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Sensors 2015, 15(10), 26251-26266;

PUFKEY: A High-Security and High-Throughput Hardware True Random Number Generator for Sensor Networks

School of Optical and Electronic Information, Huazhong University of Science and Technology, No.1037 Luoyu Road, Wuhan 430074, China
Author to whom correspondence should be addressed.
Academic Editor: Leonhard M. Reindl
Received: 24 June 2015 / Accepted: 9 October 2015 / Published: 16 October 2015
(This article belongs to the Section Sensor Networks)
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Random number generators (RNG) play an important role in many sensor network systems and applications, such as those requiring secure and robust communications. In this paper, we develop a high-security and high-throughput hardware true random number generator, called PUFKEY, which consists of two kinds of physical unclonable function (PUF) elements. Combined with a conditioning algorithm, true random seeds are extracted from the noise on the start-up pattern of SRAM memories. These true random seeds contain full entropy. Then, the true random seeds are used as the input for a non-deterministic hardware RNG to generate a stream of true random bits with a throughput as high as 803 Mbps. The experimental results show that the bitstream generated by the proposed PUFKEY can pass all standard national institute of standards and technology (NIST) randomness tests and is resilient to a wide range of security attacks. View Full-Text
Keywords: RNG; PUF; high security; high throughput RNG; PUF; high security; high throughput

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Li, D.; Lu, Z.; Zou, X.; Liu, Z. PUFKEY: A High-Security and High-Throughput Hardware True Random Number Generator for Sensor Networks. Sensors 2015, 15, 26251-26266.

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