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Re: Why does reading from /dev/urandom deplete entropy so much?

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From: Marc Haber
Subject: Re: Why does reading from /dev/urandom deplete entropy so much?
Date: Wednesday, December 5, 2007 - 5:23 am

On Tue, Dec 04, 2007 at 08:54:52AM -0800, Ray Lee wrote:

I didn't because I am not a regularly enough visitor of this mailing
list to know who is in charge of what.


Would a PRNG that is frequently re-seeded from true entropy be
unacceptable as well?

Greetings
Marc

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Messages in current thread:
Why does reading from /dev/urandom deplete entropy so much?, Marc Haber, (Tue Dec 4, 4:41 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Eric Dumazet, (Tue Dec 4, 7:16 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Adrian Bunk, (Tue Dec 4, 9:18 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Alan Cox, (Tue Dec 4, 9:47 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Ray Lee, (Tue Dec 4, 9:54 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Alan Cox, (Tue Dec 4, 9:55 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Matt Mackall, (Tue Dec 4, 11:01 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Eric Dumazet, (Tue Dec 4, 11:17 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Theodore Tso, (Tue Dec 4, 12:50 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Matt Mackall, (Tue Dec 4, 1:36 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Alan Cox, (Tue Dec 4, 1:40 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Mike McGrath, (Tue Dec 4, 1:48 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Matt Mackall, (Tue Dec 4, 2:08 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Mike McGrath, (Tue Dec 4, 2:18 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Theodore Tso, (Tue Dec 4, 3:03 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Mike McGrath, (Tue Dec 4, 3:12 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Mike McGrath, (Tue Dec 4, 3:23 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Matt Mackall, (Tue Dec 4, 3:33 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Marc Haber, (Wed Dec 5, 5:23 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Marc Haber, (Wed Dec 5, 5:29 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Theodore Tso, (Wed Dec 5, 6:33 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Mike McGrath, (Wed Dec 5, 7:26 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Theodore Tso, (Wed Dec 5, 7:49 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Marc Haber, (Wed Dec 5, 8:10 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Matt Mackall, (Wed Dec 5, 2:26 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Eric Dumazet, (Thu Dec 6, 12:02 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Matt Mackall, (Thu Dec 6, 9:09 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Bill Davidsen, (Thu Dec 6, 12:32 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Bill Davidsen, (Thu Dec 6, 1:08 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Mike McGrath, (Sat Dec 8, 10:33 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Matt Mackall, (Sat Dec 8, 10:43 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Jon Masters, (Sat Dec 8, 10:45 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Jon Masters, (Sat Dec 8, 10:47 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Jon Masters, (Sat Dec 8, 10:54 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Theodore Tso, (Sat Dec 8, 11:05 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Matt Mackall, (Sat Dec 8, 11:15 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Jeff Garzik, (Sat Dec 8, 11:31 am)
Re: entropy gathering (was Re: Why does reading from /dev/ ..., Matt Mackall, (Sat Dec 8, 12:53 pm)
Re: entropy gathering (was Re: Why does reading from /dev/ ..., Jeff Garzik, (Sat Dec 8, 1:04 pm)
Re: entropy gathering (was Re: Why does reading from /dev/ ..., Matt Mackall, (Sat Dec 8, 1:19 pm)
RE: Why does reading from /dev/urandom deplete entropy so ..., David Schwartz, (Sat Dec 8, 1:26 pm)
Re: entropy gathering (was Re: Why does reading from /dev/ ..., Theodore Tso, (Sat Dec 8, 1:31 pm)
Re: entropy gathering (was Re: Why does reading from /dev/ ..., Willy Tarreau, (Sat Dec 8, 1:42 pm)
Re: entropy gathering (was Re: Why does reading from /dev/ ..., Jeff Garzik, (Sat Dec 8, 1:47 pm)
Re: entropy gathering (was Re: Why does reading from /dev/ ..., Willy Tarreau, (Sat Dec 8, 2:07 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Adrian Bunk, (Sat Dec 8, 3:03 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Ismail , (Sat Dec 8, 3:10 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Theodore Tso, (Sat Dec 8, 4:46 pm)
Re: entropy gathering (was Re: Why does reading from /dev/ ..., Theodore Tso, (Sat Dec 8, 4:47 pm)
Re: entropy gathering (was Re: Why does reading from /dev/ ..., Jon Masters, (Sat Dec 8, 6:07 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Willy Tarreau, (Sat Dec 8, 10:21 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Ismail , (Sat Dec 8, 11:21 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Jon Masters, (Sat Dec 8, 11:52 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Theodore Tso, (Sun Dec 9, 5:31 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Matt Mackall, (Sun Dec 9, 9:16 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Pavel Machek, (Mon Dec 10, 9:37 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Matt Mackall, (Mon Dec 10, 4:35 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Theodore Tso, (Mon Dec 10, 6:34 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Bill Davidsen, (Tue Dec 11, 8:42 am)
Re: Why does reading from /dev/urandom deplete entropy so ..., Phillip Susi, (Tue Dec 11, 12:46 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Ray Lee, (Tue Dec 11, 1:02 pm)
RE: Why does reading from /dev/urandom deplete entropy so ..., David Schwartz, (Tue Dec 11, 10:34 pm)
Re: Why does reading from /dev/urandom deplete entropy so ..., Marc Haber, (Thu Dec 20, 3:27 pm)