ChaCha20 and Poly1305 for IETF Protocols
RFC 8439

Received changes through RFC Editor sync (changed abstract to '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.')

Received changes through RFC Editor sync (created alias RFC 8439, changed abstract to '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.', changed pages to 46, changed standardization level to Informational, changed state to RFC, added RFC published event at 2018-06-19, changed IRTF state to Published RFC, created obsoletes relation between draft-nir-cfrg-rfc7539bis and RFC 7539)