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SLAPPASSWD(8C)                                                  SLAPPASSWD(8C)



NAME
       slappasswd - OpenLDAP password utility

SYNOPSIS
       /usr/sbin/slappasswd  [-v] [-u] [-s secret|-T file] [-h hash] [-c salt-
       format]

DESCRIPTION
       Slappasswd is used to generate an userPassword value suitable  for  use
       with ldapmodify(1) or slapd.conf(5) rootpw configuration directive.

OPTIONS
       -v     enable verbose mode.

       -u     Generate  RFC  2307  userPassword  values (the default).  Future
              versions of this program may generate  alternative  syntaxes  by
              default.  This option is provided for forward compatibility.

       -s secret
              The secret to hash.  If this and -T are absent, the user will be
              prompted for the secret to hash.  -s and -T and mutually  exclu-
              sive flags.

       -T file
              Hash  the  contents of the file.  If this and -s are absent, the
              user will be prompted for the secret to hash.   -s  and  -T  and
              mutually exclusive flags.

       -h scheme
              If -h is specified, one of the following RFC 2307 schemes may be
              specified: {CRYPT},  {MD5},  {SMD5},  {SSHA},  and  {SHA}.   The
              default is {SSHA}.

              {SHA}  and {SSHA} use the SHA-1 algorithm (FIPS 160-1), the lat-
              ter with a seed.

              {MD5} and {SMD5} use the MD5 algorithm (RFC  1321),  the  latter
              with a seed.

              {CRYPT} uses the crypt(3).

              {CLEARTEXT}  indicates  that the new password should be added to
              userPassword as clear text.

       -c crypt-salt-format
              Specify the format of the salt passed to crypt(3) when  generat-
              ing  {CRYPT}  passwords.   This string needs to be in sprintf(3)
              format and may include one (and only one) %s  conversion.   This
              conversion  will  be substituted with a string random characters
              from [A-Za-z0-9./].  For example, "%.2s" provides a two  charac-
              ter salt and "$1$%.8s" tells some versions of crypt(3) to use an
              MD5 algorithm and provides 8 random  characters  of  salt.   The
              default is "%s", which provides 31 characters of salt.

LIMITATIONS
       The practice storing hashed passwords in userPassword violates Standard
       Track (RFC 2256) schema specifications and may hinder interoperability.
       A  new  attribute type, authPassword, to hold hashed passwords has been
       defined (RFC 3112), but is not yet implemented in slapd(8).

SECURITY CONSIDERATIONS
       Use of hashed passwords does  not  protect  passwords  during  protocol
       transfer.   TLS  or  other  eavesdropping protections should be inplace
       before using LDAP simple bind.  The hashed password  values  should  be
       protected as if they were clear text passwords.

SEE ALSO
       ldappasswd(1),  ldapmodify(1), slapd(8) slapd.conf(5) RFC 2307 RFC 2256
       RFC 3112

       "OpenLDAP Administrator's Guide" (http://www.OpenLDAP.org/doc/admin/)

ACKNOWLEDGEMENTS
       OpenLDAP  is  developed  and  maintained  by   The   OpenLDAP   Project
       (http://www.openldap.org/).   OpenLDAP  is  derived  from University of
       Michigan LDAP 3.3 Release.



OpenLDAP 2.1.22                   06-26-2003                    SLAPPASSWD(8C)