1992-12-15 - Re: ps -laxww for randmoness?timeofday for randmoness

Header Data

From: yanek@novavax.nova.edu (Yanek Martinson)
To: avalon@coombs.anu.edu.au
Message Hash: 31ea7a96411e8c63c66ababeb9ce2753e215f7bd5cc94d9a6402941e62b51f19
Message ID: <9212151555.AA10507@novavax.nova.edu>
Reply To: <9212151530.AA05832@coombs.anu.edu.au>
UTC Datetime: 1992-12-15 15:56:18 UTC
Raw Date: Tue, 15 Dec 92 07:56:18 PST

Raw message

From: yanek@novavax.nova.edu (Yanek Martinson)
Date: Tue, 15 Dec 92 07:56:18 PST
To: avalon@coombs.anu.edu.au
Subject: Re: ps -laxww for randmoness?timeofday for randmoness
In-Reply-To: <9212151530.AA05832@coombs.anu.edu.au>
Message-ID: <9212151555.AA10507@novavax.nova.edu>
MIME-Version: 1.0
Content-Type: text/plain


> 	gettimeofday(&tv, NULL);
> 	rand = tv.tv_usec + tv.tv_sec;

Someone trying to break your code could find out approximately when
the number was generated, then they would have a much smaller search
space to try.

Thread

• Return to December 1992

• Return to “avalon@coombs.anu.edu.au (Darren Reed)”
• Return to ““Mark W. Eichin” <eichin@cygnus.com>”
• Return to “pmetzger@shearson.com (Perry E. Metzger)”
• Return to “tytso@ATHENA.MIT.EDU (Theodore Ts’o)”

• Return to “yanek@novavax.nova.edu (Yanek Martinson)”

• 1992-12-14 (Sun, 13 Dec 92 17:04:43 PST) - ps -laxww for randmoness? - yanek@novavax.nova.edu (Yanek Martinson)
  • 1992-12-14 (Mon, 14 Dec 92 15:43:24 PST) - ps -laxww for randmoness? - pmetzger@shearson.com (Perry E. Metzger)
    • 1992-12-15 (Tue, 15 Dec 92 07:31:35 PST) - Re: ps -laxww for randmoness? - avalon@coombs.anu.edu.au (Darren Reed)
      • 1992-12-15 (Tue, 15 Dec 92 07:56:18 PST) - Re: ps -laxww for randmoness?timeofday for randmoness - yanek@novavax.nova.edu (Yanek Martinson)
        • 1992-12-15 (Tue, 15 Dec 92 09:05:15 PST) - Re: timeofday for randomnessness ? - avalon@coombs.anu.edu.au (Darren Reed)
      • 1992-12-16 (Tue, 15 Dec 92 23:15:59 PST) - Re: ps -laxww for randmoness? - tytso@ATHENA.MIT.EDU (Theodore Ts’o)
        • 1992-12-16 (Tue, 15 Dec 92 23:46:40 PST) - re: ps -laxww for randmoness? - “Mark W. Eichin” <eichin@cygnus.com>