[#RSA_meth_set_sign]
= RSA_meth_set_sign
:mrdocs:

Set the private‐key signing callback on an RSA_METHOD (deprecated).

== Synopsis

Declared in `<openssl/rsa.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
int
RSA_meth_set_sign(
    xref:RSA_METHOD.adoc[RSA_METHOD]* rsa,
    int(* sign)(int, unsigned char const*, unsigned int, unsigned char*, unsigned int*, xref:RSA.adoc[RSA] const*));
----

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

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *rsa*
| Method table to update.
| *sign*
| Callback implementing RSA_sign()‐style signing, or NULL to clear.
|===


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