/// <exception cref="SharpCifs.Smb.SmbException"></exception>
public SigningDigest(SmbTransport transport, NtlmPasswordAuthentication auth)
{
try
{
_digest = MessageDigest.GetInstance("MD5");
}
catch (NoSuchAlgorithmException ex)
{
if (Log.Level > 0)
{
Runtime.PrintStackTrace(ex, Log);
}
throw new SmbException("MD5", ex);
}
try
{
switch (SmbConstants.LmCompatibility)
{
case 0:
case 1:
case 2:
{
_macSigningKey = new byte[40];
auth.GetUserSessionKey(transport.Server.EncryptionKey, _macSigningKey, 0);
Array.Copy(auth.GetUnicodeHash(transport.Server.EncryptionKey), 0, _macSigningKey
, 16, 24);
break;
}
case 3:
case 4:
case 5:
{
_macSigningKey = new byte[16];
auth.GetUserSessionKey(transport.Server.EncryptionKey, _macSigningKey, 0);
break;
}
default:
{
_macSigningKey = new byte[40];
auth.GetUserSessionKey(transport.Server.EncryptionKey, _macSigningKey, 0);
Array.Copy(auth.GetUnicodeHash(transport.Server.EncryptionKey), 0, _macSigningKey
, 16, 24);
break;
}
}
}
catch (Exception ex)
{
throw new SmbException(string.Empty, ex);
}
if (Log.Level >= 5)
{
Log.WriteLine("LM_COMPATIBILITY=" + SmbConstants.LmCompatibility);
Hexdump.ToHexdump(Log, _macSigningKey, 0, _macSigningKey.Length);
}
}
/// <summary>Creates an HMACT64 instance which uses the given secret key material.</summary>
/// <remarks>Creates an HMACT64 instance which uses the given secret key material.</remarks>
/// <param name="key">The key material to use in hashing.</param>
public Hmact64(byte[] key)
{
int length = Math.Min(key.Length, BlockLength);
for (int i = 0; i < length; i++)
{
_ipad[i] = unchecked((byte)(key[i] ^ Ipad));
_opad[i] = unchecked((byte)(key[i] ^ Opad));
}
for (int i1 = length; i1 < BlockLength; i1++)
{
_ipad[i1] = Ipad;
_opad[i1] = Opad;
}
try
{
_md5 = GetInstance("MD5");
}
catch (Exception ex)
{
throw new InvalidOperationException(ex.Message);
}
EngineReset();
}
/// <exception cref="SharpCifs.Smb.SmbException"></exception>
public SigningDigest(byte[] macSigningKey, bool bypass)
{
try
{
_digest = MessageDigest.GetInstance("MD5");
}
catch (NoSuchAlgorithmException ex)
{
if (Log.Level > 0)
{
Runtime.PrintStackTrace(ex, Log);
}
throw new SmbException("MD5", ex);
}
this._macSigningKey = macSigningKey;
this._bypass = bypass;
_updates = 0;
_signSequence = 0;
if (Log.Level >= 5)
{
Log.WriteLine("macSigningKey:");
Hexdump.ToHexdump(Log, macSigningKey, 0, macSigningKey.Length);
}
}