private void button1_Click(object sender, EventArgs e)
{
byte key = 123;
Text = encryptDecryptStr(textBox1.Text, key);
}
private string encryptDecryptStr(string p, byte key)
{
byte[] bs = Encoding.Default.GetBytes(p);
for (int i = 0; i < bs.Length; i++)
{
bs[i] = (byte)(bs[i] ^ key);
}
return Encoding.Default.GetString(bs);
}
private void button2_Click(object sender, EventArgs e)
{
byte key = 123;
button2.Text = encryptDecryptStr(Text, key);
}