CMS_KeyAgreeRecipientIdentifier
.offset = offsetof(CMS_KeyAgreeRecipientIdentifier, d.issuerAndSerialNumber),
.offset = offsetof(CMS_KeyAgreeRecipientIdentifier, d.rKeyId),
.utype = offsetof(CMS_KeyAgreeRecipientIdentifier, type),
.size = sizeof(CMS_KeyAgreeRecipientIdentifier),
CMS_KeyAgreeRecipientIdentifier *rid = rek->rid;
CMS_KeyAgreeRecipientIdentifier *rid = rek->rid;
CMS_KeyAgreeRecipientIdentifier *rid;