random

package

v0.0.0-...-0b3308b Latest Latest Go to latest Published: Jun 19, 2017 License: MPL-2.0 Imports: 4 Imported by: 7

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Valid go.mod file

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Repository

github.com/dedis/crypto

Documentation ¶

Overview ¶

Package rand provides facilities for generating random or pseudorandom cryptographic objects.

XXX this package might go away and get subsumed by the currently equivalent abstract.Stream type.

Index ¶

Variables
func Bits(bitlen uint, exact bool, rand cipher.Stream) []byte
func Bool(rand cipher.Stream) bool
func Byte(rand cipher.Stream) byte
func Bytes(n int, rand cipher.Stream) []byte
func Int(mod *big.Int, rand cipher.Stream) *big.Int
func NonZeroBytes(n int, rand cipher.Stream) []byte
func Uint16(rand cipher.Stream) uint16
func Uint32(rand cipher.Stream) uint32
func Uint64(rand cipher.Stream) uint64
func Uint8(rand cipher.Stream) uint8

Constants ¶

This section is empty.

Variables ¶

View Source

var Stream cipher.Stream = new(randstream)

Standard virtual "stream cipher" that just generates fresh cryptographically strong random bits.

Functions ¶

func Bits ¶

func Bits(bitlen uint, exact bool, rand cipher.Stream) []byte

Choose a uniform random BigInt with a given maximum BitLen. If 'exact' is true, choose a BigInt with _exactly_ that BitLen, not less

func Int ¶

func Int(mod *big.Int, rand cipher.Stream) *big.Int

Choose a uniform random big.Int less than a given modulus

func NonZeroBytes ¶

func NonZeroBytes(n int, rand cipher.Stream) []byte

NonZeroBytes calls Bytes as long as it gets a slice full of '0's. This is needed when using suite.Cipher(abstract.NoKey) because the first 6 iterations returns 0000...000 as bytes for edwards & ed25519 cipher. XXX Issue reported in https://github.com/dedis/crypto/issues/70