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Personal PKI for the smart device era.


John Lyle

Andrew Paverd

Justin King-Lacroix

Andrea Atzeni

Habib Virji


Shamal Faily


Sabrina De Capitani di Vimercati

Chris Mitchell


As people use an increasing number of smart devices for their everyday computing, it is surprising that these powerful, internet-enabled devices are rarely connected together to create personal networks. The webinos project is an attempt to make this possible so that resources can easily be shared between devices, regardless of the operating system or network they are using. However, increased connectivity raises a number of security and privacy issues, and in this paper we introduce a public key infrastructure designed to be suitable for personal computing across multiple devices. We recognize the need for our PKI to work on both mobile and home networks, use existing online user identities and take into consideration the different interaction styles found on smart devices in different form factors. We propose a set of principles for personal key infrastructures, describe our implementation and outline how it mitigates common threats and issues.


LYLE, J., PAVERD, A., KING-LACROIX, J., ATZENI, A., VIRJI, H., FLÉCHAIS, I. and FAILY, S. 2013. Personal PKI for the smart device era. In De Capitani di Vimercati, S. and Mitchell, C. (eds.) Public key infrastructures, services and applications: revised selected papers from the 9th European workshop on public key infrastructures, services and applications (EuroPKI 2012), 13-14 September 2012, Pisa, Italy. Lecture notes in computer science, 7868. Heidelberg: Springer [online], pages 69-84. Available from:

Conference Name 9th European workshop on public key infrastructures, services and applications (EuroPKI 2012)
Conference Location Pisa, Italy
Start Date Sep 13, 2012
End Date Sep 14, 2012
Acceptance Date Sep 13, 2012
Online Publication Date Dec 31, 2013
Publication Date Dec 31, 2013
Deposit Date Dec 9, 2021
Publicly Available Date Dec 9, 2021
Publisher Springer
Pages 69-84
Series Title Lecture notes in computer science (LNCS)
Series Number 7868
Series ISSN 0302-9743 ; 1611-3349
ISBN 9783642400117 ; 9783642400124
Keywords Computer networks; Networked devices; Smart devices; Mobile devices; Personal computers; Personal devices; Access and authorisation; Systems security
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