[#EVP_PKEY_is_a]
= EVP_PKEY_is_a
:mrdocs:

Test whether a public‐key object is known under the given algorithm name.

== Synopsis

Declared in `<openssl/evp.h>`

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

== Return Value

1 if `pkey` matches `name,` or 0 otherwise (including when `pkey` is NULL).

== Parameters

[cols="1,4"]
|===
| Name| Description
| *pkey*
| Key to query.
| *name*
| Algorithm name or synonym (for example "RSA" or "EC").
|===


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