Apple has snapped up AuthenTec, a Delaware-based company that specializes in security systems such as fingerprint scanners. Under the deal, which was made public by a SEC filing on Thursday, AuthenTec will become a wholly owned subsidiary of Apple, at a price of $8 per share. The agreement is, of course, pending regulatory approval.

The merger document covers a couple specific areas of interest. Firstly, intellectual property: The two companies have entered into an agreement on IP that gives Apple the right to acquire non-exclusive licenses and other rights on AuthenTec hardware, software, and patents. For that, Apple will hands over $20 million, after which it has 270 days to license certain technologies for up to $115 million.

Second, and perhaps more interestingly, is a development agreement, which states that AuthenTec will perform certain non-recurring engineering services for [Apple] for product development and will receive payment of a total of up to $7.5 million for performance of the development work. Any intellectual property that comes out of that work will, of course, be owned by Apple. However, AuthenTec will act as an independent contractor for the development agreement.

Why AuthenTec?

So what does Apple want with AuthenTec? Are we about to see fingerprint scanners embedded in all our MacBooks? My guess is not so much on that front. But AuthenTec makes security-related products for other platforms, too. For example, the company has helped develop a system for Android devices where a fingerprint scanner is used in conjunction with mobile wallet functionality, as a way to secure payments.

Rumors over Apples entry into the mobile payment space have been around for a while now, mostly recently sparked by the companys announcement at this years WWDC of an iOS 6 feature called Passbook. While Passbook is currently designed to collect discount cards, boarding passes, and other tickets, there would seem to be a natural progression to payment-based functionality. During Apples financial call earlier this week, CEO Tim Cook dodged a question from an analyst about Passbooks potential for mobile payments, saying only that it was an important feature of iOS 6 and he wouldnt want to speculate about where it might take us. But AuthenTecs acquisition might suggest that Apple is looking to enter this market at some point in the future, and is investing in technology that would help make such a feature safe and secure for consumers.

Google, meanwhile, has been pushing its own mobile payment system, Google Wallet, though it has yet to catch on here in the U.S. Mobile payments are more common in other parts of the world, such as Japan and some places in Europe.

Among AuthenTecs other important technologies is a digital rights management system, which is used by customers such as HBO in its HBO Go iOS app. Its possible that Apple might be interested in acquiring this technology, though the companys has long had its own DRM scheme called FairPlay.

Apple does tend to acquire small companies from time to time, usually in areas that it wants to control. For example, the company acquired a number of mapping firms that formed the basis of its iOS 6 mapping technology, bought up chip-maker PA Semi so it could design its own processor, and purchased Siri to make, well, Siri. In all of those cases, there was some lag time between the acquisition of the firm and the revelation of exactly what Apple was doing with the technology; if that holds true in this case, then a year or so from now, well probably have the answer.

Apple did not respond to Macworld's request for comment as of this writing.