OCSP_SIGNATURE_new
LCRYPTO_USED(OCSP_SIGNATURE_new);
OCSP_SIGNATURE *OCSP_SIGNATURE_new(void);
LCRYPTO_ALIAS(OCSP_SIGNATURE_new);
req->optionalSignature = OCSP_SIGNATURE_new();
if (!(req->optionalSignature = sig = OCSP_SIGNATURE_new()))