// Initialize the hash algorithm.
public override void Initialize()
{
if (alg != null)
{
alg.Initialize();
}
alg = null;
}
//
// public methods
//
public override void Initialize()
{
if (_impl != null)
{
_impl.Initialize();
}
else
{
InitializeState();
// Zeroize potentially sensitive information.
Array.Clear(_buffer, 0, _buffer.Length);
Array.Clear(_expandedBuffer, 0, _expandedBuffer.Length);
}
}
// ********************* Public Methods ************************
/// <include file='doc\HMACSHA1.uex' path='docs/doc[@for="HMACSHA1.Initialize"]/*' />
public override void Initialize()
{
_hash1.Initialize();
_hash2.Initialize();
_bHashing = false;
}
public void FIPS186_b (string testName, SHA1 hash, byte[] input, byte[] result)
{
byte[] output = hash.ComputeHash (input, 0, input.Length);
Assert.AreEqual (result, output, testName + ".b.1");
Assert.AreEqual (result, hash.Hash, testName + ".b.2");
// required or next operation will still return old hash
hash.Initialize ();
}
public void FIPS186_e (string testName, SHA1 hash, byte[] input, byte[] result)
{
byte[] copy = new byte [input.Length];
for (int i=0; i < input.Length - 1; i++)
hash.TransformBlock (input, i, 1, copy, i);
byte[] output = hash.TransformFinalBlock (input, input.Length - 1, 1);
// LAMESPEC or FIXME: TransformFinalBlock doesn't return HashValue !
// AssertEquals (testName + ".e.1", result, output);
Assert.AreEqual (result, hash.Hash, testName + ".e");
// required or next operation will still return old hash
hash.Initialize ();
}
public void FIPS186_d (string testName, SHA1 hash, byte[] input, byte[] result)
{
byte[] output = hash.TransformFinalBlock (input, 0, input.Length);
// LAMESPEC or FIXME: TransformFinalBlock doesn't return HashValue !
// AssertEquals( testName + ".d.1", result, output );
Assert.AreEqual (result, hash.Hash, testName + ".d");
// required or next operation will still return old hash
hash.Initialize ();
}
public void FIPS186_c (string testName, SHA1 hash, byte[] input, byte[] result)
{
MemoryStream ms = new MemoryStream (input);
byte[] output = hash.ComputeHash (ms);
Assert.AreEqual (result, output, testName + ".c.1");
Assert.AreEqual (result, hash.Hash, testName + ".c.2");
// required or next operation will still return old hash
hash.Initialize ();
}
public void FIPS186_a (string testName, SHA1 hash, byte[] input, byte[] result)
{
byte[] output = hash.ComputeHash (input);
AssertEquals (testName + ".a.1", result, output);
AssertEquals (testName + ".a.2", result, hash.Hash);
// required or next operation will still return old hash
hash.Initialize ();
}