[#EVP_default_properties_enable_fips]
= EVP_default_properties_enable_fips
:mrdocs:

Enable or disable the FIPS constraint in a library context's default properties.

== Synopsis

Declared in `<openssl/evp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
EVP_default_properties_enable_fips(
    xref:OSSL_LIB_CTX.adoc[OSSL_LIB_CTX]* libctx,
    int enable);
----

== Return Value

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *libctx*
| Library context to update, or NULL for the default context.
| *enable*
| Non‐zero to require FIPS algorithms in default fetches, or 0 to clear that constraint.
|===


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