The values returned by [New] and [NewIEEE] now also implement the [encoding.BinaryAppender] interface....

	defer timeout(60 * time.Second)()
	const debug = false

	var readBytes int
	var wroteBytes int
	var readBuf bytes.Buffer
	var wroteBuf bytes.Buffer
	readHash := crc32.NewIEEE()
	wroteHash := crc32.NewIEEE()
	read := io.Writer(readHash)
	wrote := io.Writer(wroteHash)
	if debug {
		read = io.MultiWriter(read, &readBuf)
		wrote = io.MultiWriter(wrote, &wroteBuf)
	}

}

// Hasher returns a hasher corresponding to the checksum type.
// 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()
	}
	return nil
}

		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
		}

	var desr io.Reader
	if f.hasDataDescriptor() {
		desr = io.NewSectionReader(f.zipr, f.headerOffset+bodyOffset+size, dataDescriptorLen)
	}
	rc = &checksumReader{
		rc:   rc,
		hash: crc32.NewIEEE(),
		f:    f,
		desr: desr,
	}
	return rc, nil
}

// OpenRaw returns a [Reader] that provides access to the [File]'s contents without
// decompression.
func (f *File) OpenRaw() (io.Reader, error) {

					if err == io.EOF {
						err = nil // Expected error
					}
					break
				}
				hdrs = append(hdrs, hdr)

				if v.chksums == nil {
					continue
				}
				h := crc32.NewIEEE()
				_, err = io.CopyBuffer(h, tr, rdbuf) // Effectively an incremental read
				if err != nil {
					break
				}
				chksums = append(chksums, fmt.Sprintf("%x", h.Sum(nil)))
			}

pkg hash/crc32, func Checksum([]uint8, *Table) uint32
pkg hash/crc32, func ChecksumIEEE([]uint8) uint32
pkg hash/crc32, func MakeTable(uint32) *Table
pkg hash/crc32, func New(*Table) hash.Hash32
pkg hash/crc32, func NewIEEE() hash.Hash32
pkg hash/crc32, func Update(uint32, *Table, []uint8) uint32
pkg hash/crc32, type Table [256]uint32
pkg hash/crc32, var IEEETable *Table
pkg hash/crc64, const ECMA ideal-int