[RESOLVED] Serial Codes

Hey, I'm trying to make a serial code for my program. Heres what I have so far.

VB Code:

Private Declare Function RegOpenKey Lib "advapi32.dll" Alias "RegOpenKeyA" (ByVal Hkey As Long, ByVal lpSubKey As String, phkResult As Long) As Long
 
Private Sub Command2_Click()
Dim A As Integer
Dim B As Integer
Dim C As Integer
Dim D As Integer
Dim E As Integer
Dim F As Integer
Dim G As Integer
Dim H As Integer
Dim I As Integer
Dim J As Integer
 
A = "5"
B = "3"
J = "1"
I = "2"
H = "9"
C = "7"
D = "8"
G = "0"
F = "4"
E = "6"
 
 
Dim User As String
Dim Correct As String
User = frmLeak.Text2
Correct = modStuff.VolumeSerial("C") * "3.14159236" + Val(293847)
If Correct = User Then
WriteRegistry &H80000001, "software\microsoft\VeNoM\", "Policy", ValString, frmLeak.Text2
Load frmMain
Unload frmLeak
Else
MsgBox "Incorrect Serial.  Please Contact VeNoM!", vbCritical, "Leak!"
Unload frmLeak
End If
End Sub
 
Private Sub Form_Load()
 
Dim A As Integer
Dim B As Integer
Dim C As Integer
Dim D As Integer
Dim E As Integer
Dim F As Integer
Dim G As Integer
Dim H As Integer
Dim I As Integer
Dim J As Integer
 
A = "5"
B = "3"
J = "1"
I = "2"
H = "9"
C = "7"
D = "8"
G = "0"
F = "4"
E = "6"
 
If KeyExists(&H80000001, "software\microsoft\VeNoM\") = True Then
Dim User As String
Dim Correct As String
User = modReg.ReadRegistry(&H80000001, "software\microsoft\VeNoM\", "Policy", False)
Correct = modStuff.VolumeSerial("C") * "3.14159236" + Val(293847)
If Correct = User Then
Load frmMain
Unload frmLeak
Else
Load frmLeak
End If
Else
Load frmLeak
End If
End Sub

My question is...how do I make it so that it shows the letters and not the numbers. If all it shows is the numbers..then it will be very easy to crack...but if it shows letters...it will be much harder.

Thanks,
jizz

What will the user input? letters or numbers and would the code (in the above code) be 5312978046?

They will press a button which will display their hard drive serial..then I will take their serial and multiply it by 3.14159236 and add 293847 to it to make it somewhat hard to figure it out...but it will be semi easy because they can find out what I did by doing this formula

Their HD Serial/Serial for program and it will display a number which can be used for all formulas.

Therefore, I just want to hide the numbers into letters so it will be much much harder to figure it out.

i see, you want the user to input letters?

if this is true, put the serial code into a string and then split it up into it's seperate numbers. Then use a code such as

If (firstsplit)= A then
Label1.caption = Label1.caption + "A"
End If

*the first split is just everytime you split you will report back to that to see what letter it is.

http://vbforums.com/showthread.php?t...litting+string go here for splitting.

In other words, do you want to encrypt the serial number ?

Yes, I want to encrypt it. Ive found this...from you michael :) it works like a charm :)

VB Code:

Public Function RndCrypt(ByVal Str As String, ByVal Password As String) As String
    '
    '  Made by Michael Ciurescu (CVMichael from vbforums.com)
    '  Original thread: [url]http://www.vbforums.com/showthread.php?t=231798[/url]
    '
    Dim SK As Long, K As Long
    
    ' init randomizer for password
    Rnd -1
    Randomize Len(Password)
    ' (((K Mod 256) Xor Asc(Mid$(Password, K, 1))) Xor Fix(256 * Rnd)) -> makes sure that a
    ' password like "pass12" does NOT give the same result as the password "sspa12" or "12pass"
    ' or "1pass2" etc. (or any combination of the same letters)
    
    For K = 1 To Len(Password)
        SK = SK + (((K Mod 256) Xor Asc(Mid$(Password, K, 1))) Xor Fix(256 * Rnd))
    Next K
    
    ' init randomizer for encryption/decryption
    Rnd -1
    Randomize SK
    
    ' encrypt/decrypt every character using the randomizer
    For K = 1 To Len(Str)
        Mid$(Str, K, 1) = Chr(Fix(256 * Rnd) Xor Asc(Mid$(Str, K, 1)))
    Next K
    
    RndCrypt = Str
End Function

I was going to give you that link if you would have said "Yes" to my previous question, but you are ahead of me...