Image-based confidential information spreading method, device and system

Abstract

The invention discloses an image-based confidential information spreading method. The method comprises the steps of obtaining a host image and information needing to be encrypted; performing fingerprint extraction on the host image, and judging whether fingerprints of the host image exist in a database or not; if fingerprints of the host image do not exist in the database, generating a decoding secret key, and storing fingerprints of the host image and the generated decoding secret key in the database; encoding and converting a binaryzation sequence of the information needing to the encrypted to generate a parasitic image; adopting the generated decoding secret key as a decoding input variable, inserting the parasitic image into the host image, and completing preparation of a confidential image. The image-based confidential information spreading method can enable the image to carry target resources, the target resources can be obtained without re-access of the Internet, information consistency is ensured, tamper-proofing is achieved, tension of the overall image vision is ensured, and inserted information cannot be seen by naked eyes. The invention further provides an image-based confidential information spreading device and system.

Description

technical field [0001] The present invention relates to the technical field of information encryption, in particular to an image-based secret information dissemination method, device and system. Background technique [0002] At present, the existing image-based information dissemination systems often add visually perceptible symbols, signs or signals such as character information, marking symbols, one-dimensional codes or two-dimensional codes on images to access the resource ontology of image promotion. There are three main disadvantages in this way: first, information and resources are separated, and the visually visible information is not the resource itself that the observer wants to obtain. It needs to visit the Internet again to obtain the target resource. For example, a picture may have an mp3 URL Or the corresponding QR code, but what the user wants to get is actually an mp3 instead of this URL or QR code; second, it affects the visual tension of the overall image. I...

AI Technical Summary

Problems solved by technology

There are three main disadvantages in this way: first, information and resources are separated, and the visually visible information is not the resource itself that the observer wants to obtain. It needs to visit the Internet again to obtain the target resource. For example, a picture may have an mp3 URL Or the corresponding QR code, but what the user wants to get is actually an mp3 instead of this URL or QR code; second, it affects the visual tension of the overall image. In order to allow the image to carry character information, QR code or other information, often A certain pixel of the original image needs to be replaced, which affects the integrity and aesthetics of the image; third, the security is insufficient, and the plaintext information is easy to replace or tamper, and the original information can be replaced with phishing information, resulting in unsafe access; Fourth, the form of embedded information is limited. The existing image-based information dissemination system can only carry image information such as character text information or two-dimensional codes, and the image itself cannot carry audio or more different pictures.

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