On Thu, 28 Feb 2002, Morlock Elloi wrote: > As for PRNGs, if you can exchange million bits securely, the desired > unicity distance (based on your paranoia level) will determine how often > you must re-key.
Given system lifetime of a decade, and the rate of traffic (clearly a TBps router leaks more than a few email messages), you might not have to rekey at all. > I am not sure that there is a *simple* prng with 10^6 bit state. Feeding Okay, so there seems to be a niche for it. The simplicty refers to the algorithm. Of course you have to represent the state, and a parallel implementation would of course add a constant factor to each bit of state. > million bits to 1-DES 64 bits at a time and using the output as the key for the > next cycle could be one way for dilluting entropy.
