wanderer/ KRY-0x01-ng
1
0
Fork 0
Code Issues Releases 1 Activity

chore: added key checking [wip] 

* message padding [wip]
This commit is contained in:
citizen-VM 2020-08-21 18:19:32 +02:00
parent 4d9260c7f0
commit 66a8a00b13
Signed by: wanderer
GPG Key ID: 6391444A736EEE7E
1 changed files with 67 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

80
main_form.cs
View File

@ -24,16 +24,9 @@ namespace KRY_0x01_ng
public string prune_input(TextBox tb)
{
string str = tb.Text.ToUpper();
string alpha_str = Regex.Replace(str, " ", "MEZERABRO");
alpha_str = alpha_str.Replace("[^A-Z]+", "");
return alpha_str.Replace("W", "V");
}
public string restore_order(string str)
{
string alpha_str = Regex.Replace(str, "MEZERABRO", " ");
string alpha_str = Regex.Replace(str, "SPACEBRO", " ");
return alpha_str;
}
@ -73,22 +66,84 @@ namespace KRY_0x01_ng
}
void check_key()
void check_key(TextBox tb_k)
{
if (tb_k.Text.Length == 0)
{
MessageBox.Show("Empty key.", "Warning");
return;
}
string str_to_check = str_to_check = String.Join("", tb_k.Text.ToUpper().Distinct());
if (str_to_check.Length < 9)
{
MessageBox.Show($"The key is too short ({str_to_check.Length} characters).\nKey requirements: 9-25 unique alphabetic characters", "Error");
return;
}
else if (str_to_check.Length > 25)
{
MessageBox.Show("The key is too long", "Warning");
return;
}
Match match = Regex.Match(str_to_check, @"\d|\s+");
if (match.Success)
{
MessageBox.Show("Only alphabetic characters and spaces are allowed.\nCheck the key for numbers, symbols or tab whitespace and remove them before continuing.", "Error");
return;
}
TextBox tb_pruned_k = textBox2;
tb_pruned_k.Text = str_to_check;
return;
}
void check_message(TextBox tb_m)
{
string msg = pad(tb_m.Text);
if (tb_m.Text.Length == 0)
{
MessageBox.Show("Empty message, nothing to do.", "Warning");
return;
}
string msg = Regex.Replace(tb_m.Text.ToUpper(), " ", "SPACEBRO");
Match match = Regex.Match(msg, @"\d|\s+");
if (match.Success)
{
MessageBox.Show("Only alphabetic characters and spaces are allowed.\nCheck the message for numbers, symbols or tab whitespace and remove them before continuing.\nAlso, \"W\" will be replaced by \"V\".", "Error");
return;
}
msg = msg.Replace("W", "V");
textBox5.Text = msg;
return;
}
void prep_message(TextBox tb_m)
{
string msg = tb_m.Text;
if (msg.Length % 2 != 0)
{
if (! msg.EndsWith("X"))
{
msg += "X";
}
else if (! msg.EndsWith("Q"))
{
msg += "Q";
}
else if (! msg.EndsWith("Z"))
{
msg += "Z";
}
}
textBox6.Text = pad(msg);
return;
}
void encrypt()
{
check_message(textBox4);
prep_message(textBox5);
string cryptmessage = "";
string m_text = prune_input(textBox4);
textBox7.Text = cryptmessage;
return;
}
@ -97,14 +152,13 @@ namespace KRY_0x01_ng
private void button1_Click(object sender, EventArgs e)
{
/* encrypt button */
check_message(textBox4);
encrypt();
}
private void button2_Click(object sender, EventArgs e)
{
/* check key button */
check_key();
check_key(textBox1);
}
}
}