CMS_add1_recipient_cert - add recipients to a CMS enveloped data structure
#include <openssl/cms.h> CMS_RecipientInfo *CMS_add1_recipient_cert(CMS_ContentInfo *cms, X509 *recip, unsigned int flags); CMS_RecipientInfo *CMS_add0_recipient_key(CMS_ContentInfo *cms, int nid, unsigned char *key, size_t keylen, unsigned char *id, size_t idlen, ASN1_GENERALIZEDTIME *date, ASN1_OBJECT *otherTypeId, ASN1_TYPE *otherType);
OpenSSL CMS_add1_recipient_cert(3openssl)
NAME
CMS_add1_recipient_cert, CMS_add0_recipient_key - add recipients to a CMS enveloped data structure
SYNOPSIS
#include <openssl/cms.h>
CMS_RecipientInfo *CMS_add1_recipient_cert(CMS_ContentInfo *cms, X509 *recip, unsigned int flags);
CMS_RecipientInfo *CMS_add0_recipient_key(CMS_ContentInfo *cms, int nid, unsigned char *key, size_t keylen, unsigned char *id, size_t idlen, ASN1_GENERALIZEDTIME *date, ASN1_OBJECT *otherTypeId, ASN1_TYPE *otherType);
DESCRIPTION
CMS_add1_recipient_cert() adds recipient recip to CMS_ContentInfo
enveloped data structure cms as a KeyTransRecipientInfo structure.
CMS_add0_recipient_key() adds symmetric key key of length keylen using
wrapping algorithm nid, identifier id of length idlen and optional
values date, otherTypeId and otherType to CMS_ContentInfo enveloped
data structure cms as a KEKRecipientInfo structure.
The CMS_ContentInfo structure should be obtained from an initial call
to CMS_encrypt() with the flag CMS_PARTIAL set.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+--------------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+--------------------------+
|Availability | library/security/openssl |
+---------------+--------------------------+
|Stability | Pass-through uncommitted |
+---------------+--------------------------+
NOTES
The main purpose of this function is to provide finer control over a
CMS enveloped data structure where the simpler CMS_encrypt() function
defaults are not appropriate. For example if one or more
KEKRecipientInfo structures need to be added. New attributes can also
be added using the returned CMS_RecipientInfo structure and the CMS
attribute utility functions.
OpenSSL will by default identify recipient certificates using issuer
name and serial number. If CMS_USE_KEYID is set it will use the subject
key identifier value instead. An error occurs if all recipient
certificates do not have a subject key identifier extension.
Currently only AES based key wrapping algorithms are supported for nid,
specifically: NID_id_aes128_wrap, NID_id_aes192_wrap and
NID_id_aes256_wrap. If nid is set to NID_undef then an AES wrap
algorithm will be used consistent with keylen.
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from
https://www.openssl.org/source/openssl-1.0.2ze.tar.gz.
Further information about this software can be found on the open source
community website at https://www.openssl.org/.
RETURN VALUES
CMS_add1_recipient_cert() and CMS_add0_recipient_key() return an
internal pointer to the CMS_RecipientInfo structure just added or NULL
if an error occurs.
SEE ALSO
ERR_get_error(3), CMS_decrypt(3), CMS_final(3),
HISTORY
CMS_add1_recipient_cert() and CMS_add0_recipient_key() were added to
OpenSSL 0.9.8
1.0.2ze 2022-05-03
CMS_add1_recipient_cert(3openssl)