Site owner have to generate key&license on boonex.com and enter them in dolphin - so dolphin site can ask boonex.com for some info from the market for the site owner, for example list of bought modules.

Communication is performed using OAuth via https protocol.

Upon first install - module is linked to the particular key&secret, after first module install it is impossible to install it on another site.

Key&secret is linked to the particular site, so this pair have to be generated see more for every dolphin site you have.

Modules are updated automatically if they are in boonex market and free or was bought by the user.

All these is already working in Dolphin U - so you can try to see how it works!