RFC 8103 · PROPOSED STANDARD · 2017
SUN · 14 JUN 2026
Using ChaCha20-Poly1305 Authenticated Encryption in the Cryptographic Message Syntax
Overview
RFC 8103, “Using ChaCha20-Poly1305 Authenticated Encryption in the Cryptographic Message Syntax”, is a Proposed Standard document published in February 2017 by R. Housley. The canonical text is published by the RFC Editor.
Abstract
This document describes the conventions for using ChaCha20-Poly1305 Authenticated Encryption in the Cryptographic Message Syntax (CMS). ChaCha20-Poly1305 is an authenticated encryption algorithm constructed of the ChaCha stream cipher and Poly1305 authenticator.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
Read this RFC
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