[#EVP_PKEY_dup]
= EVP_PKEY_dup
:mrdocs:

Duplicate an EVP_PKEY (not supported for ENGINE‐based or raw keys).

== Synopsis

Declared in `<openssl/evp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:EVP_PKEY.adoc[EVP_PKEY]*
EVP_PKEY_dup(xref:EVP_PKEY.adoc[EVP_PKEY]* pkey);
----

== Return Value

Newly allocated copy, or NULL on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *pkey*
| Key to copy.
|===


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