Reviews

Released: Literature Review of Deep Packet Inspection

/ Christopher Parsons

Scholars and civil advocates will be meeting next month in Toronto at the Cyber-surveillance in Everyday Life workshop. Participants will critically interrogate the surveillance infrastructures pervading daily life as well as share experiences, challenges, and strategies meant to to rein in overzealous surveillance processes that damage public and private life. My contribution to the workshop comes in the form of a modest overview of literature examining Deep Packet Inspection. Below is an abstract, as well as a link to a .pdf version on the review.

Abstract

Deep packet inspection is a networking technology that facilitates intense scrutiny of data, in real-time, as key chokepoints on the Internet. Governments, civil rights activists, technologists, lawyers, and private business have all demonstrated interest in the technology, though they often disagree about what constitutes legitimate uses. This literature review takes up the most prominent scholarly analyses of the technology. Given Canada’s arguably leading role in regulating the technology, many of its regulator’s key documents and evidentiary articles are also included. The press has been heatedly interested in the technology, and so round out the literature review alongside civil rights advocates, technology vendors, and counsel analyses.

Downloadable .pdf version of the literature review.

Review: Surveillance or Security?

/ Christopher Parsons / 1 Comment

surveillance-or-security-the-risks-posed-by-new-wiretapping-technologiesIn Security or Security? The Real Risks Posed by New Wiretapping Technologies, Susan Landau focuses on the impacts of integrating surveillance systems into communications networks. Her specific thesis is that  integrating surveillance capacities into communications networks does not necessarily or inherently make us more secure, but may introduce security vulnerabilities and thus make us less secure. This continues on threads that began to come together in the book she and Whitfield Diffie wrote, titled Privacy on the Line: The Politics of Wiretapping and Encryption, Updated and Expanded Edition.

Landau’s work is simultaneously technical and very easy to quickly read. This is the result of inspired prose and gifted editing. As a result, she doesn’t waver from working through the intricacies of DNSSEC, nor how encryption keys are exchanged or mobile surveillance conducted, and by the time the reader finishes the book they will have a good high-level understanding of how these technologies and systems (amongst many others!) work. On the policy side, she gracefully walks the reader through the encryption wars of the 1990s,[1] as well as the politics of wiretapping more generally in the US. You don’t need to be a nerd to get the tech side of the book, nor do you need to be a policy wonk to understand the politics of American wiretapping.

Given that her policy analyses are based on deep technical understanding of the issues at hand, each of her recommendations carry a considerable amount of weight. As examples, after working through authentication systems and their deficits, she differentiates between three levels of online identification (machine-based, which relies on packets; human, which relies on application authentication; and digital, which depends on biometric identifiers). This differentiation lets her  consider the kinds of threats and possibilities each identification-type provides. She rightly notes that the “real complication for attribution is that the type of attribution varies with the type of entity for which we are seeking attribution” (58). As such, totalizing identification systems are almost necessarily bound to fail and will endanger our overall security profiles by expanding the surface that attackers can target.

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Review of Telecommunications Policy in Transition

/ Christopher Parsons / 1 Comment

Image courtesy of the MIT Press

This first: the edited collection is a decade old. Given the rate that communications technologies and information policies change, this means that several of the articles are…outmoded. Don’t turn here for the latest, greatest, and most powerful analyses of contemporary communications policy. A book published in 2001 is good for anchoring subsequent reading into telecom policy, but less helpful for guiding present day policy analyses.

Having said that: there are some genuine gems in this book, including one of the most forward thinking essays around network neutrality of the past decade by Blumenthal and Clark. Before getting to their piece, I want to touch on O’Donnell’s contribution, “Broadband Architectures, ISP Business Plans, and Open Access”. He reviews architectures and ISP service portfolios to demonstrate that open access is both technically and economically feasible, though acknowledges that implementation is not a trivial task. In the chapter he argues that the FCC should encourage deployment of open access ready networks to reduce the costs of future implementation; I think it’s pretty safe to say that that ship sailed by and open connection is (largely) a dead issue in the US today. That said, he has an excellent overview of the differences between ADSL and Cable networks, and identifies the pain points of interconnection in each architecture.

Generally, O’Donnell sees interconnection as less of a hardware problem and more of a network management issue. In discussing the need and value of open access, O’Donnell does a good job at noting the dangers of throttling (at a time well ahead of ISP’s contemporary throttling regimes), writing

differential caching and routing need not be blatant to be effective in steering customers to preferred content. The subtle manipulation of the technical performance of the network can condition users unconsciously to avoid certain “slower” web sites. A few extra milliseconds’ delay strategically inserted here and there, for example, can effectively shepard users from one web site to another (p53).

