Example #1
0
        private void button4_Click(object sender, EventArgs e)
        {
            Random rnd = new Random();

            MyRSA.prim1 = MyRSA.generator.GetSequence().ElementAt(rnd.Next(1000, 10000));
            MyRSA.prim2 = MyRSA.generator.GetSequence().ElementAt(rnd.Next(1000, 10000));
            int temp_fi = 0;

            temp_fi = Convert.ToInt32(MyRSA.fi / 2);  //se poate afla eroare pe linia acesta dar numai daca prim1 sau prim2 iese prea mare la generare rnd
            int  rndint  = rnd.Next(1, temp_fi);
            long element = rndint * 2;


            MyRSA mr = new MyRSA();

            mr.GCDRecursive(element, MyRSA.fi);

            EuclidExtended         ee     = new EuclidExtended(1, MyRSA.fi);
            EuclidExtendedSolution result = ee.calculate();
            long d = Convert.ToInt64(result.D);

            MessageBox.Show("the public key: " + mr.generatePublicKey(MyRSA.n, element).ToString());
            MessageBox.Show("the private key: " + mr.generatePrivateKey(d).ToString());

            listBox1.Items.Add(" ");
            listBox1.Items.Add("Textul criptat:");
            for (int i = 0; i < count; i++)
            {
                mr.Encrypt(elements[i], d);
                long c1 = long.Parse(mr.Encrypt(elements[i], d));
            }
        }
Example #2
0
        private void button5_Click(object sender, EventArgs e)
        {
            Random rnd = new Random();

            MyRSA.prim1 = MyRSA.generator.GetSequence().ElementAt(rnd.Next(1000, 10000));
            MyRSA.prim2 = MyRSA.generator.GetSequence().ElementAt(rnd.Next(1000, 10000));
            int temp_fi = 0;

            temp_fi = Convert.ToInt32(MyRSA.fi / 2);
            int  rndint  = rnd.Next(1, temp_fi);
            long element = rndint * 2;


            MyRSA mr = new MyRSA();

            mr.GCDRecursive(element, MyRSA.fi);

            EuclidExtended         ee     = new EuclidExtended(1, MyRSA.fi);
            EuclidExtendedSolution result = ee.calculate();
            long d = Convert.ToInt64(result.D);

            listBox1.Items.Add(" ");
            listBox1.Items.Add("Textul decriptat:");
            for (int i = 0; i < count; i++)
            {
                long c1 = long.Parse(mr.Encrypt(elements[i], d));
                mr.Decrypt(elements[i], c1, d);
            }
        }
Example #3
0
        public long generatePrivateKey(long d)
        {
            EuclidExtended         ee     = new EuclidExtended(1, fi);
            EuclidExtendedSolution result = ee.calculate();

            d = Convert.ToInt64(result.D);
            return(d);
        }