[#DH_get0_priv_key]
= DH_get0_priv_key
:mrdocs:

Return the private key BIGNUM stored in a DH object, if any.

== Synopsis

Declared in `<openssl/dh.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
xref:BIGNUM.adoc[BIGNUM] const*
DH_get0_priv_key(xref:DH.adoc[DH] const* dh);
----

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

Deprecated; prefer EVP_PKEY_get_bn_param() / provider‐based key APIs.

== Return Value

Internal pointer to the private key (do not free), or NULL if unset.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *dh*
| DH object to query.
|===


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