private static void EncodeFile()
{
Console.Write("Enter first prime number: ");
var p = new MyBigInteger(Console.ReadLine());
Console.Write("Enter second prime number: ");
var q = new MyBigInteger(Console.ReadLine());
var module = p * q;
Console.WriteLine($"Your module: {module}");
var phi = (p - MyBigInteger.One) * (q - MyBigInteger.One);
var publicExponent = AlgorithmRSA.CalculatePublicExponent(phi);
var secretExponent = AlgorithmRSA.CalculateSecretExponent(publicExponent, phi);
Console.WriteLine($"Your secret exponent: {secretExponent}");
var message =
File.ReadAllBytes(@"C:\Users\diyll\Laboratory\ConsoleApp1\ConsoleApp1\FileToEncode.txt")
.Select(x => (int)x);
var encoded = AlgorithmRSA.Encode(message, publicExponent, module);
Console.WriteLine("Your crypted data:");
foreach (var integer in encoded)
{
Console.WriteLine(integer.ToString());
}
}
private static void Encode()
{
Console.Write("Enter first prime number: ");
var p = new MyBigInteger(Console.ReadLine());
Console.Write("Enter second prime number: ");
var q = new MyBigInteger(Console.ReadLine());
var module = p * q;
Console.WriteLine($"Your module: {module}");
var phi = (p - MyBigInteger.One) * (q - MyBigInteger.One);
var publicExponent = AlgorithmRSA.CalculatePublicExponent(phi);
var secretExponent = AlgorithmRSA.CalculateSecretExponent(publicExponent, phi);
Console.WriteLine($"Your secret exponent: {secretExponent}");
Console.WriteLine("Enter your message:");
var message = Encoding.ASCII
.GetBytes(Console.ReadLine() ?? string.Empty)
.Select(x => (int)x)
.ToArray();
var encode = AlgorithmRSA.Encode(message, publicExponent, module);
Console.WriteLine("Your crypted data:");
foreach (var integer in encode)
{
Console.WriteLine(integer);
}
}
public void CorrectDecode(string value, string number1, string number2)
{
var p = new MyBigInteger(number1);
var q = new MyBigInteger(number2);
var module = p * q;
var phi = (p - MyBigInteger.One) * (q - MyBigInteger.One);
var exponent = AlgorithmRSA.CalculatePublicExponent(phi);
var secretExponent = AlgorithmRSA.CalculateSecretExponent(exponent, phi);
var chars = value.ToCharArray().Select(x => (int)(byte)x).ToArray();
var encoded = AlgorithmRSA.Encode(chars,
exponent, module);
var result = AlgorithmRSA.Decode(encoded, secretExponent, module);
CollectionAssert.AreEqual(result, chars);
}
private static void Decode()
{
Console.WriteLine("Enter your module: ");
var module = new MyBigInteger(Console.ReadLine());
Console.WriteLine("Enter your secret exponent: ");
var secretExponent = new MyBigInteger(Console.ReadLine());
Console.WriteLine("Enter your crypted data per line: ");
var crypted = new List <MyBigInteger>();
var line = Console.ReadLine();
while (!string.IsNullOrEmpty(line))
{
crypted.Add(new MyBigInteger(line));
line = Console.ReadLine();
}
var chars = AlgorithmRSA.Decode(crypted, secretExponent, module);
var result = Encoding.ASCII.GetString(chars.Select(x => (byte)x).ToArray());
Console.WriteLine($"Your message was {result}");
}
