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| Subject: | Re: ADS Password Storage Protection |
|---|---|
| Date: | Wed, 19 Jul 2006 14:51:20 -0400 |
dave kleiman wrote:
Eric, I beg to differ. Are you suggesting that a 40-60 character passphrase "&Old King Cole was a merry old soul, a merry old soul was he; he called for his pipe, he called for his bowl!!" is not more secure than "$%Op13f987&"
In some ways yes, and in some ways no. :) The essence of the LM Hash vulnerability is being able to derive an entire pass phrase from a portion. Since pass phrases were hashed in "chunks" it was possible to crack a smaller chunk and potentially guess the rest from that information. If you discovered the text "garzel" and knew a pet's name was "garzelfloposaurus"... :) Your Old King Cole example suffers from the same weakness. It wouldn't take long to figure out the rest if we knew the "&Old Ki" part. And of course "&Old Ki" is less secure than "$%Op13f987&" in every way. -- Hand crafted on 19 July, 2006 at 14:41:28 EDT Does the name Pavlov ring a bell?
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