Matches for Entropy, 516 total results Sorted by newest | relevance
Thu Oct 29 13:53:11 UTC 2015 <asciilifeform> http://log.bitcoin-assets.com/?date=29-10-2015#1310695 << basic idea: go and try to actually TEST, e.g., gpg key generator. as in, deterministically. this is nontrivial - gotta saw off the entropy collector and replace with something.
Thu Oct 29 09:28:35 UTC 2015 <davout> nah, i was trying to figure out exactly, at what points should sane software accept user-generated entropy
Fri Oct 09 02:11:02 UTC 2015 <asciilifeform> normally everybody proposes it and then writes it off as 'we haven't the cpu or the entropy'
Tue Oct 06 09:10:03 UTC 2015 <gabriel_laddel> "Entropy isn't what it used to be."
Tue Sep 29 14:12:53 UTC 2015 <mircea_popescu> in fact the smoothness comparison is a decent indication of the entropy involved.
Thu Sep 17 04:19:19 UTC 2015 <mircea_popescu> "You dont need entropy to create an ECDSA signature. You do need it to create an RSA signature, for padding."
Wed Sep 16 21:54:05 UTC 2015 <jurov> "In cases where keys or seeds are created without the use of software (e.g. dice, a deck of cards, or other non-digital source of entropy), the creation methodology should be validated to ensure determinism is not present (i.e. there are no weighted dice, each card in the deck is unique, etc.)."
Tue Sep 08 19:05:26 UTC 2015 <jurov> yes, had in mind to check linux /dev/urandom without any entropy source in such a way
Tue Aug 25 01:25:37 UTC 2015 <asciilifeform> mircea_popescu: water in sahara, air in orbit, entropy on ibm pc...
Tue Aug 25 01:23:33 UTC 2015 <asciilifeform> entropy is squarely in the latter class
Tue Aug 25 01:12:21 UTC 2015 <mircea_popescu> entropy ios probably best.
Tue Aug 25 01:05:11 UTC 2015 <asciilifeform> 'a' or 'd' - 'describe three mutually-orthogonal notions of 'entropy', and their applications.'
Fri Aug 21 03:22:54 UTC 2015 <ben_vulpes> charges eventually dismissed because entropy can't in2 my dumb ass
Fri Jul 17 10:04:12 UTC 2015 <jurov> and then someone will hax it and use radio as mere entropy source for mining :DDDD
Fri Jul 10 18:58:50 UTC 2015 <ascii_field> 'bad entropy' is easy: the kind which the enemy can cut you off from by silencing your net connection; or the kind he can guess some bits of, by watching packets (no interrupt source in pogo is in any sense entropic other than the NIC's)
Fri Jul 10 18:56:54 UTC 2015 <mircea_popescu> at the rate people use adresses you need something like 1 byte of entropy per hour.
Fri Jul 10 18:56:43 UTC 2015 <mircea_popescu> ascii_field i have no idea what sort of an argument is this. there's no such thing as good or bad entropy. the thing is unqualifiable by definition. do you mean that you'd have to wait longer to generate a strong address? so you would.
Fri Jul 10 18:56:41 UTC 2015 <ascii_field> thing is, rng needs attributes ~other~ than 'shits entropy'. namely, not to be correlated with variables manipulable or monitorable by enemy
Fri Jul 10 18:55:35 UTC 2015 <mircea_popescu> ascii_field close enough, since any two clocks are an entropy measuring tool.
Mon Jul 06 20:37:51 UTC 2015 <mircea_popescu> because bitcoin is secured by mining which happens irl and the difficulty of mining is set on the basis of irl entropy.