// Seed (random)
	crc := uint64(0xc2b40bbac11a7295)
	// Xor each value to make order independent
	for k, v := range m {
		// Separate key and value with an individual xor with a random number.
		// Add values of each, so they cannot be trivially collided.
		crc ^= (xxh3.HashString(k) ^ 0x4ee3bbaf7ab2506b) + (xxh3.HashString(v) ^ 0x8da4c8da66194257)
	}
	return crc
}

	// Zero unimportant fields
	c.Erasure.Index = 0
	c.Minio.Release = ""
	crc := hashDeterministicString(c.Meta)
	c.Meta = nil

	if bts, err := c.MarshalMsg(metaDataPoolGet()); err == nil {
		crc ^= xxhash.Sum64(bts)
		metaDataPoolPut(bts)
	}

	// Combine upper and lower part
	var tmp [4]byte
	binary.LittleEndian.PutUint32(tmp[:], uint32(crc^(crc>>32)))
	return tmp
}

// XL metadata constants.
const (

			}
			if minor >= 2 {
				if crc, nbuf, err := msgp.ReadUint32Bytes(buf); err == nil {
					// Read metadata CRC (added in v2)
					buf = nbuf
					if got := uint32(xxhash.Sum64(v)); got != crc {
						return fmt.Errorf("xlMetaV2.Load version(%d), CRC mismatch, want 0x%x, got 0x%x", minor, crc, got)
					}
				} else {
					return fmt.Errorf("xlMetaV2.Load version(%d), loading CRC: %w", minor, err)
				}
			}

				hash.ChecksumSHA256.String(): part.ChecksumSHA256,
			}
			if wantCS[checksumType.String()] != crc {
				return oi, InvalidPart{
					PartNumber: part.PartNumber,
					ExpETag:    wantCS[checksumType.String()],
					GotETag:    crc,
				}
			}
			cs := hash.NewChecksumString(checksumType.String(), crc)
			if !cs.Valid() {
				return oi, InvalidPart{
					PartNumber: part.PartNumber,
				}
			}

	}
	if m.Flags&FlagCRCxxh3 != 0 {
		const hashLen = 4
		if len(h) < hashLen {
			return nil, nil, fmt.Errorf("want crc len 4, got %v", len(h))
		}
		got := uint32(xxh3.Hash(b[:len(b)-hashLen]))
		want := binary.LittleEndian.Uint32(h[len(h)-hashLen:])
		if got != want {
			return nil, nil, fmt.Errorf("crc mismatch: 0x%08x (given) != 0x%08x (bytes)", want, got)
		}
		h = h[:len(h)-hashLen]
	}
	// Extract subroute if any.

	id, err := hex.DecodeString(keyHex[:8])
	if err != nil {
		return err
	}
	key, err := hex.DecodeString(keyHex[8:])
	if err != nil {
		return err
	}
	// Verify that CRC is ok.
	want := binary.LittleEndian.Uint32(id)
	got := crc32.ChecksumIEEE(key)
	if want != got {
		return fmt.Errorf("Invalid key checksum, want %x, got %x", want, got)
	}

	stream, err := sio.AES_256_GCM.Stream(key)

				// Read metadata CRC (added in v2, ignore if not found)
				b = nbuf
			}

			_, e = msgp.CopyToJSON(buf, bytes.NewReader(v))
			if e != nil {
				return nil, e
			}
			data = b
		case 3:
			v, b, e := msgp.ReadBytesZC(b)
			if e != nil {
				return nil, e
			}
			if _, nbuf, e := msgp.ReadUint32Bytes(b); e == nil {
				// Read metadata CRC (added in v2, ignore if not found)
				b = nbuf

				err = msgp.WrapError(err, "ModTime")
				return
			}
		case "index":
			z.Index, err = dc.ReadBytes(z.Index)
			if err != nil {
				err = msgp.WrapError(err, "Index")
				return
			}
		case "crc":
			var zb0002 uint32
			zb0002, err = dc.ReadMapHeader()
			if err != nil {
				err = msgp.WrapError(err, "Checksums")
				return
			}
			if z.Checksums == nil {

		t.Errorf("unexpected method and flags: %v", b[6:10])
	}

	if !bytes.Equal(b[14:26], make([]byte, 12)) { // FileHeader.{CRC32,CompressSize,UncompressedSize} all zero.
		t.Errorf("unexpected crc, compress and uncompressed size to be 0 was: %v", b[14:26])
	}

	binary.LittleEndian.PutUint32(sig[:], uint32(dataDescriptorSignature))
	if bytes.Contains(b, sig[:]) {
		t.Error("there should be no data descriptor")

	if c == nil {
		return nil
	}
	var tmp [binary.MaxVarintLen32]byte
	n := binary.PutUvarint(tmp[:], uint64(c.Type))
	crc := c.Raw
	if len(crc) != c.Type.RawByteLen() {
		return b
	}
	b = append(b, tmp[:n]...)
	b = append(b, crc...)
	if c.Type.Is(ChecksumMultipart) {
		var checksums int
		// Ensure we don't divide by 0: