Article (Scientific journals)
BlockPGP: A Blockchain-based Framework for PGP Key Servers
Yakubov, Alexander; Shbair, Wazen; Khan, Nida et al.
2020In International Journal of Networking and Computing, 10 (1), p. 1-24
Peer reviewed
 

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Keywords :
PGP; Blockchain; Key server
Abstract :
[en] Pretty Good Privacy (PGP) is one of the most prominent cryptographic standards offering end-to-end encryption for email messages and other sensitive information exchange. PGP allows to verify the identity of the correspondent in information exchange as well as the information integrity. PGP implements asymmetric encryption with certificates shared through a network of PGP key servers. In this paper, we propose a new PGP management framework with the key servers infrastructure implemented using blockchain technology. Our approach offers fast propagation of certificate revocation among PGP key servers and elimination of man-in-the-middle risks. It also grants users the required access control to update their own PGP certificates, which is not the case with the current PGP key servers. A prototype has been implemented using Ethereum blockchain and an open source key server, named Hockeypuck. Finally, we evaluated the prototype with extensive experiments. Our results show that our solution is practical and it could be integrated with the existing public PGP key servers infrastructure.
Research center :
Interdisciplinary Centre for Security, Reliability and Trust (SnT) > Services and Data management research group (SEDAN)
Disciplines :
Computer science
Author, co-author :
Yakubov, Alexander ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Shbair, Wazen ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Khan, Nida ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
State, Radu  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Medinger, Christophe;  BCEE
Hilger, Jean;  BCEE
External co-authors :
no
Language :
English
Title :
BlockPGP: A Blockchain-based Framework for PGP Key Servers
Publication date :
05 January 2020
Journal title :
International Journal of Networking and Computing
ISSN :
2185-2847
Publisher :
Hiroshima University. Department of Electrical and Computer Engineering, Higashihiroshima, Japan
Volume :
10
Issue :
1
Pages :
1-24
Peer reviewed :
Peer reviewed
Focus Area :
Security, Reliability and Trust
Available on ORBilu :
since 23 January 2020

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