cryptoutil

Documentation

Overview

Package cryptoutil provides utility functions for cryptographic operations.

Index

• Constants
• func RandomIndex(n int, randReader io.Reader) (int, error)

Constants

const ErrDivisionByZero xerrors.Error = "division by zero; input must be greater than zero"

ErrDivisionByZero is returned when a division by zero is attempted.

Functions

func RandomIndex

func RandomIndex(n int, randReader io.Reader) (int, error)

RandomIndex generates a cryptographically secure random index in the range [0, n-1]. It tries to eliminate bias by using the rejection method.