BlockPGP: A new blockchain-based PGP management framework

guest · Feb 5, 2020

BlockPGP: A new blockchain-based PGP management framework
February 5, 2020
https://techxplore.com/news/2020-02-blockpgp-blockchain-based-pgp-framework.html

Pretty Good Privacy (PGP), one of the most widely used cryptographic standards, enables safe end-to-end encryption for emails, messages and other data sharing between users. Essentially, PGP works by implementing asymmetric encryption, in which certificates are shared through a network of PGP key servers.

Researchers at the University of Luxembourg have recently developed a new PGP management framework in which the key server infrastructure is implemented using blockchain technology. This new framework, dubbed BlockPGP, was presented in a paper published in the International Journal of Networking and Computing.

"If something is wrong with the PGP key or PGP certificate (which ensures the security of file exchange with PGP protocol), our system quickly and efficiently revokes the old PGP key, and more importantly, disseminates information about this key revocation to the majority of PGP users in several minutes."
Should the researchers succeed in persuading PGP users to shift from traditional key servers to their system, their framework could ultimately speed up and simplify the management of PGP certificates considerably.
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BlockPGP: A Blockchain-based Framework for PGP Key Servers
(PDF - 435 KB): http://www.ijnc.org/index.php/ijnc/article/viewFile/217/218

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.

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.
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