Package adler32 implements the Adler-32 checksum.
It is defined in RFC 1950:
Adler-32 is composed of two sums accumulated per byte: s1 is the sum of all bytes, s2 is the sum of all s1 values. Both sums are done modulo 65521. s1 is initialized to 1, s2 to zero. The Adler-32 checksum is stored as s2*65536 + s1 in most- significant-byte first (network) order.
The size of an Adler-32 checksum in bytes.
const Size = 4
func Checksum ¶
func Checksum(data byte) uint32
Checksum returns the Adler-32 checksum of data.
func New ¶
func New() hash.Hash32
New returns a new hash.Hash32 computing the Adler-32 checksum. 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.