Paper 2024/796 Original: eprint.iacr.org/2024/796 ↗
Weak Consistency mode in Key Transparency: OPTIKS
Abstract
The need for third-party auditors in privacy-preserving Key Transparency (KT) systems presents a deployment challenge. In this short note, we take a simple privacy-preserving KT system that provides strong security guarantees in the presence of an honest auditor (OPTIKS) and show how to add a auditor-free mode to it. The auditor-free mode offers slightly weaker security. We formalize this security property and prove that our proposed protocol satisfies our security definition.
Metadata
- Available format(s)
PDF- Category
- Cryptographic protocols
- Publication info
- Preprint.
- History
- 2024-05-23: last updated
- 2024-05-23: published
- Short URL
- https://ia.cr/2024/796
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2024/796,
author = {Esha Ghosh and Melissa Chase},
title = {Weak Consistency mode in Key Transparency: OPTIKS},
howpublished = {Cryptology {ePrint} Archive, Paper 2024/796},
year = {2024},
url = {https://eprint.iacr.org/2024/796}
}