>... кто вынужден реализовывать "опущенную сверху политику"
> (например, в чем-то подобный стандарт есть в американских военных ведомствахhttp://www.itl.nist.gov/fipspubs/app-e.htm
http://www.iwar.org.uk/comsec/resources/standards/rainbow/CS...
.4 Password Space
Password length and alphabet size are factors in computing the maximum
password space requirements. Equation [2] expresses the relationship between
S, A, and M where:
S = password space
A = number of alphabet symbols
M = password length
S = AM
[2]
To illustrate: If passwords consisting of 4 digits using an alphabet of 10
digits (e.g., 0-9) are to be generated:
S = 104
That is, 10,000 unique 4-digit passwords could be generated. Likewise, to
generate random 6-character passwords from an alphabet of 26 characters (e.g.,
AZ):
S = 266
That is 3.089 * 108 unique 6-character passwords could be
generated.
"User-friendly" passwords (sometimes referred to as passphrases) could be
generated by using, for example, 3 symbols from an alphabet (dictionary) of
2000 symbols, where each symbol was a pronounceable word of 4, 5, or 6
characters.
Using equation [2] and setting:
A = 2000 symbols (words)
M = 3
Then S = 20003
That is, 8 * 109 unique passwords could be generated where each password was
made up of 3 words taken from a dictionary of 2000 words.
>- они уже интересовались, кажется, в pam-list'е как же им его реализовать
> на pam_passwdqc...
Бэкдору для ФСБ оставь, грамоту дадут. :)