public byte[] Wrap(byte[] input, int inOff, int length)
{
if (!forWrapping)
{
throw new InvalidOperationException("Not set for wrapping");
}
if (length % blockSize != 0)
{
throw new ArgumentException("Padding not supported");
}
int n = 2 * (1 + length / blockSize);
int V = (n - 1) * 6;
byte[] buffer = new byte[length + blockSize];
Array.Copy(input, inOff, buffer, 0, length);
//Console.WriteLine(Org.BouncyCastle.Utilities.Encoders.Hex.ToHexString(buffer));
byte[] B = new byte[blockSize / 2];
Array.Copy(buffer, 0, B, 0, blockSize / 2);
//Console.WriteLine("B0: "+ Org.BouncyCastle.Utilities.Encoders.Hex.ToHexString(B));
IList bTemp = Platform.CreateArrayList();
int bHalfBlocksLen = buffer.Length - blockSize / 2;
int bufOff = blockSize / 2;
while (bHalfBlocksLen != 0)
{
byte[] temp = new byte[blockSize / 2];
Array.Copy(buffer, bufOff, temp, 0, blockSize / 2);
//Console.WriteLine(Org.BouncyCastle.Utilities.Encoders.Hex.ToHexString(buffer));
//Console.WriteLine(buffer.Length);
//Console.WriteLine("b: " + Org.BouncyCastle.Utilities.Encoders.Hex.ToHexString(temp));
bTemp.Add(temp);
bHalfBlocksLen -= blockSize / 2;
bufOff += blockSize / 2;
}
for (int j = 0; j < V; j++)
{
Array.Copy(B, 0, buffer, 0, blockSize / 2);
Array.Copy((byte[])bTemp[0], 0, buffer, blockSize / 2, blockSize / 2);
engine.ProcessBlock(buffer, 0, buffer, 0);
byte[] intArray = Pack.UInt32_To_LE((uint)(j + 1));
for (int byteNum = 0; byteNum < intArray.Length; byteNum++)
{
buffer[byteNum + blockSize / 2] ^= intArray[byteNum];
}
Array.Copy(buffer, blockSize / 2, B, 0, blockSize / 2);
for (int i = 2; i < n; i++)
{
Array.Copy((byte[])bTemp[i - 1], 0, (byte[])bTemp[i - 2], 0, blockSize / 2);
}
Array.Copy(buffer, 0, (byte[])bTemp[n - 2], 0, blockSize / 2);
//Console.WriteLine("B" + j.ToString() + ": " + Org.BouncyCastle.Utilities.Encoders.Hex.ToHexString(B));
//Console.WriteLine("b: " + Org.BouncyCastle.Utilities.Encoders.Hex.ToHexString(bTemp[0]));
//Console.WriteLine("b: " + Org.BouncyCastle.Utilities.Encoders.Hex.ToHexString(bTemp[1]));
//Console.WriteLine("b: " + Org.BouncyCastle.Utilities.Encoders.Hex.ToHexString(bTemp[2]));
//Console.WriteLine(Org.BouncyCastle.Utilities.Encoders.Hex.ToHexString(buffer));
}
Array.Copy(B, 0, buffer, 0, blockSize / 2);
bufOff = blockSize / 2;
for (int i = 0; i < n - 1; i++)
{
Array.Copy((byte[])bTemp[i], 0, buffer, bufOff, blockSize / 2);
bufOff += blockSize / 2;
}
return(buffer);
}
public byte[] Wrap(byte[] input, int inOff, int length)
{
if (!forWrapping)
{
throw new InvalidOperationException("Not set for wrapping");
}
if ((input.Length - inOff) % blockSize != 0)
{
throw new ArgumentException("Padding not supported");
}
Check.DataLength(input, inOff, length, "input buffer too short");
int n = 2 * (1 + length / blockSize);
int V = (n - 1) * 6;
buffer = new byte[input.Length - inOff + blockSize];
Array.Copy(input, inOff, buffer, 0, input.Length - inOff);
Array.Copy(buffer, 0, B, 0, blockSize / 2);
bTemp.Clear();
int bHalfBlocksLen = buffer.Length - blockSize / 2;
int bufOff = blockSize / 2;
while (bHalfBlocksLen != 0)
{
byte[] temp = new byte[blockSize / 2];
Array.Copy(buffer, bufOff, temp, 0, blockSize / 2);
bTemp.Add(temp);
