////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////GS:
//static int GS = 0;
//public static int GS_TX() {
//double GS = Math.random();//0,0000 0000 0000 0001...0,9999 9999 9999 9999
//GS = 1 + (int) ( Math.random() * 255 ); //GS 1...255
//return GS;
//}
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////AES:
  static int xAES = 0;             // счёт xAES
  static int xxAES = 0;            // счёт xAES
  static int x_raund = 0;          // счёт raund (Всего 10 раунда)
  ////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////state:
//state 16 байт
  static int [] state = {
          0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
  };
  ////////////////////////////////////////////////////////////////////////////////
  static int b_sbox = 0;           // буфер b_sbox
  //sbox 0...255 (16x16) //256 байт
  static int [] sbox = {
          0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
          0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
          0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
          0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,
          0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,
          0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
          0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,
          0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,
          0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
          0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,
          0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
          0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
          0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,
          0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,
          0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
          0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16
  };
  ////////////////////////////////////////////////////////////////////////////////
  static int inv_b_sbox = 0;        // буфер inv_b_sbox
  //inv_sbox 0...255 (16x16) //256 байт
  static int [] inv_sbox = {
          0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb,
          0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb,
          0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
          0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25,
          0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92,
          0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
          0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06,
          0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b,
          0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
          0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e,
          0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,
          0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
          0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f,
          0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef,
          0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
          0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d
  };
  ////////////////////////////////////////////////////////////////////////////////
//набор раундовых ключей для AES-256: 15 блоков по 16 байт. //0...239 байт
  static int [] KeySchedule = {
          0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//раунд 0
          0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//раунд 1
          0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//раунд 2
          0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//раунд 3
          0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//раунд 4
          0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//раунд 5
          0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//раунд 6
          0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//раунд 7
          0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//раунд 8
          0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//раунд 9
          0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//раунд 10
          0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//раунд 11
          0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//раунд 12
          0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//раунд 13
          0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 //раунд 14
  };
  ////////////////////////////////////////////////////////////////////////////////
//rcon 1...14(256)
  static int [] rcon = {
          0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40//(256)
  };
  ////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////KeyExpansion():
//генерация раундовых ключей
  static int Rows = 0;            // буфер Rows
  static int KE = 0; // счёт KeyExpansion
  static int st_rcon = 0;         // счёт rcon

  public static void KeyExpansion() {
    st_rcon = 0;         // сброс счёт rcon

    for (KE=0; KE<192; KE = KE + 32) { // блоки по 32 байт. //0...239 байт

//KeySchedule_1...14:
      for (xAES=0; xAES<4; xAES++) {
        KeySchedule[xAES+32+KE] = KeySchedule[xAES+28+KE]; // KeySchedule_0 > KeySchedule_1 (-4)
      };

      Rows = KeySchedule[32+KE];               // KeySchedule_1>>>
      KeySchedule[32+KE] = KeySchedule[33+KE];
      KeySchedule[33+KE] = KeySchedule[34+KE];
      KeySchedule[34+KE] = KeySchedule[35+KE];
      KeySchedule[35+KE] = Rows;

      for (xAES=0; xAES<4; xAES++) {         // sbox > KeySchedule_1[16...19]
        b_sbox = KeySchedule[xAES+32+KE];
        KeySchedule[xAES+32+KE] = sbox[b_sbox];// буфер b_sbox
      };

      for (xAES=0; xAES<4; xAES++) {        // KeySchedule_1[16...19] ^ KeySchedule_0[0...3]
        KeySchedule[xAES+32+KE] ^= KeySchedule[xAES+KE];
      };

//0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40//(256)
      KeySchedule[32+KE] ^= rcon[st_rcon];  // // счёт rcon [1...10]
      st_rcon ++;         // счёт rcon

