PKCS7_add_recipient
LCRYPTO_USED(PKCS7_add_recipient);
LCRYPTO_ALIAS(PKCS7_add_recipient);
if (!PKCS7_add_recipient(p7, x509)) {
PKCS7_RECIP_INFO *PKCS7_add_recipient(PKCS7 *p7, X509 *x509);