Paper 2015/394 Original: eprint.iacr.org/2015/394 ↗
Augmented Secure Channels and the Goal of the TLS 1.3 Record Layer
Abstract
Motivated by the wide adoption of authenticated encryption and TLS, we suggest a basic channel abstraction, an augmented secure channel (ASC), that allows a sender to send a receiver messages consisting of two parts, where one is privacy-protected and both are authenticity-protected. Working in the tradition of constructive cryptography, we formalize this idea and provide a construction of this kind of channel using the lower-level tool authenticated-encryption. We look at recent proposals on TLS 1.3 and suggest that the criterion by which their security can be judged is quite simple: do they construct an ASC? Due to this precisely defined goal, we are able to give a natural construction that comes with a rigorous security proof and directly leads to a proposal on TLS 1.3 that is provably secure.
Metadata
- Available format(s)
PDF- Category
- Secret-key cryptography
- Publication info
- Preprint.
- History
- 2018-09-28: last updated
- 2015-05-01: published
- Short URL
- https://ia.cr/2015/394
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2015/394,
author = {Christian Badertscher and Christian Matt and Ueli Maurer and Phillip Rogaway and Björn Tackmann},
title = {Augmented Secure Channels and the Goal of the TLS 1.3 Record Layer},
howpublished = {Cryptology {ePrint} Archive, Paper 2015/394},
year = {2015},
url = {https://eprint.iacr.org/2015/394}
}