Paper 2014/613 Original: eprint.iacr.org/2014/613 ↗
A Security Analysis of the Composition of ChaCha20 and Poly1305
Abstract
This note contains a security reduction to demonstrate that Langley's composition of Bernstein's ChaCha20 and Poly1305, as proposed for use in IETF protocols, is a secure authenticated encryption scheme. The reduction assumes that ChaCha20 is a PRF, that Poly1305 is epsilon-almost-Delta-universal, and that the adversary is nonce respecting.
Metadata
- Available format(s)
PDF- Category
- Secret-key cryptography
- Publication info
- Preprint.
- History
- 2014-08-13: last updated
- 2014-08-13: published
- Short URL
- https://ia.cr/2014/613
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2014/613,
author = {Gordon Procter},
title = {A Security Analysis of the Composition of ChaCha20 and Poly1305},
howpublished = {Cryptology {ePrint} Archive, Paper 2014/613},
year = {2014},
url = {https://eprint.iacr.org/2014/613}
}