Viaccess is a

conditional access system Conditional access (CA) is a term commonly used in relation to software and to digital television systems. Conditional access is an evaluation to ensure the person who is seeking access to content is authorized to access the content. Access is man ...

developed by

Orange S.A. Orange S.A. (; formerly , stylised as france telecom) is a French multinational telecommunications corporation founded in 1988 and headquartered in Issy-les-Moulineaux, near Paris. ''Orange'' has been the corporation's main brand for mobile, ...

There are six versions in use today, Viaccess PC2.3, Viaccess PC2.4, Viaccess PC2.5, Viaccess PC2.6, Viaccess ACS3.x/Prime Sentinel, Viaccess ACS4.1, Viaccess ACS5.0, and Viaccess ACS6.x/Adaptive Sentinel. Viaccess was developed as the digital version of the

EuroCrypt EuroCrypt is a conditional access system for Multiplexed Analogue Components-encoded analogue satellite television Satellite television is a service that delivers television programming to viewers by relaying it from a communications satell ...

system used with the hybrid

MAC Mac or MAC may refer to: Common meanings * Mac (computer), a line of personal computers made by Apple Inc. * Mackintosh, a raincoat made of rubberized cloth * Mac, a prefix to surnames derived from Gaelic languages * McIntosh (apple), a Canadi ...

system, The first version is sometimes referred to as Viaccess 1, and the latter three, although different, as Viaccess 2. PC2.3 and PC2.4 are known to be ineffective, and many

set-top box A set-top box (STB), also known as a cable converter box, cable box, receiver, or simply box, and historically television decoder or a converter, is an information appliance device that generally contains a Tuner (radio)#Television, TV tuner inpu ...

es can be 'patched' to decrypt Viaccess signals without payment, however PC2.5 and PC2.6 are secure, with PC2.5 remaining secure two years after its first commercial deployment. PC2.6 was introduced at the end of 2005. PC3.0 was introduced during mid-2007. There are two modifications of Viaccess PC2.3 in use. The first, known as TPS Crypt, is used by TPS. Despite being compromised also, the TPS Crypt system has been further modified to use Advanced Encryption System (AES) keys. These AES keys were originally updated once weekly, however after this inconvenienced unauthorised viewers little, a second TPS crypt system was introduced, by which keys are changed every 12 minutes, with keys being sent over TPS's internal Open TV system. This therefore meant that only TPS receivers could receive the new AES key, and not the insecure TPS subscription cards. Monitoring and analysing of the keys by hacking groups, however, has brought about key lists, where the AES keys have been successfully predicted. Implementation of this procedure of automatically updating keys has proved difficult, if not impossible, to implement on many satellite receivers, rendering the TPS Crypt AES system a general success. In 2008, Viaccess acquired Orca interactive and in 2012 they merge under the name Viaccess-Orca,Viaccess and Orca interactive to merge
/ref> which specializes in video content security and anti-piracy, OTT & IPTV platforms and targeted TV advertising. The second Viaccess modification, called ThalesCrypt, is used by Canal Satellite France to protect its contents on the transport network to the head-ends of the cable networks; it is an over-encryption mechanism of the original protocol encryption keys. Viaccess is currently used by a large number of providers. These include: * Team:Media Bosnia Some programs *

ART Art is a diverse range of cultural activity centered around ''works'' utilizing creative or imaginative talents, which are expected to evoke a worthwhile experience, generally through an expression of emotional power, conceptual ideas, tec ...

NTV Plus NTV Plus () is the brand name for the Russian digital satellite television provider, transmitted from Eutelsat's W4 satellite at 36.0°E and from Bonum 1 at 56.0°E. Previously a part of Vladimir Gusinsky's MediaMost holding, now it is the ...

* Televisa Networks * Canal Satellite France * FRANSAT *

AB Sat AB Sat is a package of digital terrestrial television channels (encrypted with Viaccess and Mediaguard) offered by the satellite companies Hot Bird and Astra and marketed in France, Belgium, Switzerland and Germany. The channels are all (or pa ...

* ETTV * TBLTV * Home2US * Orange TV Romania *

Orange Polska Orange Polska SA (formerly Telekomunikacja Polska) is a Polish telecommunications provider established in December 1991. It is a public company traded on the Warsaw Stock Exchange, with a controlling stake owned by Orange S.A., the latter control ...

YouSee YouSee is the largest quadruple play service provider in Denmark, and is a part of Nuuday which is a spun-off company from TDC Group, the largest telecommunications company in Denmark which was split into two separate companies. YouSee currentl ...

Croatian Radiotelevision ''Hrvatska radiotelevizija'' ( HRT), or Croatian Radiotelevision, is a Croatian public broadcasting company. It operates several radio and television channels, over a domestic transmitter network as well as satellite. HRT is divided into three ...

RTV Slovenija Radiotelevizija Slovenija () – usually abbreviated to RTV Slovenija, RTV SLO (or simply RTV within Slovenia) – is Slovenia's national public broadcasting organization. Based in Ljubljana, it has regional broadcasting centres in Koper and Ma ...

* Skylink Czechia/Slovakia *

SRG SSR idée suisse The Swiss Broadcasting Corporation (; ; ; ; SRG SSR) is the Swiss public broadcasting association, founded in 1931, the holding company of 24 radio and television channels. Headquartered in Bern, the Swiss Broadcasting Corporation is a non-pro ...

Cyfrowy Polsat Cyfrowy Polsat S.A. (; English: ''Digital Polsat''), trading as Polsat Box is a Polish Direct to Home, DTH satellite TV platform. It is the fifth-largest digital platform in Europe and the largest in Central and Eastern Europe. Polsat Box has 3.47 ...

* Platforma Canal+ Viaccess is the 3rd largest

conditional access Conditional access (CA) is a term commonly used in relation to software and to digital television systems. Conditional access is an evaluation to ensure the person who is seeking access to content is authorized to access the content. Access is man ...

system provider in the world (in 2004). Viaccess is also a subsidiary of

which offers

pay TV Pay television, also known as subscription television, premium television or, when referring to an individual service, a premium channel, refers to subscription-based television services, usually provided by multichannel television providers, b ...

and

digital rights management Digital rights management (DRM) is the management of legal access to digital content. Various tools or technological protection measures, such as access control technologies, can restrict the use of proprietary hardware and copyrighted works. DRM ...

enabled software.
Orca Interactive
is a subsidiary of Viaccess which offers

IPTV Internet Protocol television (IPTV), also called TV over broadband, is the service delivery of television over Internet Protocol (IP) networks. Usually sold and run by a Telephone company, telecom provider, it consists of broadcast live telev ...

Middleware since 2008.

References

External links

Viaccess home page
{{broadcast encryption Digital television Conditional-access television broadcasting