Efficient physical layer key generation technique in wireless communications

Wireless communications between two devices can be protected by secret keys. However, existing key generation schemes suffer from the high bit disagreement rate and low bit generation rate. In this paper, we propose an efficient physical layer key generation scheme by exploring the Received Signal Strength (RSS) of signals. In order to reduce the high mismatch rate of the measurements and to increase the key generation rate, a pair of transmitter and receiver separately apply adaptive quantization algorithm for quantifying the measurements. Then, we implement a randomness extractor to further increase key generation rate and ensure randomness of generated of keys. Several real-world experiments are implemented to verify the effectiveness of the proposed scheme. The results show that compared with the other related schemes, our scheme performs better in bit generation rate, bit disagreement rate, and randomness.

[1]  Lajos Hanzo,et al.  Learning-Aided Physical Layer Authentication as an Intelligent Process , 2018, IEEE Transactions on Communications.

[2]  Elaine B. Barker,et al.  A Statistical Test Suite for Random and Pseudorandom Number Generators for Cryptographic Applications , 2000 .

[3]  Kyung-Ah Shim,et al.  A Survey of Public-Key Cryptographic Primitives in Wireless Sensor Networks , 2016, IEEE Communications Surveys & Tutorials.

[4]  Khalid A. Darabkh,et al.  A Physical-Layer Key Distribution Mechanism for IoT Networks , 2019, Mobile Networks and Applications.

[5]  Xianbin Wang,et al.  Three-Stage Stackelberg Game for Defending Against Full-Duplex Active Eavesdropping Attacks in Cooperative Communication , 2018, IEEE Transactions on Vehicular Technology.

[6]  Rong Jin,et al.  Delay Analysis of Physical-Layer Key Generation in Dynamic Roadside-to-Vehicle Networks , 2017, IEEE Transactions on Vehicular Technology.

[7]  I. Johnstone,et al.  Adapting to Unknown Smoothness via Wavelet Shrinkage , 1995 .

[8]  Berna Özbek,et al.  Key Error Rates in Physical Layer Key Generation: Theoretical Analysis and Measurement-Based Verification , 2017, IEEE Wireless Communications Letters.

[9]  Radomir S. Stankovic,et al.  The Haar wavelet transform: its status and achievements , 2003, Comput. Electr. Eng..

[10]  Chen Sun,et al.  Constructing Reciprocal Channel Coefficients for Secret Key Generation in FDD Systems , 2018, IEEE Communications Letters.

[11]  Gilles Brassard,et al.  Secret-Key Reconciliation by Public Discussion , 1994, EUROCRYPT.

[12]  Jianfeng Ma,et al.  Efficient and Consistent Key Extraction Based on Received Signal Strength for Vehicular Ad Hoc Networks , 2017, IEEE Access.

[13]  Yuexing Peng,et al.  Secret Key Generation Based on Estimated Channel State Information for TDD-OFDM Systems Over Fading Channels , 2017, IEEE Transactions on Wireless Communications.

[14]  Sneha Kumar Kasera,et al.  Robust uncorrelated bit extraction methodologies for wireless sensors , 2010, IPSN '10.

[15]  Junqing Zhang,et al.  Efficient Key Generation by Exploiting Randomness From Channel Responses of Individual OFDM Subcarriers , 2016, IEEE Transactions on Communications.

[16]  Junqing Zhang,et al.  Verification of Key Generation from Individual OFDM Subcarrier's Channel Response , 2015, 2015 IEEE Globecom Workshops (GC Wkshps).

[17]  Y.-W. Peter Hong,et al.  Vector Quantization and Clustered Key Mapping for Channel-Based Secret Key Generation , 2017, IEEE Transactions on Information Forensics and Security.

[18]  Jon W. Wallace,et al.  Automatic Secret Keys From Reciprocal MIMO Wireless Channels: Measurement and Analysis , 2010, IEEE Transactions on Information Forensics and Security.

[19]  Zhen Yang,et al.  The Security Network Coding System With Physical Layer Key Generation in Two-Way Relay Networks , 2018, IEEE Access.

[20]  Nianmin Yao,et al.  On the using of discrete wavelet transform for physical layer key generation , 2017, Ad Hoc Networks.

[21]  Li Zhou,et al.  Efficient Physical-Layer Secret Key Generation and Authentication Schemes Based on Wireless Channel-Phase , 2017, Mob. Inf. Syst..

[22]  Jonathan Rodriguez,et al.  A Physical-Layer Security Scheme by Phase-Based Adaptive Modulation , 2017, IEEE Transactions on Vehicular Technology.

[23]  Jingjing Huang,et al.  Dynamic secret key generation exploiting Ultra-wideband wireless channel characteristics , 2015, 2015 IEEE Wireless Communications and Networking Conference (WCNC).

[24]  Guihai Chen,et al.  Using Wireless Link Dynamics to Extract a Secret Key in Vehicular Scenarios , 2017, IEEE Transactions on Mobile Computing.

[25]  Yuan Ding,et al.  Experimental study on channel reciprocity in wireless key generation , 2016, 2016 IEEE 17th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC).

[26]  Lenan Wu,et al.  A Secret Key Extraction Technique Applied in Vehicular Networks , 2014, 2014 IEEE 17th International Conference on Computational Science and Engineering.

[27]  Wade Trappe,et al.  Radio-telepathy: extracting a secret key from an unauthenticated wireless channel , 2008, MobiCom '08.

[28]  Sneha Kumar Kasera,et al.  Secret Key Extraction from Wireless Signal Strength in Real Environments , 2013, IEEE Trans. Mob. Comput..

[29]  Akbar M. Sayeed,et al.  Secure wireless communications: Secret keys through multipath , 2008, 2008 IEEE International Conference on Acoustics, Speech and Signal Processing.

[30]  Kai Zeng,et al.  Physical layer key generation in wireless networks: challenges and opportunities , 2015, IEEE Communications Magazine.