work smart !!

using System;

using System.Text;

class ARIA {

    private    byte[,]    S    = {

        {

            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

        }, {

            0xe2, 0x4e, 0x54, 0xfc, 0x94, 0xc2, 0x4a, 0xcc, 0x62, 0x0d, 0x6a, 0x46, 0x3c, 0x4d, 0x8b, 0xd1,

            0x5e, 0xfa, 0x64, 0xcb, 0xb4, 0x97, 0xbe, 0x2b, 0xbc, 0x77, 0x2e, 0x03, 0xd3, 0x19, 0x59, 0xc1,

            0x1d, 0x06, 0x41, 0x6b, 0x55, 0xf0, 0x99, 0x69, 0xea, 0x9c, 0x18, 0xae, 0x63, 0xdf, 0xe7, 0xbb,

            0x00, 0x73, 0x66, 0xfb, 0x96, 0x4c, 0x85, 0xe4, 0x3a, 0x09, 0x45, 0xaa, 0x0f, 0xee, 0x10, 0xeb,

            0x2d, 0x7f, 0xf4, 0x29, 0xac, 0xcf, 0xad, 0x91, 0x8d, 0x78, 0xc8, 0x95, 0xf9, 0x2f, 0xce, 0xcd,

            0x08, 0x7a, 0x88, 0x38, 0x5c, 0x83, 0x2a, 0x28, 0x47, 0xdb, 0xb8, 0xc7, 0x93, 0xa4, 0x12, 0x53,

            0xff, 0x87, 0x0e, 0x31, 0x36, 0x21, 0x58, 0x48, 0x01, 0x8e, 0x37, 0x74, 0x32, 0xca, 0xe9, 0xb1,

            0xb7, 0xab, 0x0c, 0xd7, 0xc4, 0x56, 0x42, 0x26, 0x07, 0x98, 0x60, 0xd9, 0xb6, 0xb9, 0x11, 0x40,

            0xec, 0x20, 0x8c, 0xbd, 0xa0, 0xc9, 0x84, 0x04, 0x49, 0x23, 0xf1, 0x4f, 0x50, 0x1f, 0x13, 0xdc,

            0xd8, 0xc0, 0x9e, 0x57, 0xe3, 0xc3, 0x7b, 0x65, 0x3b, 0x02, 0x8f, 0x3e, 0xe8, 0x25, 0x92, 0xe5,

            0x15, 0xdd, 0xfd, 0x17, 0xa9, 0xbf, 0xd4, 0x9a, 0x7e, 0xc5, 0x39, 0x67, 0xfe, 0x76, 0x9d, 0x43,

            0xa7, 0xe1, 0xd0, 0xf5, 0x68, 0xf2, 0x1b, 0x34, 0x70, 0x05, 0xa3, 0x8a, 0xd5, 0x79, 0x86, 0xa8,

            0x30, 0xc6, 0x51, 0x4b, 0x1e, 0xa6, 0x27, 0xf6, 0x35, 0xd2, 0x6e, 0x24, 0x16, 0x82, 0x5f, 0xda,

            0xe6, 0x75, 0xa2, 0xef, 0x2c, 0xb2, 0x1c, 0x9f, 0x5d, 0x6f, 0x80, 0x0a, 0x72, 0x44, 0x9b, 0x6c,

            0x90, 0x0b, 0x5b, 0x33, 0x7d, 0x5a, 0x52, 0xf3, 0x61, 0xa1, 0xf7, 0xb0, 0xd6, 0x3f, 0x7c, 0x6d,

            0xed, 0x14, 0xe0, 0xa5, 0x3d, 0x22, 0xb3, 0xf8, 0x89, 0xde, 0x71, 0x1a, 0xaf, 0xba, 0xb5, 0x81

        }, {

            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

        }, {

            0x30, 0x68, 0x99, 0x1b, 0x87, 0xb9, 0x21, 0x78, 0x50, 0x39, 0xdb, 0xe1, 0x72, 0x09, 0x62, 0x3c,

