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OMA DRM is a Digital Rights Management (DRM) system invented by the Open Mobile Alliance whose members represent the entire value chain, including mobile phone manufacturers (e.g. Nokia, Motorola, Samsung, Sony-Ericsson, BenQ-Siemens), mobile system manufacturers (e.g. Ericsson, Siemens, Openwave), operators (e.g. Vodafone, O2, Cingular, Deutsche Telekom, Orange), and IT companies (e.g. Microsoft, IBM, Sun). In order to ensure interoperability across all implementations the OMA provides in addition to the specifications also test tools for OMA DRM. The OMA DL DRM group is chaired by Jan van der Meer (Philips) and Willms Buhse (CoreMedia). Digital rights management (DRM) is an umbrella term that refers to access control technologies used by publishers and copyright holders to limit usage of digital media or devices. ...
The Open Mobile Alliance (OMA) is a standards body which develops open standards for the mobile industry. ...
This article is about the telecommunications corporation. ...
Motorola Inc. ...
Samsung Group is one of the largest South Korean business groupings. ...
For an arrangement of Sony Ericsson products, see list of Sony Ericsson products Sony Ericsson is a joint venture established in 2001 by the Japanese consumer electronics company Sony Corporation and the Swedish telecommunications company Ericsson to make mobile phones. ...
BenQ Corporation (IPA: ; Chinese: ) is a Taiwan-based company specializing in the manufacturing of computing, communications, and consumer electronics devices. ...
For other uses, see Ericsson (disambiguation). ...
Siemens redirects here. ...
Openwave (formerly software. ...
Vodafone Group Plc is a mobile network operator headquartered in Newbury, Berkshire, England, UK. It is the largest mobile telecommunications network company in the world by turnover and has a market value of about £84. ...
O2 or O-2 may be: Oceanic Airlines (Guinea) IATA airline designator Oxygen O2 plc, a telecommunications company. ...
Cingular Wireless is the largest United States mobile phone company, with headquarters in Atlanta, Georgia, United States. ...
DTAG corporate headquarters, Bonn Deutsche Telekom AG (ISIN: DE0005557508, FWB: DTE, NYSE: DT, LSE: DEU, TYO: 9496) (English translation: German Telecom) (abbreviated DTAG) is a telecommunications company headquartered in Bonn, Germany. ...
Orange SA IPA: is a mobile network operator and an internet service provider that is a subsidiary of France Télécom. ...
Microsoft Corporation, (NASDAQ: MSFT, HKSE: 4338) is a multinational computer technology corporation with global annual revenue of US$44. ...
For other uses, see IBM (disambiguation) and Big Blue. ...
Sun Microsystems, Inc. ...
Philips HQ in Amsterdam Koninklijke Philips Electronics N.V. (Royal Philips Electronics N.V.), usually known as Philips, (Euronext: PHIA, NYSE: PHG) is one of the largest electronics companies in the world, founded and headquartered in the Netherlands. ...
The scheme is implemented on many recent phones and is intended to be used by mobile content providers to add Digital Rights Management to their products. To this date two versions of OMA DRM have been released: OMA DRM 1.0 and OMA DRM 2.0. Digital rights management (DRM) is an umbrella term that refers to access control technologies used by publishers and copyright holders to limit usage of digital media or devices. ...
- OMA DRM 1.0 - Started in November 2002 and approved in June 2004: Basic DRM standard without strong protection. Specifies three main methods: Forward Lock, Combined Delivery (combined rights object / media object), and Separate Delivery (separated rights object + encrypted media object). Forward lock prevents the user from forwarding content such as ringtones and wallpapers on their phone. The content can be distributed using e.g. HTTP or MMS.
