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TLS / secure ldap transactions, userPassword hashing questions
- To: openldap-software@OpenLDAP.org
- Subject: TLS / secure ldap transactions, userPassword hashing questions
- From: Bill Johnstone <email@example.com>
- Date: Wed, 13 Jul 2005 17:21:39 -0700 (PDT)
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Like many, I'm planning to use OpenLDAP for user authentication and
NSS. However, after reading the documentation for OpenLDAP, I'm still
confused/uncertain on a couple of things.
1. I want to make sure all ldap sessions occur via TLS, enforced by
slapd, and since ldaps:// is considered deprecated (
http://www.openldap.org/faq/data/cache/605.html ), I'd like to make
sure my understanding of how to do this through slapd.conf is correct.
Since I won't be using SASL, I presume this means the authentication
mode is "simple"? If so, what is the difference between using:
Also, I've noticed sometimes keywords are mentioned in the
Administrator's guide that are not in the slapd.conf manpage, such as
the aforementioned "bind_simple_unprotected" . Is there a similar
require keyword that specifically refers to TLS (rather than just
"strong", for which both SASL and TLS qualify)?
2. In an earlier message on the list (
it was asked if there was a way to specify a "stronger" hash, such as
SHA-256 for the userPassword. The response directed the inquirer to
read the slapd.conf manpage's password-hash section. Looking there, I
see no mention of "stronger" hashes than standard SHA (or SSHA) nor if
it is possible to use an external module which supplies the hashing
code. Ordinarily I would assume that since nothing else was said in
the manpage that unless I were to modify the slapd code, this would be
impossible. However, given the slapd.conf manpage is not canonical,
can someone actually tell me whether or not it is possible?
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