Chase, M;
Meiklejohn, S;
(2016)
Transparency Overlays and Applications.
Cryptology ePrint Archive
Preview |
Text
transparency.pdf - Accepted Version Download (609kB) | Preview |
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.
Type: | Working / discussion paper |
---|---|
Title: | Transparency Overlays and Applications |
Open access status: | An open access version is available from UCL Discovery |
Publisher version: | https://eprint.iacr.org/2016/915.pdf |
Language: | English |
Additional information: | This version is the author manuscript. |
UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science |
URI: | https://discovery.ucl.ac.uk/id/eprint/10055892 |
Archive Staff Only
View Item |