Full Disclosure mailing list archives
Re: Month of Random Hashes: DAY THREE
From: Brian Dessent <brian () dessent net>
Date: Fri, 15 Jun 2007 13:17:24 -0700
"M.B.Jr." wrote:
but only one string can produce that md5 hash signature, that sha1 hash signature, fucking that sha256 hash signature, fucking that <any_other> hash signature, etc...
False. If you specify multiple hash algorithms for a string it's conceptually equivalent to making up a new hash function that is defined as having the output that is the concatenated outputs of md5, sha1, sha256, and whatever else our crapflooder is posting. But this new composite-hash function still has an infinite number of inputs and a finite number of outputs, just like any other hash function. And thus for any one particular output value there are still an infinite number of corresponding inputs. They may be harder to find and they may be orders of magnitude larger, but they still exist at the mathematical level. Brian _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- Month of Random Hashes: DAY THREE Month of Random Hashes (Jun 12)
- Re: Month of Random Hashes: DAY THREE Dëêþàñ Çhäkrãvârthÿ (Jun 13)
- Re: Month of Random Hashes: DAY THREE Brian Dessent (Jun 13)
- Re: Month of Random Hashes: DAY THREE Guasconi Vincent (Jun 14)
- Re: Month of Random Hashes: DAY THREE Tõnu Samuel (Jun 15)
- Re: Month of Random Hashes: DAY THREE M . B . Jr . (Jun 15)
- Re: Month of Random Hashes: DAY THREE Brian Dessent (Jun 15)
- Re: Month of Random Hashes: DAY THREE Pavel Kankovsky (Jun 16)
- Re: Month of Random Hashes: DAY THREE Valdis . Kletnieks (Jun 15)
- Re: Month of Random Hashes: DAY THREE Jason Miller (Jun 15)
- Re: Month of Random Hashes: DAY THREE M . B . Jr . (Jun 15)
- Re: Month of Random Hashes: DAY THREE Brian Dessent (Jun 13)
- Re: Month of Random Hashes: DAY THREE William Lefkovics (Jun 16)
- Re: Month of Random Hashes: DAY THREE M . B . Jr . (Jun 16)
- Re: Month of Random Hashes: DAY THREE Dëêþàñ Çhäkrãvârthÿ (Jun 13)
- <Possible follow-ups>
- Fwd: Month of Random Hashes: DAY THREE rashid mohammed (Jun 15)
- Re: Fwd: Month of Random Hashes: DAY THREE Month of Random Hashes (Jun 15)
- Re: Month of Random Hashes: DAY THREE Month of Random Hashes (Jun 15)
- Re: Month of Random Hashes: DAY THREE Month of Random Hashes (Jun 15)