public static DigraphTable Random(int year, int month)
{
DigraphTable result = new DigraphTable();
for (int y = 0; y < Constants.ALPHABET.Length; y++)
{
for (int x = 0; x < Constants.ALPHABET.Length; x++)
{
Digraph newDigraph = new Digraph
{
PlainTextX = Constants.ALPHABET[x],
PlainTextY = Constants.ALPHABET[y]
};
result.cell_list.Add(newDigraph);
result.cells[x, y] = newDigraph;
}
}
List <Tuple <Digraph, double> > values = new List <Tuple <Digraph, double> >();
foreach (var item in result.cell_list)
{
values.Add(new Tuple <Digraph, double>(item, RandomUtil._rand.NextDouble()));
}
values.Sort((v1, v2) => v1.Item2.CompareTo(v2.Item2));
while (values.Any())
{
var f = values.First();
var l = values.Last();
f.Item1.CipherTextX = l.Item1.PlainTextX;
f.Item1.CipherTextY = l.Item1.PlainTextY;
l.Item1.CipherTextX = f.Item1.PlainTextX;
l.Item1.CipherTextY = f.Item1.PlainTextY;
values.Remove(f);
values.Remove(l);
}
return(result);
}
public static string GenerateDigraphTable(int year, int month)
{
return(DigraphTable.Random(year, month).ToString());
}
