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Attack of the week: FREAK (or 'factoring the NSA for fun and profit')
This is the story of how a handful of cryptographers ‘hacked’ the NSA. It’s also a story of encryption backdoors, and why they never quite work out the way you want them to. But I…
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Against DNSSEC
10 years later and still unrebutted: DNSSEC is pageantry, it's not security, which is why so few security teams deploy it.
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How New Long-Range Radios Will Change the Internet of Things
New radios that combine miles of range with years of battery life are changing the way we build and use connected devices. Here’s how.
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How Tor Works: Part One
Security and Programming Blog
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Hacking Team and a case of BGP hijacking
After just a few hours the Hacking Team emails archive has already provided many tasty leaks. I want to focus on a routing security issue since this is my main research activity for this year.
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How to Download a List of All Registered Domain Names
Security and Programming Blog
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UDP and me
David P. Reed has transferred the domain reed.com to Reed Online Ltd. Links relating to the work of David P.Reed should be updated to point to URLs at www.deepplum.com. If you have arrived at this web page by following a link in another website, blog, etc., you can find the desired web page by substituting deepplum…
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The sad state of SMTP encryption
This is a quick recap of why I’m sad about SMTP encryption. It explains how TLS certificate verification in SMTP is useless even if you force it.
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What happens when DNS in China is poisoned and pointed at your server
I’ve been using the Internet in one form or another since the mid-80’s. In that time, I’ve seen a lot of strange stuff happening on our global network. On Tuesday, I experienced something extraordinary. It all started with a text message from my partner Ged at 8:30 AM: Mail server down. Please take a look […]
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System design implications of declining network latency vs. disk latency
Hardware performance “obviously” affects software performance and affects how software is optimized. For example, the fact that caches are multiple orders of magnitude faster than RAM means that blocked array accesses give better performance than repeatedly striding through an array.
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The day I was DoSed by Google
I launched my startup this week. On a very modest scale, no debauched parties or penthouse offices on scads of VC money, just me and ...
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AT&T Hotspots: Now with Advertising Injection
While traveling through Dulles Airport last week, I noticed an Internet oddity. The nearby AT&T hotspot was fairly fast—that was a pleasant surprise.
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Will there be a Distributed HTTP?
One of the things that came up at the HTTP Workshop was “distributed HTTP” — i.e., moving the Web from a client/server model to a more distributed one. This week, Brewster Khale (of Archive.org fame) talked about similar thoughts on his blog and at CCC. If you haven’t seen that yet, I’d highly suggest watching the…
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Telegram stalking
Update 20151216: This quick post got far more attention than expected. I regret not mentioning that the leakage can easily be prevented via a setting. In practice the problem remains, users in general will have no idea about this being a relevant setting to change and will stay with the default. The best discussion on…
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OS X 10.10.3 seems to have done something bad to wifi drivers
As a PSA (public service announcement), I'm reporting here that updating your Yosemite system to 10.10.3 is incredibly toxic if you use WiFi...
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Why is Bitcoin forking?
A tale of differing visions
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Solaris adopting OpenBSD's pf
Yet another proprietary tech titan turns to the free OpenBSD operating system as their source of innovation in the networking and security ...
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The best ping story I've ever heard
Yes, it's true! I'm the author of ping for UNIX. Ping is a little thousand-line hack that I wrote in an evening which practically everyone seems to know about. :-)
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