randutil

Documentation

Index

• func CryptoRandInt64(random io.Reader, max int64) (int64, error)
• func NewSeedInt64Crypto() (int64, error)
• func NewSeedInt64Time() int64
• type CryptoRand
  • func NewCryptoRand(r io.Reader, s mrand.Source) CryptoRand
  • func (cr *CryptoRand) Int64n(n int64) (int64, error)
  • func (cr *CryptoRand) Intn(n int) (int, error)
  • func (cr *CryptoRand) MustInt64n(n int64) int64
  • func (cr *CryptoRand) MustIntn(n int) int

Functions

func CryptoRandInt64

func CryptoRandInt64(random io.Reader, max int64) (int64, error)

func NewSeedInt64Crypto

func NewSeedInt64Crypto() (int64, error)

NewSeedInt64Crypto creates an `int64` seed value for `math/rand`. This is preferred over `NewSeedInt64Time()`. See: https://stackoverflow.com/a/54491783/1908967

func NewSeedInt64Time

func NewSeedInt64Time() int64

NewSeedInt64Time creates an `int64` seed value for `math/rand` based on `time.Now()`. This can have reduced entropy if used constantly throughout with shourl time differentials. See: https://stackoverflow.com/a/12321192/1908967

Types

type CryptoRand

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

func NewCryptoRand

func NewCryptoRand(r io.Reader, s mrand.Source) CryptoRand

func (*CryptoRand) Int64n

func (cr *CryptoRand) Int64n(n int64) (int64, error)

func (*CryptoRand) Intn

func (cr *CryptoRand) Intn(n int) (int, error)

func (*CryptoRand) MustInt64n

func (cr *CryptoRand) MustInt64n(n int64) int64

func (*CryptoRand) MustIntn

func (cr *CryptoRand) MustIntn(n int) int