Domain: unaligned.org
Stories and comments across the archive that link to unaligned.org.
Comments · 10
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Powder Toy
Throwing in a shameless plug for a game I worked on - Powder Toy ( http://powder.unaligned.org/ ) - it may not be physically accurate (at all) but it's a lot of fun and would introduce them to pressure and velocity in a fun way.
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Powder Game or Powder Toy - Fireworks-like program
Someone might enjoy these two programs which allow fireworks-like effects: http://dan-ball.jp/en/javagame/dust/ http://powder.unaligned.org/ http://www.youtube.com/watch?v=MESkoRgSeJo http://www.youtube.com/watch?v=Jdf2JSKHWe0
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Could it be broken with FPGAs?
The big problem for the victim here is that RSA with a key that big can't be brute-forced in any sort of reasonable time on current computers. But what about using FPGAs, something like this?
Is RSA immune to these kind of solutions? As I understand it* the inherent parallelism of FPGAs makes them well-suited to this kind of thing
*based on Wikipedia and a single university course in VHDL coding. -
Re:Truecrypt
True
... Truecrypt is badass for the powers that be.
However, fear mongers will really, really hate talented individuals that post step-by-step instructions on how to set up http://nsa.unaligned.org/. -
Re:What about FPGAs?
That has already been done, but it is far more complicated to setup.
http://nsa.unaligned.org/ -
Like this one. Impressive!
Like this one that's capable of searching the full 8-character keyspace (from a 64-character set) for SHA-1 in about a day! Impressive!
http://nsa.unaligned.org/ -
I dont if its relevent........
But I saw a post about a sha/md5 cracker http://nsa.unaligned.org/ Could that help at all?
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I recognise that pattern!
Cool diagram.
I used to draw patterns like that while suffering through triple Maths - draw a circle, mark off every 10 degrees (or 5 if it looked like being really boring today), then join every point to every other point. Mindless, yet strangely satisfying.
And what kind of nerd site doesn't let you use a degree symbol? -
Re:How fast is that?
"NSA@home is a fast FPGA-based SHA-1 and MD5 bruteforce cracker. It is capable of searching the full 8-character keyspace (from a 64-character set) in about a day in the current configuration for 800 hashes concurrently."
So your 2200+ AMD is beaten to little pieces by this monster.
Source, well, you had to click a single link to their homepage. That'll learn you to post early. Or not, since I supplied you the answer anyway. -
SHA-cracker?
That's nice, his own SHA-1 cracker. But, even with advanced cryptographic attacks, SHA-1 is still in the order of 2^63. Not something you would like to try with just a few FPGA's. What is meant here is a cracker to find out which plain text, with limited entropy, is used to create a certain hash value. A SHA-1-based password cracker would therefore be a better name, I suppose.
It seems from here that it searches a 64 ^ 8 = (2 ^ 6) ^ 8 = 2 ^ 48 keyspace in 24 hours. No small feat, it should therefore do about 3,257,812,230 hashes in a second. It does 800 concurrently, which makes for 4 million a second per SHA-1 unit. Ouch, that's really fast.
Note that this could be done with any hash or symmetric algorithm, as long as it can be implemented on FPGA. So the moral of the story: use very long password (or even better, pass phrases), or make sure that they won't be able to acquire the hash.