Communications security is the discipline of preventing unauthorized interceptors from accessing telecommunications in an intelligible form, while still delivering content to the intended recipients.
Digital Video Broadcasting – Satellite (DVB-S) is the original DVB standard for Satellite Television and dates from 1995, in its first release, while development lasted from 1993 to 1997. The first commercial applications was by Star TV in Asia and Galaxy in Australia, enabling digitally broadcast, satellite-delivered Television to the public.
Secure Terminal Equipment (STE) is the U.S. government's current, encrypted telephone communications system for wired or "landline" communications. STE is designed to use ISDN telephone lines which offer higher speeds of up to 128 kbit/s and are all digital. The greater bandwidth allows higher quality voice and can also be utilized for data and fax transmission through a built-in RS-232 port. STE is intended to replace the older STU-III office system and the KY-68 tactical system. STE sets are backwards compatible with STU-III phones, but not with KY-68 sets.
A conditional access module (CAM) is an electronic device, usually incorporating a slot for a smart card, which equips an Integrated Digital Television or set-top box with the appropriate hardware facility to view conditional access content that has been encrypted using a conditional access system. They are normally used with direct-broadcast satellite (DBS) services, although digital terrestrial pay TV suppliers also use CAMs. PC Card form factor is used as the Common Interface form of Conditional Access Modules for DVB broadcasts. Major CAM manufacturers include: Neotion, SmarDTV & SMIT.
Ransomware is a type of malware from cryptovirology that threatens to publish the victim's personal data or perpetually block access to it unless a ransom is paid. While some simple ransomware may lock the system so that it is not difficult for a knowledgeable person to reverse, more advanced malware uses a technique called cryptoviral extortion. It encrypts the victim's files, making them inaccessible, and demands a ransom payment to decrypt them. In a properly implemented cryptoviral extortion attack, recovering the files without the decryption key is an intractable problem – and difficult to trace digital currencies such as paysafecard or Bitcoin and other cryptocurrencies that are used for the ransoms, making tracing and prosecuting the perpetrators difficult.
Television encryption, often referred to as scrambling, is encryption used to control access to pay television services, usually cable, satellite, or Internet protocol television (IPTV) services.
Conditional access or conditional access system is the protection of content by requiring certain criteria to be met before granting access to the content. The term is commonly used in relation to digital television systems and to software.
In Digital Video Broadcasting, the Common Interface is a technology which allows decryption of pay TV channels. Pay TV stations want to choose which encryption method to use. The Common Interface allows TV manufacturers to support many different pay TV stations, by allowing to plug in exchangeable conditional-access modules (CAM) for various encryption schemes.
MultiChoice is a South African company that operates DStv, a major satellite television service in Sub-Saharan Africa and GOtv, a minor service operating in over 9 countries of this area and Showmax service. MultiChoice was formed out of the subscriber-management branch of the M-Net terrestrial pay television company, and broadcasts the full range of M-Net channels on the DStv service. MultiChoice is owned by the media conglomerate of the same name. One of the subsidiaries of MultiChoice is DStv Now, renamed as DStv App, a service that delivers television transmission to mobile devices such as laptops, smart phones and notebooks.
Digiturk is a Turkish satellite television provider founded in 1999, with services starting in mid-2000. They provide both national television channels and their own channels, national radio, and music streams of different genres. Digiturk is also the current owner of the broadcasting rights of Turkish Super League. In addition to Turkey, Digiturk offers its television service throughout Europe, mainly for members of the Turkish diaspora. Reportedly, they have over 3.5 million subscribers worldwide. Digiturk's service is provided from Eutelsat 7A, positioned some 35 degrees west of the more traditionally used Türksat, and is encrypted via Cryptoworks and Irdeto conditional access systems.
Downloadable Conditional Access System or DCAS was a proposal advanced by CableLabs for secure software download of a specific Conditional Access client which controls digital rights management (DRM) into an OCAP-compliant host consumer media device. 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 and Charter. DCAS deployments can be expected to grow in the coming years, thanks to favorable regulatory view from the STELA Reauthorization Act of 2014 and FCC appointing a Downloadable Security Technical Advisory Committee, and wider support for key ladder (K-LAD) functionality from system-on-chip (SoC) vendors and set-top box manufacturers.
Card sharing, also known as control word sharing, is a method of allowing multiple clients or digital television receivers to access a subscription television network with only one valid subscription card. This is achieved by electronically sharing a part of the legitimate conditional access smart card's output data, enabling all recipients to gain simultaneous access to scrambled DVB streams, held on the encrypted television network.
TV/COM International is a company that developed the Compression NetWORKS digital broadcasting system that evolved into the current DVB-S standard for digital satellite broadcasting. It was used by the short-lived AlphaStar satellite platform for content delivery and conditional access. TV/COM was formed from the former Oak Communications in San Diego to develop its Compression NetWORKS system. The company was bought by Hyundai in 1994 and became a wholly owned subsidiary of Hyundai. The company was eventually closed and its intellectual property sold to Irdeto in The Netherlands.
Nova Telecommunication S.M.S.A. is a telecommunication company in Greece which provides broadband, television and fixed telephony. It also offers satellite services in Cyprus. It is traded on the Athens Exchange until its delisting in 2021.
Showtime Arabia was Showtime Networks' pay television service in the Middle East and North Africa. It was a joint venture between Kuwaiti holding company KIPCO and American media firm Viacom Inc.. The company was incorporated in the Cayman Islands and had its headquarters at Dubai Media City in Dubai, United Arab Emirates.
Transvision is a subscription-based direct broadcast satellite provider service for Indonesia. It is Trans Media, a subsidiary of CT Corp.
Cryptography Research, Inc. is a San Francisco based cryptography company specializing in applied cryptographic engineering, including technologies for building tamper-resistant semiconductors. It was purchased on June 6, 2011 by Rambus for $342.5M. The company licenses patents for protecting cryptographic devices against power analysis attacks. The company's CryptoFirewall-brand ASIC cores are used in pay TV conditional access systems and anti-counterfeiting applications. CRI also developed BD+, a security component in the Blu-ray disc format, and played a role in the format war between HD DVD and Blu-ray. The company's services group assists with security testing, disaster recovery, and training.
Unibox is a satellite, cable and terrestrial digital receiver. It has been distributed widely for use with Pay TV. It also enables the receiver to store digital copies of MPEG TS on internal harddisk or networked filesystems.
SAT>IP specifies an IP-based client–server communication protocol for a TV gateway in which SAT>IP servers, connected to one or more DVB broadcast sources, send the program selected and requested by an SAT>IP client over an IP based local area network in either unicast for the one requesting client or multicast in one datastream for several SAT>IP clients.
Ziggo Holding B.V. is the largest cable operator in the Netherlands, providing digital cable television, Internet, and telephone service to both residential and commercial customers.
