Image information security processing method and device

Abstract

The invention provides an image information security processing method and device, and the method comprises a collection step: enabling a first client to collect N time sequence images Ti through employing image collection equipment, and an encryption step: carrying out the encryption of the N time sequence images Ti through employing a first encryption algorithm and a second encryption algorithm, and obtaining N encrypted images eTi; and a transmission step: enabling the first client to send the encrypted N images eTi to a second client. According to the invention, each image is encrypted by adopting two encryption algorithms based on different characteristic values, and the two encryption algorithms consume different system resources, so that the key part of the image can be encrypted by using the encryption algorithm consuming more system resources, the common part of the image is encrypted by using an encryption algorithm consuming less system resources, and the computing resources of the terminal are saved while the image security is ensured.

Description

technical field [0001] The invention relates to the technical field of data security, in particular to a method and device for securely processing image information. Background technique [0002] In the prior art, the same encryption algorithm is used to encrypt the same image. If the required security is high, the encryption algorithm consumes more system resources, and there is no one that reduces the consumption of system resources without reducing image security. Sexual encryption method, this is a major defect in the prior art. [0003] In the prior art, there are schemes to encrypt different parts of a document using different encryption methods. However, images are more complex than documents, and document encryption methods are not suitable for image encryption. [0004] In the prior art, no simple and efficient image segmentation strategy and criteria for judging different encryption methods are proposed, or the calculation method is complicated, which has no pract...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the same encryption algorithm is used to encrypt the same image. If the required security is high, the encryption algorithm consumes more system resources, and there is no one that reduces the consumption of system resources without reducing image security. unique encryption method, which is a major flaw in the prior art

[0003] In the prior art, there are schemes to encrypt different parts of the document using different encryption methods. However, the image is more complex than the document, and the encryption method of the document is not suitable for the encryption of the image.

[0004] In the prior art, no simple and efficient image segmentation strategy and judging criteria for different encryption methods are proposed, or the calculation method is complicated, which has no practical application value at all

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