Date: Thu, 12 Dec 2013 11:59:11 -0800 From: John-Mark Gurney <jmg@funkthat.com> To: Johnny Cho <popeye92@gmail.com> Cc: freebsd-drivers@freebsd.org Subject: Re: writing a module to feed entropy /dev/random Message-ID: <20131212195911.GJ55638@funkthat.com> In-Reply-To: <CAMaAhxcPrvvY37XBFaDMO%2B3GhCDKzMMWOwhqsFA9Bhfb0x_amg@mail.gmail.com> References: <CAMaAhxc5wJCPWdWGNESXP=kT0QtPXwF4bqq2yG3y-Wx8Sfnrhw@mail.gmail.com> <20131212051735.GI55638@funkthat.com> <CAMaAhxcPrvvY37XBFaDMO%2B3GhCDKzMMWOwhqsFA9Bhfb0x_amg@mail.gmail.com>
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Johnny Cho wrote this message on Thu, Dec 12, 2013 at 14:37 +0900: > On Thu, Dec 12, 2013 at 2:17 PM, John-Mark Gurney <jmg@funkthat.com> wrote: > > Johnny Cho wrote this message on Thu, Dec 12, 2013 at 14:13 +0900: > >> I'm Johnny Cho, a FreeBSD user in Korea. > >> > >> A friend of mine in Washington DC asked me to spread his word to > >> FreeBSD community. > >> > >> He is looking for someone to write a module to feed entropy > >> /dev/random with an Alea-1 USB entropy device. > >> > >> any help/comment/blame would be most welcome. > > > > Does all the data read from /dev/random need to come from the Alea-1 > > device? or does it just need to contribute to the entropy pool? If > > the later, than a simple daemon that every few seconds reads a few > > hundred bytes from the USB device (via libusb) and writes it to > > /dev/random should be enough... > > > > If the former then it'll be a bit more work... > > > > Is he looking for a voluteer? or is he willing to pay someone for the > > work? > > As far as I'm understanding based on his word, the former is more > likely what he wants. > He's found some trials by someone in the community, but the trials > seems to be given up. > > He is willing to pay for this. Does he want this all in kernel? or is most of it in userland fine? Is this the device? http://www.araneus.fi/products-alea-eng.html If he's fine w/ a userland implementation, using CUSE4BSD, then it's pretty easy as I've started writing a python front end to CUSE4BSD and integrating libusb shouldn't be to hard... If he needs it integrated into the kernel, then it'll be a bit more difficult as I'm not familar w/ the kernel USB side of things... -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."
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