rand

type BufPRGReader ¶

type BufPRGReader struct {
	mrand.Source64
	Key PRGKey
	// contains filtered or unexported fields
}

func NewBufPRG(prg *PRGReader) *BufPRGReader

func NewRandomBufPRG() *BufPRGReader

func (b *BufPRGReader) Int63() int64

func (r *BufPRGReader) MathRand() *mrand.Rand

func (b *BufPRGReader) RandInt(mod *big.Int) *big.Int

func (b *BufPRGReader) Read(p []byte) (int, error)

func (b *BufPRGReader) Seed(int64)

func (b *BufPRGReader) Uint64() uint64

type PRGKey ¶

type PRGKey [aes.BlockSize]byte

func RandomPRGKey() *PRGKey

type PRGReader ¶

type PRGReader struct {
	Key PRGKey
	// contains filtered or unexported fields
}

We use the AES-CTR to generate pseudo-random numbers using a stream cipher. Go's native rand.Reader is extremely slow because it makes tons of system calls to generate a small number of pseudo-random bytes.

func NewPRG(key *PRGKey) *PRGReader

func RandomPRG() *PRGReader

func (s *PRGReader) Read(p []byte) (int, error)