Data processing method and device of non-volatile memory, storage medium

Abstract

The present disclosure provides a data processing method and a device for a nonvolatile memory and a storage medium. The data processing method comprises: performing a full erase operation on the nonvolatile memory if a full erase operation command is received, such that the nonvolatile memory enters an initial state, wherein the initial state refers to a state in which all operations performed on the nonvolatile memory are valid; in the initial state, storing a data if the data is written in the memory is detected, wherein the data comprises a flag information; detecting the flag information if a data readout command triggered by a user is received; and identifying that the nonvolatile memory is in a default state and prohibiting the user from reading the data stored in the nonvolatile memory if the flag information is detected as an unreadable flag information.

Description

technical field [0001] The invention belongs to the technical field of data processing, and in particular relates to a data processing method and device of a nonvolatile memory, and a storage medium. Background technique [0002] With the development of integrated circuits, programmable logic devices such as field-programmable gate arrays (Field-Programmable Gate Array, FPGA) have been increasingly applied to various fields. Since FPGA is a programmable logic device, users can design their own data flow files and store them in the internal memory of FPGA to make FPGA perform corresponding functions. For the FPGA, its internal memory is generally a non-volatile memory, and the data of the non-volatile memory will not be lost after power-off, which will give criminals an opportunity to directly convert the FPGA device from Remove it from the system circuit board to study the way to crack it, and then read out the data in the FPGA. [0003] In order to solve the above problem...

AI Technical Summary

Problems solved by technology

However, although the above method can encrypt data, the device is readable by default, which will allow criminals to find the security bit in the device through cracking technology. After finding the security bit, as long as the security bit is Destroying the device can make the device readable, and then read the data on the device

What's more, when the security bit is designed with only one bit, or the position of the security bit is relatively concentrated, through precise positioning and erasing, it is possible to just erase the security bit, easily crack the data, and greatly reduce the data storage capacity. security

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