RNDTEST(4) Kernel Interfaces Manual RNDTEST(4) NAME rndtest -- FIPS 140-2 random number generator test monitor SYNOPSIS device rndtest DESCRIPTION The rndtest driver "hooks up" to hardware crypto devices to monitor the en- tropy data passed to the random(4) subsystem. This data is periodically tested for FIPS 140-2 compliance and statistics are collected. If the har- vested entropy fails any of the FIPS test suite, then it is discarded and testing is continuously applied until "good data" is received from the de- vice. Failures are optionally reported on the console. SEE ALSO crypto(4), hifn(4), random(4), safe(4), crypto(9) HISTORY The idea for this and the original code came from Jason L. Wright. The rndtest device driver first appeared in FreeBSD 5.0. BUGS Crypto device drivers must be compiled specially to make use of this dri- ver; this should not be necessary. This feature might better be integrated into the random(4) subsystem where it can be applied to devices that claim to supply "pure entropy". FreeBSD 15.1 May 11, 2020 RNDTEST(4)
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