public string Decrypt(string cipherText)
{
char[] cipherArray = cipherText.ToCharArray();
int i = 0;
string decryptedCipher = "";
progressBar2.Maximum = cipherArray.Length;
try
{
for (; i < cipherArray.Length; i++)
{
Application.DoEvents();
string cipher = "";
progressBar2.Value = i;
int j;
for (j = i; cipherArray[j] != '-'; j++)
{
cipher += cipherArray[j];
}
i = j;
ulong cipherValue = Convert.ToUInt64(cipher);
decryptedCipher += ((char)RSAlgorithm.BigMod(cipherValue, d, n)).ToString();
}
}
catch (Exception) { }
return(decryptedCipher);
}
public string Encrypt(string image, ProgressBar progressBar)
{
string hexImage = image;
char[] hexImageArray = hexImage.ToCharArray();
string cipher = "";
progressBar.Maximum = hexImageArray.Length;
for (int i = 0; i < hexImageArray.Length; i++)
{
Application.DoEvents();
progressBar.Value = i;
//lblPercentage.Text = ((double)i / (double)progressBar.Maximum * 100).ToString();
int percent = (int)(((double)progressBar.Value / (double)progressBar.Maximum) * 100);
///progressBar.Refresh();
progressBar.CreateGraphics().DrawString(percent.ToString() + "%",
new Font("Arial", (float)8.25, FontStyle.Regular),
Brushes.Black,
new PointF(progressBar.Width / 2 - 10, progressBar.Height / 2 - 7));
if (cipher == "")
{
cipher += RSAlgorithm.BigMod(hexImageArray[i], e, n);
}
else
{
cipher += "-" + RSAlgorithm.BigMod(hexImageArray[i], e, n);
}
}
return(cipher);
}
public string Encrypt(string image)
{
string hexImage = image;
char[] hexImageArray = hexImage.ToCharArray();
string cipher = "";
progressBar1.Maximum = hexImageArray.Length;
for (int i = 0; i < hexImageArray.Length; i++)
{
Application.DoEvents();
progressBar1.Value = i;
if (cipher == "")
{
cipher += RSAlgorithm.BigMod(hexImageArray[i], e, n);
}
else
{
cipher += "-" + RSAlgorithm.BigMod(hexImageArray[i], e, n);
}
}
return(cipher);
}
