Let me mention that when we speak of a 128-bit RC-5 key or a 56-bit
DES key... this does not correlate to an RSA-based PGP key. For so-
called 'strong' encryption, an RSA key should have at least 512 bits
and probably 1024+ to be safe from funded attacks. (As I mentioned
before - a 384-bit PGP secret key was found already.)
Read http://www.eskimo.com/~joelm/pgp.txt for more info about it.
The moral is the same as always... use bigger keys.
- Mark