[#RSA_blinding_on]
= RSA_blinding_on
:mrdocs:

Enable RSA blinding on `rsa` to mitigate timing attacks (deprecated).

== Synopsis

Declared in `<openssl/rsa.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
int
RSA_blinding_on(
    xref:RSA.adoc[RSA]* rsa,
    xref:BN_CTX.adoc[BN_CTX]* ctx);
----

[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*
| RSA key that will use blinding for private operations.
| *ctx*
| Optional BN_CTX for blinding setup, or NULL to allocate internally.
|===


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