RFC 8439

ChaCha20 and Poly1305 for IETF Protocols, June 2018

Canonical URL:
https://www.rfc-editor.org/rfc/rfc8439.txt
File formats:
Plain TextPDF
Status:
INFORMATIONAL
Obsoletes:
RFC 7539
Authors:
Y. Nir
A. Langley
Stream:
IRTF

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC8439

Discuss this RFC: Send questions or comments to cfrg@irtf.org

Other actions: Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

This document defines the ChaCha20 stream cipher as well as the use of the Poly1305 authenticator, both as stand-alone algorithms and as a "combined mode", or Authenticated Encryption with Associated Data (AEAD) algorithm.

RFC 7539, the predecessor of this document, was meant to serve as a stable reference and an implementation guide. It was a product of the Crypto Forum Research Group (CFRG). This document merges the errata filed against RFC 7539 and adds a little text to the Security Considerations section.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


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