[#NETSCAPE_SPKI_verify]
= NETSCAPE_SPKI_verify
:mrdocs:

Verify the signature on a Netscape Signed Public Key and Challenge (SPKI) structure.

== Synopsis

Declared in `<openssl/x509.h>`

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

== Return Value

1 if the signature is valid, 0 if invalid, or a negative value on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| SPKI structure whose signature is checked.
| *r*
| Public key expected to have signed `a.`
|===


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