public void FindKey(string chiperText)
{
chiperText = chiperText.ToUpper();
var repetitionPeriods = KasiskiMethod(chiperText);
if (repetitionPeriods.Count == 0)
{
Console.WriteLine("Невозможно найти период. Невозможно взломать ключ");
}
else
{
var nod = FindNOD(repetitionPeriods.ToArray());
var k = 1;
for (var m = nod; ; m = nod * k)
{
if (m > chiperText.Length / m)
{
break;
}
char[,] strings = new char[chiperText.Length / m + 1, m];
for (int i = 0; i < chiperText.Length; i++)
{
int ii = i / m;
int ij = i - (ii * m);
strings[ii, ij] = chiperText[i];
}
var paswords = new List <string>();
paswords.Add("");
for (int i = 0; i < m; i++)
{
Dictionary <char, int> dict = new Dictionary <char, int>();
for (int j = 0; j < (chiperText.Length / m) + 1; j++)
{
if (dict.ContainsKey(strings[j, i]))
{
dict[strings[j, i]]++;
}
else
{
dict.Add(strings[j, i], 1);
}
}
var sortict = dict.OrderByDescending(x => x.Value)
.ToDictionary(x => x.Key, x => x.Value);
var maxValue = sortict.Values.Max();
var positionCandidat = new List <char>();
char sy = Languege.z == 33 ? 'О' : 'E';
foreach (var kvp in sortict)
{
if (kvp.Value < maxValue)
{
break;
}
else
{
positionCandidat.Add(kvp.Key);
}
}
if (positionCandidat.Count > 1)
{
var bufList = new List <string>(paswords);
for (var copy = 0; copy < positionCandidat.Count - 1; copy++)
{
paswords.AddRange(bufList);
}
var transition = paswords.Count / positionCandidat.Count;
var candidatElement = 0;
for (var pos = 0; pos < paswords.Count; pos++)
{
if (pos != 0 && pos % transition == 0)
{
candidatElement++;
}
int res = Languege.dictionary[positionCandidat[candidatElement]] -
Languege.dictionary[sy];
paswords[pos] += FindValue.Findvalue(res + 1);
}
}
else
{
int res = Languege.dictionary[positionCandidat[0]] -
Languege.dictionary[sy];
for (var pos = 0; pos < paswords.Count; pos++)
{
paswords[pos] += FindValue.Findvalue(res);
}
}
}
foreach (var password in paswords)
{
Add(password);
}
k += 1;
}
}
}
public void FindKey(string cText, string oText)
{
var numberLitera = Converter.ConvertWordToCode(cText);
for (var del = 2; del <= cText.Length; del++)
{
if (cText.Length % del != 0)
{
continue;
}
else
{
var possiblePermutations = SetTransposition(new int[del], 0, del);
foreach (var perm in possiblePermutations)
{
var array = new double[cText.Length / del, del];
var pos = 0;
for (var x = 0; x < del; x++)
{
for (var y = 0; y < cText.Length / del; y++)
{
array[y, x] = numberLitera[pos];
pos++;
}
}
var matrixArray = Matrix <double> .Build.DenseOfArray(array);
var ansverMatrix = DenseMatrix.Create(cText.Length / del, del, 0);
pos = 0;
foreach (var p in perm)
{
var column = matrixArray.Column(p);
ansverMatrix.SetColumn(pos, column.ToArray());
pos++;
}
string ans = "";
for (var y = 0; y < cText.Length / del; y++)
{
for (var x = 0; x < del; x++)
{
ans += Convert.ToString(FindValue.Findvalue(Convert.ToInt32(ansverMatrix[y, x]) % Languege.z));
}
}
if (ans.Contains(oText.ToUpper()))
{
Key.Add(perm);
}
#region
//var block = 0;
//var permIndex = 0;
//var decryption = new char[cText.Length];
//for (var w = 0; w < cText.Length; w++)
//{
// decryption[w] = cText[perm[permIndex] + block];
// permIndex++;
// if ((w + 1) % del == 0 && w != 0)
// block+=del;
// if (permIndex == perm.Length)
// permIndex = 0;
//}
////TODO: Сделать из этого что-то нормальное
//var stringDecryption = Converter.ConvertArrayToString(decryption);
//if (stringDecryption.Contains(oText))
// Key.Add(perm);
//if (Languege.dictionary.ContainsKey('А')) //Русский язык
//{
// var dictionary = WordList.CreateFromFiles(@"Russian.dic", @"Russian.aff");
// var suggestions = dictionary.Suggest(stringDecryption);
// foreach (var s in suggestions)
// Console.WriteLine(s);
//}
//else
//{
//}
#endregion
}
}
}
}