public HMACSHA1(byte[] rgbKey)
{
this.hmac = new HMACAlgorithm("SHA1");
this.HashSizeValue = 160;
this.Key = rgbKey;
this.m_disposed = false;
}
public void Initialize()
{
this.hash = (byte[])null;
this.block.Initialize();
byte[] rgb = HMACAlgorithm.KeySetup(this.key, (byte)54);
this.algo.Initialize();
this.block.Core(rgb);
Array.Clear((Array)rgb, 0, rgb.Length);
}
public byte[] Final()
{
this.block.Final();
byte[] hash = this.algo.Hash;
byte[] numArray = HMACAlgorithm.KeySetup(this.key, (byte)92);
this.algo.Initialize();
this.algo.TransformBlock(numArray, 0, numArray.Length, numArray, 0);
this.algo.TransformFinalBlock(hash, 0, hash.Length);
this.hash = this.algo.Hash;
Array.Clear((Array)numArray, 0, numArray.Length);
Array.Clear((Array)hash, 0, hash.Length);
return(this.hash);
}