It uses temperature and electronic noise
所在版块：求学狮城 发贴时间：2007-09-25 12:14  评分:

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Nowadays, the chip is built in almost all motherboard. This link is better. http://en.wikipedia.org/wiki/Hardware_random_number_generator

I remember there are also RNG using photon or other quantum stuff. They are not very expensive (price comparable to harddisk, I think), easy to use and not very big in size. Dr Chang Ee Chien mentioned it on his crypto class.
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在计算机上，怎么产生非伪随机数呀？ － bugzzj 　2007-09-24 11:43 (0 bytes , 669reads )
there is hardware random number generator － 吴永铮 　2007-09-24 19:11 (567 bytes , 350reads )
how random is it? － icky 　2007-09-25 09:48 (0 bytes , 342reads )
It uses temperature and electronic noise － 吴永铮 　2007-09-25 12:14 (364 bytes , 433reads )
you mean not "pseudo random numbers"? － icky 　2007-09-24 13:43 (0 bytes , 301reads )
yes. － bugzzj 　2007-09-24 14:38 (0 bytes , 370reads )
I don't know any existing algorithm generating non-pseudo random number － icky 　2007-09-24 15:22 (70 bytes , 451reads )
I thought about this question before. One solution is to have distributed comput － simon 　2007-09-25 01:47 (367 bytes , 378reads )
man, it's still deterministic, just that the model is very complicated.... :) － icky 　2007-09-25 09:46 (0 bytes , 348reads )
everything is deterministic. only difference is how complicated the generator is － simon 　2007-09-25 14:35 (42 bytes , 525reads )
yes, if everything is deterministic, how does the random come from? － icky 　2007-09-25 16:57 (32 bytes , 411reads )
it's just a ideal concept. like poisson. there's no real poisson. － simon 　2007-09-26 00:15 (298 bytes , 323reads )
agreed... "to some extent"... － icky 　2007-09-26 11:07 (0 bytes , 377reads )
nothing, just for fun. － bugzzj 　2007-09-24 15:27 (0 bytes , 419reads )
as every instruction is determined － icky 　2007-09-24 16:01 (619 bytes , 360reads )
Sometimes it is not possible to describe the world completely － 香陵居士 　2007-09-25 11:37 (27 bytes , 425reads )
maybe － bugzzj 　2007-09-24 17:18 (741 bytes , 413reads )