[#CMS_RecipientInfo_kekri_id_cmp]
= CMS_RecipientInfo_kekri_id_cmp
:mrdocs:

Compare a key identifier against the keyIdentifier of a KEK RecipientInfo.

== Synopsis

Declared in `<openssl/cms.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
CMS_RecipientInfo_kekri_id_cmp(
    xref:CMS_RecipientInfo.adoc[CMS_RecipientInfo]* ri,
    unsigned char const* id,
    size_t idlen);
----

== Return Value

0 if the identifiers match, or non‐zero otherwise.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ri*
| Recipient info of type CMS_RECIPINFO_KEK.
| *id*
| Key identifier bytes to compare.
| *idlen*
| Length of `id` in octets.
|===


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