ChaCha20, Poly1305, and Their Use in the Internet Key Exchange Protocol (IKE) and IPsec, August 2015
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This document describes the use of the ChaCha20 stream cipher along with the Poly1305 authenticator, combined into an AEAD algorithm for the Internet Key Exchange Protocol version 2 (IKEv2) and for IPsec.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 8729.