hasher

Documentation

Index

• Constants
• Variables
• func HashData(hasher Keccak, data []byte) (ha []byte, er error)
• func HashFile(hasher Keccak, fp string) (ha []byte, er error)
• func HashStream(hasher Keccak, reader io.Reader) (ha []byte, er error)
• func VerifyHash(hash []byte) error
• type Keccak
  • func NewKeccak() Keccak

Constants

const HashSize = 32

HashSize is the size of a hash

Variables

var EmptyHash [HashSize]byte

EmptyHash is the hash value for empty byte array

Functions

func HashData

func HashData(hasher Keccak, data []byte) (ha []byte, er error)

HashData hashes the given data and returns its sha3 hash value

func HashFile

func HashFile(hasher Keccak, fp string) (ha []byte, er error)

HashFile hashes the given file and returns its sha3 hash value

func HashStream

func HashStream(hasher Keccak, reader io.Reader) (ha []byte, er error)

HashStream hashes the given stream and returns its sha3 hash value

func VerifyHash

func VerifyHash(hash []byte) error

VerifyHash verifies the hash value. At the moment, it only verifies the hash size

Types

type Keccak

type Keccak interface {
	hash.Hash
	Read([]byte) (int, error)
}

Keccak wraps sha3.state. In addition to the usual hash methods, it also supports Read to get a variable amount of data from the hash state. Read is faster than Sum because it doesn't copy the internal state, but also modifies the internal state.

func NewKeccak

func NewKeccak() Keccak

NewKeccak creates a new SHA3 Keccak hasher