[#EVP_KDF_CTX_kdf]
= EVP&lowbar;KDF&lowbar;CTX&lowbar;kdf
:mrdocs:

Return the EVP&lowbar;KDF method associated with a derivation context&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:EVP_KDF.adoc[EVP&lowbar;KDF] const*
EVP&lowbar;KDF&lowbar;CTX&lowbar;kdf(xref:EVP_KDF_CTX.adoc[EVP&lowbar;KDF&lowbar;CTX]* ctx);
----

== Return Value

Borrowed EVP&lowbar;KDF pointer&semi; do not free&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ctx*
| KDF context from EVP&lowbar;KDF&lowbar;CTX&lowbar;new()&period;
|===


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