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Date:      Mon, 25 Feb 2019 03:43:51 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 236010] rand(3) values strongly correlate with time while this doesn't have to be the case
Message-ID:  <bug-236010-227-3llwQxEFXG@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-236010-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-236010-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D236010

Kubilay Kocak <koobs@FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|                            |maintainer-feedback?(sectea
                   |                            |m@FreeBSD.org)
           Assignee|bugs@FreeBSD.org            |secteam@FreeBSD.org
                 CC|                            |secteam@FreeBSD.org,
                   |                            |security@FreeBSD.org
             Status|New                         |Open
           Keywords|                            |needs-qa
           Severity|Affects Only Me             |Affects Some People

--- Comment #1 from Kubilay Kocak <koobs@FreeBSD.org> ---
This sounds like a request to improve the algorithm, not necessarily achiev=
ing
'cryptographically secure', given these details from man rand(3):

     rand, srand, sranddev, rand_r =E2=80=93 bad random number generator

     <snip>

     The functions described in this manual page are not cryptographically
     secure.  Cryptographic applications should use arc4random(3) instead.

     These interfaces are obsoleted by random(3).

     <snip>

     For better generator quality, use random(3) or lrand48(3).

--=20
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