Ivan Ferreira wrote: > If i'm not wrong, this is because these encription algorithms uses an > "initialization vector (IV)". An IV for MD5? I seriously doubt that. Note that MD5 is not reversible encryption. It's a hash algorithm (one-way encryption). Maybe you're talking about adding a salt? But this would be password scheme {SMD5} not {MD5}. BTW: {SSHA} should be preferred! To make things more clear here are good explanations which also apply to FDS: http://www.openldap.org/faq/data/cache/419.html Ciao, Michael.