HasVX     bool // vector facility. Note: the runtime sets this when it processes auxv records.
	HasVXE    bool // vector-enhancements facility 1
	HasKDSA   bool // elliptic curve functions
	HasECDSA  bool // NIST curves
	HasEDDSA  bool // Edwards curves
	_         CacheLinePad
}

// CPU feature variables are accessed by assembly code in various packages.
//go:linkname X86

			return c.Name
		}
	}
	return fmt.Sprintf("0x%04X", id)
}

const (
	// suiteECDHE indicates that the cipher suite involves elliptic curve
	// Diffie-Hellman. This means that it should only be selected when the
	// client indicates that it supports ECC with a curve and point format
	// that we're happy with.
	suiteECDHE = 1 << iota
	// suiteECSign indicates that the cipher suite involves an ECDSA or

// SetBytesWithClamping returns nil and an error, and the receiver is unchanged.
//
// Note that since Scalar values are always reduced modulo the prime order of
// the curve, the resulting value will not preserve any of the cofactor-clearing
// properties that clamping is meant to provide. It will however work as
// expected as long as it is applied to points on the prime order subgroup, like

		if namedCurve == nil {
			return nil, errors.New("x509: unsupported elliptic curve")
		}
		x, y := elliptic.Unmarshal(namedCurve, der)
		if x == nil {
			return nil, errors.New("x509: failed to unmarshal elliptic curve point")
		}
		pub := &ecdsa.PublicKey{
			Curve: namedCurve,
			X:     x,
			Y:     y,
		}
		return pub, nil
	case oid.Equal(oidPublicKeyEd25519):

		// without sending key shares for them.
		if _, ok := curveForCurveID(curveID); !ok {
			c.sendAlert(alertInternalError)
			return errors.New("tls: CurvePreferences includes unsupported curve")
		}
		key, err := generateECDHEKey(c.config.rand(), curveID)
		if err != nil {
			c.sendAlert(alertInternalError)
			return err
		}
		hs.keyShareKeys = &keySharePrivateKeys{curveID: curveID, ecdhe: key}

				{group: X25519, data: keyShareKeys.ecdhe.PublicKey().Bytes()},
			}
		} else {
			if _, ok := curveForCurveID(curveID); !ok {
				return nil, nil, nil, errors.New("tls: CurvePreferences includes unsupported curve")
			}
			keyShareKeys.ecdhe, err = generateECDHEKey(config.rand(), curveID)
			if err != nil {
				return nil, nil, nil, err
			}

	ClusterID string

	// The type of Elliptical Signature algorithm to use
	// when generating private keys. Currently only ECDSA is supported.
	ECCSigAlg string

	// The type of curve to use when generating private keys with ECC. Currently only ECDSA is supported.
	ECCCurve string

	// FileMountedCerts indicates whether the proxy is using file

}

// EncryptionAlgorithmType can define an asymmetric encryption algorithm type.
type EncryptionAlgorithmType string

const (
	// EncryptionAlgorithmECDSAP256 defines the ECDSA encryption algorithm type with curve P256.
	EncryptionAlgorithmECDSAP256 EncryptionAlgorithmType = "ECDSA-P256"
	// EncryptionAlgorithmRSA2048 defines the RSA encryption algorithm type with key size 2048 bits.

}

// EncryptionAlgorithmType can define an asymmetric encryption algorithm type.
type EncryptionAlgorithmType string

const (
	// EncryptionAlgorithmECDSAP256 defines the ECDSA encryption algorithm type with curve P256.
	EncryptionAlgorithmECDSAP256 EncryptionAlgorithmType = "ECDSA-P256"
	// EncryptionAlgorithmRSA2048 defines the RSA encryption algorithm type with key size 2048 bits.

	_, err := MarshalPKIXPublicKey(&ecdsa.PublicKey{})
	if err == nil {
		t.Errorf("expected error, got MarshalPKIXPublicKey success")
	}
	_, err = MarshalPKIXPublicKey(&ecdsa.PublicKey{
		Curve: elliptic.P256(),
		X:     big.NewInt(1), Y: big.NewInt(2),
	})
	if err == nil {
		t.Errorf("expected error, got MarshalPKIXPublicKey success")
	}
}