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基于单片机的移动存储器访问控制系统设计

发表时间:2021-01-08  浏览量:417  下载量:64
全部作者: 韩昌昊,马莉,胡方舟,贾忠田
作者单位: 济南大学信息科学与工程学院;济南大学科技处
摘 要: 与传统移动存储器的安全策略不同,本文提出了一个基于STC89C52单片机(single-chip microcomputer,SCM)的移动存储器访问控制方案。该访问控制系统包括USB接口模块、核心存储模块、连通性控制模块以及密码输入模块。USB接口模块经数据线连接于核心存储模块与电脑主机之间,连通性控制模块经供电线分别与USB接口模块和核心存储模块相连,密码输入模块接至连通性控制模块,用于控制供电电路的连通性。通过对供电电路的连通性控制进行身份认证,实现对供电电路的连通性掌控,使得对存储器的访问控制与数据加解密脱钩。实验证明电路连通性闭合瞬间完成,系统应用无需考虑操作系统的适配性,具有较高的用户体验水平、安全级别与系统兼容性。
关 键 词: 计算机应用;访问控制逻辑;供电策略;单片机
Title: Design of mobile memory access control system based on single-chip microcomputer
Author: HAN Changhao, MA Li, HU Fangzhou, JIA Zhongtian
Organization: School of Information Science and Engineering, University of Jinan; Department of Science and Technology, University of Jinan
Abstract: Different from the security strategy of traditional mobile memory, a mobile memory access control scheme based on STC89C52 single-chip microcomputer (SCM) is proposed in this paper. It is composed of USB interface module, core memory module, connectivity control module and password input module. The USB interface module is connected between the core memory module and the computer host by the data line. The connectivity control module is connected to the USB interface module and the core memory module through the power supply wire, respectively. The password input module attaches to the connectivity control module to control the connectivity of the power supply circuit. Through the connection operation’s authentication of the power supply circuit, the connectivity control of the power supply circuit is realized. Thus, the access control of the memory is decoupled from the data encryption and decryption. Experimental results show that the circuit connectivity is completed at instant. Furthermore, the adaptability of the operating system does not need to be considered in the proposed system. Therefore, the system proposed in this paper has higher user experience level, security level and system compatibility.
Key words: computer applications; access control logics; power supply policies; single-chip microcomputer
发表期数: 2020年12月第4期
引用格式: 韩昌昊,马莉,胡方舟,等. 基于单片机的移动存储器访问控制系统设计[J]. 中国科技论文在线精品论文,2020,13(4):411-421.
 
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