The Source Code - Multilevel Security for Relational Databases - page 197

return Label.Substring(0, 1);
}
public static string GetBCSecondarylevel
(int NumericLabel)
{
string Label = GetBCLabel(NumericLabel);
ret urn Label.Remove(Label.IndexOf(GetBCprimar
ylevel(NumericLabel)), 1);
}
public static string GetBCUserbelief
(string Label)
{
int NumericLabel = GetBCLabelNumeric(Label);
int belief = 0;
string retvalue = “”;
int UserLabelID = globals.UserLabelID;
string UserLabel = globals.UserLabel;
for (int i = 0; i < UserLabelID; i++)
{
belief = NumericLabel% 4;
NumericLabel = NumericLabel/4;
}
if (belief = = 1)
{
retvalue = “-” + UserLabel;
}
else if (belief = = 2)
{
retvalue = UserLabel;
}
return retvalue;
}
public static int UnverifyBCUserbelief
(int NumericLabel)
{
string Label = GetBCLabel(NumericLabel);
string UserLabel = globals.UserLabel;
Label = Label.Remove(Label.
IndexOf(UserLabel), 1); ;
return GetBCLabelNumeric(Label);
}
public static int VerifyBCUserbelief
(int NumericLabel,bool belief)
{
string Label = GetBCLabel(NumericLabel);