Editing Trusted Computing (section)

==Possible applications==
===Digital rights management===
Trusted Computing would allow companies to create a digital rights management (DRM) system which would be very hard to circumvent, though not impossible. An example is downloading a music file. Sealed storage could be used to prevent the user from opening the file with an unauthorized player or computer. Remote attestation could be used to authorize play only by music players that enforce the record company's rules.  The music would be played from curtained memory, which would prevent the user from making an unrestricted copy of the file while it is playing, and secure I/O would prevent capturing what is being sent to the sound system. Circumventing such a system would require either manipulation of the computer's hardware, capturing the analogue (and thus degraded) signal using a recording device or a microphone, or breaking the security of the system.

New business models for use of software (services) over Internet may be boosted by the technology. By strengthening the DRM system, one could base a business model on renting programs for a specific time periods or "pay as you go" models. For instance, one could download a music file which could only be played a certain number of times before it becomes unusable, or the music file could be used only within a certain time period.

===Preventing cheating in online games===
Trusted Computing could be used to combat [[cheating in online games]]. Some players modify their game copy in order to gain unfair advantages in the game; remote attestation, secure I/O and memory curtaining could be used to determine that all players connected to a server were running an unmodified copy of the software.<ref>{{cite book|author=Bin Xiao|title=Autonomic and Trusted Computing: 4th International Conference, ATC 2007, Hong Kong, China, July 11-13, 2007, Proceedings|url=https://books.google.com/books?id=cUhpq98Zb8AC&pg=PA124|year=2007|publisher=Springer Science & Business Media|isbn=978-3-540-73546-5|page=124}}</ref>

===Verification of remote computation for grid computing===
Trusted Computing could be used to guarantee participants in a [[grid computing]] system are returning the results of the computations they claim to be instead of forging them. This would allow large scale simulations to be run (say a climate simulation) without expensive redundant computations to guarantee malicious hosts are not undermining the results to achieve the conclusion they want.<ref>{{cite web | url = http://www.hpl.hp.com/personal/Wenbo_Mao/research/tcgridsec.pdf | title = Innovations for Grid Security From Trusted Computing | author = Mao, Wenbo Jin, Hai and Martin, Andrew | date = 2005-06-07 | access-date = 2007-02-07 |archive-url = https://web.archive.org/web/20060822043633/http://www.hpl.hp.com/personal/Wenbo_Mao/research/tcgridsec.pdf <!-- Bot retrieved archive --> |archive-date = 2006-08-22}}</ref>