基于安全存储的抗攻击关键技术研究

发布时间：2018-06-28 09:28

本文选题：安全存储 + 抗攻击技术　；参考：《天津大学》2014年硕士论文

【摘要】：随着信息时代的到来，海量信息存储、传播和交流正在深刻地改变人类的生产生活方式。然而，信息技术在追求高性能、高速度的同时，必须重视国家信息安全和个人隐私安全。存储器作为信息存储和交流的核心器件，已经成为攻击者窃取信息和分析数据的重要来源。因此，如何实现信息的安全存储是当前国内外相关领域的研究热点，而且国内自主研究基于安全存储的抗攻击技术能够为国防安全和军事建设提供强有力的保证。在此背景下，本文从介绍攻击手段入手，，主要研究了存储芯片的抗攻击技术和安全防护方法以及安全存储系统的低功耗策略。针对入侵式及半入侵式攻击，分析其共同特点并提出相应的防护机制；利用多层陶瓷封装技术和柔性印制电路板技术，在封装体或其内部设计并实现金属传感网络，用于保护封装完整性；利用半导体器件的温度特性和光敏特性，设计传感器芯片，实时检测存储芯片所处的环境变量。此外，在本系统中嵌入微型高温锂亚硫酰氯电池并设计极低功耗RC振荡器和基于振荡器的系统休眠电路，保证了传感芯片能够长期有效工作。由于带隙基准源的温度偏差会影响整个系统的准确性，论文还介绍了带有二阶温度补偿的基准电路结构。采用Global Foundry0.18μm1P6M标准CMOS工艺进行设计并流片，通过实验验证，给出了温度、可见光、封装完整性的测试结果，其中温度传感器的温度系数为-4.47mV/oC，线性度良好；极低功耗RC振荡器的频率为30.74kHz，电流约170nA；系统休眠电路能够产生占空比为1:4的休眠信号。在一定温度范围内(-55oC~125oC)，芯片能够实现对温度、可见光以及封装完整性实时检测的功能。
[Abstract]:With the arrival of the information age, mass information storage, communication and communication are profoundly changing the human way of production and life. However, information technology must pay attention to national information security and personal privacy while pursuing high performance and high speed. As the core device of information storage and communication, the memory has become an attacker to steal. Therefore, how to realize the safe storage of information is a hot spot in the related fields at home and abroad, and the domestic independent research on the anti attack technology based on the safe storage can provide a strong guarantee for the security and military construction of national defense.
In this context, starting with the introduction of attack means, this paper mainly studies the anti attack technology and security protection methods of the storage chip and the low power consumption strategy of the secure storage system. In view of the intrusive and semi intrusive attack, it analyzes its common characteristics and puts forward the corresponding protection mechanism, and uses the multilayer ceramic packaging technology and the flexible printed electricity. A metal sensor network is designed and implemented in the package or its interior to protect the integrity of the package. Using the temperature and photosensitive characteristics of the semiconductor device, the sensor chip is designed to detect the environmental variables in the memory chip in real time. In addition, the micro high temperature lithium sulfonyl chloride battery is embedded in the system and is very low in design. The power RC oscillator and the oscillator based dormancy circuit ensure that the sensor chip can work effectively for a long time. The temperature deviation of the bandgap reference will affect the accuracy of the whole system. The paper also introduces the reference circuit structure with two order temperature compensation.
The test results of temperature, visible light and encapsulation integrity are given by Global Foundry0.18 m1P6M CMOS technology. The temperature coefficient of the temperature sensor is -4.47mV/oC, the linearity is good, the frequency of the extremely low power RC oscillator is 30.74kHz, the current is 170nA, and the system dormancy circuit can be used. A dormant signal with a duty cycle of 1:4 is produced. Within a certain temperature range (-55oC~125oC), the chip can perform real-time detection of temperature, visible light and package integrity.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP333;TP309

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