Method for protecting embedded type device software

Abstract

The invention discloses a method for protecting embedded type device software. The method comprises the steps that a piece of storage space is drawn from dynamic memory of a network device to be used for storing check codes; the software is started, burn information is read, and the burn information comprises MAC (media access control) addresses and a serial number; the MAC addresses and the serial number are subjected to checking; if the checking fails, the operation enters a check code input mode, the newly input check codes are written into the dynamic memory, and the software is started again; and if the checking succeeds, the software is started normally. According to the method for protecting the embedded type device software, a check method of the MAC addresses is utilized, characteristics that the network device is required to burn the MAC addresses and the MAC addresses are globally unique are utilized, so that software validity checking and copy protection checking are simultaneously performed during a process of MAC burning; without device networking, the checking can be performed and the MAC addresses are bound; but by means of encryption algorithm calculation, larger irreversibility of the burn information is achieved.

Description

technical field [0001] The invention relates to a software protection method, in particular to an embedded device software protection method. Background technique [0002] Traditional network access devices have simple functions, and usually the software is directly solidified in the chip. Embedded software has transformed from a simple hardware add-on product to a value-added product that highlights the market competitiveness of hardware products. It can not only be used as an add-on product to hardware, but also It can be commercialized separately as a function extension. Under such a prospect trend, the copyright protection of the software itself is more important than ever. [0003] The complexity of home gateway equipment is getting higher and higher, and the functions that can be realized are also increasing. But the ensuing problem is that due to its characteristics, embedded software is usually solidified in the hardware device and stored in the flash directly by b...

AI Technical Summary

Problems solved by technology

[0009] However, the above two protection methods have their own disadvantages.

[0010] The first verification method requires that the network device must have a user interface, which can provide the user with the input and storage of the verification serial number; and the user can input a large number of the same serial number, and the software cannot recognize it.

[0011] The second verification method is more flexible than the first method, but if the network device used by the customer cannot be connected to the Internet and is only used in the internal network, software verification will not be possible; and this method has hidden dangers of leaking user information and poor security

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