[#EVP_PKEY_parameters_eq]
= EVP_PKEY_parameters_eq
:mrdocs:

Compare the domain parameters of two keys for equality.

== Synopsis

Declared in `<openssl/evp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
EVP_PKEY_parameters_eq(
    xref:EVP_PKEY.adoc[EVP_PKEY] const* a,
    xref:EVP_PKEY.adoc[EVP_PKEY] const* b);
----

== Return Value

1 if parameters match, 0 if they differ, or a negative value on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| First key.
| *b*
| Second key.
|===


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