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Review of Wired Shut: Copyright and the Shape of Digital Culture

/ Christopher Parsons

Image courtesy of the MIT PressGillespie argues that we must examine the technical, social-cultural, legal and market approaches to copyright in order to understand the ethical, cultural, and political implications of how copyrights are secured in the digital era. Contemporary measures predominantly rely on encryption to survey and regulate content, which has the effect of intervening before infringement can even occur. This new approach is juxtaposed from how copyright regulation operated previously: individuals were prosecuted after having committing copyright infringement. The shift to pre-regulation treats all users as criminals, makes copyright less open to fair use, renders opposition to copyright law through civil disobedience as challenging, and undermines the sense of moral autonomy required for citizens to recognize copyright law’s legitimacy. In essence, the assertion of control over content, facilitated by digital surveillance and encryption schemes, has profound impacts on what it means to be, and act as, a citizen in the digital era.

This text does an excellent job at working through how laws such as the Digital Millennium Copyright Act (DMCA), accompanied by designs of technologies and the political efforts of lobbyists, have established a kind of ‘paracopyright’ regime. This regime limits uses that were once socially and technically permissible, and thus is seen as undermining long-held (analogue-based) notions of what constitutes acceptable sharing of content and media. In establishing closed trusted systems that are regulated by law and received approval from political actors content industries are forging digitality to be receptive to principles of mass-produced culture.

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Review: Internet Architecture and Innovation

/ Christopher Parsons

Internet_Architecture_and_Innovation_coverI want to very highly recommend Barbara van Schewick’s Internet Architecture and Innovation. Various authors, advocates, scholars, and businesses have spoken about the economic impacts of the Internet, but to date there hasn’t been a detailed economic accounting of what may happen if/when ISPs monitor and control the flow of data across their networks. van Schewick has filled this gap by examining “how changes in the Internet’s architecture (that is, its underlying technical structure) affect the economic environment for innovation” and evaluating “the impact of these changes from the perspective of public policy” (van Schewick 2010: 2).

Her book traces the economic consequences associated with changing the Internet’s structure from one enabling any innovator to design an application or share content online to a structure where ISPs must first authorize access to content and design key applications  in house (e.g. P2P, email, etc). Barbara draws heavily from Internet history literatures and economic theory to buttress her position that a closed or highly controlled Internet not only constitutes a massive change in the original architecture of the ‘net, but that this change would be damaging to society’s economic, cultural, and political interests. She argues that an increasingly controlled Internet is the future that many ISPs prefer, and supports this conclusion with economic theory and the historical actions of American telecommunications corporations.

van Schewick begins by outlining two notions of the end-to-end principle undergirding the ‘net, a narrow and broad conception, and argues (successfully, in my mind) that ISPs and their interrogators often rely on different end-to-end understandings in making their respective arguments to the public, regulators, and each other.

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Review: Apple iPad

/ Christopher Parsons

I pre-ordered the iPad  as soon as I could and unpacked it the day that I returned from a trip to South America (that saw me miss its actual delivery). I’ve had the device for over a month now, have been actively using it, and wanted to offer my impressions. Those impressions, I will note, are significantly conditioned by the reasons that I bought the device, which I’ll outline. I’ll first briefly address the actual hardware and operating system of the device, then move to what I like and dislike about the product. Ultimately, I’m happy with the device and have absolutely no regrets in getting this particular first-gen Apple product.

The screen, ergonomics, and weight are all fine. It’s using an IPS-LCD, which means that viewing angles are good and colour reproduction is pretty faithful. While some have criticized the back for being slightly rounded, it hasn’t bothered me in any way, nor has the weight of 1.5lbs struck me as ‘heavy’ though the device is heavier than appearances might lead one to believe. There is a bezel surrounding the screen itself and it makes sense: I can rest my hands on the non-interactive bezel without affecting whatever I’m displaying on the screen. This is a good thing. the iPad has the same touch interface as the iPhone and iPod Touch. This makes the iPad simple to use, if lacking any deviant features from those earlier devices (and, with the release of iOS 4, the iPad actually has slightly fewer features than the iPhone or Touch). In light of its use of the older 3.2 release of the OS, the iPad is horrible if you rely on multiple windows being open to get work done and is a poor choice for any content producer looking to do a lot of work on it that will see you flipping between a document/content production editor and the web. In effect, anyone who’s tried doing intensive content production on the iPhone or Touch will largely encounter the same old problems here. I’m not saying that you can’t do such production, but it’s far less convenient than on a full desktop/notebook or even netbook. On the upside: the device is light and battery life is good (I tend to go for 36-72 hours without needing to plug in, with moderate to heavy use each day).

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