Towards a Smart Contract-Based, Decentralized, Public-Key Infrastructure

Christos Patsonakis, Katerina Samari, Mema Roussopoulos, Aggelos Kiayias

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Public-key infrastructures (PKIs) are an integral part of the security foundations of digital communications. Their widespread deployment has allowed the growth of important applications, such as, internet banking and e-commerce. Centralized PKIs (CPKIs) rely on a hierarchy of trusted Certification Authorities (CAs) for issuing, distributing and managing the status of digital certificates, i.e., unforgeable data structures that attest to the authenticity of an entity's public key. Unfortunately, CPKI's have many downsides in terms of security and fault tolerance and there have been numerous security incidents throughout the years. Decentralized PKIs (DPKIs) were proposed to deal with these issues as they rely on multiple, independent nodes. Nevertheless, decentralization raises other concerns such as what are the incentives for the participating nodes to ensure the service's availability.
Original languageEnglish
Title of host publicationCANS 2017: Cryptology and Network Security
EditorsSrdjan Capkun, Sherman S. M. Chow
Place of PublicationCham
PublisherSpringer
Pages299-321
Number of pages23
ISBN (Print)978-3-030-02641-7
DOIs
Publication statusPublished - 10 Nov 2018
Event16th International Conference on Cryptology And Network Security - Hong Kong, Hong Kong
Duration: 29 Nov 20172 Dec 2017
http://crypto.ie.cuhk.edu.hk/cans17/

Publication series

NameLecture Notes in Computer Science
Volume11261
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference16th International Conference on Cryptology And Network Security
Abbreviated titleCANS 2017
Country/TerritoryHong Kong
CityHong Kong
Period29/11/172/12/17
Internet address

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