[#FSChaCha20Poly1305-2constructor-011]
= xref:FSChaCha20Poly1305.adoc[FSChaCha20Poly1305]::FSChaCha20Poly1305
:relfileprefix: ../
:mrdocs:

Constructors

== Synopses

Declared in `<crypto/chacha20poly1305.h>`

Deleted copy constructor (the secret key must not be duplicated).


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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xref:FSChaCha20Poly1305/2constructor-0e.adoc[FSChaCha20Poly1305](xref:FSChaCha20Poly1305.adoc[FSChaCha20Poly1305] const& other) = delete;
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[.small]#xref:FSChaCha20Poly1305/2constructor-0e.adoc[_» more..._]#

Deleted move constructor (the secret key must not be duplicated).


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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xref:FSChaCha20Poly1305/2constructor-01a.adoc[FSChaCha20Poly1305](xref:FSChaCha20Poly1305.adoc[FSChaCha20Poly1305]&& other) = delete;
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[.small]#xref:FSChaCha20Poly1305/2constructor-01a.adoc[_» more..._]#

Construct an FSChaCha20Poly1305 cipher that rekeys every rekey_interval operations.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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xref:FSChaCha20Poly1305/2constructor-0f.adoc[FSChaCha20Poly1305](
    std::span<std::byte const> key,
    uint32_t rekey_interval) noexcept;
----

[.small]#xref:FSChaCha20Poly1305/2constructor-0f.adoc[_» more..._]#

== Parameters

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


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