/C#/Encrypt with public key and decrypt with private key c#

Encrypt with public key and decrypt with private key c#

private static string _privateKey;
private static string _publicKey;
private static UnicodeEncoding _encoder = new UnicodeEncoding();

private static void RSA()
{
  var rsa = new RSACryptoServiceProvider();
  _privateKey = rsa.ToXmlString(true);
  _publicKey = rsa.ToXmlString(false);

  var text = "Test1";
  Console.WriteLine("RSA // Text to encrypt: " + text);
  var enc = Encrypt(text);
  Console.WriteLine("RSA // Encrypted Text: " + enc);
  var dec = Decrypt(enc);
  Console.WriteLine("RSA // Decrypted Text: " + dec);
}

public static string Decrypt(string data)
{
  var rsa = new RSACryptoServiceProvider();
  var dataArray = data.Split(new char[] { ',' });
  byte[] dataByte = new byte[dataArray.Length];
  for (int i = 0; i < dataArray.Length; i++)
  {
    dataByte[i] = Convert.ToByte(dataArray[i]);
  }

  rsa.FromXmlString(_privateKey);
  var decryptedByte = rsa.Decrypt(dataByte, false);
  return _encoder.GetString(decryptedByte);
}

public static string Encrypt(string data)
{
  var rsa = new RSACryptoServiceProvider();
  rsa.FromXmlString(_publicKey);
  var dataToEncrypt = _encoder.GetBytes(data);
  var encryptedByteArray = rsa.Encrypt(dataToEncrypt, false).ToArray();
  var length = encryptedByteArray.Count();
  var item = 0;
  var sb = new StringBuilder();
  foreach (var x in encryptedByteArray)
  {
    item++;
    sb.Append(x);

    if (item < length)
      sb.Append(",");
  }

  return sb.ToString();
}

Source: stackoverflow.com

Similar codes

0 vote225 views1 answer
Username and password into base64 encoding c#
C#
0 vote171 views1 answer
Unity Rigidbody how to set zero momentum
C#
0 vote182 views1 answer
Integer required asp.net core
C#
3 votes191 views1 answer
Character Controller unity isGrounded is false
C#
0 vote161 views1 answer
Export2excel with logo and header and many table on one click stackoverflow
C#
0 vote183 views1 answer
How to solve error in ExecuteNonQuery() in asp.net
C#
3 votes179 views1 answer
Check ping c sharp
C#
2 votes244 views2 answers
Unity rotate around axis
C#Unity
0 vote180 views1 answer
Xamarin Forms iOS Picker done
C#
-1 vote231 views1 answer
Access audio source from gameobject unity
C#Unity