Encryption and decryption method of novel matrix operation panel with binding function with numerical control machine tool

Abstract

The invention discloses an encryption and decryption method of a novel matrix operation panel with a binding function with a numerical control machine tool. The operation panel needs to confirm the key information of the machine tool side before each start-up operation. When a key extracted after each start-up of the machine tool is consistent with a key before machine tool binding, the machine tool is authorized to use normally, or otherwise the machine tool is in a protected state, and the key is randomly generated by a single chip microcomputer on the operation panel when binding operationis carried out according to a certain rule. According to the encryption algorithm of the single chip microcomputer in the operation panel, a machine tool manufacturer or vendor is given a first digital code at the time that the rule is made, a production serial number is set for the operation panel; each serial number product corresponds to a unique second digital code automatically generated by aprogram algorithm or given at the individual discretion, the two digital codes are written into the single chip microcomputer at the same time to participate in the encryption algorithm and the decryption algorithm. Without either of the two sets of digital codes, it is impossible to get an encryption or decryption result, which can effectively prevent software from being subjected to violent analysis and decoding.

Description

Technical field [0001] The invention relates to the technical field of a matrix type operation panel of a numerically controlled machine tool, in particular to an encryption and decryption method of a novel matrix type operation panel with a function of binding with a numerically controlled machine tool. Background technique [0002] In view of the application of the matrix encryption operation panel widely used in the industry, we can gradually discover that it has relatively large defects. Firstly, from the analysis of the mechanism design, the currently widely used matrix encryption operation panel can be encrypted according to the different products. The design and manufacturing companies formulate different encryption algorithms, such as the confidential algorithm of the A set of schemes used by the A product manufacturer, the confidential algorithm of the B set of schemes used by the B product manufacturer, and there is no algorithmic commonality between the secret algorithm...

AI Technical Summary

Problems solved by technology

[0003] 1. The operation panel products of all manufacturers are in the state of full solution before leaving the factory. If the product on the customer's machine has been set to a locked state, then as long as it is replaced with a similar product from the same manufacturer, the machine tool will automatically be released. In an unlocked state, the degree of protection of the financial interests of the machine tool manufacturer or seller is equal to a complete loss. This situation will occur in the direct replacement of the product, or in the process of replacing it due to maintenance. These It is impossible to track the process by the machine tool manufacturer or seller's finances, because each department has its own independent operation process

[0004] 2. Similarly, if the product on the customer's local machine has been set to a locked state, certain types of people will take some means to artificially replace the corresponding product in order to pursue personal interests, such as supplier A used by the current machine tool If the product has been confirmed to be encrypted, someone will use the product of supplier B to directly put it on, and then slightly modify a part or directly replace it, then this situation is also harmful to the machine tool manufacturer or seller. The degree of protection of financial interests is tantamount to a complete loss

Images