[#BN_get0_nist_prime_521]
= BN_get0_nist_prime_521
:mrdocs:

Return the NIST P‐521 prime (2ˆ521 ‐ 1) as a shared BIGNUM.

== Synopsis

Declared in `<openssl/bn.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BIGNUM.adoc[BIGNUM] const*
BN_get0_nist_prime_521();
----

== Return Value

Pointer to the static prime; do not free.


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