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MD5/SHA1 Hash Database
Posted by: puRe
Date: December 11, 2006 04:40PM

Hi

I need some feedback for my recent project/website.
Its an quite huge database containing md5/sha1 hashes and their plain text counterpart.

http://md5.rednoize.com

What do you think about it ? How do you like the concept / website design ?

Greets
puRe

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Re: MD5/SHA1 Hash Database
Posted by: Ghozt
Date: December 11, 2006 04:53PM

I've used it a few times, it's definitely one of the better reverse MD5 sites. It has a nice and simple design too.

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Re: MD5/SHA1 Hash Database
Posted by: nEUrOO
Date: December 11, 2006 05:29PM

I totally agree with Ghotz, and now with Sha-1 (when the Sha-256?) it's really great.

nEUrOO -- http://rgaucher.info -- http://twitter.com/rgaucher

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Re: MD5/SHA1 Hash Database
Posted by: rsnake
Date: December 11, 2006 06:09PM

You know, I was thinking about a project similar to this only using bit-torrent and a bunch of servers... basically a distributed version of rainbow crack. Where huge chunks of the database were stored all over the world for ultra efficient redundancy and when you wanted a chunk (maybe a megabyte or so) that you knew had your chunk of the rainbow in it you could just call it down and look for it. That way no one is wasting gigs of download for a one-time lookup.

- RSnake
Gotta love it. http://ha.ckers.org

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Re: MD5/SHA1 Hash Database
Posted by: kuza55
Date: December 11, 2006 06:30PM

Awesome, there aren't many good sha1 lookups out there yet.

Its usually one of the first ones I check. Obviously it doesn't have all the hashes I need, but its got enough to be worthwhile.

Rsnake, its an interesting idea that I've thought ot before as well, but you need to scan most of it anyway, so wouldn't it be better to simply have everyone having a small chunk and sending everyone a request to have a look in their section of table rather than sending you the table.

And anyway, how would you know what chunk had the needed data in it? I always thought youdidn't know where it was untill you found it (which requires searhcing the whole thing).....

P.S. I've amassed a large list of lookups here: http://kuza55.blogspot.com/2006/10/online-reverse-lookup-tables-for.html

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Re: MD5/SHA1 Hash Database
Posted by: id
Date: December 11, 2006 08:06PM

Something like this... http://www.rainbowcrack.com ?

-id

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Re: MD5/SHA1 Hash Database
Posted by: jungsonn
Date: December 12, 2006 03:20AM

@RSnake

It's easy to compute a couple of million hashes, one could start with a random char algorithm, (yeah that's what they say are secure passwords, you know random, lol) and let it generate a few million strings and at the same time hash it into a db.
didn't try it, but i'm fairly sure you could generate plenty hashes.

I thought about making one, but alas time.

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Re: MD5/SHA1 Hash Database
Posted by: rsnake
Date: December 12, 2006 03:18PM

Yah, it's not hard to make them, it's just pricey to keep them all (disk space) and even more expensive to let people download all of them from you (bandwidth). I was trying to address the last part of the equation, which is let other people host it for you and use only what they need (or smaller chunks than the whole anyway).

- RSnake
Gotta love it. http://ha.ckers.org

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Re: MD5/SHA1 Hash Database
Posted by: jungsonn
Date: December 12, 2006 03:32PM

You could sell DVD's or downloadable ISO's for a fee :)

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Re: MD5/SHA1 Hash Database
Posted by: rsnake
Date: December 12, 2006 05:51PM

That's been done. http://www.rainbowtables.net/

- RSnake
Gotta love it. http://ha.ckers.org

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