1CMS_add1_recipient_cert(3)          OpenSSL         CMS_add1_recipient_cert(3)
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NAME

6        CMS_add1_recipient_cert, CMS_add0_recipient_key - add recipients to a CMS enveloped data structure
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SYNOPSIS

9        #include <openssl/cms.h>
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11        CMS_RecipientInfo *CMS_add1_recipient_cert(CMS_ContentInfo *cms, X509 *recip, unsigned int flags);
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13        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);
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DESCRIPTION

16       CMS_add1_recipient_cert() adds recipient recip to CMS_ContentInfo
17       enveloped data structure cms as a KeyTransRecipientInfo structure.
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19       CMS_add0_recipient_key() adds symmetric key key of length keylen using
20       wrapping algorithm nid, identifier id of length idlen and optional
21       values date, otherTypeId and otherType to CMS_ContentInfo enveloped
22       data structure cms as a KEKRecipientInfo structure.
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24       The CMS_ContentInfo structure should be obtained from an initial call
25       to CMS_encrypt() with the flag CMS_PARTIAL set.
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NOTES

28       The main purpose of this function is to provide finer control over a
29       CMS enveloped data structure where the simpler CMS_encrypt() function
30       defaults are not appropriate. For example if one or more
31       KEKRecipientInfo structures need to be added. New attributes can also
32       be added using the returned CMS_RecipientInfo structure and the CMS
33       attribute utility functions.
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35       OpenSSL will by default identify recipient certificates using issuer
36       name and serial number. If CMS_USE_KEYID is set it will use the subject
37       key identifier value instead. An error occurs if all recipient
38       certificates do not have a subject key identifier extension.
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40       Currently only AES based key wrapping algorithms are supported for nid,
41       specifically: NID_id_aes128_wrap, NID_id_aes192_wrap and
42       NID_id_aes256_wrap.  If nid is set to NID_undef then an AES wrap
43       algorithm will be used consistent with keylen.
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RETURN VALUES

46       CMS_add1_recipient_cert() and CMS_add0_recipient_key() return an
47       internal pointer to the CMS_RecipientInfo structure just added or NULL
48       if an error occurs.
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SEE ALSO

51       ERR_get_error(3), CMS_decrypt(3), CMS_final(3),
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HISTORY

54       CMS_add1_recipient_cert() and CMS_add0_recipient_key() were added to
55       OpenSSL 0.9.8
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591.0.2o                            2020-01-28        CMS_add1_recipient_cert(3)
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