seahash

README

seahash

A Go port of the SeaHash algorithm.

Benchmarks

Intel(R) Xeon(R) CPU E3-1505M v6 @ 3.00GHz

$ go test -bench .
BenchmarkSum-8     	30000000	        47.2 ns/op
BenchmarkSum64-8   	50000000	        33.0 ns/op

Documentation

Overview

Package seahash implements SeaHash, a non-cryptographic hash function created by http://ticki.github.io.

See https://ticki.github.io/blog/seahash-explained.

Index

• Constants
• func New() hash.Hash64
• func Sum(b []byte) []byte
• func Sum64(b []byte) uint64

Examples

• New
• Sum
• Sum64

Constants

const BlockSize = 8

BlockSize of SeaHash in bytes.

const Size = 8

Size of a SeaHash checksum in bytes.

Functions

func New

func New() hash.Hash64

New creates a new SeaHash hash.Hash64

Example

// hash some bytes
h := New()
h.Write([]byte("to be or not to be"))
hash := h.Sum64()
fmt.Printf("%x", hash)

Output:

1b993a826f4ae575

func Sum

func Sum(b []byte) []byte

Sum is a convenience method that returns the checksum of the byte slice

Example

// hash some bytes
hash := Sum([]byte("to be or not to be"))
fmt.Printf("%x", hash)

Output:

75e54a6f823a991b

func Sum64

func Sum64(b []byte) uint64

Sum64 is a convenience method that returns uint64 checksum of the byte slice

Example

// hash some bytes
fmt.Printf("%x", Sum64([]byte("to be or not to be")))

Output:

1b993a826f4ae575