public void addElement(String s)
{
//word=binascii.a2b_qp(qgram) # convert to binary
String mykey = "zuxujesw";
byte[] keyBytes = Encoding.UTF8.GetBytes(mykey);
String hex1 = "";
String hex2 = "";
try {
HMACSHA1 mac = new HMACSHA1(keyBytes);
mac.Initialize();
byte[] inputBytes = new byte[s.Length];
for (var i = 0; i < s.Length; i++)
{
inputBytes.SetValue(Convert.ToByte(s[i]), i);//Encoding.UTF8.GetBytes(s);
}
byte[] digest = mac.TransformFinalBlock(inputBytes, 0, inputBytes.Length);
hex1 = BitConverter.ToString(digest).Replace("-", string.Empty);
} catch (Exception ex) {
Console.Error.WriteLine("HMACSHA1: Hash error: " + ex.Message);
}
try {
HMACMD5 mac = new HMACMD5(keyBytes);
mac.Initialize();
byte[] inputBytes = Encoding.UTF8.GetBytes(s);
byte[] digest = mac.TransformFinalBlock(inputBytes, 0, inputBytes.Length);
hex2 = BitConverter.ToString(digest).Replace("-", string.Empty);
} catch (Exception ex) {
Console.Error.WriteLine("HMACMD5: Hash error: " + ex.Message);
}
// convert hash key to integer
BigInteger h1 = BigInteger.Parse(hex1, NumberStyles.AllowHexSpecifier);
BigInteger h2 = BigInteger.Parse(hex2, NumberStyles.AllowHexSpecifier);
for (int i = 0; i < k; i++)
{
BigInteger bigi = new BigInteger(i);
//BigInteger res = h2.multiply(bigi).add(h1).mod(new BigInteger(this.bitSetSize + ""));
BigInteger res = (h2 * bigi + h1) % new BigInteger(this.bitSetSize);
int position = (int)res;
if (!bitset.get(position))
{
bitsSet++;
}
if (bitset.get(position))
{
if (cols[position] == 0)
{
cols[position] = 1;
}
else
{
cols[position] = cols[position] + 1;
}
}
bitset.set(position);
}
numberOfAddedElements++;
}