//
      for (xAES=0; xAES<4; xAES++) {        // KeySchedule_1[16...19] > KeySchedule_1[20...23]
        KeySchedule[xAES+36+KE] = KeySchedule[xAES+32+KE];
      };
      for (xAES=0; xAES<4; xAES++) {        // KeySchedule_1[20...23] ^ KeySchedule_0[4...7]
        KeySchedule[xAES+36+KE] ^= KeySchedule[xAES+4+KE];
      };
//
      for (xAES=0; xAES<4; xAES++) {        // KeySchedule_1[20...23] > KeySchedule_1[24...27]
        KeySchedule[xAES+40+KE] = KeySchedule[xAES+36+KE];
      };
      for (xAES=0; xAES<4; xAES++) {        // KeySchedule_1[24...27] ^ KeySchedule_0[8...11]
        KeySchedule[xAES+40+KE] ^= KeySchedule[xAES+8+KE];
      };
//
      for (xAES=0; xAES<4; xAES++) {        // KeySchedule_1[24...27] > KeySchedule_1[28...31]
        KeySchedule[xAES+44+KE] = KeySchedule[xAES+40+KE];
      };
      for (xAES=0; xAES<4; xAES++) {        // KeySchedule_1[28...31] ^ KeySchedule_0[12...15]
        KeySchedule[xAES+44+KE] ^= KeySchedule[xAES+12+KE];
      };


//
      for (xAES=0; xAES<4; xAES++) {         // sbox > KeySchedule_1[16...19]
        b_sbox = KeySchedule[xAES+44+KE];
        KeySchedule[xAES+48+KE] = sbox[b_sbox];// буфер b_sbox
      };
      for (xAES=0; xAES<4; xAES++) {        // KeySchedule_1[28...31] ^ KeySchedule_0[12...15]
        KeySchedule[xAES+48+KE] ^= KeySchedule[xAES+16+KE];
      };

//
      for (xAES=0; xAES<4; xAES++) {        // KeySchedule_1[20...23] > KeySchedule_1[24...27]
        KeySchedule[xAES+52+KE] = KeySchedule[xAES+48+KE];
      };
      for (xAES=0; xAES<4; xAES++) {        // KeySchedule_1[24...27] ^ KeySchedule_0[8...11]
        KeySchedule[xAES+52+KE] ^= KeySchedule[xAES+20+KE];
      };

//
      for (xAES=0; xAES<4; xAES++) {        // KeySchedule_1[24...27] > KeySchedule_1[28...31]
        KeySchedule[xAES+56+KE] = KeySchedule[xAES+52+KE];
      };
      for (xAES=0; xAES<4; xAES++) {        // KeySchedule_1[28...31] ^ KeySchedule_0[12...15]
        KeySchedule[xAES+56+KE] ^= KeySchedule[xAES+24+KE];
      };

//
      for (xAES=0; xAES<4; xAES++) {        // KeySchedule_1[24...27] > KeySchedule_1[28...31]
        KeySchedule[xAES+60+KE] = KeySchedule[xAES+56+KE];
      };
      for (xAES=0; xAES<4; xAES++) {        // KeySchedule_1[28...31] ^ KeySchedule_0[12...15]
        KeySchedule[xAES+60+KE] ^= KeySchedule[xAES+28+KE];
      };

    };
////////////////////////////////////////////////////////////////////////////////
//KeySchedule_1...14:
    for (xAES=0; xAES<4; xAES++) {
      KeySchedule[xAES+32+KE] = KeySchedule[xAES+28+KE]; // KeySchedule_0 > KeySchedule_1 (-4)
    };

    Rows = KeySchedule[32+KE];               // KeySchedule_1>>>
    KeySchedule[32+KE] = KeySchedule[33+KE];
    KeySchedule[33+KE] = KeySchedule[34+KE];
    KeySchedule[34+KE] = KeySchedule[35+KE];
    KeySchedule[35+KE] = Rows;

    for (xAES=0; xAES<4; xAES++) {         // sbox > KeySchedule_1[16...19]
      b_sbox = KeySchedule[xAES+32+KE];
      KeySchedule[xAES+32+KE] = sbox[b_sbox];// буфер b_sbox
    };

    for (xAES=0; xAES<4; xAES++) {        // KeySchedule_1[16...19] ^ KeySchedule_0[0...3]
      KeySchedule[xAES+32+KE] ^= KeySchedule[xAES+KE];
    };

