"David W. Schultz" <[email protected]> writes: > But even with a 32 bit counter attacks are still possible, it just takes > more time. If the count always starts at zero, then I can still build a > library of packets and when they will be good. Usable the next time the > system restarts. Starting with a random count would help with that.
Thanks much for reviewing the system; we can change the timestamps to 64 bits and then go find enough entropy to seed that to a random value. The latter piece will take a bit of searching; entropy in deterministic systems is a rare commodity, but we do have ADC pins and a radio receiver. Time for some research. -- -keith
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