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Text of the page (random words):
downloadable conditional access system wikipedia jump to content main menu main menu move to sidebar hide navigation main page contents current events random article about wikipedia contact us contribute help learn to edit community portal recent changes upload file special pages search search appearance donate create account log in personal tools donate create account log in contents move to sidebar hide top 1 history 2 fcc mandate 3 see also 4 references 5 external links toggle the table of contents downloadable conditional access system add languages add links article talk english read edit view history tools tools move to sidebar hide actions read edit view history general what links here related changes upload file permanent link page information cite this page get shortened url switch to legacy parser print export download as pdf printable version in other projects wikidata item appearance move to sidebar hide from wikipedia the free encyclopedia proposed software downloading system this article needs to be updated the reason given is was this ever used please help update this article to reflect recent events or newly available information july 2024 downloadable conditional access system or dcas was a proposal advanced by cablelabs for secure software download of a specific conditional access client computer program which controls digital rights management drm into an ocap compliant host consumer media device history edit the national cable telecommunications association ncta proposed that dcas be used as a substitute for physical cablecards a standard also created by cablelabs for which products began appearing in august 2004 as part of industry compliance to the fcc mandate which in turn is pursuant to the telecommunications act of 1996 dcas is growing in popularity as a less expensive alternative for cablecard with major north american operator deployments from cablevision 1 and charter 2 dcas deployments can be expected to grow in the coming years thanks to favorable regulatory view from the stela reauthorization act of 2014 3 and fcc appointing a downloadable security technical advisory committee 4 and wider support for key ladder k lad functionality from system on chip soc vendors and set top box manufacturers dcas in the early days was a controversial proposal for a variety of reasons it did not exist had no set deadlines for support on all cable systems no specification even in draft form was public may not have satisfied fcc requirements that security modules be separable and required an operating system ocap that a majority of consumer electronics ce manufacturers did not wish to implement the dcas project was abandoned by cablelabs in 2009 5 dcas system diagram dcas as envisioned removed the need for physical set top boxes or cablecards to protect encrypted digital content it was proposed that instead of a card with removable circuitry a custom asic chip could be soldered onto the circuitboard of any digital cable ready device dcas software would then run on this custom chip additional circuitry needed to run the ocap operating system would be required ocap programs then would be used as the sole method of interacting with dcas since it will enable cable companies to force the download of new security software as set top box asics have now advanced to soc implementations the minimum hardware circuitry to store key ladders k lad is embedded in the silicon enabling much of the security functions to be implemented in software further just as traditional set top box functionality such as user interface and middleware are moving to the cloud dcas enables much of the security functions also to move to the server side or the cloud this allows thin client set top boxes to be deployed that can be remotely managed in lieu of the more expensive cablecard based systems the basic purpose of dcas was to implement drm protection in software supported by future ocap compliant consumer devices such as digital televisions dvrs and set top boxes still required to support legacy non ocap compliant devices this would secure the information transmitted in the link between the cable company and the consumer device besides decryption the dcas software would control how the content is used whether it must be deleted immediately after viewing or after a set period of time which devices it may be transferred to and if transfer or recording is permitted the scheme could possibly be used more broadly and was being advanced by rupert murdoch s company nds as a drm method useful also for portable media players and other devices not attached to cable networks an allegedly working dcas prototype was created by samsung and nds for the cable industry and was demonstrated to the fcc in november 2005 6 according to brian dietz of the national cable telecommunications association ncta we expect downloadable security to be supported nationwide by msos by july 2008 it was asserted by proponents that dcas provided greater security for the cable industry because it allows them to change their entire security structure by downloading new software into host devices if a particular encryption algorithm is cracked it could be replaced by another one detractors noted that if the physical circuitry is compromised it may not be replaced as is the case with cablecards some dcas scenarios could use removable cards ocap based devices may incorporate internal support for a kind of smart card similar