util.go
func newSeed() int64 {
	r, err := crand.Int(crand.Reader, big.NewInt(math.MaxInt64))
	if err != nil {
		panic(fmt.Errorf("failed to read random bytes: %v", err))
	}
	return r.Int64()
}
func newSeed() int64 {
	r, err := crand.Int(crand.Reader, big.NewInt(math.MaxInt64))
	if err != nil {
		panic(fmt.Errorf("failed to read random bytes: %v", err))
	}
	return r.Int64()
}
func newSeed ( ) int64 { r , err := crand . Int ( crand . Reader , big . NewInt ( math . MaxInt64 ) ) if err != nil { panic ( fmt . Errorf ( " " , err ) ) } return r . Int64 ( ) }
// returns an int64 from a crypto random source
// can be used to seed a source for a math/rand.
returns an int64 from a crypto random source can be used to seed a source for a math / rand .