[#EVP_PKEY_meth_add0]
= EVP_PKEY_meth_add0
:mrdocs:

Register an application‐defined EVP_PKEY_METHOD (deprecated).

== Synopsis

Declared in `<openssl/evp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
int
EVP_PKEY_meth_add0(xref:EVP_PKEY_METHOD.adoc[EVP_PKEY_METHOD] const* pmeth);
----

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

Prefer providers for new algorithms.

== Return Value

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *pmeth*
| Method table to add to the global list; must remain valid.
|===


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