"github.com/minio/minio/internal/logger"
)

type ssec struct{}

var (
	// SSEC represents AWS SSE-C. It provides functionality to handle
	// SSE-C requests.
	SSEC = ssec{}

	_ Type = SSEC
)

// String returns the SSE domain as string. For SSE-C the
// domain is "SSE-C".
func (ssec) String() string { return "SSE-C" }

// IsRequested returns true if the HTTP headers contains

		crypto.S3KMS.CreateMetadata(metadata, newKey.KeyID, newKey.Ciphertext, sealedKey, cryptoCtx)
		return nil
	case crypto.SSEC:
		sealedKey, err := crypto.SSEC.ParseMetadata(metadata)
		if err != nil {
			return err
		}

		var objectKey crypto.ObjectKey
		if err = objectKey.Unseal(oldKey, sealedKey, crypto.SSEC.String(), bucket, object); err != nil {
			if subtle.ConstantTimeCompare(oldKey, newKey) == 1 {

		return S3, true
	case S3KMS.IsRequested(h):
		return S3KMS, true
	case SSEC.IsRequested(h):
		return SSEC, true
	default:
		return nil, false
	}
}

// Requested returns whether any type of encryption is requested.
func Requested(h http.Header) bool {
	return S3.IsRequested(h) || S3KMS.IsRequested(h) || SSEC.IsRequested(h)
}

// UnsealObjectKey extracts and decrypts the sealed object key

	if err != nil {
		return opts, err
	}
	opts.MTime = mtime
	opts.UserDefined = make(map[string]string)
	// Transfer SSEC key in opts.EncryptFn
	if crypto.SSEC.IsRequested(r.Header) {
		key, err := ParseSSECustomerRequest(r)
		if err == nil {
			// Set EncryptFn to return SSEC key
			opts.EncryptFn = func(baseKey string, data []byte) []byte {
				return key
			}
		}
	}

			writeErrorResponse(ctx, w, toAPIError(ctx, errInvalidEncryptionParameters), r.URL)
			return
		}

		if crypto.SSEC.IsRequested(r.Header) && crypto.S3.IsRequested(r.Header) {
			writeErrorResponse(ctx, w, toAPIError(ctx, crypto.ErrIncompatibleEncryptionMethod), r.URL)
			return
		}

		if crypto.SSEC.IsRequested(r.Header) && crypto.S3KMS.IsRequested(r.Header) {

		{ObjectOpts{Name: "c1test", VersionID: "vid", DeleteMarker: true, SSEC: true, OpType: DeleteReplicationType}, cfgs[0], true}, // 7. permanent delete of version
		{ObjectOpts{Name: "c1test", DeleteMarker: true, SSEC: true, OpType: DeleteReplicationType}, cfgs[0], true},                   // 8. setting DeleteMarker on SSE-C encrypted object

		ExistingObjResync:    existingObjResync,
		TargetStatuses:       tgtStatuses,
		TargetPurgeStatuses:  purgeStatuses,
		ReplicationTimestamp: tm,
		SSEC:                 crypto.SSEC.IsEncrypted(oi.UserDefined),
		UserTags:             oi.UserTags,
	}
	if r.SSEC {
		r.Checksum = oi.Checksum
	}
	return r
}

// ReplicationState - returns replication state using other internal replication metadata in ObjectInfo

			xhttp.AmzServerSideEncryptionCustomerKeyMD5:    []string{"7PpPLAK26ONlVUGOWlusfg=="},
		},
		copySource:     false,
		metadata:       nil,
		encryptionType: encrypt.SSEC,
		err:            nil,
	}, // 0
	{
		headers: http.Header{
			xhttp.AmzServerSideEncryptionCustomerAlgorithm: []string{"AES256"},

		m[xhttp.AmzServerSideEncryptionKmsID] = kmsKeyIDFromMetadata(metadata)
		if kmsCtx, ok := metadata[crypto.MetaContext]; ok {
			m[xhttp.AmzServerSideEncryptionKmsContext] = kmsCtx
		}
	case crypto.SSEC:
		m[xhttp.AmzServerSideEncryptionCustomerAlgorithm] = xhttp.AmzEncryptionAES
	}

	var toRemove []string
	for k := range cleanMinioInternalMetadataKeys(m) {
		if stringsHasPrefixFold(k, ReservedMetadataPrefixLower) {

			z.UserTags, bts, err = msgp.ReadStringBytes(bts)
			if err != nil {
				err = msgp.WrapError(err, "UserTags")
				return
			}
		case "SSEC":
			z.SSEC, bts, err = msgp.ReadBoolBytes(bts)
			if err != nil {
				err = msgp.WrapError(err, "SSEC")
				return
			}
		case "ReplicationStatus":
			bts, err = z.ReplicationStatus.UnmarshalMsg(bts)
			if err != nil {