wantErr: `Each form field that you specify in a form must appear in the list of policy conditions. "X-Amz-Checksum-Crc32" not specified in the policy.`,
		},
		{
			name:    "unknown key XAmzChecksumCRC32C is error as it does not appear in policy",
			fv:      defaultFormVals.Clone().Set(http.CanonicalHeaderKey(xhttp.AmzChecksumCRC32C), "crc32c-val"),

      }
      while (bb.remaining() >= 16) {
        crc0 = computeForWord(crc0);
        crc1 = computeForWord(crc1);
        crc2 = computeForWord(crc2);
        crc3 = computeForWord(crc3);
        crc0 ^= bb.getInt();
        crc1 ^= bb.getInt();
        crc2 ^= bb.getInt();
        crc3 ^= bb.getInt();
      }
    }

    @Override
    protected void processRemaining(ByteBuffer bb) {
      if (finished) {

// Returns nil if no checksum.
func (c ChecksumType) Hasher() hash.Hash {
	switch {
	case c.Is(ChecksumCRC32):
		return crc32.NewIEEE()
	case c.Is(ChecksumCRC32C):
		return crc32.New(crc32.MakeTable(crc32.Castagnoli))
	case c.Is(ChecksumSHA1):
		return sha1.New()
	case c.Is(ChecksumSHA256):
		return sha256.New()
	case c.Is(ChecksumCRC64NVME):
		return crc64.New(crc64Table)

    return ChecksumType.ADLER_32.hashFunction;
  }

  @Immutable
  enum ChecksumType implements ImmutableSupplier<Checksum> {
    CRC_32("Hashing.crc32()") {
      @Override
      public Checksum get() {
        return new CRC32();
      }
    },
    ADLER_32("Hashing.adler32()") {
      @Override
      public Checksum get() {
        return new Adler32();
      }
    };

	// Server-Status
	MinIOServerStatus = "x-minio-server-status"

	// Content Checksums
	AmzChecksumAlgo           = "x-amz-checksum-algorithm"
	AmzChecksumCRC32          = "x-amz-checksum-crc32"
	AmzChecksumCRC32C         = "x-amz-checksum-crc32c"
	AmzChecksumSHA1           = "x-amz-checksum-sha1"
	AmzChecksumSHA256         = "x-amz-checksum-sha256"
	AmzChecksumCRC64NVME      = "x-amz-checksum-crc64nvme"

	CNEG  LO, R7, R15                          // ef2487da
	CRC32B R17, R8, R16                        // 1041d11a
	CRC32H R3, R21, R27                        // bb46c31a
	CRC32W R22, R30, R9                        // c94bd61a
	CRC32X R20, R4, R15                        // 8f4cd49a
	CRC32CB R19, R27, R22                      // 7653d31a
	CRC32CH R21, R0, R20                       // 1454d51a
	CRC32CW R9, R3, R21                        // 7558c91a

		}
		if got.Flags != want.flags {
			t.Errorf("%s: got Flags %#x; want %#x", want.name, got.Flags, want.flags)
		}
		if got.CRC32 != want.crc32 {
			t.Errorf("%s: got CRC32 %#x; want %#x", want.name, got.CRC32, want.crc32)
		}
		if got.CompressedSize64 != want.compressedSize {
			t.Errorf("%s: got CompressedSize64 %d; want %d", want.name, got.CompressedSize64, want.compressedSize)
		}

		fh.UncompressedSize64 = 0

		ow = dirWriter{}
	} else {
		fh.Flags |= 0x8 // we will write a data descriptor

		fw = &fileWriter{
			zipw:      w.cw,
			compCount: &countWriter{w: w.cw},
			crc32:     crc32.NewIEEE(),
		}
		comp := w.compressor(fh.Method)
		if comp == nil {
			return nil, ErrAlgorithm
		}
		var err error
		fw.comp, err = comp(fw.compCount)
		if err != nil {
			return nil, err

	binary.Write(buf, binary.BigEndian, uint32(headerLength))
	prelude := buf.Bytes()
	binary.Write(buf, binary.BigEndian, crc32.ChecksumIEEE(prelude))
	buf.Write(header)
	if payload != nil {
		buf.Write(payload)
	}
	message := buf.Bytes()
	binary.Write(buf, binary.BigEndian, crc32.ChecksumIEEE(message))

	return buf.Bytes()
}

// Refer genRecordsHeader().
var recordsHeader = []byte{

				}
			}
			f, err := w.CreateHeader(&FileHeader{
				Name:   filename,
				Method: Store,
			})
			if err != nil {
				t.Fatal(err)
			}
			f.(*fileWriter).crc32 = fakeHash32{}
			size := wantOff - fileHeaderLen - uint64(len(filename)) - dataDescriptorLen
			if _, err := io.CopyN(f, zeros{}, int64(size)); err != nil {
				t.Fatal(err)
			}
			if err := w.Close(); err != nil {