mirror of https://github.com/postgres/postgres
b09c248bdd
installations whose pg_config program does not appear first in the PATH. Per gripe from Eddie Stanley and subsequent discussions with Fabien Coelho and others. |
||
|---|---|---|
| .. | ||
| Makefile | ||
| README.chkpass | ||
| chkpass.c | ||
| chkpass.sql.in | ||
| uninstall_chkpass.sql | ||
README.chkpass
$PostgreSQL: pgsql/contrib/chkpass/README.chkpass,v 1.3 2005/09/23 15:05:04 tgl Exp $ Chkpass is a password type that is automatically checked and converted upon entry. It is stored encrypted. To compare, simply compare agains a clear text password and the comparison function will encrypt it before comparing. It also returns an error if the code determines that the password is easily crackable. This is currently a stub that does nothing. I haven't worried about making this type indexable. I doubt that anyone would ever need to sort a file in order of encrypted password. If you precede the string with a colon, the encryption and checking are skipped so that you can enter existing passwords into the field. On output, a colon is prepended. This makes it possible to dump and reload passwords without re-encrypting them. If you want the password (encrypted) without the colon then use the raw() function. This allows you to use the type with things like Apache's Auth_PostgreSQL module. The encryption uses the standard Unix function crypt(), and so it suffers from all the usual limitations of that function; notably that only the first eight characters of a password are considered. D'Arcy J.M. Cain darcy@druid.net