Writing on Dave Farber's Interesting People list, PGP's Jon Callas busts out this lovely analogy about the strength of 128-bit keys used in connection with his cipher.
Modern cryptographic systems are essentially unbreakable, particularly if an adversary is restricted to intercepts. We have argued for, designed, and built systems with 128 bits of security precisely because they are essentially unbreakable. It is very easy to underestimate the power of exponentials. 2^128 is a very big number. Burt Kaliski first came up with this characterization, and if he had a nickel for every time I tell it, he could buy a latte or three.
Imagine a computer that is the size of a grain of sand that can test keys against some encrypted data. Also imagine that it can test a key in the amount of time it takes light to cross it. Then consider a cluster of these computers, so many that if you covered the earth with them, they would cover the whole planet to the height of 1 meter. The cluster of computers would crack a 128-bit key on average in 1,000 years.
If you want to brute-force a key, it literally takes a planet-ful of computers. And of course, there are always 256-bit keys, if you worry about the possibility that government has a spare planet that they want to devote to key-cracking.
The whole post is good and goes on from there to talk about real and possible vulnerabilities in cryptosystems (for example, the government could break into your house and put a keylogger in your computer for a fraction of the cost of attempting to break the crypto).
The Cobham catalog, exposed by The Intercept, features countless pages of surveillance gadgets sold to U.S. police to spy on American citizens: tiny black boxes with a big interest in you. In the creepily bland feature lists and nerdy product names is a whisper of a dark future; perhaps darker than anyone can imagine.
This image depicts the most commonly-found stylesheet colors on the web’s top sites—Paul Hebert did an amazing amount of analysis and this is just one of the intriguing visualizations he came up with. Most of these are obvious staples, especially HTML red and blue, though it’s interesting how far the blue “cluster” is from the […]
With the cacophony of an election year ablaze with unparalleled drama being fought on the front lines of Twitter, we find ourselves slowing down and staring at it like a bad accident. The need for escapist relief is perhaps more dire than usual right now. This fall, if it’s drama you crave, but the Hillary […]
Amazon’s Audible is hands-down the most popular place to find audiobooks. With its library of over 180,000 books, Audible has the biggest audiobook selection in the world, and a membership gets you a free book each month. You can sync Audible across multiple devices, so you’ll never lose your spot whether you’re on your computer or your phone.This […]
#1. A-Audio Legacy Noise Cancelling Headphones with 3-Stage Technology The A-Audio Legacy Headphones are the Boing Boing Store’s best seller this month, and it’s easy to see why. With 40mm drivers, powerful circuitry, and memory foam padded circumaural ear cups, these are clearly super high-quality headphones. Plus, the patented 3-Stage Technology lets you toggle between passive […]
Vaping is getting more mainstream by the day, which means there’s been an influx of quality yet affordable vaporizers on the market. We’re particularly excited about the APX Wax Vaporizer Kit, which is an easy-to-use, high-quality vape that works with both dry herbs and waxy concentrates.If you’re a beginner trying to get into vaping, the APX […]