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IP: Digital rights and wrongs
From: Dave Farber <farber () cis upenn edu>
Date: Tue, 03 Aug 1999 05:40:14 -0400
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Date: Tue, 3 Aug 1999 05:34:15 +0200 (CEST)
From: Anonymous <nobody () replay com>
Subject: Digital rights and wrongs
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[This is from the 07/17/99 issue of The Economist magazine]
Digital rights and wrongs
Computers were supposed to be threatening copyright. Instead, they may end up
making it stronger
Digital rights and wrongs
INTELLECTUAL-PROPERTY law Òcannot be patched, retrofitted or expanded
to contain digitised expression,Ó wrote John Perry Barlow, co-founder of the
Electronic Frontier Foundation, an online lobbying group, in an influential essay.
ÒDigital technology is detaching information from the physical plane, where
property law of all sorts has always found definition...The bottle was protected,
not the wine.Ó
It now looks as if he was wrong. A lot of people still want to protect their
electronic wine. More than a dozen companies are rolling out so-called
digital-rights-management systems to do just that. These systems are
complicated pieces of software that could, if widely deployed, not only establish
property rights in the digital domain, but also strengthen the power of publishers.
Some firms focus on only one form of intellectual content. AT&T , Liquid Audio
and Microsoft are offering protection for online music; NextPageÕs Folio and
XeroxÕs ContentGuard protect electronic documents. But other companies, such
as IBM, Intertrust Technologies, SoftLock and Wave Systems, have developed
systems designed to protect an even wider range of digital works.
As a flavour of what is to come, on July 13th, the Secure Digital Music Initiative
( SDMI ), a global coalition of more than 110 music, consumer-electronics and
computer firms, published its standard for future players of online music files.
Besides blocking the playing of illegal copies of newly released songs, these
devices are supposed to understand predetermined digital-usage rights. The
schemeÕs ÒdefaultÓ setting is that people should not be able to own more than
four copies of a piece of music for personal use without paying extra. Nor
should they be able to distribute them over the Internet.
This is only the first step. Some time next year, SDMI hopes to settle on a
standard for a comprehensive digital-rights system. This would let music
publishers Òslice and diceÓ their copyright. They could decide, for example,
how often consumers would be allowed to play a song, how many copies they
could make of it and if they should be able to upload it on to an Internet server.
It is easy to see why the recording industry, and owners of other types of
ÒcontentÓ, are keen on digital-rights-management systems. Besides ensuring
these owners were paid for their products, the technology would let them market
their digital wares in entirely new ways, such as so-called ÒsuperdistributionÓ.
This novel retailing tactic is meant to allow people to distribute copyright material
freely to others. But before those others can actually play or view it, it will
automatically Òphone homeÓ to a special Internet clearing-house to arrange for
the payment of a suitable fee.
Mine, all mine
Digital-rights-management systems are built around a concept that Mark Stefik,
principal scientist at XeroxÕs Palo Alto Research Centre, calls Òtrusted
systemsÓ. The term refers to computers that can be relied upon to follow rules
set by a publisher. If the copying of a digital work is not allowed, for instance,
such a device will refuse to make a duplicate.
The best way to do this is to control both the software and the hardware.
Machine-readable ÒtagsÓ in the software are then used to represent particular
rightsÑsuch as the right to print something, or to transfer it to another
deviceÑthat the hardware can interpret. When a piece of content is loaded into a
trusted device, it checks the associated digital rules and acts accordingly.
One primitive example of such an arrangement is the digital audio tape recorder,
which will not make copies from copies. Another is the pay-per-view digital
videodisc. Neither of these, however, has been a startling commercial success.
That is at least partly because many people do not want to buy specific bits of
hardware for particular applications. They would rather rely on a
general-purpose and, from a copyright holderÕs point of view, highly
untrustworthy device: the personal computer.
Protection from PC s is what designers of digital-rights-management systems see
as the Òkiller applicationÓ for their technology. All attempts to do it make
extensive use of cryptographyÑcreating, to push Mr BarlowÕs analogy a stage
further, a virtual bottle for the digital wine. IBM calls this container a Cryptolope
(short for Òcryptographic envelopeÓ). Intertrust dubs it a DigiBox. These
containers work because, although you can examine their contents if you have
the right key, you cannot actually take the contents out to copy them. Instead,
you are restricted to whatever operations your key permits.
