![]() ĭisclaimer: I'm the author of SKGL/Software Protector, the article about licensing systems, and Cryptolens.Artisteer 3.0 Multilingual incl Crack-Key | 101 MB NET application, here is step by step example. There are several solutions out there ( make sure to look for those that are web based), Cryptolens is one example. Instead of developing it yourself, chances are that the third party already supports that scenario. Once you scale, you might need to change the licensing logic. ![]() In my mind, the entire procedure should be outsourced to a third party that is specialized in developing that particular component. Outsource to third party - the disadvantage is that most of them are not free of charge. ![]() the open source systems I've observed tend to be very broad in functionality, which contributes to complexity. Use an existing open source system as the starting point - although it might be tempting since it's open source and free of charge, it will take time to bring them to the cloud + configure it to your particular needs + maintain it. Moreover, you will be able to support more licensing models, for instance, subscription based model.īuild such system yourself - which will take a lot of time and distract you from the core features of the app. If you have a web based licensing system, you can keep the keys shorter and not have to store information inside the actual key (which is the case with most offline based systems). Internet Access (or offline with activation files)Ī better alternative is to use a cloud based system that keeps track of all the license keys and allows you to modify them at any time. This means that the end user can attempt to find the encryption key and/or the algorithm (please see ). However, the drawback is that they will most likely use symmetric cryptography and/or store the key generation algorithm inside the application. If you want short and human readable keys that allow you to store things such as expiration date and features, you could use SKGL together with Software Protector, which are both open source ( ). ( less secure) and having long keys or possibly license files ( more secure). ![]() Regarding serial key size, there is a trade off between short/human readable keys Perhaps a public/private keypair encryption situation where only the manufacturer has the private key and the data can be validated by a public key, but the public key cannot be hijacked to create valid keys.Īs this is a product key, it would be great if it were fairly short, 64 characters or maybe 128 max, but the shorter the better, 32 or less would be great. Is there a system that can be used to make it near impossible to generate a valid key? We have all seen this situation, what algorithm works best? Should I ask for a plaintext name of the user and use that to create a unique product key based off of their own information? I may or may not implement online activation, but I am mainly concerned with a good way to generate these keys. I realize this protection can be cracked, but it keeps honest people honest. What is a good algorithm to create a concise key that contains information about what version they have purchased, as well as additional things such as duration of license, etc. I would like to distribute an application, but have license key that they can enter to unlock.
0 Comments
Leave a Reply. |