Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 103 posts.
Xerox scanners/photocopiers randomly alter numbers in scanned documents Please see the “condensed time line” section (the next one) for a time line of how the Xerox saga unfolded. It for example depicts that I did not push the thing to the public right away, but gave Xerox a lot of time before I did so. <iframe…
You surely know this: You're looking at some website with some useful shell commands. However, those commands are long as hell and you know you're probably not gonna need them for a few years or so (so there's no need to memorize them). So, what do you do? You copy-paste them. Here's an example:
Today at the Chaos Computer Congress ( 30C3 ), xobs and I disclosed a finding that some SD cards contain vulnerabilities that allow arbitrary code execution — on the memory card itself. On the dark side, code execution on the memory card enables a class of MITM (man-in-the-middle) attacks, where the card seems to be…
Apart from this article, I also gave a talk at OHM2013 about this subject. The video of that talk (minus the first few minutes) is now online .
Home | FAQ | Feedback | Licence | Updates | Mirrors | Keys | Links | Team Download: Stable · Snapshot | Docs | Privacy | Changes | Wishlist
UPDATE: Add the IRS to the list of federal agencies obtaining information from NSA surveillance. Reuters reports that the IRS got intelligence tips from DEA's secret unit (SOD) and were also told to cover up the source of that information by coming up with their own independent leads to recreate...
Yesterday, the web was buzzing with commentary about Google CEO Eric Schmidt's dangerous, dismissive response to concerns about search engine users' privacy. When asked during an interview for CNBC's recent "Inside the Mind of Google" special about whether users should be sharing information with...
At Open Whisper Systems, we’ve been working on improving our encrypted asynchronous chat protocol for TextSecure. The TextSecure protocol was originally a derivative of OTR, with minor changes to accommodate it for transports with constraints like SMS or Push. Some of the recent changes we’ve ...
As one of the maintainers of eCryptfs , and a long time Thinkpad owner, I have been asked many times to add support to eCryptfs for Th...
Quick summary of my recommendations on compare-by-hash: If you are using compare-by-hash to generate addresses for data that can be supplied by malicious users, you should have a plan to migrate to a new hash every few years. For example, BitTorrent falls into this category, but rsync doesn't. Keep in mind that new…
The biometrics hacking team of the Chaos Computer Club (CCC) has successfully bypassed the biometric security of Apple's TouchID using easy everyday means. A fingerprint of the phone user,...
Random numbers are critical for cryptography: for encryption keys, random authentication challenges, initialization vectors, nonces, key-agreement schemes, generating prime numbers and so on. Break the random-number generator, and most of the time you break the entire security system. Which is why you should worry…
On November 20th, 2012 Comcast hijacked my HTTP traffic and re-routed it through their own servers, injecting a “notice” on the page before completing the request. What this means is instead of my web request being routed to the website I wanted to visit, Comcast took it upon themselves to hijack my web…
Convinced from spending hours reading rave reviews, Bob eagerly clicked “Proceed to Checkout” for his gallon of Tuscan Whole Milk and…
At Open Whisper Systems, we often get emails from people who’d like to donate money to the project. For an OSS project, particularly one that aspires to a collective sense of ownership, handling donations is not always entirely straightforward. The fundamental contradiction is that while donatio...
Traditionally, asynchronous messaging systems such as email have relied on protocols like PGP or S/MIME for cryptographic security. These protocols work the way most people are familiar with: one who wishes to receive encrypted email advertises a public key, and those wishing to send encrypted e...
I've spent the past few months developing a new build system for the 3.0 series of the Tor...
The new Snowden revelations are explosive. Basically, the NSA is able to decrypt most of the Internet. They’re doing it primarily by cheating, not by mathematics. It’s joint reporting between the Guardian, the New York Times, and ProPublica. I have been working with Glenn Greenwald on the Snowden documents, and I have…
Thoughts on the death of Ma Ailun According to reports , a woman in China was tragically electrocuted using her iPhone while it was char...
History, background, visiting, ordering, using, & analyzing the drug market Silk Road 1
Spotify supports unicode usernames which we are a bit proud of (not many services allow you to have ☃, the unicode snowman, as a username). However, it has also been a reliable source of pain over the years. This is the story of one time when it bit us pretty badly and how we spent Easter dealing with it.
