.TH SLAPD-PW-SHA2 5 "RELEASEDATE" "OpenLDAP LDVERSION"
.\" Copyright 2015-2021 The OpenLDAP Foundation All Rights Reserved.
.\" Copying restrictions apply.  See COPYRIGHT/LICENSE.
.\" $OpenLDAP$
.SH NAME
slapd-pw-sha2 \- SHA-2 password module to slapd
.SH SYNOPSIS
ETCDIR/slapd.conf
.RS
.LP
.B moduleload
.B pw-sha2
.RE
.SH DESCRIPTION
.LP
The
.B pw-sha2
module to
.BR slapd (8)
provides support for the use of SSHA-512, SSHA-384, SSHA-256, SHA-512,
SHA-384 and SHA-256 from the SHA-2 family (FIPS 180-2) of hash functions
in hashed passwords in OpenLDAP.
.LP
It does so by providing the following additional password schemes for use in slapd:
.RS
.TP
.B {SSHA256}
SHA-256 with salt, giving hash values of 256 bits length
.TP
.B {SHA256}
plain SHA-256 giving hash values of 256 bits length
.TP
.B {SSHA384}
SHA-384 with salt, giving hash values of 384 bits length
.TP
.B {SHA384}
plain SHA-384 giving hash values of 384 bits length
.TP
.B {SSHA512}
SHA-512 with salt, giving hash values of 512 bits length
.TP
.B {SHA512}
plain SHA-512 giving hash values of 512 bits length
.RE

.SH CONFIGURATION
The
.B pw-sha2
module does not need any configuration.
.LP
After loading the module, the password schemes
{SSHA256}, {SSHA384}, {SSHA512}, {SSHA256}, {SHA384}, and {SHA512}
will be recognised in values of the
.I userPassword
attribute.
.LP
You can then instruct OpenLDAP to use these schemes when processing
the LDAPv3 Password Modify (RFC 3062) extended operations by using the
.BR password-hash
option in
.BR slapd.conf (5).

.SH NOTES
If you want to use the schemes described here with
.BR slappasswd (8),
don't forget to load the module using its command line options.
The relevant option/value is:
.RS
.LP
.B \-o
.BR module\-load = pw-sha2
.LP
.RE
Depending on
.BR pw-sha2 's
location, you may also need:
.RS
.LP
.B \-o
.BR module\-path = \fIpathspec\fP
.RE

.SH EXAMPLES
All of the userPassword LDAP attributes below encode the password
.RI ' secret '.
.EX
.LP
userPassword: {SHA512}vSsar3708Jvp9Szi2NWZZ02Bqp1qRCFpbcTZPdBhnWgs5WtNZKnvCXdhztmeD2cmW192CF5bDufKRpayrW/isg==
.LP
userPassword: {SHA384}WKd1ukESvjAFrkQHznV9iP2nHUBJe7gCbsrFTU4//HIyzo3jq1rLMK45dg/ufFPt
.LP
userPassword: {SHA256}K7gNU3sdo+OL0wNhqoVWhr3g6s1xYv72ol/pe/Unols=
.EE
.LP
To make {SSHA512} the password hash used in Password Modify extended operations,
simply set this line in slapd.conf(5):
.EX
.LP
password-hash   {SSHA512}
.EX

.SH SEE ALSO
.BR slapd.conf (5),
.BR ldappasswd (1),
.BR slappasswd (8),
.BR ldap (3),
.LP
"OpenLDAP Administrator's Guide" (http://www.OpenLDAP.org/doc/admin/)
.LP

.SH ACKNOWLEDGEMENTS
This manual page has been written by Peter Marschall based on the
module's README file written by Jeff Turner.
.LP
.B OpenLDAP
is developed and maintained by The OpenLDAP Project (http://www.openldap.org/).
.B OpenLDAP
is derived from University of Michigan LDAP 3.3 Release.