            0x3e, 0x7e, 0x5e, 0x8e, 0xf1, 0xa0, 0xcc, 0xa3, 0x2a, 0x1d, 0xfb, 0xb6, 0xd6, 0x20, 0xc4, 0x8d,

            0x81, 0x65, 0xf5, 0x89, 0xcb, 0x9d, 0x77, 0xc6, 0x57, 0x43, 0x56, 0x17, 0xd4, 0x40, 0x1a, 0x4d,

            0xc0, 0x63, 0x6c, 0xe3, 0xb7, 0xc8, 0x64, 0x6a, 0x53, 0xaa, 0x38, 0x98, 0x0c, 0xf4, 0x9b, 0xed,

            0x7f, 0x22, 0x76, 0xaf, 0xdd, 0x3a, 0x0b, 0x58, 0x67, 0x88, 0x06, 0xc3, 0x35, 0x0d, 0x01, 0x8b,

            0x8c, 0xc2, 0xe6, 0x5f, 0x02, 0x24, 0x75, 0x93, 0x66, 0x1e, 0xe5, 0xe2, 0x54, 0xd8, 0x10, 0xce,

            0x7a, 0xe8, 0x08, 0x2c, 0x12, 0x97, 0x32, 0xab, 0xb4, 0x27, 0x0a, 0x23, 0xdf, 0xef, 0xca, 0xd9,

            0xb8, 0xfa, 0xdc, 0x31, 0x6b, 0xd1, 0xad, 0x19, 0x49, 0xbd, 0x51, 0x96, 0xee, 0xe4, 0xa8, 0x41,

            0xda, 0xff, 0xcd, 0x55, 0x86, 0x36, 0xbe, 0x61, 0x52, 0xf8, 0xbb, 0x0e, 0x82, 0x48, 0x69, 0x9a,

            0xe0, 0x47, 0x9e, 0x5c, 0x04, 0x4b, 0x34, 0x15, 0x79, 0x26, 0xa7, 0xde, 0x29, 0xae, 0x92, 0xd7,

            0x84, 0xe9, 0xd2, 0xba, 0x5d, 0xf3, 0xc5, 0xb0, 0xbf, 0xa4, 0x3b, 0x71, 0x44, 0x46, 0x2b, 0xfc,

            0xeb, 0x6f, 0xd5, 0xf6, 0x14, 0xfe, 0x7c, 0x70, 0x5a, 0x7d, 0xfd, 0x2f, 0x18, 0x83, 0x16, 0xa5,

            0x91, 0x1f, 0x05, 0x95, 0x74, 0xa9, 0xc1, 0x5b, 0x4a, 0x85, 0x6d, 0x13, 0x07, 0x4f, 0x4e, 0x45,

            0xb2, 0x0f, 0xc9, 0x1c, 0xa6, 0xbc, 0xec, 0x73, 0x90, 0x7b, 0xcf, 0x59, 0x8f, 0xa1, 0xf9, 0x2d,

            0xf2, 0xb1, 0x00, 0x94, 0x37, 0x9f, 0xd0, 0x2e, 0x9c, 0x6e, 0x28, 0x3f, 0x80, 0xf0, 0x3d, 0xd3,

            0x25, 0x8a, 0xb5, 0xe7, 0x42, 0xb3, 0xc7, 0xea, 0xf7, 0x4c, 0x11, 0x33, 0x03, 0xa2, 0xac, 0x60

        }

    };

    private byte[,]    KRK    = {

        {0x51, 0x7c, 0xc1, 0xb7, 0x27, 0x22, 0x0a, 0x94, 0xfe, 0x13, 0xab, 0xe8, 0xfa, 0x9a, 0x6e, 0xe0},

