package crc32

Import Path
	hash/crc32 (on golang.org and go.dev)

Dependency Relation
	imports 5 packages, and imported by 3 packages

Involved Source Files
	d-> crc32.go
	    crc32_amd64.go
	    crc32_generic.go
	    crc32_amd64.s

Exported Type Names

type Table ([...]) Table is a 256-word table representing the polynomial for efficient processing. func MakeTable(poly uint32) *Table func Checksum(data []byte, tab *Table) uint32 func New(tab *Table) hash.Hash32 func Update(crc uint32, tab *Table, p []byte) uint32 var IEEETable *Table
Exported Values
const Castagnoli = 2197175160 Castagnoli's polynomial, used in iSCSI. Has better error detection characteristics than IEEE. https://dx.doi.org/10.1109/26.231911
func Checksum(data []byte, tab *Table) uint32 Checksum returns the CRC-32 checksum of data using the polynomial represented by the Table.
func ChecksumIEEE(data []byte) uint32 ChecksumIEEE returns the CRC-32 checksum of data using the IEEE polynomial.
const IEEE = 3988292384 IEEE is by far and away the most common CRC-32 polynomial. Used by ethernet (IEEE 802.3), v.42, fddi, gzip, zip, png, ...
var IEEETable *Table IEEETable is the table for the IEEE polynomial.
const Koopman = 3945912366 Koopman's polynomial. Also has better error detection characteristics than IEEE. https://dx.doi.org/10.1109/DSN.2002.1028931
func MakeTable(poly uint32) *Table MakeTable returns a Table constructed from the specified polynomial. The contents of this Table must not be modified.
func New(tab *Table) hash.Hash32 New creates a new hash.Hash32 computing the CRC-32 checksum using the polynomial represented by the Table. Its Sum method will lay the value out in big-endian byte order. The returned Hash32 also implements encoding.BinaryMarshaler and encoding.BinaryUnmarshaler to marshal and unmarshal the internal state of the hash.
func NewIEEE() hash.Hash32 NewIEEE creates a new hash.Hash32 computing the CRC-32 checksum using the IEEE polynomial. Its Sum method will lay the value out in big-endian byte order. The returned Hash32 also implements encoding.BinaryMarshaler and encoding.BinaryUnmarshaler to marshal and unmarshal the internal state of the hash.
const Size = 4 The size of a CRC-32 checksum in bytes.
func Update(crc uint32, tab *Table, p []byte) uint32 Update returns the result of adding the bytes in p to the crc.