Category: Digital Infrastructure & Platforms
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New Jersey Takes Up Net Neutrality: A Summary, and My Experiences as a Witness
On Monday afternoon, I testified before the New Jersey State Assembly Committee on Science, Technology, and Innovation, which is chaired by Assemblyman Andrew Zwicker, who also happens to represent Princeton’s district. On the committee agenda were three bills related to net neutrality. Let’s quickly review the recent events. In December 2017, the Federal Communications Commission…
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Blockchain: What is it good for?
Blockchain and cryptocurrencies are surrounded by world-historic levels of hype and snake oil. For people like me who take the old-fashioned view that technical claims should be backed by sound arguments and evidence, it’s easy to fall into the trap of concluding that there is no there there–and that blockchain and cryptocurrencies are fundamentally useless.…
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Software-Defined Networking: What’s New, and What’s New For Tech Policy?
The Silicon Flatirons Conference on Regulating Computing and Code is taking place in Boulder. The annual conference addresses a range of issues at the intersection of technology and policy and provides an excellent look ahead to the tech policy issues on the horizon, particularly in telecommunications. I was looking forward to yesterday’s panel on “The…
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How have In-Flight Web Page Modification Practices Changed over the Past Ten Years?
When we browse the web, there are many parties and organizations that can see which websites we visit, because they sit on the path between web clients (our computers and mobile devices), and the web servers hosting the sites we request. Most obviously, Internet Service Providers (ISPs) are responsible for transmitting our web traffic, but…
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Why the FCC should prevent ISPs from micromanaging our lives
Why the FCC should prevent ISPs from micromanaging our lives by Brett Frischmann and Evan Selinger* Network neutrality prevents broadband Internet service providers from micromanaging our lives online. Constraining the networks this way enables and even empowers Internet users to be active and productive human beings rather than passive consumers. Unfortunately, the network neutrality debate…
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Blockchains and voting
I’ve been asked about a number of ideas lately involving voting systems and blockchains. This blog piece talks about all the security properties that a voting system needs to have, where blockchains help, and where they don’t. Let’s start off a decade ago, when Daniel Sandler and I first wrote a paper saying blockchains would be…
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BlockSci: a platform for blockchain science and exploration
The Bitcoin blockchain — currently 140GB and growing — contains a massive amount of data that can give us insights into the Bitcoin ecosystem, including how users, businesses, and miners operate. Today we’re announcing BlockSci, an open-source software tool that enables fast and expressive analysis of Bitcoin’s and many other blockchains, and an accompanying working…
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When the cookie meets the blockchain
Cryptocurrencies are portrayed as a more anonymous and less traceable method of payment than credit cards. So if you shop online and pay with Bitcoin or another cryptocurrency, how much privacy do you have? In a new paper, we show just how little. Websites including shopping sites typically have dozens of third-party trackers per site.…
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Breaking, fixing, and extending zero-knowledge contingent payments
The problem of fair exchange arises often in business transactions — especially when those transactions are conducted anonymously over the internet. Alice would like to buy a widget from Bob, but there’s a circular problem: Alice refuses to pay Bob until she receives the widget whereas Bob refuses to send Alice the widget until he…
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Innovation in Network Measurement Can and Should Affect the Future of Internet Privacy
As most readers are likely aware, the Federal Communications Commission (FCC) issued a rule last fall governing how Internet service providers (ISPs) can gather and share data about consumers that was recently rolled back through the Congressional Review Act. The media stoked consumer fear with headlines such as “For Sale: Your Private Browsing History” and comments…