Abstract
One of the biggest challenges for the Internet of Things (IoT) is to bridge the currently fragmented trust domains. The traditional PKI model relies on a common root of trust and does not fit well with the heterogeneous IoT ecosystem where constrained devices belong to independent administrative domains. In this work we describe a distributed trust model for the IoT that leverages the existing trust domains and bridges them to create endto- end trust between IoT devices without relying on any common root of trust. Furthermore we define a new cryptographic primitive, denoted as obligation chain designed as a credit-based Blockchain with a built-in reputation mechanism. Its innovative design enables a wide range of use cases and business models that are simply not possible with current Blockchain-based solutions while not experiencing traditional blockchain delays. We provide a security analysis for both the obligation chain and the overall architecture and provide experimental tests that show its viability and quality.
Original language | English |
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Title of host publication | SACMAT 2018 - Proceedings of the 23rd ACM Symposium on Access Control Models and Technologies |
Publisher | Association for Computing Machinery |
Pages | 77-83 |
Number of pages | 7 |
ISBN (Electronic) | 9781450356664 |
DOIs | |
State | Published - 7 Jun 2018 |
Externally published | Yes |
Event | 23rd ACM Symposium on Access Control Models and Technologies, SACMAT 2018 - Indianapolis, United States Duration: 13 Jun 2018 → 15 Jun 2018 |
Publication series
Name | Proceedings of ACM Symposium on Access Control Models and Technologies, SACMAT |
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Conference
Conference | 23rd ACM Symposium on Access Control Models and Technologies, SACMAT 2018 |
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Country/Territory | United States |
City | Indianapolis |
Period | 13/06/18 → 15/06/18 |
Bibliographical note
Publisher Copyright:© 2018 Association for Computing Machinery.
Keywords
- Access control
- Blockchain
- Distributed ledger
- IoT
- Security