The ‘Digital Battery’ Budd, T. A. “Protecting and Managing Electronic Content with a Digital Battery” IEEE Computer pp 24 -30 August 2001 Presented by Iain Phillips
Overview High-level concept for a digital rights management (DRM) system. Based on a hardware token dubbed a ‘digital battery’. Other schemes try to prevent reproduction or restrict use. This does neither.
Overview Similarities to real battery: Limited lifetime. Not linked to content. Cheap and easy to acquire. Essential to operation of device. Can be used for Music, Video, Print Media, Web Browsing etc.
Goals Makes unauthorized duplication impossible or at least extremely difficult. Tracks each use of a given work while ensuring the user’s anonymity. Can be implemented inexpensively and remain transparent to the consumer.
Possible Implementation Digital Battery Watermark Stored Decryption Compliant Device Encrypted, Watermarked Content (still watermarked)
Appreciative Comments Effectively conveys the paradigm shift necessary for consumers to embrace the technology.
Appreciative Comments Closer fit to the modern ‘Intellectual Property’ view of content. Greater opportunity for new artists.
Critical Comments 48 hr Video Example. “consumers failed to embrace the technology, partly because people dislike the idea of paying for a product they cannot freely reuse. ” Yet Budd is also proposing a system in which people cannot freely reuse their purchase.
Critical Comments “Even if such an attack were possible, if consumers can access the contents through legitimate means more easily and quickly than they can access pirated information, they are likely to do the easy thing. ” Not in my experience!
Critical Comments “Ironically, the hacker faces the same economic challenge currently facing legitimate industries: ensuring that revenue returns to the creator after the artifact’s release. ” But most hackers are not in it for the money.
Summary Well written paper presenting a conceptual solution to a difficult problem. No technical detail and little analysis of feasibility. Some unrealistic assumptions.
Question Would you buy a music player that required you to pay for content on a per-use basis?
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