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audio entropy daemon
Audio-entropyd generates entropy-data for the /dev/random device.
This version also includes some patches by Udo van den Heuvel which makes it more intelligent for when it should add data to the entropy-pool.
Version 0.0.4 is a massive rewrite: the method for entropy-gathering was completely rewritten.
Download
Changes
1.0.1: no longer exits when random data is not random enough, it now skips it and continues when data is random enough again
1.0.0: the buffer was only refilled once
0.0.7: added code which checks the quality of the random data
Links
- VideoEntropyd is like audio-entropyd for a 'video-4-linux'-compatible device. E.g. a tv-card or a webcam.
- inventgeek.com - use a radiation-source from a smoke-dector and a webcam for generating random numbers.
- fourmilab - another article about generating true random numbers using an radioactive source.
- This website: http://www.cs.berkeley.edu/~daw/rnd/ lists a whole lot of links to information on entropy-gathering on computers.
- lavarnd.org - generating random values using a lavalamp and a webcam.
Hardware solutions
- Soekris engineering sells a board for aprox. $80 with a hardware RNG on it.
- ComScire has an USB solution producing upto 1Mb of random data per second.
- Orion has an RS232 solution producing 7.6Kb per second.
- hg400 USB2.0 connected hardware RNG. data-rates from 16Mb upto 32Mb.
- protego.se an RS232 and USB solution.
- qrbg - a USB connected quantum RNG. 12Mb/s
- idquantique - another quantum solution. 4 upto 16Mb
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