/// <summary>
/// Returns the computed <see cref="T:TigerHash" /> hash value after all data has been written to the object.
/// </summary>
/// <returns>The computed hash code.</returns>
protected override byte[] HashFinal()
{
int bufferOffset = this.bufferPosition;
byte[] buffer = this.internalDataBuffer;
buffer[bufferOffset] = 1;
bufferOffset += 1;
if ((BLOCKSIZE - 8) <= bufferOffset)
{
Array.Clear(buffer, bufferOffset, BLOCKSIZE - bufferOffset);
this.ProcessBlock();
bufferOffset = 0;
}
Array.Clear(buffer, bufferOffset, BLOCKSIZE - bufferOffset - 8);
TigerHash.LongToBytes(((ulong)this.totalLength) << 3, buffer, BLOCKSIZE - 8);
this.ProcessBlock();
byte[] retval = new byte[24];
TigerHash.LongToBytes(this.a, retval, 0);
TigerHash.LongToBytes(this.b, retval, 8);
TigerHash.LongToBytes(this.c, retval, 16);
return(retval);
}
private void Compress()
{
ulong aa, bb, cc;
ulong[] tmpBlock;
aa = this.a;
bb = this.b;
cc = this.c;
tmpBlock = this.block;
this.RoundABC(tmpBlock[0], 5);
this.RoundBCA(tmpBlock[1], 5);
this.RoundCAB(tmpBlock[2], 5);
this.RoundABC(tmpBlock[3], 5);
this.RoundBCA(tmpBlock[4], 5);
this.RoundCAB(tmpBlock[5], 5);
this.RoundABC(tmpBlock[6], 5);
this.RoundBCA(tmpBlock[7], 5);
TigerHash.Schedule(tmpBlock);
this.RoundCAB(tmpBlock[0], 7);
this.RoundABC(tmpBlock[1], 7);
this.RoundBCA(tmpBlock[2], 7);
this.RoundCAB(tmpBlock[3], 7);
this.RoundABC(tmpBlock[4], 7);
this.RoundBCA(tmpBlock[5], 7);
this.RoundCAB(tmpBlock[6], 7);
this.RoundABC(tmpBlock[7], 7);
TigerHash.Schedule(tmpBlock);
this.RoundBCA(tmpBlock[0], 9);
this.RoundCAB(tmpBlock[1], 9);
this.RoundABC(tmpBlock[2], 9);
this.RoundBCA(tmpBlock[3], 9);
this.RoundCAB(tmpBlock[4], 9);
this.RoundABC(tmpBlock[5], 9);
this.RoundBCA(tmpBlock[6], 9);
this.RoundCAB(tmpBlock[7], 9);
this.a = this.a ^ aa;
this.b -= bb;
this.c += cc;
}
private void btnDefaultNodeLocatorDefaultHasing_Click(object sender, EventArgs e)
{
Initialise();
DefaultNodeLocatorDefaultHasingIndex();
Debug.WriteLine("Finished building index");
foreach (IPEndPoint key in _nodes)
{
if (!_defaultLocatorKeyDistirbution.ContainsKey(key))
{
_defaultLocatorKeyDistirbution.Add(key, new KeyCount());
}
else
{
_defaultLocatorKeyDistirbution[key] = new KeyCount();
}
}
Debug.WriteLine("Finished count reset");
Debug.WriteLine("Starting test for 10000 random rawproductId key distirbution");
for (int i = 0; i < 10000; i++)
{
string key = CreateKey(Guid.NewGuid());
//Default Key
IPEndPoint defaultNodeEndPoint = FindNodeDefault(key);
KeyCount currentKeyCount = _defaultLocatorKeyDistirbution[defaultNodeEndPoint];
currentKeyCount.Default = currentKeyCount.Default + 1;
_defaultLocatorKeyDistirbution[defaultNodeEndPoint] = currentKeyCount;
//base64key
string base64Key = Convert.ToBase64String(Encoding.UTF8.GetBytes(key), Base64FormattingOptions.None);
IPEndPoint base64EndPoint = FindNodeDefault(base64Key);
KeyCount base64KeyCount = _defaultLocatorKeyDistirbution[base64EndPoint];
base64KeyCount.Base64 = base64KeyCount.Base64 + 1;
_defaultLocatorKeyDistirbution[base64EndPoint] = base64KeyCount;
//sha1
SHA1Managed sh = new SHA1Managed();
byte[] data = sh.ComputeHash(Encoding.Unicode.GetBytes(key));
IPEndPoint sha1EndPoint = FindNodeDefault(Convert.ToBase64String(data, Base64FormattingOptions.None));
KeyCount sha1KeyCount = _defaultLocatorKeyDistirbution[sha1EndPoint];
sha1KeyCount.Sha1 = sha1KeyCount.Sha1 + 1;
_defaultLocatorKeyDistirbution[sha1EndPoint] = sha1KeyCount;
//Tiger Hash
TigerHash th = new TigerHash();
byte[] tigerData = th.ComputeHash(Encoding.Unicode.GetBytes(key));
IPEndPoint tigerEndPoint = FindNodeDefault(Convert.ToBase64String(tigerData, Base64FormattingOptions.None));
KeyCount tigerHashKeyCount = _defaultLocatorKeyDistirbution[tigerEndPoint];
tigerHashKeyCount.TigerHash = tigerHashKeyCount.TigerHash + 1;
_defaultLocatorKeyDistirbution[tigerEndPoint] = tigerHashKeyCount;
}
Debug.WriteLine("Finished 10000 items test");
StringBuilder sb = new StringBuilder();
sb.AppendLine("***Default Node Locator Tests****");
sb.AppendLine(GetDefaultKeyResultString(_defaultLocatorKeyDistirbution));
sb.AppendLine("*******************");
sb.AppendLine(GetBase64ResultString(_defaultLocatorKeyDistirbution));
sb.AppendLine("*******************");
sb.AppendLine(GetSha1ResultString(_defaultLocatorKeyDistirbution));
sb.AppendLine("*******************");
sb.AppendLine(GetTigerHasResultString(_defaultLocatorKeyDistirbution));
txtResults.Clear();
txtResults.Text = sb.ToString();
Debug.WriteLine("DONE");
}