THE MARKET, THE OPPORTUNITIES AND SYMBIAN S PLANS in Java

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The second phase of OMA DRM should be nalized by the middle of 2004. It will offer more security, making it suitable for higher value content. It will encrypt both the rights object and the content encryption key with the phone s public key, binding them to the phone. Both the content and the rights object will protected against tampering through the use of hash keys. Symbian provides APIs for the OMA DRM Version 1 speci cation. Content publishing tools for use with the Nokia 6600 and Sony Ericsson P800 and P900 are available from the respective manufacturer s website.
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8.8 The Java Veri ed Program
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The Java Veri ed program (www.javaveri ed.com) is intended to test the basic functionality of a MIDlet: does it start, does it stop and exit gracefully, does it hog bandwidth or other resources It does not check conformance with corporate branding, nor does a pass or fail depend on whether or not the MIDlet is socially acceptable, though unacceptable content will not be allowed to use the Java logo. The members of the program are Sun, Motorola, Nokia, Siemens and Sony Ericsson. Sun host a portal where developers can register information about the MIDlet they want veri ed. The program will not generate revenue, indeed the only transactions are between the developer and the test house (the website provides details of test houses and pricing). Most of the veri cation can be carried out by the test house and this is where most of the work has to be done. However, the last 10 % is carrier-speci c, e.g. the type of download server, billing wrapper, or any DRM implementation. The scope of the program is currently limited: it is for untrusted MIDlets only and is aimed at the service provider, operator, or aggregator who wants to provision the MIDlet. The provider receives the MIDlet encrypted and uses a public key supplied by the program to decrypt it before publishing it. The provider is thus assured that the MIDlet has been through the Java Veri ed program, that the author is who he claims to be and that the MIDlet has not been tampered with since testing. The end-user downloads the unencrypted MIDlet to a mobile phone and may have no knowledge that the MIDlet has been through the program. This is in contrast to the Symbian signing program for native applications, which delivers signed MIDlets to the mobile phone. It is to be hoped that in the near future the program will create a Public Key Infrastructure (PKI) that will be agreed by all parties: operators, mobile phone manufacturers and developers. This will provide a signing mechanism so that developers can create trusted, signed, MIDlets that can offer more interesting services.
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8.9 Beyond Advanced Consumer Services
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We ve talked about services mainly in the context of a client running on a mobile phone talking to back-end services (JSR 172 will be important in delivering such services). However there is potentially a bigger opportunity for what might be called ubiquitous services , where services are provided by many small embedded devices such as home appliances, drinks machines, teller services, even light switches. The service might be executed on the device, or loaded onto the mobile phone and run as a MIDlet. There is also no reason why mobile phones themselves cannot host and share services. To achieve these ubiquitous services we need an infrastructure that covers: service registration: the ability to register a service for discovery by other devices, mobile or otherwise service discovery: this could be by the user searching through a browser type interface, or by an application searching for a particular type of service remote service access: this can be achieved by JSR 172 and SOAP (though SOAP may require too much bandwidth for wireless networks) service lifecycle: existing technologies are probably adequate for service start up (e.g. push technology from Bluetooth, WAP or MIDP), however, many services will be transient and should be deleted after use; this would have to handled by the system AMS, perhaps in response to a message transfer of executable content: once a service has been discovered, it can be transferred as a MIDlet using OTA-type protocols and executed on the mobile phone. OSGi provides a partial answer (see, for instance, Mobile Operational Management (JSR 232)). However, this is a very heavyweight option and is only applicable to CDC. The Bluetooth discussion in Section 8.6.2.1 gives an idea of how we can enable ubiquitous services today or in the near future.
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