The generation of shared cryptographic keys through channel impulse response estimation at 60 GHz.

Young, Derek P. ; Forman, Michael A. ; Dowdle, Donald Ryan

关键词: COMMUNICATIONS;    IMPLEMENTATION;    LABORATORY EQUIPMENT;    RANDOMNESS;    CRYPTOGRAPHY;    DATA TRANSMISSION;    SECURITY;   

DOI  :  10.2172/1008128
RP-ID  :  SAND2010-6662
PID  :  OSTI ID: 1008128
Others  :  TRN: US201108%%18

学科分类：社会科学、人文和艺术（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

Methods to generate private keys based on wireless channel characteristics have been proposed as an alternative to standard key-management schemes. In this work, we discuss past work in the field and offer a generalized scheme for the generation of private keys using uncorrelated channels in multiple domains. Proposed cognitive enhancements measure channel characteristics, to dynamically change transmission and reception parameters as well as estimate private key randomness and expiration times. Finally, results are presented on the implementation of a system for the generation of private keys for cryptographic communications using channel impulse-response estimation at 60 GHz. The testbed is composed of commercial millimeter-wave VubIQ transceivers, laboratory equipment, and software implemented in MATLAB. Novel cognitive enhancements are demonstrated, using channel estimation to dynamically change system parameters and estimate cryptographic key strength. We show for a complex channel that secret key generation can be accomplished on the order of 100 kb/s.