[#RSA_get_version]
= RSA_get_version
:mrdocs:

Return whether an RSA key is multi‐prime or two‐prime (deprecated).

== Synopsis

Declared in `<openssl/rsa.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
int
RSA_get_version(xref:RSA.adoc[RSA]* r);
----

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

RSA_ASN1_VERSION_MULTI or RSA_ASN1_VERSION_DEFAULT (two‐prime).

== Parameters

[cols="1,4"]
|===
| Name| Description
| *r*
| RSA key to query.
|===


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