sym enc

func main() {
   n := 0x5fffff
   key := make([]byte, 32)
   nonce := make([]byte, 12)
   copy(key, []byte("ok, this is key..."))
   copy(nonce, []byte("ok, this is nonce"))

   plaintext := []byte("ok, ewasflkjewaojhewofhaowigqherdveuiwprqufuepriauwafeshfjkaewhfhjsadjfhasukfjasjfsaahashjkfewiuhfiuwfiuahfhuawhufhuawufhiawuhfiuwafghigiuihuhuiu9yr8p98yqp3894y3-aqrst3qfdegr423qe43")
   ciphertext := make([]byte, len(plaintext))
   b, err := chacha20.NewCipher(key, nonce)
   if err != nil{
      panic(err)
   }
   s := chacha20.NewChaCha20(b)
   t1 := time.Now()
   for i:=0; i<=n; i++{
      s.XORKeyStream(ciphertext, plaintext)
   }
   t1e := time.Now()

   ciphertext1 := make([]byte, len(plaintext))
   s1,_ := salsa.NewUnauthenticatedCipher(key, nonce)
   t2 := time.Now()
   for i:=0; i<=n; i++{
      s1.XORKeyStream(ciphertext1, plaintext)
   }
   t2e := time.Now()

   akey := make([]byte, 16)
   aiv := make([]byte, 16)
   copy(akey, []byte("ok, this is key..."))
   copy(aiv, []byte("ok, this is nonce"))
   ab, err := aes.NewCipher(akey)
   if (err != nil){
      panic(err)
   }
   as := cipher.NewCTR(ab, aiv)
   t3 := time.Now()
   for i:=0; i<=n; i++{
      as.XORKeyStream(ciphertext, plaintext)
   }
   t3e := time.Now()

   sb, err := sm4.NewCipher(akey)
   if (err != nil){
      panic(err)
   }
   ss := cipher.NewCTR(sb, aiv)
   t4 := time.Now()
   for i:=0; i<=n; i++{
      ss.XORKeyStream(ciphertext, plaintext)
   }
   t4e := time.Now()

   fmt.Println(t1e.Sub(t1))
   fmt.Println(t2e.Sub(t2))
   fmt.Println(t3e.Sub(t3))
   fmt.Println(t4e.Sub(t4))
   cnt := float64(n * len(plaintext));
   cnt /= 1024 * 1024;
   fmt.Println(cnt)
   fmt.Println("end")
}