ISPs

Deep Packet Inspection Canada

/ Christopher Parsons

Last week my advisor, Dr. Colin Bennett, and I launched a new website that is meant to provide Canadians with information about how their Internet Service Provider (ISP) monitors data traffic and manages their network. This website, Deep Packet Inspection Canada, aggregates information that has been disclosed on the public record about how the technology is used, why, and what uses of it are seen as ‘off limits’ by ISPs. The research has been funded through the Office of the Privacy Commissioner of Canada’s contributions program.

Deep packet inspection is a technology that facilitates a heightened awareness of what is flowing across ISP networks. It has the ability to determine the protocols responsible for shuttling information to and from the Internet, the applications that are used in transmitting the data, and (in test conditions) can even extract elements of data from the application layer of the data traffic in real time and compare it against other packet signatures to block particular data flows based on the content being accessed. Additionally, the technology can be used to modify packet flows using the technology – something done by Rogers – but it should be noted that DPI is not presently used to prevent Canadians from accessing particular content on the web, nor is it stopping them from using P2P services to download copywritten works.

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Choosing Winners with Deep Packet Inspection

/ Christopher Parsons

I see a lot of the network neutrality discussion as one surrounding the conditions under which applications can, and cannot, be prevented from running. On one hand there are advocates who maintain that telecommunications providers – ISPs such as Bell, Comcast, and Virgin – shouldn’t be responsible for ‘picking winners and losers’ on the basis that consumers should make these choices. On the other hand, advocates for managed (read: functioning) networks insist that network operators have a duty and responsibility to fairly provision their networks in a way that doesn’t see one small group negatively impact the experiences of the larger consumer population. Deep Packet Inspection (DPI) has become a hot-button technology in light of the neutrality debates, given its potential to let ISPs determine what applications function ‘properly’ and which see their data rates delayed for purposes of network management. What is often missing in the network neutrality discussions is a comparison between the uses of DPI across jurisdictions and how these uses might impact ISPs’ abilities to prioritize or deprioritize particular forms of data traffic.

As part of an early bit of thinking on this, I want to direct our attention to Canada, the United States, and the United Kingdom to start framing how these jurisdictions are approaching the use of DPI. In the process, I will make the claim that Canada’s recent CRTC ruling on the use of the technology appears to be more and more progressive in light of recent decisions in the US and the likelihood of the UK’s Digital Economy Bill (DEB) becoming law. Up front I should note that while I think that Canada can be read as ‘progressive’ on the network neutrality front, this shouldn’t suggest that either the CRTC or parliament have done enough: further clarity into the practices of ISPs, additional insight into the technologies they use, and an ongoing discussion of traffic management systems are needed in Canada. Canadian communications increasingly pass through IP networks and as a result our communications infrastructure should be seen as important as defence, education, and health care, each of which are tied to their own critical infrastructures but connected to one another and enabled through digital communications systems. Digital infrastructures draw together the fibres connecting the Canadian people, Canadian business, and Canadian security, and we need to elevate the discussions about this infrastructure to make it a prominent part of the national agenda.

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Draft – Deep Packet Inspection: Privacy, Mash-ups, and Dignities

/ Christopher Parsons

This is a draft of the paper that I’ll be presenting at the Counter: Piracy and Counterfeit conference in Manchester in a few days. It’s still rough around some edges, but feels like a substantial piece. Comments, as always, are welcome.

Abstract:

Privacy operates as an umbrella-like concept that shelters liberal citizens’ capacity to enjoy the autonomy, secrecy, and liberty, values that are key to citizens enjoying their psychic and civil dignity. As digitisation sweeps through the post-industrial information economy, these same citizens are increasingly sharing and disseminating copywritten files using peer-to-peer file sharing networks. In the face of economic challenges posed by these networks, some members of the recording industries have sought agreements with Internet Service Providers (ISPs) to govern the sharing of copywritten data. In Britain, file-sharing governance has recently manifested in the form of Virgin Media inserting deep packet inspection (DPI) appliances into their network to monitor for levels of infringing files. In this presentation, I argue that ISPs and vendors must demonstrate technical and social transparency over their use of DPI to assuage worries that communications providers are endangering citizens’ psychic and civil dignities. Drawing on recent Canadian regulatory processes concerning Canadian applications of DPI, I suggest that transparency between civil advocacy groups and ISPs and vendors can garner trust required to limit harms to citizens’ psychic dignity. Further, I maintain that using DPI appliances to detect copyright infringement and apply three-strikes proposals unduly threatens citizens’ civil dignities; alternate governance strategies must be adopted to preserve citizens’ civil dignity.

