Batch transmission encryption method for slice digital images

The invention relates to the technical field of pathology digital transmission management, in particular to a batch transmission encryption method for slice digital images. The method is suitable for images scanned by a slice scanner and slice digitized images imaged by a microscope camera. The method is used for scanning by using a slice scanning device or imaging by using a microscope camera to obtain a slice digitized image. The method comprises the following steps: scanning by using a slice scanning device or imaging by using a microscope camera to obtain a slice digitized image; cutting the plurality of digital images of the plurality of slices; carrying out random exchange and XOR diffusion operation on the cut image blocks and generating an index and a secret key; re-splicing the image blocks into a large image and cutting the large image into a group of small images according to different sizes; enabling the transmitting end and the receiving end to establish connection and transmit the index, the sec