Projects per year
Privacy-aware Blockchain Public Key Infrastructure (PB-PKI) is a recent proposal by Louise Axon (2017) to create a privacy-preserving Public Key Infrastructure on the Blockchain. However, PB-PKI suffers from operational problems. We found that the most important change, i.e., the key update process proposed in PB-PKI for privacy is broken. Other issues include authenticating a user during key update and ensuring proper key revocation. In this paper, we provide solutions to the problems of PB-PKI. We suggest generating fresh keys during key update. Furthermore, we use ring signatures for authenticating the user requesting key updates and use Asynchronous accumulators to handle the deletion of revoked keys. We show that the approach is feasible and implement a proof of concept.
|Title of host publication||ICISSP 2020 - Proceedings of the 6th International Conference on Information Systems Security and Privacy|
|Editors||Steven Furnell, Paolo Mori, Edgar Weippl, Olivier Camp|
|Publisher||SciTePress - Science and Technology Publications|
|Number of pages||9|
|Publication status||Published - 1 Jan 2020|
|Event||6th International Conference on Information Systems Security and Privacy: ICISSP 2020 - Valletta, Malta|
Duration: 25 Feb 2020 → 27 Feb 2020
|Name||ICISSP 2020 - Proceedings of the 6th International Conference on Information Systems Security and Privacy|
|Conference||6th International Conference on Information Systems Security and Privacy|
|Abbreviated title||ICISSP 2020|
|Period||25/02/20 → 27/02/20|
- Public key infrastructure
ASJC Scopus subject areas
- Information Systems
- Safety, Risk, Reliability and Quality
- Computer Networks and Communications
- Computer Science Applications
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- 1 Finished
EU - LIGHTest - Lightweight Infrastructure for Global Heterogeneous Trust management in support of an open Ecosystem of Stakeholders and Trust schemes.
1/09/16 → 30/08/19
Project: Research project