[#EVP_PKEY_set1_engine]
= EVP_PKEY_set1_engine
:mrdocs:

Associate an ENGINE with an EVP_PKEY for subsequent low‐level operations (deprecated).

== Synopsis

Declared in `<openssl/evp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
int
EVP_PKEY_set1_engine(
    xref:EVP_PKEY.adoc[EVP_PKEY]* pkey,
    xref:ENGINE.adoc[ENGINE]* e);
----

[WARNING]
====
https://en.cppreference.com/cpp/language/attributes/deprecated[Deprecated^]. Use of this entity is allowed but discouraged.
====
== Return Value

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *pkey*
| Key whose ENGINE reference is set.
| *e*
| ENGINE to attach, or NULL to clear.
|===


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