[#FSChaCha20Poly1305-2constructor-0f]
= xref:FSChaCha20Poly1305.adoc[FSChaCha20Poly1305]::FSChaCha20Poly1305
:relfileprefix: ../
:mrdocs:

Construct an FSChaCha20Poly1305 cipher that rekeys every rekey_interval operations.

== Synopsis

Declared in `<crypto/chacha20poly1305.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
FSChaCha20Poly1305(
    std::span<std::byte const> key,
    uint32_t rekey_interval) noexcept;
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *key*
| The 32‐byte key.
| *rekey_interval*
| The number of encrypt/decrypt operations between automatic rekeys.
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#