password encryption on suse 7.3?

Hi! I use a standard SuSE 7.3, so passwords are stored in shadow. I wonder if they are encrypted with des or md5? The reason for my question is that I want to migrate the accounts to ldap, and to use the unix passwords in the ldap tree for mac os x clients. Os x doesn't support md5, so I have to make sure that we use des for user accounts. I even don't know where the encryption is configured, or is it defined at compile time in the shadow utilities? Thank you, CU Lars.