[#EVP_PKEY_missing_parameters]
= EVP_PKEY_missing_parameters
:mrdocs:

Test whether an EVP_PKEY lacks required algorithm parameters.

== Synopsis

Declared in `<openssl/evp.h>`

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

== Return Value

Non‐zero if parameters are missing, or 0 if parameters are present (or not required).

== Parameters

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


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