Mike Silbersack 3a7810bc39 Minor improvements to arc4random():
- Decrease reseeding interval from every 64 to every 16384 runs
  to reduce entropy usage.
- Add time based reseeding.  (Every 5 minutes.)
- Throw away the first 256 words of output as suggested in
  "Weaknesses in the Key Scheduling Algorithm of RC4."

Reviewed by: Mark Murray
MFC After: jkh says ok
2001-08-30 01:15:25 +00:00
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