MD5 for password hashes

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Richard Megginson wrote:
> Del wrote:
> 
>> Rich Megginson wrote:
>>
>>> We hope to have another binary release by the end of the week.  We've 
>>> just got a couple of bug fixes to go.
>>
>>
>>
>> Hi Rich,
>>
>> <prod>!
>>
>> http://directory.fedora.redhat.com/wiki/Download has pointers to new
>> releases (Fedora Directory Server 1.0) but the links all give me 404's.
>>
>> So are we getting closer to that binary release?
> 
> 
> Closer . . .

You do realize that MD5 has been _fully_ broken now, don't you? And I'm 
not talking about dictionary attacks; I'm talking about a fast 
mathematical attack vector on the algorithm itself.


An interesting demonstration here:

http://www.doxpara.com/?q=node&from=10


Collision generators here:

http://www.stachliu.com/collisions.html

The new and improved collision generator:

http://www.stachliu.com/md5coll.c

"Old (Wang, et al.) average run time on IBM P690 supercomputer - 1 hour"
	- out of reach for most people

"New average run time on P4 1.6ghz PC - 45 minutes"
	- within reach for nearly everyone


Now, storing md5 doesn't seem much safer than storing crypt.

--
mike




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