public KalynaBlock Decrypt(KalynaBlock cipherText)
{
var plainText = new KalynaBlock(cipherText);
plainText.SubRoundKey(RoundsKeys[10]);
plainText.MixColumns(StaticTables.MdsRev);
plainText.ShiftRowsRev();
plainText.SubBytes(StaticTables.kalynaInverseSBoxes);
for (var i = 9; 1 <= i; --i)
{
plainText.Xor(RoundsKeys[i]);
plainText.MixColumns(StaticTables.MdsRev);
plainText.ShiftRowsRev();
plainText.SubBytes(StaticTables.kalynaInverseSBoxes);
}
plainText.SubRoundKey(RoundsKeys[0]);
return(plainText);
}
public void Xor(KalynaBlock key)
{
for (var i = 0; i < Data.Count; i++)
{
Data[i] ^= key.Data[i];
}
}
public KalynaBlock Encrypt(KalynaBlock plainText)
{
var cipherText = new KalynaBlock(plainText);
cipherText.AddRoundKey(RoundsKeys[0]);
for (var i = 1; i <= 9; i++)
{
cipherText.SubBytes(StaticTables.kalynaForwardSBoxes);
cipherText.ShiftRows();
cipherText.MixColumns(StaticTables.Mds);
cipherText.Xor(RoundsKeys[i]);
}
cipherText.SubBytes(StaticTables.kalynaForwardSBoxes);
cipherText.ShiftRows();
cipherText.MixColumns(StaticTables.Mds);
cipherText.AddRoundKey(RoundsKeys[10]);
return(cipherText);
}
public byte[] Decrypt(byte[] chiphertext)
{
KalynaBlock chipherBlock = new KalynaBlock(chiphertext);
KalynaBlock plainBlock = Decrypt(chipherBlock);
{
plainBlock.Data = new List <byte>(chiphertext);
var t = plainBlock.Data[0];
plainBlock.Data[0] = plainBlock.Data[15];
plainBlock.Data[15] = t;
}
return(plainBlock.Data.ToArray());
}
public byte[] Encrypt(byte[] plaintext)
{
KalynaBlock plainBlock = new KalynaBlock(plaintext);
KalynaBlock chipherBlock = Encrypt(plainBlock);
{
chipherBlock.Data = new List <byte>(plaintext);
var t = chipherBlock.Data[0];
chipherBlock.Data[0] = chipherBlock.Data[15];
chipherBlock.Data[15] = t;
}
return(chipherBlock.Data.ToArray());
}
public void SubRoundKey(KalynaBlock key)
{
const int n = 8;
for (var i = 0; i < 16; i += n)
{
var dataBi = new BigInteger(Data.Where((d, idx) => i <= idx && idx < i + n).ToArray());
dataBi -= new BigInteger(key.Data.Where((d, idx) => i <= idx && idx < i + n).ToArray());
var newData = dataBi.ToByteArray();
for (var j = 0; j < n; j++)
{
Data[i + j] = j < newData.Length ? newData[j] : (byte)0;
}
}
}
public void GenerateRoundsKeys()
{
for (var i = 0; i <= 10; i++)
{
RoundsKeys.Add(new KalynaBlock());
}
var kt = GenerateKt();
for (var i = 0; i <= 10; i += 2)
{
var roundKey = RoundsKeys[i];
roundKey.Data = new List <byte>(StaticTables.V);
roundKey.ShiftLeft(i / 2);
var keyCopy = new KalynaBlock(Key);
keyCopy.RotateRight(32 * i);
roundKey.AddRoundKey(kt);
var copy = new KalynaBlock(roundKey);
roundKey.AddRoundKey(keyCopy);
roundKey.SubBytes(StaticTables.kalynaForwardSBoxes);
roundKey.ShiftRows();
roundKey.MixColumns(StaticTables.Mds);
roundKey.Xor(copy);
roundKey.SubBytes(StaticTables.kalynaForwardSBoxes);
roundKey.ShiftRows();
roundKey.MixColumns(StaticTables.Mds);
roundKey.AddRoundKey(copy);
RoundsKeys[i] = roundKey;
}
for (var i = 1; i <= 9; i += 2)
{
RoundsKeys[i].Data = RoundsKeys[i - 1].Data;
RoundsKeys[i].RotateLeft(56);
}
}
private KalynaBlock GenerateKt()
{
var kt = new KalynaBlock(new byte[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5 });
