[#EVP_set_default_properties]
= EVP_set_default_properties
:mrdocs:

Set the default property query string used for algorithm fetches in `libctx.`

== Synopsis

Declared in `<openssl/evp.h>`

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

== 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.
| *propq*
| Property query string (for example "fips=yes"), or NULL to clear.
|===


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