asciilifeform: ( pci etc would make moar sense for 'atomic' trng, as described in older thread, with the scintillator, because there your entropy extraction is limited more or less only by the clock speed of the take-off/debiaser and the dead time of the scintillator (1-5ns) )
asciilifeform: if there were pent-up demand for ruinously high bit rate, we could do pci version with N analogue boards; but so far i dun see it
asciilifeform: alternatively you can use a 'rs232 card', as formerly used to run dumb terminals, bbs modems, similar -- i have one here, happily does 9 ports
asciilifeform: 'Generating large amounts of truly random data is expensive. Fortunately, truly random data can be simulated by pseudorandom data produced by a stream cipher from a much smaller key. (Even better, slight deficiencies in the randomness of the cipher key do not compromise security.) The literature contains several scalable ciphers....' -- djb et al☟︎
asciilifeform: d 1513671; and by a gift from Cisco. P. Lou was supported by the Rachleff Scholars program at the University of Pennsylvania. We are grateful to Cisco for donating much of the hardware used for our experiments.'
asciilifeform: 'This work was supported by the Commission of the European Communities through the Horizon 2020 program under project number 645622 (PQCRYPTO) and project number 645421 (ECRYPT-CSA); by the Netherlands Organisation for Scientific Research (NWO) under grant 639.073.005; by the U.S. National Institute of Standards and Technology under grant 60NANB10D263; by the U.S. National Science Foundation under grants 1314919, 1408734, 1505799, an
asciilifeform: it is solely an excuse for pissing the bed, and never anything else.
asciilifeform: because the alternative is 'oh, shuddup that winblowz is porous, because godel, nyahahaha'
asciilifeform: and if someone wants to mention godel etc -- ethical engineer MAY NOT cite godel, EVER, just as a police detective MAY NOT cite the supernatural and admit a hypothesis of miraculous theft from a safe☟︎☟︎☟︎☟︎☟︎☟︎
asciilifeform: funny bit re metastability -- i did not realize that it was the one and only possible culprit until i confirmed that the logic analyzer in fact saw, on multiple occasions (at least 1 ppm) a variant logic state from what the rest of the circuit saw.
asciilifeform: ( everything and everybody one day reverts to 'physical object' behaviour... )
asciilifeform: now if meteor falls on it, or nuke is set off nearby, all bets still off. physical object.
asciilifeform: how i solved this -- is exercise for the reader ( i did solve it )
asciilifeform: the practical consequence of this is that when it was connected to TWO of'em, they could easily end up with different impressions of what they saw, breaking 'yokeability')
asciilifeform: (problem was , analogue rng's waveform, while meeting the signal voltage constraint, and even the rise/fall time constraints, sometimes does not meet the hold time constraint! and results in metastable state in digital chip it is connected to
asciilifeform: now in all fairness, the coveted 'information processer' is not found in nature, only the lowly 'physical object' is found there; and to make the former out of the latter is not at all easy,
asciilifeform: ( and leads to terminate-with-epitaph, a perfectly valid state, rather than exploitability )
asciilifeform: where the only 'world ends' operation is div0
asciilifeform: the generalization of the principle is ffa
asciilifeform: which in fact can be built to validly transition from every possible state to another valid possible state ( see the adder example earlier. )
asciilifeform: http://btcbase.org/log/2017-05-31#1663921 << overall it is not a useful line of thought re physical objects, all of which have 'potential deadly state', say of being launched through my head in a tornado. it is only interesting re information-processors.☝︎
asciilifeform: erlehmann: no c; no dynamic memory allocation; no unchecked buffer accesses at all, anywhere; no libraries; no dynamic linking; no 'idiomatic' idiocy; and most importantly, no more than few thou. line.
