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Date: Fri, 11 Oct 2013 09:05:04 +0200 From: Clemens Ladisch <clemens@...isch.de> To: Stanimir Varbanov <svarbanov@...sol.com>, "H. Peter Anvin" <hpa@...or.com> CC: Theodore Ts'o <tytso@....edu>, Rob Herring <rob.herring@...xeda.com>, Pawel Moll <pawel.moll@....com>, Mark Rutland <mark.rutland@....com>, Stephen Warren <swarren@...dotorg.org>, Ian Campbell <ijc+devicetree@...lion.org.uk>, Matt Mackall <mpm@...enic.com>, Herbert Xu <herbert@...dor.hengli.com.au>, linux-kernel@...r.kernel.org, Rob Landley <rob@...dley.net>, devicetree@...r.kernel.org, linux-doc@...r.kernel.org, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, linux-arm-msm@...r.kernel.org Subject: Re: [PATCH 0/2] Add support for Qualcomm's PRNG Stanimir Varbanov wrote: > I ran the rngtest with following command line: > > # cat /dev/hw_random | rngtest -c 100000 > ... > rngtest: bits received from input: 2000000032 > rngtest: FIPS 140-2 successes: 99925 > rngtest: FIPS 140-2 failures: 75 > ... > > Could you guys comment those results? These tests are expected to fail a few times even for perfectly random data (think monkeys/Shakespeare). An entropy source will be permanently disabled by rngd only if the failure ratio is worse than 1 in 1000. Regards, Clemens -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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