[#RSAPrivateKey_dup]
= RSAPrivateKey_dup
:mrdocs:

Deep‐copy an RSA private key (RSAPrivateKey_dup) (deprecated).

== Synopsis

Declared in `<openssl/rsa.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
xref:RSA.adoc[RSA]*
RSAPrivateKey_dup(xref:RSA.adoc[RSA] const* a);
----

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

Newly allocated RSA copy, or NULL on failure; free with RSA_free().

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| Source RSA key to duplicate.
|===


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