Paper 2023/1063
DiStefano: Decentralized Infrastructure for Sharing Trusted Encrypted Facts and Nothing More
, Brave Software, NOVA LINCS & DI, FCT, Universidade NOVA de Lisboa,Abstract
We design DiStefano: an efficient, maliciously-secure framework for generating private commitments over TLS-encrypted web traffic, for a designated third-party. DiStefano provides many improvements over previous TLS commitment systems, including: a modular protocol specific to TLS 1.3, support for arbitrary verifiable claims over encrypted data, inherent ring privacy for client browsing history, and various optimisations to ensure fast online performance of the TLS 1.3 session. We build a permissive open-source implementation of DiStefano integrated into the BoringSSL cryptographic library (used by Chromium-based Internet browsers). We show that DiStefano is practical for committing to facts in arbitrary TLS traffic, requiring \(< 1s\) and \(\leq 5KB\) to execute the online phase in a LAN setting.
Metadata
- Available format(s)
-
PDF
- Category
- Applications
- Publication info
- Preprint.
- Keywords
- TLSMPSprivacy
- Contact author(s)
-
cherenkov @ riseup net
a davidson @ fct unl pt
hamed @ brave com
gpestana @ hashmatter com
joe rowell @ rhul ac uk - History
- 2024-03-21: last of 3 revisions
- 2023-07-07: received
- See all versions
- Short URL
- https://ia.cr/2023/1063
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2023/1063,
author = {Sofía Celi and Alex Davidson and Hamed Haddadi and Gonçalo Pestana and Joe Rowell},
title = {{DiStefano}: Decentralized Infrastructure for Sharing Trusted Encrypted Facts and Nothing More},
howpublished = {Cryptology {ePrint} Archive, Paper 2023/1063},
year = {2023},
url = {https://eprint.iacr.org/2023/1063}
}
