public virtual int randomInt()
{
int num;
lock (random)
{
int expressionStack_19_0 = random.nextInt();
goto Label_0019;
expressionStack_19_0 = num;
Label_0019:
num = expressionStack_19_0;
}
return(num);
}
/**
* add the pad bytes to the passed in block, returning the
* number of bytes added.
*/
public int addPadding(
byte[] inBytes,
int inOff)
{
byte code = (byte)(inBytes.Length - inOff);
while (inOff < (inBytes.Length - 1))
{
inBytes[inOff] = (byte)random.nextInt();
inOff++;
}
inBytes[inOff] = code;
return(code);
}
private byte[] encodeBlock(
byte[] inBytes,
int inOff,
int inLen)
//throws InvalidCipherTextException
{
byte[] block = new byte[engine.getInputBlockSize()];
if (forPrivateKey)
{
block[0] = 0x01; // type code 1
for (int i = 1; i != block.Length - inLen - 1; i++)
{
block[i] = (byte)0xFF;
}
}
else
{
random.nextBytes(block); // random fill
block[0] = 0x02; // type code 2
//
// a zero byte marks the end of the padding, so all
// the pad bytes must be non-zero.
//
for (int i = 1; i != block.Length - inLen - 1; i++)
{
while (block[i] == 0)
{
block[i] = (byte)random.nextInt();
}
}
}
block[block.Length - inLen - 1] = 0x00; // mark the end of the padding
Array.Copy(inBytes, inOff, block, block.Length - inLen, inLen);
return(engine.processBlock(block, 0, block.Length));
}
/**
* add the pad bytes to the passed in block, returning the
* number of bytes added.
*/
public int addPadding(
byte[] inBytes,
int inOff)
{
byte code = (byte)(inBytes.Length - inOff);
while (inOff < inBytes.Length - 1)
{
if (random == null)
{
inBytes[inOff] = 0;
}
else
{
inBytes[inOff] = (byte)random.nextInt();
}
inOff++;
}
inBytes[inOff] = code;
return(code);
}