Full Disclosure mailing list archives
RE: Senior M$ member says stop using passwords completely!
From: "Thomas G O'Reilly" <tgoreilly () cmsenergy com>
Date: Wed, 20 Oct 2004 11:46:37 -0400
Actually in a Win2003 domain the LM hashes are eliminated by default. In a 2000 domain you can add the NoLMHash value to HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\LSA This prevents the old LM hashes from being stored from the next time passwords are changed. "Todd Towles" <toddtowles () brookshires com> Sent by: full-disclosure-admin () lists netsys com 10/19/2004 04:42 PM To: "Pavel Kankovsky" <peak () argo troja mff cuni cz>, <full-disclosure () lists netsys com> cc: Subject: RE: [Full-disclosure] Senior M$ member says stop using passwords completely! I was under the understand that passwords of over 14 characters were stored with a more secure hash, therefore 14 characters passwords were harder to crack, due to the more secure hash. Windows will create two different hashes for passwords shorting than 14 characters, I do believe. Just use a non-printable character in your password and cracking is useless...if they crack it, they can't read what they cracked. ;)
-----Original Message----- From: full-disclosure-admin () lists netsys com [mailto:full-disclosure-admin () lists netsys com] On Behalf Of Pavel Kankovsky Sent: Sunday, October 17, 2004 2:21 PM To: full-disclosure () lists netsys com Subject: Re: [Full-disclosure] Senior M$ member says stop using passwords completely! On Sat, 16 Oct 2004, Frank Knobbe wrote:It's a nice recommendation of MS to make (to use long passphrases instead of passwords). But I don't consider 14 chars a "passphrase". Perhaps they should enable more/all password components tohandle muchlonger passwords/phrases.A passphrase consisting of 7 words and 12 bits of entropy per a word is as guessable as a password with 14 characters and 6 bits of entropy per a character. You get 84 bits of total entropy in both cases. The only advantage of passphrases is that lusers might find long random sequences of words easier to remember than long random sequences of characters. (But wait: 12 bits of entropy per a word--this is equivalent to a uniform choice of one word out of 4096. 4 thousand? That might exceed an average luser's vocabulary by an order of magnitude! ;>) --Pavel Kankovsky aka Peak [ Boycott Microsoft--http://www.vcnet.com/bms ] "Resistance is futile. Open your source code and prepare for assimilation." _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html
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Current thread:
- Re: Senior M$ member says stop using passwords completely!, (continued)
- Re: Senior M$ member says stop using passwords completely! Maarten (Oct 20)
- Re: Senior M$ member says stop using passwords completely! Georgi Guninski (Oct 21)
- Re: Senior M$ member says stop using passwords completely! Danny (Oct 21)
- RE: Senior M$ member says stop using passwords completely! Banta, Will (Oct 19)
- RE: Senior M$ member says stop using passwords completely! Frank Knobbe (Oct 19)
- RE: Senior M$ member says stop using passwords completely! Todd Towles (Oct 19)
- RE: Senior M$ member says stop using passwords completely! Aviv Raff (Oct 20)
- Re: Senior M$ member says stop using passwords completely! stephane nasdrovisky (Oct 20)
- RE: Senior M$ member says stop using passwords completely! James . McKinlay (Oct 20)
- RE: Senior M$ member says stop using passwords completely! Todd Towles (Oct 20)
- RE: Senior M$ member says stop using passwords completely! Thomas G O'Reilly (Oct 20)