[#CMS_SignerInfo_verify]
= CMS&lowbar;SignerInfo&lowbar;verify
:mrdocs:

Verify the signature on a CMS SignerInfo&apos;s signed attributes&period;

== Synopsis

Declared in `&lt;openssl&sol;cms&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
CMS&lowbar;SignerInfo&lowbar;verify(xref:CMS_SignerInfo.adoc[CMS&lowbar;SignerInfo]* si);
----

== Return Value

1 on success, 0 on failure, or a negative value on a more serious error&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *si*
| SignerInfo with an associated public key (for example after CMS&lowbar;SignerInfo&lowbar;set1&lowbar;signer&lowbar;cert)&period;
|===


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