//0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40//(256)
    KeySchedule[32+KE] ^= rcon[st_rcon];  // // счёт rcon [1...10]
    st_rcon ++;         // счёт rcon

//
    for (xAES=0; xAES<4; xAES++) {        // KeySchedule_1[16...19] > KeySchedule_1[20...23]
      KeySchedule[xAES+36+KE] = KeySchedule[xAES+32+KE];
    };
    for (xAES=0; xAES<4; xAES++) {        // KeySchedule_1[20...23] ^ KeySchedule_0[4...7]
      KeySchedule[xAES+36+KE] ^= KeySchedule[xAES+4+KE];
    };
//
    for (xAES=0; xAES<4; xAES++) {        // KeySchedule_1[20...23] > KeySchedule_1[24...27]
      KeySchedule[xAES+40+KE] = KeySchedule[xAES+36+KE];
    };
    for (xAES=0; xAES<4; xAES++) {        // KeySchedule_1[24...27] ^ KeySchedule_0[8...11]
      KeySchedule[xAES+40+KE] ^= KeySchedule[xAES+8+KE];
    };
//
    for (xAES=0; xAES<4; xAES++) {        // KeySchedule_1[24...27] > KeySchedule_1[28...31]
      KeySchedule[xAES+44+KE] = KeySchedule[xAES+40+KE];
    };
    for (xAES=0; xAES<4; xAES++) {        // KeySchedule_1[28...31] ^ KeySchedule_0[12...15]
      KeySchedule[xAES+44+KE] ^= KeySchedule[xAES+12+KE];
    };

