Best technique

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4 total messages Started by ki Tue, 05 Sep 2006 23:23

#2997

Author: ki
Date: Tue, 05 Sep 2006 23:23

9 lines
1032 bytes

Hello world

I want to write a serial key generator algorithm for a program for the 
registration and trial version.
For that i want a unique id from the pc.
What is the best technique.
Any suggestion greately appreciated.

Thanks

Re: Best technique

#2999

Author: Colin B Maharaj
Date: Wed, 06 Sep 2006 02:12

56 lines
2432 bytes

This was discussed some time ago.....
This part of the registry is created every time you reboot the PC. It is 
a fixed value. It can be altered by an administrator, but, will revert 
after a reboot.

You can then HASH this and use the hash as a unique string for your system.

AnsiString SystemBiosVersion()
{
    HKEY hKey;
    DWORD keyType   = 0;
    DWORD retValue  = 0;
    DWORD keyLength = 0;
    char *t = new char [MAX_PATH];
    char *CV = new char [256];
    AnsiString A="Unknown Bios";

    strcpy(CV, "Hardware\\Description\\System");
    retValue = RegOpenKeyEx(HKEY_LOCAL_MACHINE, CV, NULL, KEY_READ, &hKey);
    if (retValue != ERROR_SUCCESS)
    {
      delete CV;
      delete t;
      return A;
    }
    RegQueryValueEx(hKey, "SystemBiosVersion", NULL, &keyType, NULL, 
&keyLength);
    retValue = RegQueryValueEx(hKey, "SystemBiosVersion", NULL, 
&keyType, (UCHAR *)t, &keyLength);
    RegCloseKey(hKey);

    if (retValue != ERROR_SUCCESS)
    {
       delete CV;
       delete t;
       return A;
    }
    A = t;
    delete CV;
    delete t;
    return A;
}


ki wrote:
> Hello world
> 
> I want to write a serial key generator algorithm for a program for the 
> registration and trial version.
> For that i want a unique id from the pc.
> What is the best technique.
> Any suggestion greately appreciated.
> 
> Thanks 
> 
>

Re: Best technique

#2998

Author: Colin B Maharaj
Date: Wed, 06 Sep 2006 02:14

17 lines
1549 bytes

I see you were discussing MAC Address stuff earlier. I have seen 
postings where the MAC address can be altered at a software level but I 
never tried it. Also certain mother boards can change the network card 
MAC address.

ki wrote:
> Hello world
> 
> I want to write a serial key generator algorithm for a program for the 
> registration and trial version.
> For that i want a unique id from the pc.
> What is the best technique.
> Any suggestion greately appreciated.
> 
> Thanks 
> 
>

Re: Best technique

#3000

Author: JD
Date: Wed, 06 Sep 2006 08:54

11 lines
1018 bytes

"ki" <shaikakbar250281@yahoo.co.in> wrote:
>
> [...] For that i want a unique id from the pc.

This has been discussed many times before in great detail.
Search the archives:

    http://www.tamaracka.com/search.htm

~ JD

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