[#AEADChaCha20Poly1305-2constructor]
= xref:AEADChaCha20Poly1305.adoc[AEADChaCha20Poly1305]::AEADChaCha20Poly1305
:relfileprefix: ../
:mrdocs:

Initialize an AEAD instance with a specified 32‐byte key.

== Synopsis

Declared in `<crypto/chacha20poly1305.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
AEADChaCha20Poly1305(std::span<std::byte const> key) noexcept;
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *key*
| The 32‐byte key.
|===


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