  }
  ////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////Key:
  static int Key_N_ = 0;   //Key_N_ = 0,1 -Номер Key -начальное 0
    static int b_Key_N_ = 2; //0,1 -Буфер Номер Key -начальное 2
    ////////////////////////////////////////K_int[160]
    static int [] K_int = {
////////////////////////////////////////0...15
////////////////vektor_0: 16 байт
            0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
////////////////////////////////////////16...47
////////////////Key_0: 32 байт
            0xa1,0x1f,0xb4,0x03,0xc0,0x12,0x89,0x58,0x4d,0xcb,0xf0,0x72,0x8e,0x03,0x40,0xb5,
            0x3e,0x07,0x8f,0x9b,0xcd,0xe2,0x38,0xe1,0xec,0x8a,0x51,0x6b,0xf7,0xe2,0x7b,0x28,
////////////////////////////////////////48...63
////////////////vektor_1: 16 байт
            0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
////////////////////////////////////////64...95
////////////////Key_1: 32 байт
            0xe8,0x45,0x12,0xa0,0xf6,0x89,0x1c,0xde,0x41,0xef,0xf3,0x9a,0x6d,0x20,0xe0,0x8a,
            0x40,0xe2,0x1a,0xd4,0x32,0x6d,0x8a,0x72,0x5d,0xdd,0x50,0x7e,0x9b,0xcd,0xc8,0xea
    };
////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////Key_String:
static int xK = 0;     //счёт Key String
    static String Key_String = "";
    /////////////////////////////////////////////////////////////////Key_TX() > LCD:
    public static void Key_Str() {
/////////////////////////////////////// vektor_0:
        Key_String = "V0";
        if (Key_N_ == 0){Key_String += " > ";}
        else            {Key_String += "    ";};
        for (xK=0; xK<16; xK++) {
            Key_String += LCD_HEX(K_int[xK]);
        };
        Key_String += " |  ";
/////////////////////////////////////// Key_0:
        for (xK=16; xK<48; xK++) {
            Key_String += LCD_HEX(K_int[xK]);
        };
        Key_String += "\r\n";
/////////////////////////////////////// vektor_1:
        Key_String += "V1";
        if (Key_N_ == 1){Key_String += " > ";}
        else            {Key_String += "    ";};
        for (xK=48; xK<64; xK++) {
            Key_String += LCD_HEX(K_int[xK]);
        };
        Key_String += " |  ";
/////////////////////////////////////// Key_1:
        for (xK=64; xK<96; xK++) {
            Key_String += LCD_HEX(K_int[xK]);
        };
    }
    ////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////счёт vektor_0:
    public static void vektor_0() {
        if (K_int[7] == 0) { //проверка MAX K_int[] больше
            for (xAES=15; xAES>7; xAES--) {
                if (K_int[xAES] == 0xFF) {K_int[xAES]=0;}
                else {K_int[xAES]++; xAES=1;};
            };
        }
    }
    ////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////счёт vektor_1:
    public static void vektor_1() {
        if (K_int[55] == 0) { //проверка MAX K_int[] больше
            for (xAES=63; xAES>55; xAES--) {
                if (K_int[xAES] == 0xFF) {K_int[xAES]=0;}
                else {K_int[xAES]++; xAES=1;};
            };
        }
    }
    ////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////Key_0 > KeySchedule:
    public static void Key_0_Key() {
        for (xAES=0; xAES<32; xAES++) {
            KeySchedule[xAES] = K_int[xAES+16];     // K_int > KeySchedule
        };
///////////////////////////////
        KeyExpansion();                           // генерация раундовых ключей
    }
  ////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////Key_1 > KeySchedule:
//Key_1 > KeySchedule: 32 байт
  public static void Key_1_Key() {
    for (xAES=0; xAES<32; xAES++) {
      KeySchedule[xAES] = K_int[xAES+64];     // K_int > KeySchedule
    };
///////////////////////////////
    KeyExpansion();                           // генерация раундовых ключей
  }
  ////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////SubBytes():
  public static void SubBytes() {
    for (xAES=0; xAES<16; xAES++) {      // sbox > state[0...15]
      b_sbox = state[xAES];                // буфер b_sbox
      state[xAES] = sbox[b_sbox];
    };
  }
  ////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////InvSubBytes():
  public static void InvSubBytes() {
    for (xAES=0; xAES<16; xAES++) {      // inv_sbox > state[0...15]
      inv_b_sbox = state[xAES];            // буфер inv_b_sbox
      state[xAES] = inv_sbox[inv_b_sbox];
    };
  }
  ////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////ShiftRows():
//static int Rows = 0;               // буфер Rows
  public static void ShiftRows() {
    Rows = state[1];
    state[1] = state[5];
    state[5] = state[9];
    state[9] = state[13];
    state[13] = Rows;

    Rows = state[2];
    state[2] = state[10];
    state[10] = Rows;
    Rows = state[6];
    state[6] = state[14];
    state[14] = Rows;

    Rows = state[3];
    state[3] = state[15];
    state[15] = state[11];
    state[11] = state[7];
    state[7] = Rows;
  }
  ////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////InvShiftRows():
//static int Rows = 0;               // буфер Rows
  public static void InvShiftRows() {
    Rows = state[1];
    state[1] = state[13];
    state[13] = state[9];
    state[9] = state[5];
    state[5] = Rows;

    Rows = state[2];
    state[2] = state[10];
    state[10] = Rows;
    Rows = state[6];
    state[6] = state[14];
    state[14] = Rows;

