[#wallet-CCrypter-SetKey]
= xref:wallet.adoc[wallet]::xref:wallet/CCrypter.adoc[CCrypter]::SetKey
:relfileprefix: ../../
:mrdocs:

Sets the encryption key and IV directly.

== Synopsis

Declared in `<wallet/crypter.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[nodiscard]]
bool
SetKey(
    xref:wallet/CKeyingMaterial.adoc[CKeyingMaterial] const& new_key,
    std::span<unsigned char const> new_iv);
----

== Return Value

true if the key and IV were the expected sizes and were set.

[NOTE]
====
The return value https://en.cppreference.com/cpp/language/attributes/nodiscard[should not be discarded^].
====
== Parameters

[cols="1,4"]
|===
| Name| Description
| *new_key*
| The key material to use.
| *new_iv*
| The initialization vector to use.
|===


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