---
title: HPKE.AEAD.chaChaPoly
framework: cryptokit
role: symbol
role_heading: Case
path: cryptokit/hpke/aead/chachapoly
---

# HPKE.AEAD.chaChaPoly

A ChaCha20 stream cipher with the Poly1305 message authentication code.

## Declaration

```swift
case chaChaPoly
```