Flash Memory for Ubiquitous Hardware Security Functions: True Random Number Generation and Device Fingerprints
Flash Memory for Ubiquitous Hardware Security Functions: True Random Number Generation and Device Fingerprints
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DOI：
10.1109/sp.2012.12
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发表时间：
2012-05
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影响因子：
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通讯作者：
Yinglei Wang;Wing-Kei S. Yu;Shuo Wu;G. Malysa;G. Suh;E. Kan
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文献类型：
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作者：
Yinglei Wang;Wing-Kei S. Yu;Shuo Wu;G. Malysa;G. Suh;E. Kan
我们证明了未经修改的商用闪存可以提供两个重要的安全功能：真随机数生成和数字指纹识别。利用随机电报噪声(高扩展闪存单元中的一种量子噪声源)，能够以高达10Kbit/秒的速率生成高质量的真随机数。一种基于部分编程的方案利用阈值电压的工艺变化来允许快速生成许多可用于识别和认证的唯一指纹。这两种方案都不需要更改闪存芯片或接口，也不需要额外的硬件。
We demonstrate that unmodified commercial Flash memory can provide two important security functions: true random number generation and digital fingerprinting. Taking advantage of random telegraph noise (a type of quantum noise source in highly scaled Flash memory cells) enables high quality true random number generation at a rate up to 10Kbits / second. A scheme based on partial programming exploits process variation in threshold voltages to allow quick generation of many unique fingerprints that can be used for identification and authentication. Both schemes require no change to Flash chips or interfaces, and do not require additional hardware.