[#BN_BLINDING_lock]
= BN&lowbar;BLINDING&lowbar;lock
:mrdocs:

Acquire the mutex associated with a BN&lowbar;BLINDING object&period;

== Synopsis

Declared in `&lt;openssl&sol;bn&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
BN&lowbar;BLINDING&lowbar;lock(xref:BN_BLINDING.adoc[BN&lowbar;BLINDING]* b);
----

== Return Value

1 on success, or 0 on failure&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *b*
| Blinding object whose lock is taken&period;
|===


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