chacha20prng

Documentation

Index

• Constants
• type Reader
  • func New(seed []byte, run uint32) *Reader
  • func (r *Reader) Next(n int) []byte
  • func (r *Reader) Read(b []byte) (int, error)

Constants

const SeedSize = 32

SeedSize is the required length of seeds for New.

Types

type Reader

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

Reader is a ChaCha20 PRNG for a DC-net run. It implements io.Reader.

func New

func New(seed []byte, run uint32) *Reader

New creates a ChaCha20 PRNG seeded by a 32-byte key and a run iteration. The returned reader is not safe for concurrent access. This will panic if the length of seed is not SeedSize bytes.

func (*Reader) Next

func (r *Reader) Next(n int) []byte

Next returns the next n bytes from the reader.

func (*Reader) Read

func (r *Reader) Read(b []byte) (int, error)

Read implements io.Reader.