rand

Documentation

Overview

Package rand implements a cryptographically secure pseudorandom number generator.

Index

• Variables
• func Int(rand io.Reader, max *big.Int) (n *big.Int, err error)
• func Prime(rand io.Reader, bits int) (p *big.Int, err error)
• func Read(b []byte) (n int, err error)

Variables

var Reader io.Reader

Reader is a global, shared instance of a cryptographically strong pseudo-random generator. On Unix-like systems, Reader reads from /dev/urandom. On Windows systems, Reader uses the CryptGenRandom API.

Functions

func Int

func Int(rand io.Reader, max *big.Int) (n *big.Int, err error)

Int returns a uniform random value in [0, max).

func Prime

func Prime(rand io.Reader, bits int) (p *big.Int, err error)

Prime returns a number, p, of the given size, such that p is prime with high probability.

func Read

func Read(b []byte) (n int, err error)

Read is a helper function that calls Reader.Read.