Reply To: rngd: failed fips test

[euler357]

I’m running Ubuntu 13.10 and rngd 4. I tried to reproduce your issue but can’t.

Here is a video of what happens when I try what you posted: http://youtu.be/nSD3MD2JTvE

Notice that when I run rngtest with the same block size as rngd, I get 0 failures. This is because rngd does the FIPS test and discards those blocks that are “failures”. This is the expected behavior.

Also, notice that my speed went down to 16k or so when using your rngd options. When I run it from init.d or directly without your options (i.e rngd -r /dev/TrueRNG -o /dev/random), I get the full speed back.

As for the -t 1 (timeout) option, I’m not 100% sure what this does and why you need it. It seems to coincide with the timing of your error message though (timeout = 1 sec, your error = 1 second intervals).

Chris