public override string Decriptare(string cript_text)
{
key = 3;
StringBuilder solutie = new StringBuilder();
for (int i = 0; i < cript_text.Length; i++)
{
int val = (int)(cript_text[i]);
if (val != ' ')
{
val = val - key;
val = Exces.EliminaExces(val);
}
solutie.Append((char)(val));
}
return(solutie + "");
}
public override string Encriptare(string clear_text)
{
key = 3;
StringBuilder solutie = new StringBuilder();
clear_text = clear_text.ToUpper();
for (int i = 0; i < clear_text.Length; i++)
{
int val = (int)(clear_text[i]);
if (Char.IsLetter(clear_text[i]))
{
val = val + key;
val = Exces.EliminaExces(val);
}
solutie.Append((char)(val));
}
return(solutie.ToString());
}
public override string Decriptare(string cript_text)
{
string[] lines = System.IO.File.ReadAllLines(@"C:\Users\Dragos\source\repos\Criptografie1\Criptografie1\20k.txt");
string[] words = cript_text.Split(' ');
StringBuilder solutie = new StringBuilder();
key = 0;
for (int j = 1; j <= 26; j++)
{
key++;
Console.WriteLine(key);
for (int i = 0; i < words.Length; i++)
{
solutie.Clear();
for (int p = 0; p < words[i].Length; p++)
{
int valoare = (int)(words[i][p]);
valoare = valoare - 1;
valoare = Exces.EliminaExces(valoare);
solutie.Append((char)(valoare));
}
Console.WriteLine(solutie);
words[i] = solutie + "";
}
Console.WriteLine();
if (words.All(s => lines.Contains(s, StringComparer.OrdinalIgnoreCase)))
{
Console.WriteLine("Cheia este:: " + key);
StringBuilder decript = new StringBuilder();
foreach (var w in words)
{
decript.Append(w);
decript.Append(" ");
}
return(decript + "");
}
}
return("eroare nu avem solutie");
}
