rand

Documentation

Overview

Package rand implements functions similar to math/rand in the standard library, but on top of a secure random number generator.

Index

• Variables
• func Int63() int64
• func Intn(n int) int
• func Read(p []byte) (int, error)
• func Shuffle(slice interface{})
• func String(l int) string
• func Uint64() uint64

Variables

var Reader = defaultSecureSource

Reader is the standard crypto/rand.Reader with added buffering.

Functions

func Int63

func Int63() int64

Int63 returns a cryptographically secure random int63.

func Intn

func Intn(n int) int

Intn returns, as an int, a cryptographically secure non-negative random number in [0,n). It panics if n <= 0.

func Read

func Read(p []byte) (int, error)

func Shuffle

func Shuffle(slice interface{})

Shuffle the order of elements in slice.

func String

func String(l int) string

String returns a cryptographically secure random string of characters (taken from randomCharset) of the specified length. The returned string contains ~5.8 bits of entropy per character, due to the character set used.

func Uint64

func Uint64() uint64

Uint64 returns a cryptographically secure strongly random uint64.