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ObsoletedINFORMATIONALIRTF stream

RFC 7539: ChaCha20 and Poly1305 for IETF Protocols

This RFC has been replaced. Do not implement against it for new work — it was formally obsoleted by RFC 8439.

Current version: 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. This document does not introduce any new crypto, but is meant to serve as a stable reference and an implementation guide. It is a product of the Crypto Forum Research Group (CFRG).

Document record

Document ID
RFC7539
Published
May 2015
Authors
Y. Nir; A. Langley
Status
INFORMATIONAL
Stream
IRTF
Area
—
Pages
45
Also known as
—
Obsoleted by:
RFC 8439

Topics

Referenced by

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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/7539-chacha20-and-poly1305-for-ietf-protocols