Re: [PATCH 0/2] Add support for Qualcomm's PRNG

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




On Wed, Oct 09, 2013 at 08:07:35AM -0700, H. Peter Anvin wrote:

> consider the PowerPC random number generator[1]) and

[snip]

> [1] which has a known first-order bias which they "correct" for by
> XORing two datums together in a very simple data reduction step.

65 actually, not two.

> However, if their random source has bias it is extremely likely it also
> has nonzero correlations, which require stronger reductions.  It would

The correlations are essentially zero, by design, and experiment
confirms it.  Did you see my mail on the kvm list where I explained
how it works?

Paul.
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]
  Powered by Linux