[#ENGINE_set_default_DH]
= ENGINE_set_default_DH
:mrdocs:

Register `e` as the default ENGINE for Diffie‐Hellman operations.

== Synopsis

Declared in `<openssl/engine.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
int
ENGINE_set_default_DH(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 error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *e*
| ENGINE to install as the DH default.
|===


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