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Re: Why does reading from /dev/urandom deplete entropy so much?
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From:
Alan Cox <alan@...>
To: Adrian Bunk <bunk@...>
Cc: Marc Haber <mh+linux-kernel@...>, <linux-kernel@...>
Subject:
Re: Why does reading from /dev/urandom deplete entropy so much?
Date: Tuesday, December 4, 2007 - 12:47 pm
> No matter what you consider as being better, changing a 12 years old and
quoted text
> widely used userspace interface like /dev/urandom is simply not an > option.
Fixing it to be more efficient in its use of entropy and also fixing the fact its not actually a good random number source would be worth looking at however. --
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Messages in current thread:
Why does reading from /dev/urandom deplete entropy so much?
, Marc Haber
, (Tue Dec 4, 7:41 am)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Eric Dumazet
, (Tue Dec 4, 10:16 am)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Adrian Bunk
, (Tue Dec 4, 12:18 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Bill Davidsen
, (Thu Dec 6, 3:32 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Adrian Bunk
, (Sat Dec 8, 6:03 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Bill Davidsen
, (Tue Dec 11, 11:42 am)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Marc Haber
, (Thu Dec 20, 6:27 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Phillip Susi
, (Wed Dec 26, 2:27 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Ismail
, (Sat Dec 8, 6:10 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Theodore Tso
, (Sat Dec 8, 7:46 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Ismail
, (Sun Dec 9, 2:21 am)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Theodore Tso
, (Sun Dec 9, 8:31 am)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Ismail
, (Sun Dec 9, 10:06 am)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Willy Tarreau
, (Sun Dec 9, 1:21 am)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Jon Masters
, (Sun Dec 9, 2:52 am)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Ray Lee
, (Tue Dec 4, 12:54 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Marc Haber
, (Wed Dec 5, 8:23 am)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Matt Mackall
, (Tue Dec 4, 2:01 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Bill Davidsen
, (Thu Dec 6, 4:08 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Alan Cox
, (Tue Dec 4, 12:55 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Matt Mackall
, (Tue Dec 4, 2:02 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Theodore Tso
, (Tue Dec 4, 3:50 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Alan Cox
, (Tue Dec 4, 4:40 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Mike McGrath
, (Tue Dec 4, 4:48 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Theodore Tso
, (Tue Dec 4, 6:03 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Mike McGrath
, (Tue Dec 4, 6:12 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Matt Mackall
, (Tue Dec 4, 6:28 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Matt Mackall
, (Tue Dec 4, 5:54 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Matt Mackall
, (Tue Dec 4, 5:08 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Mike McGrath
, (Tue Dec 4, 5:18 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Matt Mackall
, (Tue Dec 4, 6:15 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Mike McGrath
, (Tue Dec 4, 6:23 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Matt Mackall
, (Tue Dec 4, 6:33 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Mike McGrath
, (Wed Dec 5, 10:26 am)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Theodore Tso
, (Wed Dec 5, 10:49 am)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Pavel Machek
, (Mon Dec 10, 12:37 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Jon Masters
, (Sat Dec 8, 3:38 am)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Theodore Tso
, (Sat Dec 8, 1:32 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Mike McGrath
, (Sat Dec 8, 1:33 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Theodore Tso
, (Sat Dec 8, 1:49 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Jeff Garzik
, (Sat Dec 8, 2:31 pm)
RE: Why does reading from /dev/urandom deplete entropy so mu...
, David Schwartz
, (Sat Dec 8, 4:26 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Matt Mackall
, (Sat Dec 8, 2:15 pm)
entropy gathering (was Re: Why does reading from /dev/urando...
, Jeff Garzik
, (Sat Dec 8, 3:36 pm)
Re: entropy gathering (was Re: Why does reading from /dev/ur...
, Willy Tarreau
, (Sat Dec 8, 4:42 pm)
Re: entropy gathering (was Re: Why does reading from /dev/ur...
, Theodore Tso
, (Sat Dec 8, 7:47 pm)
Re: entropy gathering (was Re: Why does reading from /dev/ur...
, Jon Masters
, (Sat Dec 8, 9:07 pm)
Re: entropy gathering (was Re: Why does reading from /dev/ur...
, Matt Mackall
, (Sat Dec 8, 3:53 pm)
Re: entropy gathering (was Re: Why does reading from /dev/ur...
, Jeff Garzik
, (Sat Dec 8, 4:04 pm)
Re: entropy gathering (was Re: Why does reading from /dev/ur...
, Theodore Tso
, (Sat Dec 8, 4:31 pm)
Re: entropy gathering (was Re: Why does reading from /dev/ur...
, Jeff Garzik
, (Sat Dec 8, 4:47 pm)
Re: entropy gathering (was Re: Why does reading from /dev/ur...
, Matt Mackall
, (Sat Dec 8, 4:19 pm)
Re: entropy gathering (was Re: Why does reading from /dev/ur...
, Willy Tarreau
, (Sat Dec 8, 5:07 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Theodore Tso
, (Sat Dec 8, 2:24 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Jon Masters
, (Sat Dec 8, 1:54 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Matt Mackall
, (Sat Dec 8, 1:43 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Theodore Tso
, (Sat Dec 8, 2:05 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Jon Masters
, (Sat Dec 8, 1:47 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Jon Masters
, (Sat Dec 8, 1:45 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Matt Mackall
, (Tue Dec 4, 4:36 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Marc Haber
, (Wed Dec 5, 8:29 am)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Theodore Tso
, (Wed Dec 5, 9:33 am)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Marc Haber
, (Wed Dec 5, 11:10 am)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Alan Cox
, (Tue Dec 4, 12:47 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Eric Dumazet
, (Tue Dec 4, 2:17 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Matt Mackall
, (Wed Dec 5, 5:26 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Marc Haber
, (Sun Dec 9, 8:42 am)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Matt Mackall
, (Sun Dec 9, 12:16 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Marc Haber
, (Mon Dec 10, 7:06 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Matt Mackall
, (Mon Dec 10, 7:35 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Theodore Tso
, (Mon Dec 10, 9:34 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Phillip Susi
, (Tue Dec 11, 3:46 pm)
RE: Why does reading from /dev/urandom deplete entropy so mu...
, David Schwartz
, (Wed Dec 12, 1:34 am)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Ray Lee
, (Tue Dec 11, 4:02 pm)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Eric Dumazet
, (Thu Dec 6, 3:02 am)
Re: Why does reading from /dev/urandom deplete entropy so mu...
, Matt Mackall
, (Thu Dec 6, 12:09 pm)
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