Most systems for PC s require the installation of special software that acts as a
sort of electronic notary. It checks a userÕs identity, looks up his rights, contacts
a financial clearing-house to arrange payment and, if everything is in order,
decrypts the digital work. In some schemes, users also need a special viewer or
player program that is deemed to be secureÑmeaning, for example, that the
printing function is disabled if a particular userÕs rights do not include printing.
There are other differences between the various systems on offer. Some require
users to be connected to the Internet while they are viewing a file that they have
purchased. Some keep files and rights separate, so that the latter can be updated
even after a product has been distributed. But the main difference is the degree of
choice that their rights-management offers.
The most ambitious scheme so far is IntertrustÕs technology. It allows creators,
publishers and distributors to attach not just usage rights to their content, but
business rules such as tailored pricing. With a software tool called Commerce
Modeler, content creators can, for example, permit users to get discounts for a
song if they also buy tickets to a particular concert.
All this technology creates plenty of opportunities for new sorts of
interactive-service provider. In particular, online clearing-houses will be needed
to record data on who is using what, and then to arrange suitable financial
transactions. One likely contender in this field is Reciprocal, a firm that already
has deals with several big record companies. Another is PublishOne, which
provides a similar service for electronic publishers of such things as business
reports.
Indeed, PublishOneÕs business plan is a good example of how
digital-rights-management systems may work in practice. When a publisher
uploads its content on to one of the companyÕs computers, it sets the price and
defines, for example, whether the product can also be saved or printed by any
user who wants to buy the right to look at it. PublishOne then pops it in an
appropriate digital container and publishes it on one of its partner websites.
Buyers need to register with a financial clearing-house and download the
necessary software to open the container and reveal the goodies inside.
All of which sounds excellent news for brain-workers who wish to sell the fruits
of their labours. Whether it will turn out that way, however, depends on two
groups: customers, who may have got used to the current, lax regime, and
techno-anarchists, who think all software should be free.
Intellectual property is theft
If rights-management software can truly be made secure, customers may have no
choice but to stump up. The issue will, in any case, be fought out in the
marketplace. But that security is by no means guaranteed. Hackers love a
challenge, and hacking into such software is just the sort of challenge that many
of them like best. And because of their belief in freedom-of-software, their
solutions will, no doubt, be made freely available.
That, according to Dr Stefik, means that rights-management systems based
purely on software are, in the end, unlikely to be sufficient. He thinks extra
hardware will be needed, too. This will probably be built into future generations
of PC s in the form of a so-called copyright chip (©-chip) such as the one
developed by Wave Systems. This is a hard-wired, and therefore tamper-proof,
substitute for some of the software in more orthodox systems. But since the
©-chip will not actually be a separate piece of kit, customer resistance should be
reduced. That, with luck, will eliminate the freeloaders.
Even legitimate users, however, have some concerns. One of the most important
is privacy. Digital-rights management, particularly the sort that refers each
transaction to a third party, produces enormous amounts of Òinformation
exhaustÓ, as Intertrust puts it. The company sees this as a good thing. Its
products, it boasts, can track such Òusage data as the time when a customer plays
an interactive game, or even invokes specific modules in a game.Ó Many people,
however, will not regard that as such a great idea. They would rather keep their
games-playing habitsÑand other thingsÑsecret.
Civil libertarians will not like the technology either, because it would create new
boundaries in cyberspace by restricting the flow of informationÑa feature that
many executives and politicians might, on the contrary, rather like. Companies
often want only a limited group of employees to have access to informationÑto
material that contains trade secrets, for instance. And many countries control
which categories of works, or ideas, can be sold.
Legal experts are also wary of these systems. They fear that copyright holders
will be left with too much powerÑwhereas the rights of such consumers as
librarians and scientists to Òdeal fairlyÓ with intellectual property, will, in effect,
be abolished. Software code, warns Lawrence Lessig, a law professor at Harvard,
could replace legal code.
After repeatedly strengthening the rights of copyright holders in the face of new
technology, therefore, governments may begin to think about protecting the
consumers of intellectual propertyÑperhaps by limiting what
digital-rights-management systems can do. Mr Lessig observes that the day may
soon dawn when students are taught not of ÒcopyrightÓ but ÒcopydutyÓÑthe
legal obligation of copyright holders to provide public access.
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