This is a password policy module for VAX/VMS V5.4 and above. It augments the
functionality of the dictionary by looking for English (or English-like) words
using an algorithm. This then obviates the necessity of inserting local words
(e.g. product names) into the dictionary and also quite nicely detects many
foreign words.

The program is derived from code released to the Internet for Un*x by John
Nagle of Ford Aerospace for determining obvious passwords. The code checks for
a minimum of 1 non-English-like sequence of three characters for every nine
characters of password. This non-English sequence may be specified using
non-alpha characters or simply by a random alpha sequence.

The intention of this is to make guessing the password from watching the
Ethernet a much more interesting game. It is normally too easy to pick out
a word or word-like sequence from a network packet and this makes it much
harder.

Hugh Kennedy.