IMAGE TRAINING DEVICE, CRUM UNIT AND METHOD FOR COMMUNICATING CRYPTOGRAPHIC DATA AND AUTHENTICATION

摘要

unit that uses operating system and image training device that uses it. the present invention relates to a chip mountable in a consumer replaceable unit (crum) monitoring memory unit in an image forming function that includes a central processing unit (cpu) with an operating system (os) from same, which is separated from an os of the image formation apparatus, in order to carry out at least one authentication and communication of cryptographic data with a main body of an image formation apparatus executing a cryptographic algorithm corresponding to a state of fit between a plurality of pre-provided cryptographic algorithms, using the same ones. in this way, the security of a unit on which the chip is mounted can be enhanced, and random changes to the unit's data can be avoided.