[#BN_priv_rand_range]
= BN_priv_rand_range
:mrdocs:

Generate a cryptographically strong uniform private random BIGNUM in [0, ]`range).`

== Synopsis

Declared in `<openssl/bn.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
BN_priv_rand_range(
    xref:BIGNUM.adoc[BIGNUM]* rnd,
    xref:BIGNUM.adoc[BIGNUM] const* range);
----

== Return Value

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *rnd*
| Destination for the random value.
| *range*
| Exclusive upper bound; must be positive.
|===


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