License / registration frameworks for C / C++

Question

What sort of registration frameworks are available for C / C++ applications? I'm looking for a library that will handle the cryptographic verification of license and registration keys to enable the full features of an application, and optionally disable features after a specified time interval has elapsed.

For example, on the Mac one might use AquaticPrime, which uses RSA to generate and verify license keys. However, this is Mac only, so it's of limited use for cross-platform applications. Specifically, I need to handle Windows, Mac, and Linux.

Open-source is best, but closed-source solutions are fine. Any ideas?

Answer 1

Kagi has a solution and also handles payments

Another solution is eSellerate

Answer 2

FlexLM is the standard in the graphics/engineering world. Closed source, quite expensive. Currently owned by Macrovision.

RLM is a rather recent company that was started by former employees of the company that made FlexLM. Also closed source, but much more reasonable than FlexLM, in a number of ways. Tell them T-Splines sent you.. :)

These are both on the high end of the pricerange (probably less than 5K), but are extremely flexible, and they work on more platforms than you're looking to support. For example, they do floating licenses, internet activation, license checkouts, etc, etc.

I've also had success with rolling my own using crypto++. Mine had less features, but was useful as a stopgap.

Answer 3

Cryp Key - I have used this solution for 4-5 different products and have been quite successful with them. http://www.crypkey.com/

Answer 4

I've used WiBu Codemeter which is based on a hardware dongle, but is relatively cheap, has many features, and is very hard to get around.

My company has its own custom licensing system as well, but we are considering moving more products to the WiBu system.

Answer 5

CryptoLicensing For MFC works with C, C++. It is cryptography based, but for Windows only.