A Trustworthy Key Generation Prototype Based on DDR3 PUF for Wireless Sensor Networks

作者：Liu Wenchao; Zhang Zhenhua; Li Miaoxin; Liu Zhenglin^*

来源：Sensors (Switzerland), 2014, 14(7): 11542-11556.

DOI：10.3390/s140711542

• WSN
• PUF
• DDR3
• key generation
• fuzzy extractor

Secret key leakage in wireless sensor networks (WSNs) is a high security risk especially when sensor nodes are deployed in hostile environment and physically accessible to attackers. With nowadays semi/fully-invasive attack techniques attackers can directly derive the cryptographic key from non-volatile memory (NVM) storage. Physically Unclonable PUF) is a promising technology to resist node capture attacks, and it also provides a low cost and tamper-resistant key provisioning solution. In this paper, we designed a PUF based on double-data-rate SDRAM Type 3 (DDR3) memory by exploring its memory decay characteristics. We also described a prototype of 128-bit key generation based on DDR3 PUF with integrated fuzzy extractor. Due to the wide adoption of DDR3 memory in WSN, our proposed DDR3 PUF technology with high security levels and no required hardware changes is suitable for a wide range of WSN applications.

• 出版日期2014-7
• 单位华中科技大学