        {0x6d, 0xb1, 0x4a, 0xcc, 0x9e, 0x21, 0xc8, 0x20, 0xff, 0x28, 0xb1, 0xd5, 0xef, 0x5d, 0xe2, 0xb0},

        {0xdb, 0x92, 0x37, 0x1d, 0x21, 0x26, 0xe9, 0x70, 0x03, 0x24, 0x97, 0x75, 0x04, 0xe8, 0xc9, 0x0e}

    };

    byte[] DL(byte[] i) {

        byte[]    o    = new byte[16];

        byte    T;

        T        = (byte)(i[ 3] ^ i[ 4] ^ i[ 9] ^ i[14]);

        o[ 0]    = (byte)(i[ 6] ^ i[ 8] ^ i[13] ^ T);

        o[ 5]    = (byte)(i[ 1] ^ i[10] ^ i[15] ^ T);

        o[11]    = (byte)(i[ 2] ^ i[ 7] ^ i[12] ^ T);

        o[14]    = (byte)(i[ 0] ^ i[ 5] ^ i[11] ^ T);

        T        = (byte)(i[ 2] ^ i[ 5] ^ i[ 8] ^ i[15]);

        o[ 1]    = (byte)(i[ 7] ^ i[ 9] ^ i[12] ^ T);

        o[ 4]    = (byte)(i[ 0] ^ i[11] ^ i[14] ^ T);

        o[10]    = (byte)(i[ 3] ^ i[ 6] ^ i[13] ^ T);

        o[15]    = (byte)(i[ 1] ^ i[ 4] ^ i[10] ^ T);

        T        = (byte)(i[ 1] ^ i[ 6] ^ i[11] ^ i[12]);

        o[ 2]    = (byte)(i[ 4] ^ i[10] ^ i[15] ^ T);

        o[ 7]    = (byte)(i[ 3] ^ i[ 8] ^ i[13] ^ T);

        o[ 9]    = (byte)(i[ 0] ^ i[ 5] ^ i[14] ^ T);

        o[12]    = (byte)(i[ 2] ^ i[ 7] ^ i[ 9] ^ T);

        T        = (byte)(i[ 0] ^ i[ 7] ^ i[10] ^ i[13]);

        o[ 3]    = (byte)(i[ 5] ^ i[11] ^ i[14] ^ T);

        o[ 6]    = (byte)(i[ 2] ^ i[ 9] ^ i[12] ^ T);

        o[ 8]    = (byte)(i[ 1] ^ i[ 4] ^ i[15] ^ T);

        o[13]    = (byte)(i[ 3] ^ i[ 6] ^ i[ 8] ^ T);

        return    o;

    }

    void RotXOR(byte[] s, int n, ref byte[] t) {

        int        q = n/8;

        n    %= 8;

        for (int i=0; i<16; i++) {

            t[(q+i) % 16] ^= (byte)(s[i] >> n);

            if (n != 0)    t[(q+i+1) % 16] ^= (byte)(s[i] << (8-n));

        }

    }

    void KeyExpansion(byte[] k, ref byte[] w0, ref byte[] w1, ref byte[] w2, ref byte[] w3) {

        int        i;

        byte[]    Tmp    = new byte[16];

        for(i=0; i<16; i++)    w0[i]    = k[i];

        for(i=0; i<16; i++)    Tmp[i]    = S[i%4, KRK[0, i]^w0[i]];

        w1    = DL(Tmp);

        for(i=0; i<16; i++)    Tmp[i]    = S[(i+2)%4, KRK[1, i]^w1[i]];

        w2    = DL(Tmp);

        for(i=0; i<16; i++)    w2[i]    ^= w0[i];

        for(i=0; i<16; i++)    Tmp[i]    = S[i%4, KRK[2, i]^w2[i]];

        w3    = DL(Tmp);

        for(i=0; i<16; i++)    w3[i]    ^= w1[i];

