software protect&security issue

[xmedia]

I want to protect my software developed with Flash+Swfkit, and the keep security of user's data

[xmedia]

I'd like to combine nic's MAC and disk's serial number
with MD5 code, is that good enough?

[xmedia]

the way I consider to be used as follow:
1 user run an utility(util1) returns a MD5 code
2 I run another utility(util2) get a new MD5 code
3 email to user,
4 when user run my App with the same arithmetic as used in util1 and utile2, check if the App is illeged use!

do you think this way is good enough?

[xmedia]

FFish code could be something like following:
var inet= new Inet()
var ipconfig=inet.getIPConfig();
trace(ipconfig.ifType(1)+":"+ipconfig.ifMac(1))
for (i = 0; i < 4; i++)
{
var di = new DiskInfo(i);
trace("=========driver========"+i)
if (di != null)
{
trace(di.modelNumber);
trace(di.serialNumber);
var s = Encryption.md5(ipconfig.ifMac(1)+di.serialNumber)
// user give me this
.........
trace("MD5 first:"+s);


var ss = Encryption.md5(s)
// I recalculate an new MD5
trace("MD5 again:"+ss);
.........

}
}
trace("m:\\test.txt MD5:"+Encryption.md5File("m:\\test.txt"))

[xmedia]

I've checked the InterNet today, and found there exists some ways to change Disk serial number and MAC, and learned that use CPU serial number as verify infomation is more powerful.

I've also learned that Windows getSystemInfo() API can get CPU serial number, the problem is that I'm not good at DLL wrapper! could you please give me a sample code show me how to get CPU s/n in FFish!

thanks a lot!

[SWFKit]

HDD serial number cannot be modified by only software, and the "GetSystemInfo" function cannot return the CPU ID. However, we will try to build a dll to retrieve CPU ID.

[xmedia]

Thanks for your replay first!
I wonder if di.serialNumber returns HDD sn, or Disk sn created by Windows Setup process.
and want to get your DLL for CPU Id!

good SWFKitting!

[xmedia]

does your DLL for CPU sn comes out?

[SWFKit]

Sorry, we stopped building it, because we found that neither BIOS sn nor CPU id is unique. We recommend that you use the HDD sn, not only because it is unique, but because it is very hard to change: using some HDD repair hardware you may change your HDD sn (only experts can do this), but in that case you will also risk the data on your HDD.