public static string ComputeRipeMd160Hash(this string valueForHash)
{
var ripeMd160 = new RipeMD160Digest();
var hash = new byte[ripeMd160.GetDigestSize()];
foreach (var @byte in Encoding.UTF8.GetBytes(valueForHash))
{
ripeMd160.Update(@byte);
}
ripeMd160.DoFinal(hash, 0);
return(Hex.ToHexString(hash));
}
public ITestResult Perform()
{
IDigest digest = new RipeMD160Digest();
byte[] resBuf = new byte[digest.GetDigestSize()];
for (int i = 0; i < messages.Length; i++)
{
byte[] m = Encoding.ASCII.GetBytes(messages[i]);
digest.BlockUpdate(m, 0, m.Length);
digest.DoFinal(resBuf, 0);
if (!Arrays.AreEqual(resBuf, Hex.Decode(digests[i])))
{
return(new SimpleTestResult(false, Name + ": Vector " + i + " failed"));
}
}
//
// test 2
//
byte[] mm = Encoding.ASCII.GetBytes(messages[messages.Length - 1]);
digest.BlockUpdate(mm, 0, mm.Length / 2);
// clone the IDigest
IDigest d = new RipeMD160Digest((RipeMD160Digest)digest);
digest.BlockUpdate(mm, mm.Length / 2, mm.Length - mm.Length / 2);
digest.DoFinal(resBuf, 0);
if (!Arrays.AreEqual(resBuf, Hex.Decode(digests[digests.Length - 1])))
{
return(new SimpleTestResult(false,
"RipeMD160 failing clone test"
+ SimpleTest.NewLine
+ " expected: " + digests[digests.Length - 1]
+ SimpleTest.NewLine
+ " got : " + Hex.ToHexString(resBuf)));
}
d.BlockUpdate(mm, mm.Length / 2, mm.Length - mm.Length / 2);
d.DoFinal(resBuf, 0);
if (!Arrays.AreEqual(resBuf, Hex.Decode(digests[digests.Length - 1])))
{
return(new SimpleTestResult(false,
"RipeMD160 failing clone test - part 2"
+ SimpleTest.NewLine
+ " expected: " + digests[digests.Length - 1]
+ SimpleTest.NewLine
+ " got : " + Hex.ToHexString(resBuf)));
}
for (int i = 0; i < 1000000; i++)
{
digest.Update((byte)'a');
}
digest.DoFinal(resBuf, 0);
if (!Arrays.AreEqual(resBuf, Hex.Decode(MillionADigest)))
{
return(new SimpleTestResult(false, Name + ": Million a's failed"));
}
return(new SimpleTestResult(true, Name + ": Okay"));
}
