[Soekris] vpn1401 RNG

Michael Sierchio kudzu at tenebras.com
Thu Jul 28 17:07:39 UTC 2005


Mike D wrote:

 > I was wondering if anyone has had any experience accessing the RNG
 > directly (through C++,or even something else) on the vpn140. My plan
 > is to use this card to generate a stream of random bits for use within
 > a larger project. I just want to make sure this is possible before I
 > purchase the card. Thank you!


Under FreeBSD, with a kernel compiled with the following options

device    crypto
device    cryptodev
device    hifn

will use the HiFn 7955's rbg to supply entropy to the random subsystem
(/dev/random).

man 4 hifn on a system that supports cryptodev




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