This is re-review of the draft I already reviewed at 2011-03-03. The current draft contains some small changes done since, but I do not think it solves the issues I raised in my previous review: 1) The confidentiality is not mandatory even in the cases where the database contains sensitive elements (passwords), it is only SHOULD. 2) The privacy issues is not covered enough. The current version added specific pointer to the section 11.2 of RFC5239, but that only covers one very small privacy issue, i.e. anonymous access. It does not cover gathering sensitive privacy information in the database, i.e. who participated which conferences and with whom. My previous review can be found in http://www.ietf.org/mail-archive/web/secdir/current/msg02482.html -- kivinen at iki.fi