private void button_sign_Click(object sender, EventArgs e)
{
try
{
string hash_code = this.combo_box_hash.SelectedValue.ToString();
string message = this.rich_txt_plain.Text.ToString().Trim();
string signed_text = RSA_1.SignData(message, rsa_paras, hash_code);
this.rich_txt_sign.Text = signed_text;
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "Thông báo");
}
}
private void button_verify_Click(object sender, EventArgs e)
{
try
{
string hash_code = this.combo_box_hash.SelectedValue.ToString();
string original_message = this.rich_txt_plain.Text.ToString().Trim();
string signed_message = this.rich_txt_sign.Text.ToString().Trim();
bool verify = RSA_1.VerifyData(original_message, signed_message, rsa_paras, hash_code);
if (verify)
{
MessageBox.Show("Xác thực thành công", "Thông báo");
}
else
{
MessageBox.Show("Xác thực thất bại", "Thông báo");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "Thông báo");
}
}