If they ever build such a computer (or 1.000.000 of them) what would that mean for
today's key lengths ?
I am curious how long a computer capable of a septillion operations per second would
take to crack one 128 bit or 256 bit key.
Or a RSA 1024 or 2048 bit key for that matter ...
take a
I will not participate in activities that require me to identify
myself to the government, or to be pre-vetted for attendance.
Just about all of the private-sector conferences I have attended
require registration. The same goes for any decent hotel. Does this
bother me? Sure it does, but
Isn't Elliptic-Curve patent-encumbered?
I think we went through this a few weeks ago. Nope. Fortunately, ECC
per-se is not patent encumbered. Scott Vanstone makes much of that
in his ECC dog and pony show.
Of course, free ECC does not mean some nice optimizations aren't
patented.
The usual good solution is to make a human type in a secret.
Of course, the downside is that the appropriate human must be present
for the system to come up properly.
In some situations, the system must be able to boot into a working
state. That way, even if somebody accidentally trips the
The problem is doing it in a way that is affordable and doesn't
require an army.
[snip]
I'm not sure what changes in your argument if you delete the word
physical. Perhaps we should all just give up with this security
nonsense.
:)
Agreed. It's not about perfect security, it's about
I'm passing some data through a web client [applet-like] and am planning
on using some crypto to help ensure the data's integrity when the applet
sends it back to me after it has been processed.
Help us to understand your threat model. Do you trust the user and
his/her machine, but are
