make program secure

[motormad]

Is it possible to make a program expire?

Or mak a password that changes. and not because of the date?

thanx

[jchd]

The real answer to both questions is NO

You can play games that will stop your 9-old kid sister or delay your 91-old grand-uncle, but you can't seriously achieve what you want.

Moral: never put value in the software.

[motormad]

ok

[water]

Best thing I've seen on this forum is It allows trial periods etc.

Edited November 19, 2010 by water

[wakillon]

Basically you can create an expiration like this

#include <Date.au3>

$_Key = "HKEY_CURRENT_USER\SOFTWARE\ProgName"
$_Value = RegRead ( $_Key, "FirstInstallDate" )
ConsoleWrite ( "$_Value : " & $_Value & @Crlf )
If $_Value = '' Then 
    RegWrite ( "HKEY_CURRENT_USER\SOFTWARE\ProgName", "FirstInstallDate", "REG_SZ", _NowCalc ( ) )
Else
    $iDateCalc = _DateDiff ( 'd', $_Value, _NowCalc ( ) )
    MsgBox ( 4096, "", "Number of days since first install: " & $iDateCalc )
EndIf

At the first install a registry key is wrote with the install date

and at the next executions you can compare the number of days you want limit !

[motormad]

Thanx Water and Wakillon.

I think ill try this in combinations.

yesyes

this is it

I yust love this Forum and Autoit

[wakillon]

Thanx Water and Wakillon.

I think ill try this in combinations.

yesyes

this is it

I yust love this Forum and Autoit

It's a basic start !

Glad to help you

[jchd]

About as secure as ROT13, but it's a start

[motormad]

jchd,

I am sure you are better in programming then me.

No doubth.

But the people for who i want to protect my script ar not as good as me.

So for me , now , its secure enough ;-)

[JohnOne]

So for me , now , its secure enough ;-)

In that case, heres a freebie garden variety password dealy which changes each month, and are stored i9n the script.

Global $aPass[13] = [12, "password1", "password2", "password3", "password4", "password5", _
        "password6", "password7", "password8", "password9", "password10", "password11", "password12"]

$sPass = $aPass[@MON]

$sUserPass = InputBox("Title", "Enter password:")

If $sPass == $sUserPass Then
    MsgBox(0, "", "Yay !")
    ;script start
Else
    MsgBox(0, "", "Boooo !")
    Exit
EndIf

[motormad]

I made this,

the Xprotec always gives an error. (fatal com)

I' like this for now

Thanks for your help.

I know jchd

I know

its simple

regedit ...

;;================================================================================
;;PROTECT
;;================================================================================
#include <Date.au3>

$_Key = "HKEY_CURRENT_USER\SOFTWARE\ProgName"
$_Value = RegRead ( $_Key, "FirstInstallDate" )
$_Times_Value = RegRead ( $_Key, "FirstInstall" )
ConsoleWrite ( "$_Value : " & $_Value & @Crlf )
If $_Value = '' or $_Times_Value = '' Then 
    $_Times_Value = 1
    RegWrite ( "HKEY_CURRENT_USER\SOFTWARE\ProgName", "FirstInstallDate", "REG_SZ", _NowCalc ( ) )
Else
    $_Times_Value = $_Times_Value + 1
    $iDateCalc = _DateDiff ( 'd', $_Value, _NowCalc ( ) )
    MsgBox ( 4096, "", "Number of days since first install: " & $iDateCalc & " Used : " & $_Times_Value & " of 10")
    if $iDateCalc > 14 or $_Times_Value  > 10 Then
    exit
    endif
EndIf
    RegWrite ( "HKEY_CURRENT_USER\SOFTWARE\ProgName", "FirstInstall", "REG_SZ", $_Times_Value)  
;;================================================================================
;;PROTECT
;;================================================================================

[jchd]

@motormad,

Don't believe I'm harsh with you. I'm just taking the word secure seriously, or at least at its face meaning/value. Securing something (anything) has to be a balance betwen he money/time you invest in protecting it and the money/time needed to break/steal it. So if your intended audience is 9- or 91-old (no pun intended against elders) then half-backed tricks may certainly be enough for you.

Background: I've spent much time in the formal methods domain where you build mathematical models of the system studied. When a formal model exists, you can _prove_ (in the mathematical sense) things about its behavior/correctness. In this domain, secure means secure against any feasible attack, always or never mean no exception at all, ...

[motormad]

Thanks.

If i need Secure as in the real meaning of the word ... I'l know who to contact ;-)

[jchd]

... and the price to pay