Re: Continuing /dev/random problems with 2.4

H. Peter Anvin
2002-02-01T20:27:44Z

Peter Monta wrote:

>>Anything that is meant to be a server really pretty much needs an
>>enthropy generator these days.
>>
>
> Many motherboards have on-board sound. Why not turn the mic
> gain all the way up and use the noise---surely there will be
> a few bits' worth?
>
> Perhaps there ought to be a way to give bits to the kernel's
> /dev/random input hopper from user space.
>

There already is. If I'm not completely mistaken, just write the raw data
to /dev/random, then there is an ioctl() saying "add N bits to the
entrophy counter."

-hpa