bHalfBlocksLen -= blockSize / 2;
bufOff += blockSize / 2;
}
for (int j = 0; j < V; j++)
{
Array.Copy(B, 0, buffer, 0, blockSize / 2);
Array.Copy(bTemp[0], 0, buffer, blockSize / 2, blockSize / 2);
engine.ProcessBlock(buffer, 0, buffer, 0);
intTobytes(j + 1, intArray, 0);
for (int byteNum = 0; byteNum < BYTES_IN_INTEGER; byteNum++)
{
buffer[byteNum + blockSize / 2] ^= intArray[byteNum];
}
Array.Copy(buffer, blockSize / 2, B, 0, blockSize / 2);
for (int i = 2; i < n; i++)
{
Array.Copy(bTemp[i - 1], 0, bTemp[i - 2], 0, blockSize / 2);
}
Array.Copy(buffer, 0, bTemp[n - 2], 0, blockSize / 2);
}
Array.Copy(B, 0, buffer, 0, blockSize / 2);
bufOff = blockSize / 2;
for (int i = 0; i < n - 1; i++)
{
Array.Copy(bTemp[i], 0, buffer, bufOff, blockSize / 2);
bufOff += blockSize / 2;
}
return(buffer);
}
public byte[] Wrap(byte[] input, int inOff, int length)
{
if (!forWrapping)
{
throw new InvalidOperationException("Not set for wrapping");
}
if ((input.Length - inOff) % blockSize != 0)
{
throw new ArgumentException("Padding not supported");
}
int n = 2 * (1 + input.Length / blockSize);
int V = (n - 1) * 6;
buffer = new byte[input.Length - inOff + blockSize];
Array.Copy(input, inOff, buffer, 0, input.Length - inOff);
//Console.WriteLine(Org.BouncyCastle.Utilities.Encoders.Hex.ToHexString(buffer));
byte[] B = new byte[blockSize / 2];
Array.Copy(buffer, 0, B, 0, blockSize / 2);
//Console.WriteLine("B0: "+ Org.BouncyCastle.Utilities.Encoders.Hex.ToHexString(B));
List <byte[]> bTemp = new List <byte[]>();
int bHalfBlocksLen = buffer.Length - blockSize / 2;
int bufOff = blockSize / 2;
while (bHalfBlocksLen != 0)
{
byte[] temp = new byte[blockSize / 2];
Array.Copy(buffer, bufOff, temp, 0, blockSize / 2);
//Console.WriteLine(Org.BouncyCastle.Utilities.Encoders.Hex.ToHexString(buffer));
//Console.WriteLine(buffer.Length);
//Console.WriteLine("b: " + Org.BouncyCastle.Utilities.Encoders.Hex.ToHexString(temp));
bTemp.Add(temp);
bHalfBlocksLen -= blockSize / 2;
bufOff += blockSize / 2;
}
for (int j = 0; j < V; j++)
{
Array.Copy(B, 0, buffer, 0, blockSize / 2);
Array.Copy(bTemp[0], 0, buffer, blockSize / 2, blockSize / 2);
engine.ProcessBlock(buffer, 0, buffer, 0);
intTobytes(j + 1, intArray, 0);
for (int byteNum = 0; byteNum < BYTES_IN_INTEGER; byteNum++)
{
buffer[byteNum + blockSize / 2] ^= intArray[byteNum];
}
Array.Copy(buffer, blockSize / 2, B, 0, blockSize / 2);
for (int i = 2; i < n; i++)
{
Array.Copy(bTemp[i - 1], 0, bTemp[i - 2], 0, blockSize / 2);
}
Array.Copy(buffer, 0, bTemp[n - 2], 0, blockSize / 2);
//Console.WriteLine("B" + j.ToString() + ": " + Org.BouncyCastle.Utilities.Encoders.Hex.ToHexString(B));
//Console.WriteLine("b: " + Org.BouncyCastle.Utilities.Encoders.Hex.ToHexString(bTemp[0]));
//Console.WriteLine("b: " + Org.BouncyCastle.Utilities.Encoders.Hex.ToHexString(bTemp[1]));
//Console.WriteLine("b: " + Org.BouncyCastle.Utilities.Encoders.Hex.ToHexString(bTemp[2]));
//Console.WriteLine(Org.BouncyCastle.Utilities.Encoders.Hex.ToHexString(buffer));
}
Array.Copy(B, 0, buffer, 0, blockSize / 2);
bufOff = blockSize / 2;
for (int i = 0; i < n - 1; i++)
{
Array.Copy(bTemp[i], 0, buffer, bufOff, blockSize / 2);
bufOff += blockSize / 2;
}
return(buffer);
}
