secring and dropbox

[Kara]

====

Reference Robert J. Hansen's 19 Jul 2011, 1504 (-0700), "Re: secring
and dropbox":

>> Is it a bad idea to place your secring in dropbox?

> Depends entirely on the strength of your passphrase.  With a strong
> enough passphrase you could publish your secret certificates in the
> newspaper of your choice and still be confident of their safety.

Using a decent password generator and specifying a mix of upper and
lower case letters, digits, and special characters, how many total
characters -- as a minimum -- would you recommend such a password be?

Any particular password generator program you would recommend?

====