#14937: Tiny chunks of entropy from /dev/urandom
-------------------------+----------------------------
Reporter: kallisti5 | Owner: nobody
Type: bug | Status: new
Priority: normal | Milestone: Unscheduled
Component: Drivers | Version: R1/Development
Resolution: | Keywords: urandom
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
-------------------------+----------------------------
Comment (by kallisti5):
rng-tools offers some neat test programs for random sources of data's...
randomness.
Here are a few examples from my linux machine...
{{{
[root@eris ~]# cat /dev/hwrng | rngtest -t 10
rngtest 6.9
Copyright (c) 2004 by Henrique de Moraes Holschuh
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.
rngtest: starting FIPS tests...
rngtest: bits received from input: 500040032
rngtest: FIPS 140-2 successes: 24987
rngtest: FIPS 140-2 failures: 15
rngtest: FIPS 140-2(2001-10-10) Monobit: 0
rngtest: FIPS 140-2(2001-10-10) Poker: 3
rngtest: FIPS 140-2(2001-10-10) Runs: 7
rngtest: FIPS 140-2(2001-10-10) Long run: 5
rngtest: FIPS 140-2(2001-10-10) Continuous run: 0
rngtest: input channel speed: (min=992.744; avg=71153.961;
max=19531250.000)Kibits/s
rngtest: FIPS tests speed: (min=58.869; avg=152.150; max=185.179)Mibits/s
rngtest: Program run time: 10016917 microseconds
}}}
{{{
[root@eris ~]# cat /dev/random | rngtest -t 10
rngtest 6.9
Copyright (c) 2004 by Henrique de Moraes Holschuh
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.
rngtest: starting FIPS tests...
rngtest: bits received from input: 72700032
rngtest: FIPS 140-2 successes: 3632
rngtest: FIPS 140-2 failures: 3
rngtest: FIPS 140-2(2001-10-10) Monobit: 1
rngtest: FIPS 140-2(2001-10-10) Poker: 1
rngtest: FIPS 140-2(2001-10-10) Runs: 1
rngtest: FIPS 140-2(2001-10-10) Long run: 0
rngtest: FIPS 140-2(2001-10-10) Continuous run: 0
rngtest: input channel speed: (min=2.064; avg=7.433; max=8.504)Mibits/s
rngtest: FIPS tests speed: (min=56.936; avg=103.244; max=183.399)Mibits/s
rngtest: Program run time: 10000423 microseconds
}}}
{{{
[root@eris ~]# cat /dev/urandom | rngtest -t 10
rngtest 6.9
Copyright (c) 2004 by Henrique de Moraes Holschuh
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.
rngtest: starting FIPS tests...
rngtest: bits received from input: 1788660032
rngtest: FIPS 140-2 successes: 89373
rngtest: FIPS 140-2 failures: 60
rngtest: FIPS 140-2(2001-10-10) Monobit: 9
rngtest: FIPS 140-2(2001-10-10) Poker: 12
rngtest: FIPS 140-2(2001-10-10) Runs: 18
rngtest: FIPS 140-2(2001-10-10) Long run: 21
rngtest: FIPS 140-2(2001-10-10) Continuous run: 0
rngtest: input channel speed: (min=476.837; avg=20203.708;
max=19073.486)Mibits/s
rngtest: FIPS tests speed: (min=68.857; avg=172.168; max=185.179)Mibits/s
rngtest: Program run time: 10001792 microseconds
}}}
And my TrueRNG USB dongle.
{{{
[root@eris ~]# cat /dev/TrueRNG | rngtest -t 10
rngtest 6.9
Copyright (c) 2004 by Henrique de Moraes Holschuh
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.
rngtest: starting FIPS tests...
rngtest: bits received from input: 3360032
rngtest: FIPS 140-2 successes: 168
rngtest: FIPS 140-2 failures: 0
rngtest: FIPS 140-2(2001-10-10) Monobit: 0
rngtest: FIPS 140-2(2001-10-10) Poker: 0
rngtest: FIPS 140-2(2001-10-10) Runs: 0
rngtest: FIPS 140-2(2001-10-10) Long run: 0
rngtest: FIPS 140-2(2001-10-10) Continuous run: 0
rngtest: input channel speed: (min=325.570; avg=329.150;
max=335.508)Kibits/s
rngtest: FIPS tests speed: (min=70.905; avg=97.157; max=174.986)Mibits/s
rngtest: Program run time: 10003878 microseconds
}}}
--
Ticket URL: <https://dev.haiku-os.org/ticket/14937#comment:5>
Haiku <https://dev.haiku-os.org>
The Haiku operating system.
