Commit Graph

3 Commits

Author SHA1 Message Date
Doug Barton
2005d17979 The script mistakenly ignores the entropy_save_sz variable from
rc.conf[.local]. Fix this, and leave the default as 2048.

Update the copyright year to include the present.

Update the assignment of the copyright to be me personally,
instead of "The FreeBSD Project" which is not a legal entity,
and therefore not a proper assignee. My intention remains the
same however, that this code continue to be BSD licensed, and
freely available to anyone that wants it under those terms.

PR:		conf/75722
Submitted by:	Nicolas Rachinsky <list@rachinsky.de>
2005-04-11 02:07:33 +00:00
Doug Barton
10fe5181ec Move the process of storing entropy from /dev/random and reseeding with
it at boot time closer to the way we want it to be in the final version.

* Move the default directory to /var/db/entropy
* Run the entropy saving cron job every 11 minutes. This seems
  to be a better default, although still bikeshed material.
* Feed /dev/random some cheesy "entropy" from various commands
  and files before the disks are mounted. This gives /dev/random
  a better chance of running without blocking early.
* Move the reseeding with previously stored entropy to the point
  immediately after the disks are mounted.
* Make the harvesting script a little safer in regards to the
  possibility of accidentally overwriting something other
  than a regular file.
2001-01-14 07:18:31 +00:00
Doug Barton
27a803d631 Add a system to save entropy from /dev/random periodically so that
it can be used to reseed at boot time. This will greatly increase
the chances that there will be sufficient entropy available at
boot time to prevent long delays.

For /etc/rc, remove the vmstat and iostat runs from the attempt
to provide some cheesy randomness if the files fail, since
those programs are dynamically linked, and ldd seems to want
some randomness to do its magic.

Guidance and parameters for this project were provided by
Mark Murray, based on the requirements of the Yarrow
algorithm. Some helpful suggestions for implementation
(including the tip about iostat and vmstat) were provided
by Sheldon Hearn. All blame for problems or mistakes is
mine of course.
2001-01-11 13:01:20 +00:00