[#BN_bntest_rand]
= BN_bntest_rand
:mrdocs:

Generate a non‐cryptographic test random BIGNUM for BN self‐tests.

== Synopsis

Declared in `<openssl/bn.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
BN_bntest_rand(
    xref:BIGNUM.adoc[BIGNUM]* rnd,
    int bits,
    int top,
    int bottom);
----

== Return Value

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *rnd*
| Destination BIGNUM.
| *bits*
| Desired bit length.
| *top*
| BN_RAND_TOP_* controlling the most‐significant bits.
| *bottom*
| BN_RAND_BOTTOM_* controlling the least‐significant bit.
|===


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