ARIA (צופן)
קוד לדוגמה

typedef unsigned int uint;
typedef unsigned char byte;
#define ARIA_BLOCK_SIZE 16
#define MODE_ENC 0
#define MODE_DEC 1
#define SWAPINT32(x) ( \
      (((x) & 0x000000FFUL) << 24) | (((x) & 0x0000FF00UL) << 8) | \
      (((x) & 0x00FF0000UL) >> 8) |  (((x) & 0xFF000000UL) >> 24))

typedef struct
{
	uint nr;
	uint k[16];
	uint ek[68];
	uint dk[68];
	bool mode = false;
} AriaContext;

//Move operation
#define MOV128(b, a) \
    { \
       (b)[0] = (a)[0]; (b)[1] = (a)[1]; \
       (b)[2] = (a)[2]; (b)[3] = (a)[3]; \
    }

//XOR operation
#define XOR128(b, a) \
    { \
       (b)[0] ^= (a)[0]; (b)[1] ^= (a)[1]; \
       (b)[2] ^= (a)[2]; (b)[3] ^= (a)[3]; \
    }

//Rotate left operation
#define ROL128(b, a, n) \
    { \
       (b)[0] = ((a)[((n) / 32 + 0) % 4] << ((n) % 32)) | ((a)[((n) / 32 + 1) % 4] >> (32 - ((n) % 32))); \
       (b)[1] = ((a)[((n) / 32 + 1) % 4] << ((n) % 32)) | ((a)[((n) / 32 + 2) % 4] >> (32 - ((n) % 32))); \
       (b)[2] = ((a)[((n) / 32 + 2) % 4] << ((n) % 32)) | ((a)[((n) / 32 + 3) % 4] >> (32 - ((n) % 32))); \
       (b)[3] = ((a)[((n) / 32 + 3) % 4] << ((n) % 32)) | ((a)[((n) / 32 + 0) % 4] >> (32 - ((n) % 32))); \
    }

//Substitution layer SL1
#define SL1(b, a) \
    { \
       byte *x = (byte *) (a); \
       byte *y = (byte *) (b); \
       y[0] = sb1[x[0]];     y[1] = sb2[x[1]]; \
       y[2] = sb3[x[2]];     y[3] = sb4[x[3]]; \
       y[4] = sb1[x[4]];     y[5] = sb2[x[5]]; \
       y[6] = sb3[x[6]];     y[7] = sb4[x[7]]; \
       y[8] = sb1[x[8]];     y[9] = sb2[x[9]]; \
       y[10] = sb3[x[10]];   y[11] = sb4[x[11]]; \
       y[12] = sb1[x[12]];   y[13] = sb2[x[13]]; \
       y[14] = sb3[x[14]];   y[15] = sb4[x[15]]; \
    }

//Substitution layer SL2
#define SL2(b, a) \
    { \
      byte *x = (byte *) (a); \
      byte *y = (byte *) (b); \
      y[0] = sb3[x[0]];       y[1] = sb4[x[1]]; \
      y[2] = sb1[x[2]];       y[3] = sb2[x[3]]; \
      y[4] = sb3[x[4]];       y[5] = sb4[x[5]]; \
      y[6] = sb1[x[6]];       y[7] = sb2[x[7]]; \
      y[8] = sb3[x[8]];       y[9] = sb4[x[9]]; \
      y[10] = sb1[x[10]];     y[11] = sb2[x[11]]; \
      y[12] = sb3[x[12]];     y[13] = sb4[x[13]]; \
      y[14] = sb1[x[14]];     y[15] = sb2[x[15]]; \
   }

//Diffusion layer
#define A(b, a) \
   { \
      byte *x = (byte *) (a); \
      byte *y = (byte *) (b); \
      y[0] = x[3] ^ x[4] ^ x[6] ^ x[8] ^ x[9] ^ x[13] ^ x[14]; \
      y[1] = x[2] ^ x[5] ^ x[7] ^ x[8] ^ x[9] ^ x[12] ^ x[15]; \
      y[2] = x[1] ^ x[4] ^ x[6] ^ x[10] ^ x[11] ^ x[12] ^ x[15]; \
      y[3] = x[0] ^ x[5] ^ x[7] ^ x[10] ^ x[11] ^ x[13] ^ x[14]; \
      y[4] = x[0] ^ x[2] ^ x[5] ^ x[8] ^ x[11] ^ x[14] ^ x[15]; \
      y[5] = x[1] ^ x[3] ^ x[4] ^ x[9] ^ x[10] ^ x[14] ^ x[15]; \
      y[6] = x[0] ^ x[2] ^ x[7] ^ x[9] ^ x[10] ^ x[12] ^ x[13]; \
      y[7] = x[1] ^ x[3] ^ x[6] ^ x[8] ^ x[11] ^ x[12] ^ x[13]; \
      y[8] = x[0] ^ x[1] ^ x[4] ^ x[7] ^ x[10] ^ x[13] ^ x[15]; \
      y[9] = x[0] ^ x[1] ^ x[5] ^ x[6] ^ x[11] ^ x[12] ^ x[14]; \
      y[10] = x[2] ^ x[3] ^ x[5] ^ x[6] ^ x[8] ^ x[13] ^ x[15]; \
      y[11] = x[2] ^ x[3] ^ x[4] ^ x[7] ^ x[9] ^ x[12] ^ x[14]; \
      y[12] = x[1] ^ x[2] ^ x[6] ^ x[7] ^ x[9] ^ x[11] ^ x[12]; \
      y[13] = x[0] ^ x[3] ^ x[6] ^ x[7] ^ x[8] ^ x[10] ^ x[13]; \
      y[14] = x[0] ^ x[3] ^ x[4] ^ x[5] ^ x[9] ^ x[11] ^ x[14]; \
      y[15] = x[1] ^ x[2] ^ x[4] ^ x[5] ^ x[8] ^ x[10] ^ x[15]; \
   }

//S-box 1
static const byte sb1[256] =
{
	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
};

//S-box 2
static const byte sb2[256] =
{
	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
};

//S-box 3
static const byte sb3[256] =
{
	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
};

//S-box 4
static const byte sb4[256] =
{
	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
};

//Key scheduling constants
static const uint c[12] =
{
	SWAPINT32(0x517CC1B7), SWAPINT32(0x27220A94), SWAPINT32(0xFE13ABE8), SWAPINT32(0xFA9A6EE0),
	SWAPINT32(0x6DB14ACC), SWAPINT32(0x9E21C820), SWAPINT32(0xFF28B1D5), SWAPINT32(0xEF5DE2B0),
	SWAPINT32(0xDB92371D), SWAPINT32(0x2126E970), SWAPINT32(0x03249775), SWAPINT32(0x04E8C90E)
};

static void OF(uint *d, const uint *rk)
{
	uint t[4];
	XOR128(d, rk);  //XOR D with RK
	SL1(t, d);      //Substitution layer SL1
	A(d, t);        //Diffusion layer
}

static void EF(uint *d, const uint *rk)
{
	uint t[4];
	XOR128(d, rk);   //XOR D with RK
	SL2(t, d);       //Substitution layer SL2
	A(d, t);         //Diffusion layer
}

int ariaInit(AriaContext *context, const byte *key, size_t keyLength)
{
	uint i;
	uint *ek, *dk;
	const uint *ck1, *ck2, *ck3;
	uint w[16];

	//128-bit master key?
	if (keyLength == 16)
	{
		ck1 = c + 0;  //Select the relevant constants
		ck2 = c + 4;
		ck3 = c + 8;
		//The number of rounds depends on the size of the master key
		context->nr = 12;
	} else if (keyLength == 24) { //192-bit master key?
	    ck1 = c + 4;  //Select the relevant constants
		ck2 = c + 8;
		ck3 = c + 0;
		//The number of rounds depends on the size of the master key
		context->nr = 14;
	} else if (keyLength == 32)	{  //256-bit master key?
		ck1 = c + 8;   //Select the relevant constants
		ck2 = c + 0;
		ck3 = c + 4;
		//The number of rounds depends on the size of the master key
		context->nr = 16;
	}
	else return -1;

	//Compute 128-bit values KL and KR
	memset(w, 0, sizeof(w));
	memcpy(w, key, keyLength);

	//Save KR...
	MOV128(w + 8, w + 4);

	//Compute intermediate values W0, W1, W2, and W3
	MOV128(w + 4, w + 0);
	OF(w + 4, ck1);
	XOR128(w + 4, w + 8);

	MOV128(w + 8, w + 4);
	EF(w + 8, ck2);
	XOR128(w + 8, w + 0);

	MOV128(w + 12, w + 8);
	OF(w + 12, ck3);
	XOR128(w + 12, w + 4);

	//Convert from big-endian byte order to host byte order
	for (i = 0; i < 16; i++)
		w[i] = SWAPINT32(w[i]);

	//Point to the encryption round keys
	ek = context->ek;

	//Compute ek1, ..., ek17 as follow
	ROL128(ek + 0, w + 4, 109);    	XOR128(ek + 0, w + 0);
	ROL128(ek + 4, w + 8, 109);  	XOR128(ek + 4, w + 4);
	ROL128(ek + 8, w + 12, 109);	XOR128(ek + 8, w + 8);
	ROL128(ek + 12, w + 0, 109);	XOR128(ek + 12, w + 12);
	ROL128(ek + 16, w + 4, 97);   	XOR128(ek + 16, w + 0);
	ROL128(ek + 20, w + 8, 97); 	XOR128(ek + 20, w + 4);
	ROL128(ek + 24, w + 12, 97);	XOR128(ek + 24, w + 8);
	ROL128(ek + 28, w + 0, 97);  	XOR128(ek + 28, w + 12);
	ROL128(ek + 32, w + 4, 61); 	XOR128(ek + 32, w + 0);
	ROL128(ek + 36, w + 8, 61); 	XOR128(ek + 36, w + 4);
	ROL128(ek + 40, w + 12, 61); 	XOR128(ek + 40, w + 8);
	ROL128(ek + 44, w + 0, 61); 	XOR128(ek + 44, w + 12);
	ROL128(ek + 48, w + 4, 31); 	XOR128(ek + 48, w + 0);
	ROL128(ek + 52, w + 8, 31); 	XOR128(ek + 52, w + 4);
	ROL128(ek + 56, w + 12, 31); 	XOR128(ek + 56, w + 8);
	ROL128(ek + 60, w + 0, 31); 	XOR128(ek + 60, w + 12);
	ROL128(ek + 64, w + 4, 19); 	XOR128(ek + 64, w + 0);

	//Convert from host byte order to big-endian byte order
	for (i = 0; i < 68; i++)
		ek[i] = SWAPINT32(ek[i]);

	//Decryption round keys are derived from the encryption round keys
	dk = context->dk;
	//Compute dk1
	MOV128(dk + 0, ek + context->nr * 4);

	//Compute dk2, ..., dk(n)
	for (i = 1; i < context->nr; i++)
		A(dk + i * 4, ek + (context->nr - i) * 4);

	//Compute dk(n + 1)
	MOV128(dk + i * 4, ek + 0);

	//No error to report
	return 0;
}


void ariaEncryptBlock(AriaContext *context, const byte *input, byte *output, bool mode)
{
	uint *ek;
	uint p[4], q[4];

	//Copy the plaintext to the buffer
	memcpy(p, input, ARIA_BLOCK_SIZE);

	//Point to the encryption/decryption round keys
	if(mode == MODE_DEC) ek = context->dk;
	else ek = context->ek;
	
	//Apply 11 rounds
	OF(p, ek + 0);     	EF(p, ek + 4);
	OF(p, ek + 8);   	EF(p, ek + 12);
	OF(p, ek + 16);  	EF(p, ek + 20);
	OF(p, ek + 24); 	EF(p, ek + 28);
	OF(p, ek + 32); 	EF(p, ek + 36);
	OF(p, ek + 40);

	//128-bit master keys require a total of 12 rounds
	if (context->nr == 12)
	{
		XOR128(p, ek + 44);
		SL2(q, p);
		XOR128(q, ek + 48);
	} else if (context->nr == 14) {  //192-bit master keys require a total of 14 rounds
		EF(p, ek + 44);
		OF(p, ek + 48);
		XOR128(p, ek + 52);
		SL2(q, p);
		XOR128(q, ek + 56);
	} else { //256-bit master keys require a total of 16 rounds
		EF(p, ek + 44);
		OF(p, ek + 48);
		EF(p, ek + 52);
		OF(p, ek + 56);
		XOR128(p, ek + 60);
		SL2(q, p);
		XOR128(q, ek + 64);
	}
	//Copy the resulting ciphertext from the buffer
	memcpy(output, q, ARIA_BLOCK_SIZE);
}