Article View: comp.security.misc
Article #203Re: Problem with npasswd??
From: Doug Siebert
Date: Tue, 28 Jul 1992 01:22
Date: Tue, 28 Jul 1992 01:22
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2495 bytes
In article <1992Jul27.184324.14697@hubcap.clemson.edu> hubcap@hubcap.clemson.edu (System Janitor) writes: >Unless I am mistaken, npasswd doesn't check for everything crack does. >Even dropping the time consuming crypt part, it seems like it would >take an unacceptable amount of time to change your password if it were >checked against, say, an 800,000 word dictionary with 300 transmogrification >rulesets. Why should that be time consuming? Space consuming, yes? But not time consuming. Ever hear of a binary search? ;-) > >The point is, even if you use npasswd, a cracker will still get some of >your passwords. So what if they only get 10 instead of 200, they'll still >have some userids from which to launch their nefarious plans. >So, aren't you fooling yourself to think that npasswd like schemes >enhance your system security enough to make them worthwhile? With that kind of logic why bother with security at all? If you figure that unless you have extreme measures any given site on the Internet will be hit by crackers eventually you could just chuck all the security checking altogether, couldn't you? If you really do check a 800,000 word dictionary with 300 transmorgrifications each a cracker would have to work a REALLY long time to get even one password, making it more likely for someone to notice him. Its certainly an improvement over the alternative, isn't it? -- /-----------------------------------------------------------------------------\ | Doug Siebert | "I don't have to take this abuse | | Internet: dsiebert@icaen.uiowa.edu | from you - I've got hundreds of | | NeXTMail: dsiebert@chop.isca.uiowa.edu | people waiting in line to abuse | | ICBM: 41d 39m 55s N, 91d 30m 43s W | me!" Bill Murray, Ghostbusters | \-----------------------------------------------------------------------------/ Hi, I'm a .signature worm. I've already copied myself into your .signature.
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Newsgroups: comp.security.misc,alt.security,comp.unix.ultrix Path: arc1-ca.pugleaf.net!sparky!uunet!news.uiowa.edu!icaen.uiowa.edu!dsiebert From: dsiebert@icaen.uiowa.edu (Doug Siebert) Subject: Re: Problem with npasswd?? Sender: news@news.uiowa.edu (News) Message-ID: <1992Jul28.012207.27248@news.uiowa.edu> Date: Tue, 28 Jul 1992 01:22:07 GMT References: <PCL.92Jul27140810@black.oxford.ac.uk> <1992Jul27.184324.14697@hubcap.clemson.edu> Nntp-Posting-Host: l_cae14.icaen.uiowa.edu Organization: ISCA Lines: 33