private void Clear_Click(object sender, EventArgs e)
{
HashText.Clear();
PlainText.Clear();
CipherText.Clear();
PlainText.Focus();
this.Encryption.Enabled = true;
}
private void Encryption_Click(object sender, EventArgs e)
{
this.CipherText.Clear();
this.HashText.Clear();
this.Encryption.Enabled = false;
if (!String.IsNullOrEmpty(PlainText.Text) && !String.IsNullOrWhiteSpace(PlainText.Text))
{
this.Decrypt.Enabled = true;
UnicodeEncoding code = new UnicodeEncoding();
byte[] datas = code.GetBytes(PlainText.Text);
using (RSACryptoServiceProvider rsa = new RSACryptoServiceProvider(2048))
{
byte[] encry = RSA.RSAEncrypt(datas, rsa.ExportParameters(false), false);
for (int i = 0; i < encry.Length; i++)
{
CipherText.Text += encry[i].ToString("X2");
}
CipherText.Text += rsa.KeySize.ToString();
enc = RSA.RSADecrypt(encry, rsa.ExportParameters(true), false);
string sha = HashSHA256.SHA256Hashing(PlainText.Text);
HashText.Text += sha;
}
}
else
{
MessageBox.Show("Caixa de texto vazia", "Digite algo para criptografar!",
MessageBoxButtons.OK, MessageBoxIcon.Error);
this.Encryption.Enabled = true;
this.Decrypt.Enabled = false;
PlainText.Focus();
}
}
private void aesjia_Load(object sender, EventArgs e)
{
PlainText.Focus();
}
