[#CMS_digest_create]
= CMS_digest_create
:mrdocs:

Create a CMS DigestedData ContentInfo from content read from a BIO.

== Synopsis

Declared in `<openssl/cms.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:CMS_ContentInfo.adoc[CMS_ContentInfo]*
CMS_digest_create(
    xref:BIO.adoc[BIO]* in,
    xref:EVP_MD.adoc[EVP_MD] const* md,
    unsigned int flags);
----

== Return Value

New DigestedData ContentInfo, or NULL on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *in*
| BIO supplying the data to digest.
| *md*
| Message digest algorithm to apply.
| *flags*
| Optional CMS flags; CMS_DETACHED and CMS_STREAM are supported.
|===


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