[#EVP_MD_is_a]
= EVP_MD_is_a
:mrdocs:

Test whether a digest implementation is known by `name` (including aliases).

== Synopsis

Declared in `<openssl/evp.h>`

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

== Return Value

1 if `md` matches `name,` or 0 otherwise.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *md*
| Digest method to query.
| *name*
| Algorithm name such as "SHA256".
|===


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