A method and apparatus for processing a device shadow, an electronic device, and a medium

Abstract

The application provides a device shadow processing method and device, electronic equipment and medium, and relates to the technical field of information security. The method comprises the following steps: determining a first key and a second key corresponding to the first key based on a first sub-key and a second sub-key obtained by performing key division on an initial key; performing data division on device data of a current device to obtain a plurality of data blocks and a position sequence between the data blocks; performing exclusive or operation on the plurality of data blocks and the second key respectively to obtain an exclusive or result corresponding to each data block; processing the exclusive or results corresponding to the plurality of data blocks respectively to obtain a ciphertext of the device data; and synchronizing the device data, a data identifier of the device data, the ciphertext, and a corresponding relationship between the data identifier and the ciphertext to a preconfigured device shadow. The method can increase the security of the key, and relevant personnel can still safely use the device shadow when the device and the device shadow are disconnected.

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