    }

    void RoundKey(byte[] w0, byte[] w1, byte[] w2, byte[] w3, int n, ref byte[] rk) {

        int            i;

        for(i=0; i<16; i++)    rk[i]    = 0;

        switch(n) {

        case    0:

            RotXOR(w0, 0, ref rk);

            RotXOR(w1, 19, ref rk);

            break;

        case    1:

            RotXOR(w1, 0, ref rk);

            RotXOR(w2, 19, ref rk);

            break;

        case    2:

            RotXOR(w2, 0, ref rk);

            RotXOR(w3, 19, ref rk);

            break;

        case    3:

            RotXOR(w3, 0, ref rk);

            RotXOR(w0, 19, ref rk);

            break;

        case    4:

            RotXOR(w0, 0, ref rk);

            RotXOR(w1, 31, ref rk);

            break;

        case    5:

            RotXOR(w1, 0, ref rk);

            RotXOR(w2, 31, ref rk);

            break;

        case    6:

            RotXOR(w2, 0, ref rk);

            RotXOR(w3, 31, ref rk);

            break;

        case    7:

            RotXOR(w3, 0, ref rk);

            RotXOR(w0, 31, ref rk);

            break;

        case    8:

            RotXOR(w0, 0, ref rk);

            RotXOR(w1, 67, ref rk);

            break;

        case    9:

            RotXOR(w1, 0, ref rk);

            RotXOR(w2, 67, ref rk);

            break;

        case    10:

            RotXOR(w2, 0, ref rk);

            RotXOR(w3, 67, ref rk);

            break;

        case    11:

            RotXOR(w3, 0, ref rk);

            RotXOR(w0, 67, ref rk);

            break;

        case    12:

            RotXOR(w0, 0, ref rk);

            RotXOR(w1, 97, ref rk);

            break;

        }

    }

    static void Main(string[] args) {

        ARIA            aria    = new ARIA();

        byte[]    State    = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F};

        byte[]    Key      = {0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF};

        for(int i=0; i<1000; i++)    {State    = aria.Enc(State, Key);

        for(int j=0; j<16; j++)    Console.Write("{0:X2} ", State[j]);

        Console.WriteLine();}

    }

    byte[] Enc(byte[] Plaintext, byte[] Key) {

        int                i;

        int                j;

        byte[]    Ciphertext        = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};

        byte[]    W0                = new byte[16];

        byte[]    W1                = new byte[16];

        byte[]    W2                = new byte[16];

        byte[]    W3                = new byte[16];

        byte[]    Tmp                = new byte[16];

        byte[]    RK                = new byte[16];

        KeyExpansion(Key, ref W0, ref W1, ref W2, ref W3);

        for(j=0; j<16; j++)    Ciphertext[j]    = Plaintext[j];

        // Encryption

        for(i=0; i<5; i++) {

            RoundKey(W0, W1, W2, W3, 2*i, ref RK);

            for(j=0; j<16; j++)    Tmp[j]    = S[j%4,RK[j]^Ciphertext[j]];

            Ciphertext    = DL(Tmp);

            RoundKey(W0, W1, W2, W3, 2*i+1, ref RK);

            for(j=0; j<16; j++)    Tmp[j]    = S[(2+j)%4,RK[j]^Ciphertext[j]];

            Ciphertext    = DL(Tmp);

        }

        RoundKey(W0, W1, W2, W3, 10, ref RK);

        for(j=0; j<16; j++)    Tmp[j]    = S[j%4, RK[j]^Ciphertext[j]];

        Ciphertext    = DL(Tmp);

        RoundKey(W0, W1, W2, W3, 11, ref RK);

        for(j=0; j<16; j++)    Tmp[j]    = S[(2+j)%4, RK[j]^Ciphertext[j]];

        RoundKey(W0, W1, W2, W3, 12, ref RK);

        for(j=0; j<16; j++)    Ciphertext[j]    = (byte)(Tmp[j] ^ RK[j]);

        return    Ciphertext;

    }

}