    Rows = state[3];
    state[3] = state[7];
    state[7] = state[11];
    state[11] = state[15];
    state[15] = Rows;
  }
  ////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////MixColumns():
  static int state_0 = 0;       // буфер state
  static int state_1 = 0;       // буфер state
  static int state_2 = 0;       // буфер state
  static int state_3 = 0;       // буфер state
  //////////////////////////////////
  static int xbMix = 0; //буфер bMix
  static int bMix = 0;  //bMix
  public static void Mix() {
    xbMix = bMix & 0x80;  // 0b10000000
    if (xbMix == 0x80) {bMix = (( bMix << 1 ) & 0x00FF )^ 0x1b;} //0x1B//P(x)=x^8+x^4+x^3+x+1
    else               {bMix =  ( bMix << 1 ) & 0x00FF;};
  }
  //////////////////////////////////
  public static void MixColumns() {
    for (xAES=0; xAES<16; xAES=xAES+4) { // state[0...15]
//////////////////////////////////state[0]:
//*2 //n*{02}
      bMix = state[xAES]; Mix(); state_0 = bMix;
//*3 //n*{02} + n*{01}
      bMix = state[xAES+1]; Mix(); state_0 ^= bMix;
      state_0 ^= state[xAES+1];
//*1 //n*{01}
      state_0 ^= state[xAES+2];
//*1 //n*{01}
      state_0 ^= state[xAES+3];
//////////////////////////////////state[1]:
//*1 //n*{01}
      state_1 = state[xAES];
//*2 //n*{02}
      bMix = state[xAES+1]; Mix(); state_1^= bMix;
//*3 //n*{02} + n*{01}
      bMix = state[xAES+2]; Mix(); state_1^= bMix;
      state_1 ^= state[xAES+2];
//*1 //n*{01}
      state_1 ^= state[xAES+3];
//////////////////////////////////state[2]:
//*1 //n*{01}
      state_2 = state[xAES];
//*1 //n*{01}
      state_2 ^= state[xAES+1];
//*2 //n*{02}
      bMix = state[xAES+2]; Mix(); state_2^= bMix;
//*3 //n*{02} + n*{01}
      bMix = state[xAES+3]; Mix(); state_2^= bMix;
      state_2 ^= state[xAES+3];
//////////////////////////////////state[3]:
//*3 //n*{02} + n*{01}
      bMix = state[xAES]; Mix(); state_3 = bMix;
      state_3 ^= state[xAES];
//*1 //n*{01}
      state_3 ^= state[xAES+1];
//*1 //n*{01}
      state_3 ^= state[xAES+2];
//*2 //n*{02}
      bMix = state[xAES+3]; Mix();
      state_3 ^= bMix;
//////////////////////////////////state_0,1,2,3 > state[0...3]:
      state[xAES] = state_0; state[xAES+1] = state_1; state[xAES+2] = state_2; state[xAES+3] = state_3;
//////////////////////////////////
    };
  }
  ////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////InvMixColumns():
  public static void InvMixColumns() {
    for (xAES=0; xAES<16; xAES=xAES+4) { // state[0...15]
//////////////////////////////////state[0]:
//*e //n*{02}*{02}*{02} + n*{02}*{02} + n*{02}
      bMix = state[xAES]; Mix(); Mix(); Mix(); state_0 = bMix;
      bMix = state[xAES]; Mix(); Mix(); state_0 ^= bMix;
      bMix = state[xAES]; Mix(); state_0 ^= bMix;
//*b //n*{02}*{02}*{02} + n*{02} + n*{01}
      bMix = state[xAES+1]; Mix(); Mix(); Mix(); state_0 ^= bMix;
      bMix = state[xAES+1]; Mix(); state_0 ^= bMix;
      state_0 ^=  state[xAES+1];
//*d //n*{02}*{02}*{02} + n*{02}*{02} + n*{01}
      bMix = state[xAES+2]; Mix(); Mix(); Mix(); state_0 ^= bMix;
      bMix = state[xAES+2]; Mix(); Mix(); state_0 ^= bMix;
      state_0 ^= state[xAES+2];
