the identity information of a user; Thewatermark generation module is connected to the identity authentication module, and is used for generating the watermark according to the identity information. The watermark embedding module is connected to a watermark generation module, an input interface and an output interface, and is used for acquiring original print data from the input interface, embedding the watermark into the original print data to generate watermarked print data, and sending the watermarked print data to the output interface. The invention can add the hidden watermark in the printed data, realizes the tracking and tracing of the confidential document, and achieves the requirement of the tracking of the confidential document.

Description

technical field [0001] The present invention relates to the field of information security, and more specifically, to a watermark embedding device and method. Background technique [0002] The security printers in the prior art mainly use clear printing and imaging information to prevent information duplication and leakage on the printer side, and it is difficult to realize continuous tracking of printed files. The file tracking method in the prior art is mainly realized by recording and printing information with a printing computer, and this information will form a new information source, further causing the possibility of leakage of confidential information. [0003] There is no effective solution to the problem that the security printers in the prior art cannot realize the tracking and backtracking of files. Contents of the invention [0004] In view of this, the purpose of the embodiments of the present invention is to propose a watermark embedding device and method, w...

AI Technical Summary

Problems solved by technology

[0002] The security printers in the prior art mainly use clear printing imaging information to prevent information duplication and leakage on the printer side, and it is difficult to realize continuous tracking of printed files

The file tracking method in the prior art is mainly realized by recording and printing information with the computer that prints, this information will form a new information source, further causing the possibility of leakage of confidential information

[0003] Aiming at the problem that the security printers in the prior art cannot realize the tracking and backtracking of files, there is no effective solution yet

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