[Pauldotcom] OpenLDAP userPassword field

[Matt Wilbur]

David,

I initially sent this as a fix:
echo -n "W6ph5Mm5Pz8GgiULbPgzG37mj9g=" |base64 -d |hexdump -v -e '/1 "%x"'

It SEEMED to work, returning this:
5baa61e4c9b93f3f68225b6cf8331b7ee68fd8

Byte Bucket, in moderating, noticed that I still didn't have it quite right
(I'd added -v to hexdump).. he pointed out that the hexdump format string
needs to be "%02x", vice "%x".. (it dropped the 0's)..

echo -n "W6ph5Mm5Pz8GgiULbPgzG37mj9g=" |base64 -d |hexdump -v -e '/1 "%x" '
5baa61e4c9b93f3f0682250b6cf8331b7ee68fd8

should do the trick. Thank you Byte for pointing out my glaring inattention
to detail :)

-Matt

On Wed, Jun 9, 2010 at 6:04 PM, David Porcello
<DPorcello at vermontmutual.com>wrote:

> Hi all,
>
> Does anyone know of a way to decode OpenLDAP's non-salted userPassword
> values from this:
> {SHA}W6ph5Mm5Pz8GgiULbPgzG37mj9g=
>
> To this? (the underlying SHA hash):
> 5baa61e4c9b93f3f0682250b6cf8331b7ee68fd8
>
> I know it needs to be base64 decoded to hex bytes, but I can't figure out
> how to do this without base64 decoding to ASCII first, then converting that
> to hex:
>
> echo -n W6ph5Mm5Pz8GgiULbPgzG37mj9g= |base64 -d - |hexdump -e '/1 "%x" '
>
> The problem with decoding to ASCII first is some of the output is control
> chars, such as line breaks, which hexdump isn't handling properly:
>
> What I'm hoping for:
> 5baa61e4c9b93f3f0682250b6cf8331b7ee68fd8
>
> What hexdump is giving me:
> 5baa61e4c9b93f*  68225 b6cf8331b7ee68fd8
>
> As you can see parts of the hash are lost in translation. I've been working
> on this for weeks and I'm out of ideas (short of learning Java/C). I found
> an online converter that can do this properly (
> http://home1.paulschou.net/tools/xlate/), but I need to decode 10,000+
> values..
>
> Help!!
> d.
>
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