[#ENGINE_PKEY_ASN1_METHS_PTR]
= ENGINE&lowbar;PKEY&lowbar;ASN1&lowbar;METHS&lowbar;PTR
:mrdocs:

ENGINE ASN&period;1 method handler&colon; list supported NIDs or return an EVP&lowbar;PKEY&lowbar;ASN1&lowbar;METHOD&period;

== Synopsis

Declared in `&lt;openssl&sol;engine&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
typedef int(* ENGINE&lowbar;PKEY&lowbar;ASN1&lowbar;METHS&lowbar;PTR)(xref:ENGINE.adoc[ENGINE]*, xref:EVP_PKEY_ASN1_METHOD.adoc[EVP&lowbar;PKEY&lowbar;ASN1&lowbar;METHOD]**, int const**, int);
----

== Description

Same calling convention as ENGINE&lowbar;DIGESTS&lowbar;PTR &sol; ENGINE&lowbar;CIPHERS&lowbar;PTR&colon; fetch by NID when the method out&hyphen;parameter is non&hyphen;NULL, otherwise enumerate NIDs&period;


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