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Mathematical Analysis of Secrecy Amplification in Key Infection: The Whispering Mode

Dae HYUN YUM

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Summary :

A wireless sensor network consists of spatially distributed devices using sensors to monitor physical and environmental conditions. Key infection is a key distribution protocol for wireless sensor networks with a partially present adversary; a sensor node wishing to communicate secretly with other nodes simply sends a symmetric encryption key in the clear. The partially present adversary can eavesdrop on only a small fraction of the keys. Secrecy amplification is a post-deployment strategy to improve the security of key infection by combining multiple keys propagated along different paths. The previous mathematical analysis of secrecy amplification assumes that sensor nodes always transmit packets at the maximum strength. We provide a mathematical analysis of secrecy amplification where nodes adjust their transmission power adaptively (a.k.a. whispering mode).

Publication
IEICE TRANSACTIONS on Information Vol.E102-D No.12 pp.2599-2602
Publication Date
2019/12/01
Publicized
2019/09/12
Online ISSN
1745-1361
DOI
10.1587/transinf.2019EDL8055
Type of Manuscript
LETTER
Category
Information Network

Authors

Dae HYUN YUM
  Myongji University

Keyword