[#EVP_PKEY_meth_set_sign]
= EVP_PKEY_meth_set_sign
:mrdocs:

Set the signing callbacks on a custom EVP_PKEY_METHOD (deprecated).

== Synopsis

Declared in `<openssl/evp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
void
EVP_PKEY_meth_set_sign(
    xref:EVP_PKEY_METHOD.adoc[EVP_PKEY_METHOD]* pmeth,
    int(* sign_init)(xref:EVP_PKEY_CTX.adoc[EVP_PKEY_CTX]*),
    int(* sign)(xref:EVP_PKEY_CTX.adoc[EVP_PKEY_CTX]*, unsigned char*, size_t*, unsigned char const*, size_t));
----

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

[cols="1,4"]
|===
| Name| Description
| *pmeth*
| Method table to update.
| *sign_init*
| Optional initialization callback before signing, or NULL.
| *sign*
| Callback that produces a signature over `tbs` into `sig.`
|===


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