[#CMS_SignedData_init]
= CMS_SignedData_init
:mrdocs:

Initialize `cms` as an empty CMS SignedData (for example for certificates‐only).

== Synopsis

Declared in `<openssl/cms.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
CMS_SignedData_init(xref:CMS_ContentInfo.adoc[CMS_ContentInfo]* cms);
----

== Return Value

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *cms*
| ContentInfo that receives a SignedData structure if not already present.
|===


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