package packet import "math/rand" const letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ$%!@%&*()-=+[]{}:;.,1234567890" func randStringBytes(n int) string { b := make([]byte, n) for i := range b { b[i] = letterBytes[rand.Intn(len(letterBytes))] } return string(b) }