2results about How to "Good encryption" patented technology

The application provides an image encryption method based on ring rotation and generalized Feistel cipher structure. The method comprises the following steps: generating a chaotic sequence by a hyperchaotic Chen system, and performing ring rotation twice on a plaintext image to realize efficient global scrambling; then, a one-dimensional chaotic system 1DL-SCS is used to perform line-by-line index scrambling on the image, and then the pixel points are redistributed column by column to further break the correlation between the pixels; in the diffusion stage, the plaintext is divided into four parts, substituted into an improved generalized Feistel cipher structure for calculation, and further divided into two parts in the round function, so that the diffusion efficiency is greatly improved, and through two rounds of iteration operation, a good encryption effect can be obtained, and the security is high.

This utility model belongs to the field of power equipment technology and discloses an electronic tag device and electronic tag built into the housing of a current transformer. The electronic tag device built into the housing of the current transformer includes a base, a protective shell, and a fixing component. The base is used to store the electronic tag body; the protective shell is used to protect the electronic tag body; the fixing component includes a movable block, a limiting block, a limiting groove, an elastic element, and a guide post. The movable block is connected to the base, the limiting block is connected to the movable block, the limiting groove is formed in the base, the elastic element is clamped between the movable block and the base, and the guide post is connected to the base. With the fixing component, the protective shell can be removed, which allows for convenient encryption, updating, or backup of the electronic tag, ensuring the accuracy and timeliness of information and preventing safety accidents caused by information lag or errors.