// Supported storage class scheme is EC
	schemePrefix = "EC"

	// Min parity drives
	minParityDrives = 0

	// Default RRS parity is always minimum parity.
	defaultRRSParity = 1
)

// DefaultKVS - default storage class config
var (
	DefaultKVS = config.KVS{
		config.KV{
			Key:   ClassStandard,
			Value: "",
		},
		config.KV{
			Key:   ClassRRS,
			Value: "EC:1",
		},
		config.KV{

	N   string `json:"n,omitempty"`
	E   string `json:"e,omitempty"`
	K   string `json:"k,omitempty"`
}

var (
	errMalformedJWKRSAKey = errors.New("malformed JWK RSA key")
	errMalformedJWKECKey  = errors.New("malformed JWK EC key")
)

// DecodePublicKey - decodes JSON Web Key (JWK) as public key
func (key *JWKS) DecodePublicKey() (crypto.PublicKey, error) {
	switch key.Kty {
	case "RSA":
		if key.N == "" || key.E == "" {

	for i, eVer := range eVers.versions {
		oVer := oVers.versions[i]
		if eVer.header != oVer.header {
			if eVer.header.hasEC() != oVer.header.hasEC() {
				// One version has EC and the other doesn't - may have been written later.
				// Compare without considering EC.
				a, b := eVer.header, oVer.header
				a.EcN, a.EcM = 0, 0
				b.EcN, b.EcM = 0, 0
				if a == b {
					continue
				}
			}

	formatErasureVersionV2DistributionAlgoV1 = "CRCMOD"

	// Distributed algorithm used, with N/2 default parity
	formatErasureVersionV3DistributionAlgoV2 = "SIPMOD"

	// Distributed algorithm used, with EC:4 default parity
	formatErasureVersionV3DistributionAlgoV3 = "SIPMOD+PARITY"
)

// Offline disk UUID represents an offline disk.
const offlineDiskUUID = "ffffffff-ffff-ffff-ffff-ffffffffffff"

		case *ecdsa.PrivateKey:
			b, err := x509.MarshalECPrivateKey(k)
			if err != nil {
				fmt.Fprintf(os.Stderr, "Unable to marshal ECDSA private key: %v", err)
				os.Exit(2)
			}
			return &pem.Block{Type: "EC PRIVATE KEY", Bytes: b}
		default:
			return nil
		}
	}

	var priv interface{}
	var err error
	priv, err = rsa.GenerateKey(crand.Reader, rsaBits)
	if err != nil {

		"Please check the value",
		`MINIO_STORAGE_CLASS_STANDARD: Format "EC:<Default_Parity_Standard_Class>" (e.g. "EC:3"). This sets the number of parity drives for MinIO server in Standard mode. Objects are stored in Standard mode, if storage class is not defined in Put request

		return nil, setupType, err
	}

	_, serverAddrPort := mustSplitHostPort(serverAddr)

	poolEndpoints := make(PoolEndpointList, len(poolsLayout))

	// For single arg, return single drive EC setup.
	if isSingleDriveLayout(poolsLayout...) {
		endpoint, err := NewEndpoint(poolsLayout[0].layout[0][0])
		if err != nil {
			return nil, setupType, err
		}
		if err := endpoint.UpdateIsLocal(); err != nil {

func TestHealingDanglingObject(t *testing.T) {
	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()

	resetGlobalHealState()
	defer resetGlobalHealState()

	// Set globalStorageClass.STANDARD to EC:4 for this test
	saveSC := globalStorageClass
	defer func() {
		globalStorageClass.Update(saveSC)
	}()
	globalStorageClass.Update(storageclass.Config{
		Standard: storageclass.StorageClass{
			Parity: 4,