[#EVP_PKEY_asn1_set_free]
= EVP_PKEY_asn1_set_free
:mrdocs:

Set the private‐key free callback on a custom EVP_PKEY_ASN1_METHOD.

== Synopsis

Declared in `<openssl/evp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
EVP_PKEY_asn1_set_free(
    xref:EVP_PKEY_ASN1_METHOD.adoc[EVP_PKEY_ASN1_METHOD]* ameth,
    void(* pkey_free)(xref:EVP_PKEY.adoc[EVP_PKEY]*));
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ameth*
| ASN.1 method being constructed.
| *pkey_free*
| Callback that releases algorithm‐specific key material in `pkey.`
|===


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