On Tuesday, 16 July 2024 15:59:40 CEST Diederik de Haas wrote: > For shits and giggles, I tried it on my PineTab2 too (also rk3566): > > =========================================================== > root@pinetab2:~# uname -a > Linux pinetab2 6.10+unreleased-arm64 #1 SMP Debian 6.10-1~cknow (2024-04-24) > aarch64 GNU/Linux > > root@pinetab2:~# dd if=/dev/hwrng bs=100000 count=1 > /dev/null > 1+0 records in > 1+0 records out > 100000 bytes (100 kB, 98 KiB) copied, 5,69533 s, 17,6 kB/s > > root@plebian-pinetab2:~# cat /dev/hwrng | rngtest -c 1000 > rngtest 5 > 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: 20000032 > rngtest: FIPS 140-2 successes: 730 > rngtest: FIPS 140-2 failures: 270 > rngtest: FIPS 140-2(2001-10-10) Monobit: 266 > rngtest: FIPS 140-2(2001-10-10) Poker: 23 > rngtest: FIPS 140-2(2001-10-10) Runs: 9 > 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=2.615; avg=137.889; > max=9765625.000)Kibits/s rngtest: FIPS tests speed: (min=24.643; > avg=34.518; max=68.364)Mibits/s rngtest: Program run time: 149674336 > microseconds > =========================================================== > > That's looking quite a lot better ... and I have no idea why. > > The Q64-A is used as headless server and the PineTab2 is not, > but I connected to both over SSH and they were freshly booted > into, thus I haven't actually/normally used the PT2 since boot. I did freshly install rng-tools5 package before running the test, so I rebooted again to make sure that wasn't a factor: =========================================================== root@pinetab2:~# cat /dev/hwrng | rngtest -c 1000 rngtest 5 ... rngtest: starting FIPS tests... rngtest: bits received from input: 20000032 rngtest: FIPS 140-2 successes: 704 rngtest: FIPS 140-2 failures: 296 rngtest: FIPS 140-2(2001-10-10) Monobit: 293 rngtest: FIPS 140-2(2001-10-10) Poker: 32 rngtest: FIPS 140-2(2001-10-10) Runs: 10 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=2.612; avg=137.833; max=9765625.000)Kibits/s rngtest: FIPS tests speed: (min=24.391; avg=34.416; max=68.364)Mibits/s rngtest: Program run time: 149736205 microseconds =========================================================== So that 704/296 vs 730/270 in the previous run on the PT2. In case it helps: =========================================================== root@quartz64a:~# grep . /sys/devices/virtual/misc/hw_random/rng_* /sys/devices/virtual/misc/hw_random/rng_available:rockchip-rng /sys/devices/virtual/misc/hw_random/rng_current:rockchip-rng /sys/devices/virtual/misc/hw_random/rng_quality:900 /sys/devices/virtual/misc/hw_random/rng_selected:0 root@pinetab2:~# grep . /sys/devices/virtual/misc/hw_random/rng_* /sys/devices/virtual/misc/hw_random/rng_available:rockchip-rng /sys/devices/virtual/misc/hw_random/rng_current:rockchip-rng /sys/devices/virtual/misc/hw_random/rng_quality:900 /sys/devices/virtual/misc/hw_random/rng_selected:0 =========================================================== Cheers, Diederik
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