- #Generator algorithm from key fob number license key#
- #Generator algorithm from key fob number registration#
- #Generator algorithm from key fob number validation code#
- #Generator algorithm from key fob number software#
- #Generator algorithm from key fob number code#
If it’s just a piece of computer code, isn’t it possible the numbers the computer generates could be predictable? You may be wondering how a computer can actually generate a random number. These random numbers are essential for secure encryption, whether you’re encrypting your own files or just using an HTTPS website on the Internet. We want to generate these numbers in a very unpredictable way so attackers can’t guess them. We can’t just use the same numbers over and over. The more you put in, the more complicated it'll be, but the harder it'll be to crack.Cryptography requires numbers that attackers can’t guess. As long as you can replicate it with the same results (any good hash function can), you can check the hashed results against each other and make sure it's valid. One thing to consider is you don't need to be able to reverse the process. You can use any combination of hash functions, data gets, string inputs, boolean operations, etc.
#Generator algorithm from key fob number code#
The only problem is system changes can render a code invalid, so you can either warn your users (and give away part of the process) or let them find out accidentally (not good).
If you can get ahold of the processor name or speed, or anything else, you can run something like that. validCode = getCode(name) Ī few use a system-based code (Windows is a good example), where it samples bits of hardware and builds an identifier from that.
#Generator algorithm from key fob number validation code#
Some fancier apps use an internal function to generate a validation code of some sort, and when you combine that and the given name, you can create (and send back) a hash. It is also a very simple system, especially if you use a well-known hash such as MD5. This has the advantage of being constant (as long as the name is the same, the hash is, and so the key is).
#Generator algorithm from key fob number software#
:pĪnyway, there are a few ways you can handle it.Ī lot of software uses name (and possibly company) string(s) and a hash function to generate a key. However, as a delaying measure or a way to decrease the chance of people getting premium support for stolen copies, it will help. Even if you encrypt the final executable. However much time it takes you to write a validation/encryption/key system, estimate roughly half that for someone to break it. In all honesty, what you're trying to do is pointless. It's going to happen, but they're such a tiny part of the market that it won't significantly affect your overall sales. But if you keep a database of the "official" license keys you've generated so far, at least you'll be able to identify the fraudsters later on (perhaps when they try to download "premium" content or something).īut don't worry so much about stopping the hackers from cracking your code. Once someone figures out how you're generating the license keys, they can generate their own.
#Generator algorithm from key fob number registration#
Then, in the software you ask for their name again, plus the registration key (that MD5-derived thing) you check to see that they match, which activates the software.Ĭan this be hacked? Absolutely. MD5 sum) of the user's name, or some variation on it.
#Generator algorithm from key fob number license key#
A popular mechanism is to, at purchase, ask for the user's name, and then give him a license key that's derived from a cryptographic hash (e.g. Instead of worrying about making it "unbreakable", just do something simple. For the most popular, most expensive proprietary software you can buy, you can also find "key generators" and hacked versions that don't require licensing. There is no reliable licensing algorithm.
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