Kashub's Code Barn - "aaaa"

USING System;
USING System.Collections.Generic;
USING System.ComponentModel;
USING System.Data;
USING System.Drawing;
USING System.Linq;
USING System.Text;
USING System.Threading.Tasks;
USING System.Windows.Forms;
USING System.Security.Cryptography;
 
namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
 
        }
 
            private void btnPublic_key_Click(object sender, EventArgs e)
        {
            var cryptoServiceProvider = NEW RSACryptoServiceProvider(2048); //2048 - Długość klucza
            var publicKey = cryptoServiceProvider.ExportParameters(FALSE); //Generowanie klucza publiczny
            string publicKeyString = GetKeyString(publicKey);
            lblPublic_Key.Text = publicKeyString;
 
        }
 
 
        private void btnPrivate_key_Click(object sender, EventArgs e)
        {
            var cryptoServiceProvider = NEW RSACryptoServiceProvider(2048); //2048 - Długość klucza
            var privateKey = cryptoServiceProvider.ExportParameters(TRUE); //Generowanie klucza prywatnego
            string privateKeyString = GetKeyString(privateKey);
            lblPrivate_Key.Text = privateKeyString;
        }
 
        public static string GetKeyString(RSAParameters publicKey)
        {
 
            var stringWriter = NEW System.IO.StringWriter();
            var xmlSerializer = NEW System.Xml.Serialization.XmlSerializer(typeof(RSAParameters));
            xmlSerializer.Serialize(stringWriter, publicKey);
            RETURN stringWriter.ToString();
        }
 
        private void btnEncryptiontext_Click(object sender, EventArgs e)
        {
            string tekst = textBox_text.Text;
            string encryptedText = Encrypt(tekst, publicKeyString); //Szyfrowanie za pomocą klucza publicznego
            lbl_Encryptiontxt.Text = encryptedText;
        }
 
        public static string Encrypt(string tekst, string publicKeyString)
        {
            var bytesToEncrypt = Encoding.UTF8.GetBytes(tekst);
 
            USING (var rsa = NEW RSACryptoServiceProvider(2048))
            {
                try
                {
                    rsa.FromXmlString(publicKeyString.ToString());
                    var encryptedData = rsa.Encrypt(bytesToEncrypt, TRUE);
                    var base64Encrypted = CONVERT.ToBase64String(encryptedData);
                    RETURN base64Encrypted;
                }
                finally
                {
                    rsa.PersistKeyInCsp = FALSE;
                }
            }
        }
    }
}
 

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