PKCS7_SIGNED_new
LCRYPTO_USED(PKCS7_SIGNED_new);
LCRYPTO_ALIAS(PKCS7_SIGNED_new);
if ((p7->d.sign = PKCS7_SIGNED_new()) == NULL)
PKCS7_SIGNED *PKCS7_SIGNED_new(void);
if ((p7s = PKCS7_SIGNED_new()) == NULL)