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RFC 8439: ChaCha20 and Poly1305 for IETF Protocols

In plain English — editorial summary, not part of the RFC

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.

Document record

Document ID
RFC8439
Published
June 2018
Authors
Y. Nir; A. Langley
Status
INFORMATIONAL
Stream
IRTF
Area
—
Pages
46
Also known as
—
Obsoletes:
RFC 7539

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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

Last checked against the RFC Editor index on . RFCs are never revised after publication; changes are issued as new documents.

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canonical URL: /rfc/8439-chacha20-and-poly1305-for-ietf-protocols