- OMA DRM 2.0 - Started in July 2004 and approved in March 2006: Extension of the DRM 1.0 separate delivery mechanism. Each participating device in OMA DRM 2.0 has an individual DRM PKI certificate with a public key, and the corresponding private key. Each Rights Object (RO) is individually protected for one receiving device by encrypting it with the device public key. The RO in turn contains the key that is used to decrypt the media object. Delivery of Rights Objects requires a registration with the Rights Issuer (RI, the entity distributing Rights Objects). During this registration, the device certificate is usually validated against a device blacklist by means of an Online Certificate Status Protocol (OCSP) verification. Thus, devices known to be hacked can be excluded once they try to register with an RI and receive new ROs for content access.
A ringtone or ring tone is the sound made by a telephone to indicate an incoming call. ...
HTTP (for HyperText Transfer Protocol) is the primary method used to convey information on the World Wide Web. ...
For the Microsoft Media Server (MMS) protocol, see Microsoft Media Services. ...
Diagram of a public key infrastructure In cryptography, a public key infrastructure (PKI) is an arrangement that binds public keys with respective user identities by means of a certificate authority (CA). ...
The Online Certificate Status Protocol (OCSP) is an Internet protocol used for obtaining the revocation status of an X.509 digital certificate. ...
Implementations and Usage OMA DRM 1.0 has been implemented in over 550 phone models. Many mobile operators (e.g. Vodafone, SFR, Turkcell, Vivo, Orange) use OMA DRM for their content services. The first OMA DRM 2.0 implementations were released in early 2005 and on mobile phones end of 2005. Software implementations for PC and PDA clients are also available. Most of the ringtones pre-installed on mobile phones have implemented DRM. Many commercial ringtone vendors who are not part of any mobile phone carrier do not bother with any form of DRM, perhaps because the number of ringtone vendors is huge, and people will choose to download unprotected ringtones if they can get them. Unlike with digital music stores such as iTunes the record industry does not mandate that DRM be implemented on ringtones. Many ringtones are reverse engineered by the ringtone provider themselves so it is their choice whether to implement the DRM. SFR (originally Société Française de Radiotéléphonie, no longer expanded) is a French mobile phone company. ...
// Turkcell (NYSE: TKC) is a mobile phone operator in Turkey, currently the countrys largest. ...
VIVO is an acronym for Video In Video Out, which is commonly pronounced Vee-Voe, but other pronounciations are in use. ...
Orange SA IPA: is a mobile network operator and an internet service provider that is a subsidiary of France Télécom. ...
This article is about the iTunes application. ...
Broadcast Services Security issues with DRM Profile Broadcast services requirements being completely different from VOD, OMA BCAST Smartcard profile has been recommended by all the industries to be the unified standard used for Mobile TV broadcast.
Commercial OMA DRM providers include:
An open source solution for OMA DRM 2.0 is also available:
The OMA DRM specification uses a Profile of the Open Digital Rights Language for expressing its Licenses: Since 2006, OMA has been working on DRM 2.0.1 and 2.1, and on new features such as SRM (Secure Removable Media) and SCE (Secure Content Exchange)
Determining that a file is OMA protected A ringtone that includes OMA Forward Lock DRM usually has a ".asp" file extension, however this is more of a detail of the servers hosting the content as ".dm" and ".drm" will tend to actually be more common. This file could potentially be viewed before downloading the actual file as kind of a confirmation request on downloading data. However, with most of today's implementations at this point it is usually too late for denial and the user would already have been billed for the ringtone. The file extension does not matter for Nokia phones, so it is possible that they may use an extension other than .asp. A filename extension or filename suffix is an extra set of (usually) alphanumeric characters that is appended to the end of a filename to allow computer users (as well as various pieces of software on the computer system) to quickly determine the type of data stored in the file. ...
On Nokia Series 40 phones an installed file with DRM will not have its "Send" option greyed out in its options menu. If the user attempts to send this via MMS a message "The file is copyright protected" will appear. A Bluetooth file transfer will fail if the user tries to extract the file using Bluetooth, yet the file will still appear as present and will still be deletable via Bluetooth. This article is about the telecommunications corporation. ...
Bluetooth logo This article is about the electronic protocol named after Harald Bluetooth Gormson. ...
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