Paper 2016/915 Original: eprint.iacr.org/2016/915 ↗
Transparency Overlays and Applications
Abstract
In this paper, we initiate a formal study of transparency, which in recent years has become an increasingly critical requirement for the systems in which people place trust. We present the abstract concept of a transparency overlay, which can be used in conjunction with any system to give it provable transparency guarantees, and then apply the overlay to two settings: Certificate Transparency and Bitcoin. In the latter setting, we show that the usage of our transparency overlay eliminates the need to engage in mining and allows users to store a single small value rather than the entire blockchain. Our transparency overlay is generically constructed from a signature scheme and a new primitive we call a dynamic list commitment, which in practice can be instantiated using a collision-resistant hash function.
Metadata
- Available format(s)
PDF- Category
- Cryptographic protocols
- Publication info
- Preprint.
- History
- 2016-09-22: last updated
- 2016-09-22: published
- Short URL
- https://ia.cr/2016/915
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2016/915,
author = {Melissa Chase and Sarah Meiklejohn},
title = {Transparency Overlays and Applications},
howpublished = {Cryptology {ePrint} Archive, Paper 2016/915},
year = {2016},
url = {https://eprint.iacr.org/2016/915}
}