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Deep Packet Inspection and Mobile Discrimination

/ Christopher Parsons / 1 Comment

Throughout the 2009 Canadian Telecommunications Summit presenter after presenter, and session after session, spoke to the Canadian situation concerning growth in mobile data. In essence, there is a worry that the wireless infrastructure cannot cope with the high volumes of data that are expected to accompany increasing uses and penetrations of mobile technologies. Such worries persist, even though we’ve recently seen the launch of another high-speed wireless network that was jointly invested in by Bell and Telus, and despite the fact that new wireless competitors are promising to enter the national market as well.

The result of the wireless competition in Canada is this: Canadians actually enjoy pretty fast wireless networks. We can certainly complain about the high costs of such networks, about the conditions under which wireless spectrum was purchased and is used, and so forth, but the fact is that pretty impressive wireless networks exist…for Canadians with cash. As any network operator knows, however, speed is only part of the equation; it’s just as important to have sufficient data provisioning so your user base can genuinely take advantage of the network. It’s partially on the grounds of data provisioning that we’re seeing vendors develop and offer deep packet inspection (DPI) appliances for the mobile environment.

I think that provisioning is the trojan horse, however, and that DPI is really being presented by vendors as a solution to a pair of ‘authentic’ issues: first, the need to improve customer billing, and second, to efficiently participate in the advertising and marketing ecosystem. I would suggest that ‘congestion management’, right now, is more of a spectre-like issue than an authentic concern (and get into defending that claim, in just a moment).

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IPv6 and the Future of Privacy

/ Christopher Parsons / 5 Comments

There is an increasing urgency to transition to a new infrastructure for addressing space on the Internet, and in this space all individuals and their devices could be uniquely identifiable by their Internet Protocol (IP) address(es). It is in light of this surveillant future that France’s recent ruling that IP addresses are not personally identifiable information is so serious. Further, it is with this longer temporal viewpoint (i.e. not just the here and now) that has more generally worried technologists about governmental rulings concerning binary ‘yes/no IP addresses are private information’.

Before I go any further, let me break down what an IP address is, the distinctions between versions 4 (IPv4) and 6 (IPv6), and then get to the heart of the privacy-related issues concerning the transition to IPv6. The technical infrastructure of the ‘net tends to be seen as dreadfully boring but, as is evidenced by the (possible) computer failures of Toyota vehicles, what goes on ‘under the hood’ of the ‘net is of critical importance to understand and think about. It’s my hope that you’ll browse away with concerns and thoughts about the future of privacy in an increasingly connected biodigital world.

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Dispelling FUD: Iran and ISP Surveillance

/ Christopher Parsons / 8 Comments

Since the election of incumbent president Mahmoud Ahmadinejad, the world has witnessed considerable political tension in Iran. Protests over the questionable electoral results, beatings and deaths of political protestors, recurring protests by Iranians associated with the Green Revolution, and transmissions of information amongst civil- and global-actors have been broadcast using contemporary communications systems. Twitter, blogs, Facebook, and mobile phone video has enabled Iranians to coordinate, broadcast, and receive information. The existence of Web 2.0 infrastructure has set the conditions under which the Green Revolution operates.

The Iranian government quickly recognized the power of cheap social coordination technologies and, in response, drastically reduced the capacity of national Internet links – the government, in effect, closed the nation’s Internet faucet, which greatly reduced how quickly data could be transmitted to, and received from, the ‘net as a whole. This claim is substantiated by Arbor Networks’ (Internet) border reports, which demonstrate how, immediately after the presidential election, there was a plummet in the data traffic entering and exiting the nation. (It should be noted that Arbor is a prominent supplier of Deep Packet Inspection equipment.)

Prior to trying to dispel the Fear, Uncertainty, and Doubt (FUD) surrounding the contemporary Iranian ISP-surveillance system that is regularly propagated by the media, I need to give a bit of context on the telecommunications structure in Iran.

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