//*9 //n*{02}*{02}*{02} + n*{01}
      bMix = state[xAES+3]; Mix(); Mix(); Mix(); state_0 ^= bMix;
      state_0 ^= state[xAES+3];
//////////////////////////////////state[1]:
//*9 //n*{02}*{02}*{02} + n*{01}
      bMix = state[xAES]; Mix(); Mix(); Mix(); state_1 = bMix;
      state_1 ^= state[xAES];
//*e //n*{02}*{02}*{02} + n*{02}*{02} + n*{02}
      bMix = state[xAES+1]; Mix(); Mix(); Mix(); state_1 ^= bMix;
      bMix = state[xAES+1]; Mix(); Mix(); state_1 ^= bMix;
      bMix = state[xAES+1]; Mix(); state_1 ^= bMix;
//*b //n*{02}*{02}*{02} + n*{02} + n*{01}
      bMix = state[xAES+2]; Mix(); Mix(); Mix(); state_1 ^= bMix;
      bMix = state[xAES+2]; Mix(); state_1 ^= bMix;
      state_1 ^= state[xAES+2];
//*d //n*{02}*{02}*{02} + n*{02}*{02} + n*{01}
      bMix = state[xAES+3]; Mix(); Mix(); Mix(); state_1 ^= bMix;
      bMix = state[xAES+3]; Mix(); Mix(); state_1 ^= bMix;
      state_1 ^= state[xAES+3];
//////////////////////////////////state[2]:
//*d //n*{02}*{02}*{02} + n*{02}*{02} + n*{01}
      bMix = state[xAES]; Mix(); Mix(); Mix(); state_2 = bMix;
      bMix = state[xAES]; Mix(); Mix(); state_2 ^= bMix;
      state_2 ^= state[xAES];
//*9 //n*{02}*{02}*{02} + n*{01}
      bMix = state[xAES+1]; Mix(); Mix(); Mix(); state_2 ^= bMix;
      state_2 ^= state[xAES+1];
//*e //n*{02}*{02}*{02} + n*{02}*{02} + n*{02}
      bMix = state[xAES+2]; Mix(); Mix(); Mix(); state_2 ^= bMix;
      bMix = state[xAES+2]; Mix(); Mix(); state_2 ^= bMix;
      bMix = state[xAES+2]; Mix(); state_2 ^= bMix;
//*b //n*{02}*{02}*{02} + n*{02} + n*{01}
      bMix = state[xAES+3]; Mix(); Mix(); Mix(); state_2 ^= bMix;
      bMix = state[xAES+3]; Mix(); state_2 ^= bMix;
      state_2 ^= state[xAES+3];
//////////////////////////////////state[3]:
//*b //n*{02}*{02}*{02} + n*{02} + n*{01}
      bMix = state[xAES]; Mix(); Mix(); Mix(); state_3 = bMix;
      bMix = state[xAES]; Mix(); state_3 ^= bMix;
      state_3 ^= state[xAES];
//*d //n*{02}*{02}*{02} + n*{02}*{02} + n*{01}
      bMix = state[xAES+1]; Mix(); Mix(); Mix(); state_3 ^= bMix;
      bMix = state[xAES+1]; Mix(); Mix(); state_3 ^= bMix;
      state_3 ^= state[xAES+1];
//*9 //n*{02}*{02}*{02} + n*{01}
      bMix = state[xAES+2]; Mix(); Mix(); Mix(); state_3 ^= bMix;
      state_3 ^= state[xAES+2];
//*e //n*{02}*{02}*{02} + n*{02}*{02} + n*{02}
      bMix = state[xAES+3]; Mix(); Mix(); Mix(); state_3 ^= bMix;
      bMix = state[xAES+3]; Mix(); Mix(); state_3 ^= bMix;
      bMix = state[xAES+3]; Mix(); state_3 ^= bMix;
//////////////////////////////////state_0,1,2,3 > state[0...3]:
      state[xAES] = state_0; state[xAES+1] = state_1; state[xAES+2] = state_2; state[xAES+3] = state_3;
//////////////////////////////////
    };
  }
  ////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////AddRoundKey():
  public static void AddRoundKey() {
    xxAES = (x_raund << 4);
    for (xAES=0; xAES<16; xAES++) {
      state[xAES] ^= KeySchedule[xxAES];       // state ^ KeySchedule
      xxAES ++;
    };
  }
  ////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////Шифрование:
  public static void encrypt() {
    x_raund = 0;
    AddRoundKey();

