Software encryption method

Abstract

The invention relates to a software encryption method. The method comprises a software preparation encryption stage and a software operation decryption stage, The method is characterized by comprisingthe following steps of: a software preparation encryption stage: calculating encrypted data through operation by using an internal program of a factory, storing the calculated encrypted data in a storage chip, erasing the internal program of the factory in an MCU (Microprogrammed Control Unit), and writing the erased internal program into a formal application program; And a software operation decryption stage: when the software is operated, the MCU reads the encrypted data from the storage chip, calculates the encrypted data by adopting an algorithm, compares an algorithm result with the encrypted data read from the storage chip, continues to operate the application program if a comparison result is consistent, and quits the operation of the application program if the comparison result isinconsistent. The method has the advantages that the encryption result cannot be stored in the storage device at first, the unique correspondence between the encrypted data and the MCU enables a thief not to pirate software, and compared with a simple single-machine encryption mode, the method is more reliable.

Description

Technical field: [0001] The invention relates to a software encryption method, which belongs to the technical field of software encryption. Background technique: [0002] Software is a collection of computer data and instructions organized in a specific order. Generally speaking, software is divided into system software, application software, and middleware between the two. Simply put, software is a collection of programs and documents. body. Embedded software is the operating system and development tool software embedded in the hardware, widely used in national defense, industrial control, household, commercial, office, medical and other fields, such as our common mobile phones, handheld computers, digital cameras, set-top boxes, MP3, etc. They are all the results of intelligent transformation of traditional products with embedded software technology. [0003] In recent years, with the wide application of computer and Internet technology, the field of software preparation...

AI Technical Summary

Problems solved by technology

The USB interface circuit in this application can be understood as an electronic dog encryption device, and its described encryption module, USB interface circuit and storage module must adopt the single-chip microcomputer of the same model, containing encryption algorithm software and storage space, and USB interface. In terms of encryption, the reliability is up to standard, but the additional USB devices, interfaces, and multi-chip microcontrollers undoubtedly increase the cost, and the USB devices are easily damaged if they are plugged and unplugged too many times. If the same type of microcontroller cannot be purchased, it will be damaged The newly purchased single-chip machine cannot be decrypted due to the model mismatch, which eventually makes the software unusable

[0005] The problems existing in the existing technology are: the software encryption method is simple, and it is easy to be pirated; most of them use electronic dog software and hardware encryption methods, and the cost is too high

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