[#BIO_f_asn1]
= BIO&lowbar;f&lowbar;asn1
:mrdocs:

Return the filter BIO&lowbar;METHOD that encodes ASN&period;1 values to a downstream BIO&period;

== Synopsis

Declared in `&lt;openssl&sol;asn1&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BIO_METHOD.adoc[BIO&lowbar;METHOD] const*
BIO&lowbar;f&lowbar;asn1();
----

== Return Value

Pointer to the ASN&period;1 filter method used with BIO&lowbar;new() &sol; BIO&lowbar;new&lowbar;NDEF()&period;


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