Previous Article in Journal
Hierarchical Gated Recurrent Unit with Semantic Attention for Event Prediction
Previous Article in Special Issue
Blockchain: Current Challenges and Future Prospects/Applications
Open AccessArticle

A Blockchain based PKI Validation System based on Rare Events Management

1
INUIT Foundation—University of Rome Tor Vergata, ‎00133 Rome, Italy
2
Fraunhofer Institute for Industrial Engineering IAO, Nobelstraße 12, 70569 Stuttgart, Germany
*
Author to whom correspondence should be addressed.
Future Internet 2020, 12(2), 40; https://doi.org/10.3390/fi12020040
Received: 19 December 2019 / Revised: 4 February 2020 / Accepted: 11 February 2020 / Published: 14 February 2020
(This article belongs to the Special Issue Blockchain: Current Challenges and Future Prospects/Applications)
Public key infrastructures (PKIs) are the cornerstone for the security of the communication layer of online services relying on certificate-based authentication, such as e-commerce, e-government, online banking, cloud services, and many others. A PKI is an infrastructure based on a hierarchical model, but the use of PKIs in non-hierarchical contexts has exposed them to many types of attacks. Here, we discuss weaknesses exploited in past attacks and we propose a solution based on an original consensus algorithm developed for use on blockchain technology. In this implementation we retain the full functionality around X.509 certificates, i.e., for the triad (server name, server address, X.509 server certificate), and demonstrate a mechanism for obtaining fast consensus. The main properties of the solution are that a consensus may be reached even when not all members of the involved PKI participate in a transaction, and that no advanced trust agreement among PKIs is needed. The proposed solution is able to detect PKI attacks and can distinguish errors from attacks, allowing precise management of anomalies.
Keywords: PKI; X.509 certificate; PKI attack; distributed ledger technology; blockchain; hyperledger; smart contract; rare event. PKI; X.509 certificate; PKI attack; distributed ledger technology; blockchain; hyperledger; smart contract; rare event.
MDPI and ACS Style

Talamo, M.; Arcieri, F.; Dimitri, A.; Schunck, C.H. A Blockchain based PKI Validation System based on Rare Events Management. Future Internet 2020, 12, 40.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop