public void MiniAESEncryption(HexMat hexMat)
{
//Console.WriteLine("ENCRYPTION");
//Console.WriteLine();
//hexMat.DebugDraw();
//Console.WriteLine();
hexMat.AddMiniRoundKey(subKeys[0].hexMat);
//hexMat.DebugDraw();
//Console.WriteLine();
for (int i = 1; i < 3; i++)
{
//Console.WriteLine("ROUND " + (i + 1));
//Console.WriteLine();
hexMat.MiniSubBytes();
//hexMat.DebugDraw();
//Console.WriteLine();
hexMat.ShiftRows();
// hexMat.DebugDraw();
//Console.WriteLine();
hexMat.MiniMixColumns();
//hexMat.DebugDraw();
//Console.WriteLine();
hexMat.AddMiniRoundKey(subKeys[i].hexMat);
//hexMat.DebugDraw();
//Console.WriteLine();
}
}
public void XORWord(int x, HexMat toAdd, int toAddx)
{
for (int y = 0; y < size; y++)
{
hexMat[x, y] = Cypher.XOR(hexMat[x, y], toAdd.hexMat[toAddx, y]);
}
}
public void MiniAESDecryption(HexMat hexMat)
{
//Console.WriteLine("DECRYPTION");
//Console.WriteLine();
//hexMat.DebugDraw();
//Console.WriteLine();
for (int i = 2; i > 0; i--)
{
//Console.WriteLine("ROUND " + (i + 1));
//Console.WriteLine();
hexMat.AddMiniRoundKey(subKeys[i].hexMat);
//hexMat.DebugDraw();
//Console.WriteLine();
hexMat.MiniMixColumns();
//hexMat.DebugDraw();
//Console.WriteLine();
hexMat.InvShiftRows();
//hexMat.DebugDraw();
//Console.WriteLine();
hexMat.InvMiniSubBytes();
//hexMat.DebugDraw();
//Console.WriteLine();
}
hexMat.AddMiniRoundKey(subKeys[0].hexMat);
//hexMat.DebugDraw();
//Console.WriteLine();
}
public void AESsetup(string hexText, string cypherKey)
{
mul2 = new string[16, 16];
MakeMulLookUpTable(mul2, preMul2);
mul3 = new string[16, 16];
MakeMulLookUpTable(mul3, preMul3);
mul9 = new string[16, 16];
MakeMulLookUpTable(mul9, preMul9);
mul11 = new string[16, 16];
MakeMulLookUpTable(mul11, preMul11);
mul13 = new string[16, 16];
MakeMulLookUpTable(mul13, preMul13);
mul14 = new string[16, 16];
MakeMulLookUpTable(mul14, preMul14);
this.cypherKey = new HexMat(cypherKey, 4, 2);
subKeys = new HexMat[10];
GenerateSubKeys();
MakeHexMatsTable(hexText, 4, 2);
}
public void MiniAESsetup(string hexText, string cypherKey)
{
//mul2 = new string[16, 16];
//MakeMulLookUpTable(mul2, preMul2);
//mul3 = new string[16, 16];
//MakeMulLookUpTable(mul3, preMul3);
//mul9 = new string[16, 16];
//MakeMulLookUpTable(mul9, preMul9);
//mul11 = new string[16, 16];
//MakeMulLookUpTable(mul11, preMul11);
//mul13 = new string[16, 16];
//MakeMulLookUpTable(mul13, preMul13);
//mul14 = new string[16, 16];
//MakeMulLookUpTable(mul14, preMul14);
this.cypherKey = new HexMat(cypherKey, 2, 1);
GenerateMiniSubKeys();
MakeHexMatsTable(hexText, 2, 1);
}
public HexMat MakeSubKey(HexMat keyBase, string rcon)
{
HexMat newKey = new HexMat(keyBase.size);
for (int y = 0; y < keyBase.size; y++)
{
newKey.hexMat[0, y] = keyBase.hexMat[3, y];
}
newKey.RotateWordOver(0);
newKey.SubWordBytes(0);
newKey.XORWord(0, keyBase, 0);
newKey.hexMat[0, 0] = XOR(newKey.hexMat[0, 0], rcon);
for (int x = 1; x < keyBase.size; x++)
{
for (int y = 0; y < keyBase.size; y++)
{
newKey.hexMat[x, y] = keyBase.hexMat[x, y];
}
newKey.XORWord(x, newKey, x - 1);
}
return(newKey);
}
public void MakeHexMatsTable(string text, int matSize, int tileSize)
{
int hexesSize = matSize * matSize * tileSize;
int size = text.Length / hexesSize;
if (text.Length % hexesSize != 0)
{
size += 1;
}
hexText = new HexMat[size];
for (int i = 0; i < size; i++)
{
string hex = "";
for (int s = i * hexesSize; s < (i + 1) * hexesSize; s++)
{
if (s < text.Length)
{
hex += text[s];
}
else
{
hex += "0";
}
}
hexText[i] = new HexMat(hex, matSize, tileSize);
}
}
public HexMat(HexMat hexMatBase)
{
size = hexMatBase.size;
hexMat = new string[size, size];
for (int x = 0; x < size; x++)
{
for (int y = 0; y < size; y++)
{
hexMat[x, y] = hexMatBase.hexMat[x, y];
}
}
}
public HexMat MakeMiniSubKey(HexMat keyBase, string rcon)
{
HexMat newKey = new HexMat(keyBase.size);
string hex = Cypher.MiniSubByte(keyBase.hexMat[1, 1]);
hex = Cypher.MiniXOR(hex, keyBase.hexMat[0, 0]);
hex = Cypher.MiniXOR(hex, rcon);
newKey.hexMat[0, 0] = hex;
newKey.hexMat[1, 0] = Cypher.MiniXOR(keyBase.hexMat[1, 0], hex);
newKey.hexMat[0, 1] = Cypher.MiniXOR(keyBase.hexMat[0, 1], newKey.hexMat[1, 0]);
newKey.hexMat[1, 1] = Cypher.MiniXOR(keyBase.hexMat[1, 1], newKey.hexMat[0, 1]);
return(newKey);
}
public void AESDecryption(HexMat hexMat)
{
//Console.WriteLine("DECRYPTION");
//Console.WriteLine();
//Console.WriteLine("FIRST ROUND");
//Console.WriteLine();
hexMat.AddRoundKey(subKeys[9].hexMat);
//hexMat.DebugDraw();
//Console.WriteLine();
hexMat.InvShiftRows();
//hexMat.DebugDraw();
//Console.WriteLine();
hexMat.InvSubBytes();
//hexMat.DebugDraw();
//Console.WriteLine();
for (int i = 8; i >= 0; i--)
{
//Console.WriteLine("ROUND " + (10 - i));
//Console.WriteLine();
hexMat.AddRoundKey(subKeys[i].hexMat);
//hexMat.DebugDraw();
//Console.WriteLine();
hexMat.InvMixColumns();
//hexMat.DebugDraw();
//Console.WriteLine();
hexMat.InvShiftRows();
//hexMat.DebugDraw();
//Console.WriteLine();
hexMat.InvSubBytes();
// hexMat.DebugDraw();
//Console.WriteLine();
}
}
public void AESEncryption(HexMat hexMat)
{
//Console.WriteLine("ENCRYPTION");
//Console.WriteLine();
for (int i = 0; i < 9; i++)
{
//Console.WriteLine("ROUND " + (i + 1));
//Console.WriteLine();
hexMat.SubBytes();
//hexMat.DebugDraw();
//Console.WriteLine();
hexMat.ShiftRows();
//hexMat.DebugDraw();
//Console.WriteLine();
hexMat.MixColumns();
//hexMat.DebugDraw();
//Console.WriteLine();
hexMat.AddRoundKey(subKeys[i].hexMat);
//hexMat.DebugDraw();
//Console.WriteLine();
}
//Console.WriteLine("FINAL ROUND");
//Console.WriteLine();
hexMat.SubBytes();
//hexMat.DebugDraw();
//Console.WriteLine();
hexMat.ShiftRows();
//hexMat.DebugDraw();
//Console.WriteLine();
hexMat.AddRoundKey(subKeys[9].hexMat);
//hexMat.DebugDraw();
//Console.WriteLine();
}
