We began new trip system from yesterday. It is pretty secure the traditional one.
But don't panic. It has packward compatibility. You can use the traditional version
of trip when you specify the first 8 characters as your trip seed.
So, for example, if you use #(over 12 characters) as trip string, the system will
generate the new trip automatically.
The new trip is SHA-1 based and it generates 12 characters of hash string.
And the traditional trip is DES based and it generates 10 characters of hash string.
As of course you already know, DES is no longer secure, so we need introduce
the pretty good authentication system.
But it must has compatibility because the traditional version is widely deployed
already, and the "Moritapo" system (operated by Brazil inc.) uses it.
In short, you can use your original trip string by specifying the first 8 characters.
(after the ninth, ignored by nature, it derived from DES specification)
But I recommend users use the new version. It is pretty secure against reverse analyzing.
Regards,
-- Mumumu