[#RSA_X931_generate_key_ex]
= RSA_X931_generate_key_ex
:mrdocs:

Generate an RSA key pair using the X9.31 prime‐generation method (deprecated).

== Synopsis

Declared in `<openssl/rsa.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
int
RSA_X931_generate_key_ex(
    xref:RSA.adoc[RSA]* rsa,
    int bits,
    xref:BIGNUM.adoc[BIGNUM] const* e,
    xref:BN_GENCB.adoc[BN_GENCB]* cb);
----

[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 error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *rsa*
| Destination RSA object to populate.
| *bits*
| Desired modulus size in bits.
| *e*
| Public exponent.
| *cb*
| Optional BN_GENCB progress callback, or NULL.
|===


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