Matches for Entropy, 516 total results Sorted by newest | relevance
Sun Jul 20 07:02:39 UTC 2014 <Vexual> i dtill think a cell phne cam is an excellent source of entropy
Sat Jul 19 01:32:18 UTC 2014 <decimation> "we have to accept that we can't give real entropy to those that need it, so shut up and get on the bus
Sat Jul 19 01:31:58 UTC 2014 <decimation> asciilifeform: re: linux on /dev/random "To me it sounds from your description that you may well be on the edge of "too anal". Real life _has_ to be taken into account, and not accepting entropy because of theoretical issues is _not_ a good idea"
Fri Jul 18 03:42:46 UTC 2014 <asciilifeform> decimation: the suitability of a number sequence for use as 'cryptographic entropy' is not a mathematical property of the sequence. it is a property of the aggregate of the sequence and the world in which it lives - i.e. whether the sequence is, or can easily become, known to the enemy.
Fri Jul 18 02:00:56 UTC 2014 <asciilifeform> gives unbiased output at the potential cost of never terminating (in that case you know for a fact that your entropy source is defective)
Fri Jul 18 01:23:05 UTC 2014 <BingoBoingo> reeses: User provided entropy sources http://www.newscientist.com/article/dn25859-stem-cell-treatment-causes-nasal-growth-in-womans-back.html Rassah asciilifeform
Thu Jul 17 02:40:14 UTC 2014 <mircea_popescu> <decimation> mircea: the chance of a random integer from 1 to x being prime is about 1/ln(x) << you just use the entropy to seed, much like pgp does. you don't actually roll the prime itself.
Thu Jul 17 02:33:25 UTC 2014 <benkay> put a nice HD camera in there and you might capture...*some* entropy.
Wed Jul 16 17:47:25 UTC 2014 <mircea_popescu> entropy and bias are not exactly orthogonal concerns, but they're still at an angle here
Wed Jul 16 03:09:29 UTC 2014 <decimation> ideally you want natural entropy
Wed Jul 16 03:05:02 UTC 2014 <mircea_popescu> decimation he prolly means just for the entropy.
Wed Jul 16 03:03:05 UTC 2014 <mthreat> Rassah et al: Would an accelerometer be a good source of entropy? "shake to randomize"
Wed Jul 16 02:56:02 UTC 2014 <benkay> mostly on the topic of getting entropy out of sram imho
Wed Jul 16 02:54:59 UTC 2014 <Rassah> benkay: a lot of tings said on the topic of that Entropy device have been very retarded
Tue Jul 15 21:46:14 UTC 2014 <asciilifeform> Rassah: i have a perfectly adequate source of physical entropy. actually a small crate of them at this point.
Tue Jul 15 21:45:46 UTC 2014 <Rassah> asciilifeform: I use "hash" interchangeably with "compute with one of the inputs for the formula being your source of entropy, and the output being your private key
Tue Jul 15 21:34:16 UTC 2014 <Rassah> Nikita: Total size 32 kBytes, we use about 21 kB as entropy source.
Tue Jul 15 21:32:25 UTC 2014 <Rassah> Me: You're basically saying that, even if they stole the device and examined it, or stole one that was made right after it with similar chip characteristics, they'd still have 8000 bits of entropy to dea with, making their brutefocing impossible?
Tue Jul 15 21:27:26 UTC 2014 <Rassah> So it's a good thing we're not relying on just SRAM fo the entropy then