+1 to option d (host-based salt) but would need to consistently order the hostnames/addresses to guarantee that all processes on the same machine got the same salt by default.
+1 to option c (environment variable) as an override. And/or maybe an override on the command line. +1 to implementing the salt in the dictionary hash as an additive value. +0 to exposing the salt as a constant (3.3+ only) - or alternatively expose a hash function that just takes an existing hash and returns the salted hash. That would make it very easy for anything that wanted a salted hash to get one. For choosing the default salt, I think something like: a. If IPv6 is enabled, take the link-local address of the interface with the default route. Pretty much guaranteed not to change, can't be determined externally (salting doesn't need a secret, but it doesn't hurt), large number so probably a good salt. (If it is likely to change, a salt override should be being used instead). Don't use any other IPv6 address. In particular, never use a "temporary" IPv6" address like Windows assigns - multiprocessing could end up with instances with different salts. b. Take the FQDN of the machine. Tim Delaney
_______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
