public static bool LMv1ResponseTest()
{
byte[] challenge = new byte[] { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef };
byte[] response = NTAuthentication.ComputeLMv1Response(challenge, "Password");
byte[] expected = { 0x98, 0xde, 0xf7, 0xb8, 0x7f, 0x88, 0xaa, 0x5d, 0xaf, 0xe2, 0xdf, 0x77, 0x96, 0x88, 0xa1, 0x72, 0xde, 0xf1, 0x1c, 0x7d, 0x5c, 0xcd, 0xef, 0x13 };
bool success = ByteUtils.AreByteArraysEqual(response, expected);
return(success);
}
public bool IsPasswordEmpty(byte[] lmResponse, byte[] ntlmResponse)
{
// Special case for anonymous authentication
// Windows NT4 SP6 will send 1 null byte OEMPassword and 0 bytes UnicodePassword for anonymous authentication
if (lmResponse.Length == 0 || ByteUtils.AreByteArraysEqual(lmResponse, new byte[] { 0x00 }) || ntlmResponse.Length == 0)
{
return(true);
}
byte[] emptyPasswordLMv1Response = NTAuthentication.ComputeLMv1Response(m_serverChallenge, String.Empty);
if (ByteUtils.AreByteArraysEqual(emptyPasswordLMv1Response, lmResponse))
{
return(true);
}
byte[] emptyPasswordNTLMv1Response = NTAuthentication.ComputeNTLMv1Response(m_serverChallenge, String.Empty);
if (ByteUtils.AreByteArraysEqual(emptyPasswordNTLMv1Response, ntlmResponse))
{
return(true);
}
return(false);
}
/// <summary>
/// LM v1 / NTLM v1
/// </summary>
public User AuthenticateV1(string accountNameToAuth, byte[] serverChallenge, byte[] lmResponse, byte[] ntlmResponse)
{
for (int index = 0; index < this.Count; index++)
{
string accountName = this[index].AccountName;
string password = this[index].Password;
if (String.Equals(accountName, accountNameToAuth, StringComparison.InvariantCultureIgnoreCase))
{
byte[] expectedLMResponse = NTAuthentication.ComputeLMv1Response(serverChallenge, password);
if (ByteUtils.AreByteArraysEqual(expectedLMResponse, lmResponse))
{
return(this[index]);
}
byte[] expectedNTLMResponse = NTAuthentication.ComputeNTLMv1Response(serverChallenge, password);
if (ByteUtils.AreByteArraysEqual(expectedNTLMResponse, ntlmResponse))
{
return(this[index]);
}
}
}
return(null);
}