[#EC_KEY_METHOD_set_compute_key]
= EC_KEY_METHOD_set_compute_key
:mrdocs:

Set the ECDH shared‐secret callback on an EC_KEY_METHOD (deprecated).

== Synopsis

Declared in `<openssl/ec.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
void
EC_KEY_METHOD_set_compute_key(
    xref:EC_KEY_METHOD.adoc[EC_KEY_METHOD]* meth,
    int(* ckey)(unsigned char**, size_t*, xref:EC_POINT.adoc[EC_POINT] const*, xref:EC_KEY.adoc[EC_KEY] const*));
----

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

[cols="1,4"]
|===
| Name| Description
| *meth*
| Method table to update.
| *ckey*
| Callback that computes the shared secret into *`psec` / *`pseclen,` or NULL to clear.
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#