[#EVP_RAND_nonce]
= EVP_RAND_nonce
:mrdocs:

Generate a nonce of `outlen` bytes from RAND context `ctx.`

== Synopsis

Declared in `<openssl/evp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
EVP_RAND_nonce(
    xref:EVP_RAND_CTX.adoc[EVP_RAND_CTX]* ctx,
    unsigned char* out,
    size_t outlen);
----

== Return Value

1 on success, or 0 on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ctx*
| Instantiated RAND context.
| *out*
| Buffer receiving the nonce.
| *outlen*
| Number of nonce bytes to produce.
|===


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