    for (x_raund=1; x_raund<14; x_raund++) { //x_raund=1...x_raund=14
      SubBytes();
      ShiftRows();
      MixColumns();
      AddRoundKey();
    };

    x_raund = 14;
    SubBytes();
    ShiftRows();
    AddRoundKey();
  }
  ////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////Расшифрование:
  public static void decrypt() {
    x_raund = 14;
    AddRoundKey();

    for (x_raund=13; x_raund>0; x_raund--) { //x_raund=13...x_raund=1
      InvShiftRows();
      InvSubBytes();
      AddRoundKey();
      InvMixColumns();
    };

    x_raund = 0;
    InvShiftRows();
    InvSubBytes();
    AddRoundKey();
  }
  ////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////gamma TX:
  static int TX_gamma_st = 0; //счёт gamma TX
  //////////////////////////////////////////////////////////////////шифрование TX:
  public static void AES_TX() {
//выбор ключей:
//b_Key_N_ = 0,1 -Буфер Номер Key
    if (b_Key_N_ != Key_N_){
/////////////////////////////////// b_Key_N_ != Key_N_ :
//////////////////////////Key_N == 0
      if (Key_N_ == 0){
        Key_0_Key();//Key_0 (Заводские настройки) > KeySchedule
      };
//////////////////////////Key_N == 1
      if (Key_N_ == 1){
        Key_1_Key();//Key_1 > KeySchedule
      };
//////////////////////////////////Key_N_ > b_Key_N_
      b_Key_N_ = Key_N_;
    };
//////////////////////////////////vektor:
//TX_int[0] = GS;         //GS = 1...255
//TX_int[1]...TX_int[15] = vektor[1]...vektor[15];
//////////////////////////////////
//vektor > state.
    for (xAES=0; xAES<16; xAES++) {
      state[xAES] = TX_int[xAES];    // TX_int > state
    };
//Блок простой замены.
    encrypt(); // encrypt
//vektor > TX_int.
    for (xAES=0; xAES<16; xAES++) {
      TX_int[xAES] = state[xAES];    // state > TX_int
    };
///////////////////////////////////////////////////////
    for (TX_gamma_st = 16; TX_gamma_st < TX_len; TX_gamma_st = TX_gamma_st + 16) {
///////////////////////////////////////////////////////
//Блок гаммы.
//Блок простой замены.
      encrypt(); // encrypt
//цикл шифрования.
      for (xAES=0; xAES<16; xAES++) {
        TX_int[xAES+TX_gamma_st] ^= state[xAES]; // state ^ TX_int
      };
    };
  }
  ////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////gamma RX:
  static int RX_gamma_st = 0; //счёт gamma RX
  //////////////////////////////////////////////////////////////////////vektor_RX:
  static int [] vektor_RX = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; //16 байт
  ///////////////////////////////////////////////////////////////расшифрование RX:
  public static void AES_RX() {
//////////////////////////////////vektor:
//TX_int[0] = GS;         //GS = 1...255
//TX_int[1]...TX_int[15] = vektor[1]...vektor[15];
//////////////////////////////////
//Входной блок > state.
    for (xAES=0; xAES<16; xAES++) {
      state[xAES] = RX_int[xAES];    // RX_int > state
    };
//Блок простой замены.
    decrypt(); // decrypt
//vektor > vektor_RX.
    for (xAES=0; xAES<16; xAES++) {
      vektor_RX[xAES] = state[xAES]; // state > vektor
    };
//Входной блок > state.
    for (xAES=0; xAES<16; xAES++) {
      state[xAES] = RX_int[xAES];    // RX_int > state
    };
//vektor > RX_int.
    for (xAES=0; xAES<16; xAES++) {
      RX_int[xAES] = vektor_RX[xAES];// vektor > RX_int
    };
///////////////////////////////////////////////////////
    for (RX_gamma_st = 16; RX_gamma_st < RX_len; RX_gamma_st = RX_gamma_st + 16) {
///////////////////////////////////////////////////////
//Блок гаммы.
//Блок простой замены.
      encrypt(); // encrypt
//цикл шифрования.
      for (xAES=0; xAES<16; xAES++) {
        RX_int[xAES+RX_gamma_st] ^= state[xAES];  // RX_int ^ state
      };
    };
  }
////////////////////////////////////////////////////////////////////////////////