OPTBOOL( "-ssl2", ssl2);
	OPTBOOL( "-ssl3", ssl3);
	OPTBOOL( "-tls1", tls1);
	OPTBOOL( "-tls1.1", tls1_1);
	OPTBOOL( "-tls1.2", tls1_2);
	OPTBOOL( "-tls1.3", tls1_3);

  OPTBYTE("-certasn1", cert_asn1, cert_asn1_len);
  OPTBYTE("-keyasn1", key_asn1, key_asn1_len);
  OPTBYTE("-cert", cert_asn1, cert_asn1_len);
  OPTBYTE("-key", key_asn1, key_asn1_len);

	OPTBAD( "option", "-cadir, -cafile, -certasn1, -certfile, -cipher, -command, -dhparams, -keyasn1, -keyfile, -model, -password, -require, -request, -server, -servername, -ssl2, -ssl3, -tls1, -tls1.1, -tls1.2, or tls1.3");
	OPTBAD( "option", "-cadir, -cafile, -cert, -certfile, -cipher, -command, -dhparams, -key, -keyfile, -model, -password, -require, -request, -server, -servername, -ssl2, -ssl3, -tls1, -tls1.1, -tls1.2, or tls1.3");

	return TCL_ERROR;
    }
    if (request)	    verify |= SSL_VERIFY_CLIENT_ONCE | SSL_VERIFY_PEER;
    if (request && require) verify |= SSL_VERIFY_FAIL_IF_NO_PEER_CERT;
    if (verify == 0)	verify = SSL_VERIFY_NONE;

	    SSL_CTX_free(ctx);
	    return (SSL_CTX *)0;
	}
    } else if (cert_asn1 != NULL) {
	if (SSL_CTX_use_certificate_ASN1(ctx, cert_asn1_len, cert_asn1) <= 0) {
	    Tcl_DStringFree(&ds);
	    Tcl_AppendResult(interp,
			     "unable to set certificate from ASN1: ",
			     "unable to set certificate: ",
			     REASON(), (char *) NULL);
	    SSL_CTX_free(ctx);
	    return (SSL_CTX *)0;
	}
	if (key_asn1 == NULL) {
    key_asn1=cert_asn1;
    key_asn1_len = cert_asn1_len;
  }
	if (SSL_CTX_use_PrivateKey_ASN1(EVP_PKEY_RSA, ctx, key_asn1,key_asn1_len) <= 0) {
	    Tcl_DStringFree(&ds);
	    /* flush the passphrase which might be left in the result */
	    Tcl_SetResult(interp, NULL, TCL_STATIC);
	    Tcl_AppendResult(interp,
			     "unable to set public key from ASN1: ",
			     "unable to set public key: ",
			     REASON(), (char *) NULL);
	    SSL_CTX_free(ctx);
	    return (SSL_CTX *)0;
	}
    } else {
	cert = (char*)X509_get_default_cert_file();