Cypher

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Key.cs (2684B)

      1 using System;
      2 using System.Collections.Generic;
      3 using System.Linq;
      4 using System.Text;
      5 using System.Threading.Tasks;
      6 
      7 namespace Cypher
      8 {
      9     internal class Key
     10     {
     11         public void createKey()
     12         {
     13             int count;
     14             double[] ints = new double[1000];
     15             for(int i = 0; i < 1000; i++)
     16             {
     17                 ints[i] = i;
     18             }
     19             double[] order = new double[1000];
     20             order = GeneratKey();
     21 
     22             Console.WriteLine("Now genarating key...");
     23             //相関係数が0.5より小さくなるまで鍵ファイルを生成し続ける。
     24             count = 0;
     25             while (ComputeCoeff(order.ToArray(), ints.ToArray()) > 0.5)
     26             {
     27                 order = GeneratKey();
     28                 count++;
     29                 Console.WriteLine(count);
     30             }
     31 
     32             Question question = new Question();
     33             string whereKeyFile = question.Questions("Where will you want to create the keyFile?", false);
     34 
     35 
     36             //keyFileに書き出し
     37             StreamWriter streamWriter = new StreamWriter(whereKeyFile);
     38             for (count = 0; count < order.Length; count++)
     39             {
     40                 streamWriter.WriteLine(order[count]);
     41             }
     42             streamWriter.Close();
     43         }
     44 
     45 
     46         public double[] GeneratKey()
     47         {
     48             //順序ファイルの生成
     49             int random;
     50             int count = 1;
     51             double[] order = new double[1000];
     52             //1000個数字が埋められるまで繰り返す。
     53             while (count < 1000)
     54             {
     55                 var randomer = new Random();
     56                 random = randomer.Next(minValue: 0, maxValue: 1000);
     57 
     58                 //今までにない数かどうかを評価
     59                 if (Array.IndexOf(order, random) < 0)
     60                 {
     61                     //生成した変数を"order"に代入
     62                     order[count] = random;
     63                     count++;
     64                 }
     65             }
     66             return order;
     67         }
     68         public double ComputeCoeff(double[] values1, double[] values2)
     69         {
     70             if (values1.Length != values2.Length)
     71                 throw new ArgumentException("values must be the same length");
     72 
     73             var avg1 = values1.Average();
     74             var avg2 = values2.Average();
     75 
     76             var sum1 = values1.Zip(values2, (x1, y1) => (x1 - avg1) * (y1 - avg2)).Sum();
     77 
     78             var sumSqr1 = values1.Sum(x => Math.Pow((x - avg1), 2.0));
     79             var sumSqr2 = values2.Sum(y => Math.Pow((y - avg2), 2.0));
     80 
     81             var result = sum1 / Math.Sqrt(sumSqr1 * sumSqr2);
     82 
     83             return result;
     84         }
     85     }
     86 }