Originally posted by LightBit
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New "Jitter Entropy" RNG Proposed For Linux
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Originally posted by Kristian Joensen View PostI was under the impression that true random number generators couldn't be implemented in software due to computers being 100% deterministic, was I wrong?
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Originally posted by LightBit View PostEntropy is something that is unpredictable, hard to guess.
PRNGs are algorithms that need to be seeded (keyed) with some entropy before they can output anything. Simple example of PRNG: http://en.wikipedia.org/wiki/RC4
(T)RNGs get entropy from physical properties, like thermal noise, nuclear decay or in this case CPU timing jitter.
(T)RNG is usually used to seed PRNG.
Both types output statistical random data.
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Entropy is something that is unpredictable, hard to guess.
PRNGs are algorithms that need to be seeded (keyed) with some entropy before they can output anything. Simple example of PRNG: http://en.wikipedia.org/wiki/RC4
(T)RNGs get entropy from physical properties, like thermal noise, nuclear decay or in this case CPU timing jitter.
(T)RNG is usually used to seed PRNG.
Both types output statistical random data.
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Originally posted by Ex-Cyber View PostA PRNG doesn't actually provide entropy.
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Originally posted by uid313 View PostDoesn't all new CPUs come with a built-in hardware (P)RNG?
http://en.wikipedia.org/wiki/Hardwar...or#Clock_drift (VIA C3)
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Hardware RNG
Doesn't all new CPUs come with a built-in hardware (P)RNG?
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