Messages in this thread | | | Date | Mon, 16 Mar 1998 02:08:21 -0500 (EST) | From | Jon Lewis <> | Subject | Re: kernel security questions |
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On Mon, 16 Mar 1998, Dave Wreski wrote:
> I should have mentioned that -- I realize its mostly garbage. I wrote a C > program that use isalpha() to determine its validity. So it reads three or > four chars, and picks a punctuation mark to prevent alphabetic passwords only. > > I just didn't realize how random it actually is, and if its really meant for > this purpose... And how about /dev/urandom?
urandom is the faster less secure random generator. Looking at a few dd's from it, I would think it would work as well for this purpose. Instead of using isalpha and friends, just make sure the char value is between 32 and 126. That'll give you a better range of usable but non-alpha characters.
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