if spaces {
		return "", nil, ErrInvalidEncryptionKeyID
	}
	return strings.TrimPrefix(keyID, ARNPrefix), ctx, nil
}

// IsEncrypted returns true if the object metadata indicates
// that the object was uploaded using SSE-KMS.
func (ssekms) IsEncrypted(metadata map[string]string) bool {
	if _, ok := metadata[MetaSealedKeyKMS]; ok {
		return true
	}
	return false
}

	InsecureSealAlgorithm = "DARE-SHA256"
)

// Type represents an AWS SSE type:
//   - SSE-C
//   - SSE-S3
//   - SSE-KMS
type Type interface {
	fmt.Stringer

	IsRequested(http.Header) bool
	IsEncrypted(map[string]string) bool
}

// IsRequested returns true and the SSE Type if the HTTP headers
// indicate that some form server-side encryption is requested.
//

	data.Owner = owner
	data.Buckets.Buckets = listbuckets

	return data
}

func cleanReservedKeys(metadata map[string]string) map[string]string {
	m := cloneMSS(metadata)

	switch kind, _ := crypto.IsEncrypted(metadata); kind {
	case crypto.S3:
		m[xhttp.AmzServerSideEncryption] = xhttp.AmzEncryptionAES
	case crypto.S3KMS:
		m[xhttp.AmzServerSideEncryption] = xhttp.AmzEncryptionKMS

	objInfo.UserDefined = objectlock.FilterObjectLockMetadata(objInfo.UserDefined, getRetPerms != ErrNone, legalHoldPerms != ErrNone)

	// Set encryption response headers
	if kind, isEncrypted := crypto.IsEncrypted(objInfo.UserDefined); isEncrypted {
		switch kind {
		case crypto.S3:
			w.Header().Set(xhttp.AmzServerSideEncryption, xhttp.AmzEncryptionAES)
		case crypto.S3KMS:

		return dquorum
	}
	return fi.Erasure.DataBlocks
}

// Equals checks if fi(FileInfo) matches ofi(FileInfo)
func (fi FileInfo) Equals(ofi FileInfo) (ok bool) {
	typ1, ok1 := crypto.IsEncrypted(fi.Metadata)
	typ2, ok2 := crypto.IsEncrypted(ofi.Metadata)
	if ok1 != ok2 {
		return false
	}
	if typ1 != typ2 {
		return false
	}
	if fi.IsCompressed() != ofi.IsCompressed() {
		return false
	}

			if err != nil {
				return putOpts, err
			}
		}
		putOpts.Internal.LegalholdTimestamp = lholdTimestamp
	}
	if crypto.S3.IsEncrypted(objInfo.UserDefined) {
		putOpts.ServerSideEncryption = encrypt.NewSSE()
	}

	if crypto.S3KMS.IsEncrypted(objInfo.UserDefined) {
		sseEnc, err := encrypt.NewSSEKMS(objInfo.KMSKeyID(), nil)
		if err != nil {
			return putOpts, err
		}

		if encrypted, err := DecryptObjectInfo(&test.info, test.request); err != test.expErr {
			t.Errorf("Test %d: Decryption returned wrong error code: got %d , want %d", i, err, test.expErr)
		} else if _, enc := crypto.IsEncrypted(test.info.UserDefined); encrypted && enc != encrypted {
			t.Errorf("Test %d: Decryption thinks object is encrypted but it is not", i)
		} else if !encrypted && enc != encrypted {

		gr.Close()
		if err != nil {
			return nil, ObjectInfo{}, err
		}
		if size > len(b) {
			size = len(b)
		}

		// Calculate the object real size if encrypted
		if _, ok := crypto.IsEncrypted(gr.ObjInfo.UserDefined); ok {
			objSize, err = gr.ObjInfo.DecryptedSize()
			if err != nil {
				return nil, ObjectInfo{}, err
			}
		} else {
			objSize = gr.ObjInfo.Size
		}

	}
	data = cdata
	json := jsoniter.ConfigCompatibleWithStandardLibrary
	if len(cmetadata) != 0 {
		if err := json.Unmarshal(cmetadata, &meta); err != nil {
			return nil, err
		}
		if crypto.S3.IsEncrypted(meta) {
			if data, err = decryptBucketMetadata(cdata, bucket, meta, kms.Context{
				bucket:            bucket,
				bucketTargetsFile: bucketTargetsFile,
			}); err != nil {
				return nil, err
			}
		}

			return
		}
		if sse, err = encrypt.NewSSEC(clientKey[:]); err != nil {
			return
		}
		opts.ServerSideEncryption = sse
		return
	}
	if crypto.S3.IsRequested(header) || (metadata != nil && crypto.S3.IsEncrypted(metadata)) {
		opts.ServerSideEncryption = encrypt.NewSSE()
	}

	return
}

// get ObjectOptions for GET calls from encryption headers