The latest blog posts to take off on Hacker News. 139 posts.
There are rumors that the Obama campaign used an Ubuntu-based Linux distribution, though further analysis seems to indicate that these images were fakes. It would be great if someone from the Obama…
Snapchat 's (and now Facebook Poke 's) main claim to fame is that it lets you send "self-destructing" image messages. Setting aside the debate about the uses of this beyond sexting , the key vulnerability in both apps is the built-in ability to take screenshots. Both take a reactive approach, where you're notified if…
Crypteto has a 49,152-bit symmetric key: The most important issue of any encryption product is the ‘bit key strength’. To date the strongest known algorithm has a 448-bit key. Crypteto now offers a 49,152-bit key. This means that for every extra 1 bit increase that Crypteto has over its competition makes it 100%…
It’s a feudal world out there. Some of us have pledged our allegiance to Google: We have Gmail accounts, we use Google Calendar and Google Docs, and we have Android phones. Others have pledged allegiance to Apple: We have Macintosh laptops, iPhones, and iPads; and we let iCloud automatically synchronize and back up…
As most standards-aware network administrators know, blocking ICMP is evil. Sure, there are certain ICMP packets which should be blocked; but to quote RFC 2979 :
Who wants free stuff? C’mon, everybody wants a free lunch, right? Yes, yes they do and that’s precisely the trigger used in scams like this one. Recently I wrote about the mechanics of another Facebook scam [https://www.troyhunt.com/2012/10/she-did-what-in-school-mechanics-
Researchers have exploited bit-errors before in amazing ways . But bit-errors can be detected and exploited in new ways on an Internet-wide scale. One of these means is by bitsquatting, or registering domain names one bit different than frequently resolved domains.
"This Is Not A Film" by Iranian director Jafar Panahi, who is under house arrest in his country for alleged “propaganda against the regime,” will be screened under the Free Jafar Panahi Program of the 13th Cinemanila. The film was smuggled from Iran in a Flash-Drive hidden inside a cake to Cannes for screening a few…
A technique for abusing HTTP 301 redirects and random numbers to uniquely track users; even those who have cookies disabled in their web browsers.
Warning: According to Facebook you are not allowed to read this post, so beware.
SSH keys are useful to login over ssh (secure shell) without typing a password. They are also used by Github and other version control systems for passwordless authentication. Here is some basic information from the software developer point of view how to use SSH keys for maximum comfort and security. These…
Abstract: SSL (Secure Sockets Layer) is the de facto standard for secure Internet communications. Security of SSL connections against an active network attacker depends on correctly validating public-key certificates presented when the connection is established. We demonstrate that SSL certificate validation is…
I have the bloody habit to look for cheap deals on some websites and today I’ve got the featured offer to buy more than 1 million Facebook entries containing Full Name, e-mail and Facebook profile URL. I make a quick check over the data and surprise, surprise: most of them are real and I even know some of those users.
Several months back we have been playing with different file systems on various system platforms, examining the security posture and robustness of numerous device drivers’ implementations. One of the configurations we spent some time on was the commonly used NTFS on Microsoft Windows – as the file system is rather…
Earlier this month, a retired New York City locksmith was selling a set of “master keys” on eBay: Three of the five are standard issue for members of the FDNY, and the set had a metal dog tag that was embossed with an FDNY lieutenant’s shield number, 6896. The keys include the all-purpose “1620,” a master firefighter…
Jon Howell dreams of a new Internet. In this new Internet, cross-browser compatibility checking is a distant memory and new features can be unilaterally be added to browsers without having to convince the world to upgrade first. The idea which makes this Internet possible is so crazy, it just might work.
Feross Aboukhadijeh is a computer security researcher, teacher, web developer, designer, long distance runner, gamer, music lover, and builder of websites that (sometimes) go viral.
On a NIST-sponsored hash function mailing list, Jesse Walker (from Intel; also a member of the Skein team) did some back-of-the-envelope calculations to estimate how long it will be before we see a practical collision attack against SHA-1. I’m reprinting his analysis here, so it reaches a broader audience. According…
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…
NIST is about to announce the new hash algorithm that will become SHA-3. This is the result of a six-year competition, and my own Skein is one of the five remaining finalists (out of an initial 64). It’s probably too late for me to affect the final decision, but I am hoping for “no award.” It’s not that the new hash…
Update: Virgin fixed the issue Tuesday night after taking their login page down for four hours. Please see my update at the bottom of this post.
Is your PIN number too predictable? Detailed analysis on PIN number databases.