kt.AddRoundKey(Key);
kt.SubBytes(StaticTables.kalynaForwardSBoxes);
kt.ShiftRows();
kt.MixColumns(StaticTables.Mds);
kt.Xor(Key);
kt.SubBytes(StaticTables.kalynaForwardSBoxes);
kt.ShiftRows();
kt.MixColumns(StaticTables.Mds);
kt.AddRoundKey(Key);
kt.SubBytes(StaticTables.kalynaForwardSBoxes);
kt.ShiftRows();
kt.MixColumns(StaticTables.Mds);
kt = new KalynaBlock
{
Data = new List <byte>
{
0x7D, 0xD8, 0xE2, 0x38, 0x2F, 0xBC, 0x5C, 0xD0,
0xA1, 0x5B, 0x77, 0x3B, 0x65, 0x1F, 0x2F, 0x86
}
};
return(kt);
}
public KalynaBlock(KalynaBlock block)
{
Data = new List <byte>(block.Data);
}
public Kalyna(byte[] key)
{
Key = new KalynaBlock(key);
GenerateRoundsKeys();
}
static void Main(string[] args)
{
//AES
AESBlock input1 = new AESBlock(new byte[] { 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 });
Console.WriteLine("AES:");
Console.WriteLine("\tInput block: " + input1.ToString());
AES aes = new AES(new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 });
AESBlock chipheredBlock1 = aes.Encrypt(input1);
Console.WriteLine("\tEncripted block: " + chipheredBlock1.ToString());
AESBlock output1 = aes.Decrypt(chipheredBlock1);
Console.WriteLine("\tDecripted vlock: " + output1.ToString());
//Kalyna
KalynaBlock input2 = new KalynaBlock(new byte[] { 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 });
Console.WriteLine("Kalyna:");
Console.WriteLine("\tInput block: " + input2.ToString());
Kalyna kalyna = new Kalyna(new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 });
KalynaBlock chipheredBlock2 = kalyna.Encrypt(input2);
Console.WriteLine("\tEncripted block: " + chipheredBlock2.ToString());
KalynaBlock output2 = kalyna.Decrypt(chipheredBlock2);
Console.WriteLine("\tDecripted vlock: " + output2.ToString());
var rootpath = Directory.GetCurrentDirectory();
var inpFileName = "Lorem_ipsum.pdf";
//AES
{
Console.WriteLine("AES:");
FileChipherer chipherer = new FileChipherer(ChiphererAlgo.AES, new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 });
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
chipherer.Encrypt(Path.Combine(rootpath, inpFileName), Path.Combine(rootpath, "Encr_" + inpFileName));
stopwatch.Stop();
Console.WriteLine($"\tSpent {stopwatch.ElapsedMilliseconds} ms to encrypt");
stopwatch.Reset();
stopwatch.Start();
chipherer.Decrypt(Path.Combine(rootpath, "Encr_" + inpFileName), Path.Combine(rootpath, "Decr_" + inpFileName));
stopwatch.Stop();
Console.WriteLine($"\tSpent {stopwatch.ElapsedMilliseconds} ms to decrypt");
}
//Kalyna
{
Console.WriteLine("Kalyna:");
FileChipherer chipherer = new FileChipherer(ChiphererAlgo.Kalyna, new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 });
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
chipherer.Encrypt(Path.Combine(rootpath, inpFileName), Path.Combine(rootpath, "Encr_" + inpFileName));
stopwatch.Stop();
Console.WriteLine($"\tSpent {stopwatch.ElapsedMilliseconds} ms to encrypt");
stopwatch.Reset();
stopwatch.Start();
chipherer.Decrypt(Path.Combine(rootpath, "Encr_" + inpFileName), Path.Combine(rootpath, "Decr_" + inpFileName));
stopwatch.Stop();
Console.WriteLine($"\tSpent {stopwatch.ElapsedMilliseconds} ms to decrypt");
}
Console.ReadKey();
}