to the current sim chip in a gsm cell phone to identify the subscriber and provide further protection proponents asserted that dcas is more supportable since dcas devices would not require a qualified technician to install the card detractors asserted that the final version of dcas may require a physical card insertion and that technicians are not required to insert cablecards anyway since they are merely the same kind of cards that consumers routinely insert in their laptops it was asserted that if cable companies were finally forced to agree on a standard for two way communication that cablecards will be able to be remotely configured as would be the case with dcas devices the expectation of the appearance of dcas as a possible future technology was used as a reason that the fcc should release cable companies from obligations regarding cablecards verizon fios wished to be released from having to support cablecards at all on its network cable companies point to dcas as a reason that they should be released from their obligation to use cablecards in their devices as the fcc directed in 1998 the consumer electronics association representing major consumer electronics manufacturers disagreed with these applications for waivers pointing to the insubstantiality of the proposal and that cable companies are notoriously late and half hearted in their support of their own standards as evidenced by their behavior with their earlier cablecard proposal detractors of dcas point out that the proposal is being used to sow fear uncertainty and doubt in the minds of consumers ce companies and the fcc consumers are motivated to hold off buying cablecard devices ce companies are wondering whether their cablecard technology investments will soon be obsolete and it causes doubt amongst fcc regulators whether they should enforce deadlines and restrictions placed on cable companies regarding cablecards detractors point to this as the latest in a decade long set of delaying tactics that the cable company has used to avoid compliance with the telecommunications act of 1996 cable companies counter that cablecard devices have failed in the marketplace and that it would be foolish for them to be forced to use cablecards when the superior technology of dcas will soon be available fcc mandate edit the fcc has ruled that starting july 1 2007 cable customers are to be able to purchase dvrs and other third party devices to legally view digital cable without having to rent hardware from the cable company see also edit interactive television copy protection opencable application platform conditional access references edit cisco powers dcas deployment at cablevision https www youtube com watch v dmjg53hy9jm charter unveils worldbox cisco key supplier of boxes with downloadable security http www multichannel com news technology charter unveils its worldbox 386685 stela reauthorization act of 2014 fcc appoints downloadable security advisory committee http www fcc gov document appointment members downloadable security advisory committee jeff baumgartner msos closing polycipher headquarters light reading cable june 5 2009 http www lightreading com document asp doc_id 177662 site lr_cable implementation of section 204 external links edit opencable dcas cablelabs archived from the original on 2006 03 26 retrieved 2006 06 05 v t e digital television in north america terrestrial digital broadcasting atsc tuners digital subchannels virtual channels distributed transmission system datacasting guide plus national datacast updatelogic metropolitan television alliance grand alliance digital switchover all channel receiver act safer act digital channel election set top boxes digital television adapter u s converter box coupon program legislation analog passthrough dvd recorders digital video recorders digital standards atsc standards atsc atsc m h 8vsb a vsb e vsb psip pmcp full list standard definition tv 480i 576i enhanced definition tv 480p 576p high definition tv 720p 1080i 1080p ultra high definition tv 2160p serial digital interface smart antennas cea 909 digital networks digital multicast television network see template american broadcast television template canadian television networks national deployment list by country canada mexico united states hdtv transition wireless spectrum auction cable digital cable digital cable ready tv qam tuners interactive digital cable ready tv opencable application platform encryption must carry subscription tv allvid cablecard downloadable conditional access system tru2way satellite tv dvb s dish network globecast world tv free to air receiver bell satellite tv telus satellite tv dish méxico digicipher 2 4dtv shaw direct claro puerto rico digital satellite service dvb s2 directv vrio sky brazil sky mexico iptv u verse tv bell fibe tv fibreop telus optik tv technical issues 14 9 aspect ratio active format description broadcast flag channel protection ratios hdtv blur hierarchical modulation pirate decryption standards conversion video on demand retrieved from https en wikipedia org w index php title downloadable_conditional_access_system oldid 1336251577 categories conditional access television broadcasting digital cable hidden categories articles with short description short description is different from wikidata wikipedia articles in need of updating from july 2024 all wikipedia articles in need of updating this page was last edited on 2 february 2026 at 19 17 utc page was rendered with parsoid 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