rand

Documentation

Index

• Variables
• func RandSeed() ([]byte, error)
• type Rand
  • func New(seed []byte) *Rand
  • func (rng *Rand) ExportSeed() []byte
  • func (rng *Rand) Read(p []byte) (int, error)
  • func (rng *Rand) Seed(seed []byte)

Variables

var Reader io.Reader

Reader is a globally accessible PRNG (pseudo random number generator) instance

Functions

func RandSeed

func RandSeed() ([]byte, error)

RandSeed generates a random seed of predefined bytes

Types

type Rand

type Rand struct {
	// contains filtered or unexported fields
}

Rand implements a PRNG based on a sha3.ShakeHash

every read from which will update the internal seed as
seed := hash(seed)

func New

func New(seed []byte) *Rand

New makes PRNG instance based on the given seed

func (*Rand) ExportSeed

func (rng *Rand) ExportSeed() []byte

ExportSeed exports the seed for next generation

func (*Rand) Read

func (rng *Rand) Read(p []byte) (int, error)

Read reads out len(p) random bytes

and update the underlying state seed

func (*Rand) Seed

func (rng *Rand) Seed(seed []byte)

Seed uses provided seed to initialize the generator to a deterministic state