rebuild passwirds

[Martin Schulte <schulte-martin@web.de>]

Hi,

i've still use one old lenny based debian-edu server. I want to make a 
clean installation of a squeeze based tjener, than i want to restore the 
homefolders and add all users. Therefor i need all passwords from ldap. 
If i create new passwords, i use the same scheme, one english word (from 
a file with nearly 1000 words) + 2 digits. So there are passwords like 
'hello31' or 'thank87'. Most user (99%) never changed there password.

I''ve a perl-script which generates a array with all usernames assign to 
there ssha crypted password, like 'john' => 
'{SSHA}U2GnXIHejG0QfGCLeeG748tZj7k4M2Nk'. I also can generate words a 
descriped above. Now i'm looking for an algorithm to  crypt the clear 
word a check, if it is equals to the password-hash. Or in other words, i 
need the same algorithem the openldap server use, when he authenticates 
a user with his passoword.

Can someone help me?

Thanks, Martin