Section 4
The Pad
The one system that genuinely cannot be broken.
5 entries in The Pad
The whole register →- Unbreakable, and almost unusableKey as long as the message, truly random, used exactly once: provably secure and almost impossible to run at scale.
- What random has to meanNot merely unpredictable to you — unpredictable to everyone, forever.
- Reuse is fatalTwo messages on one pad page collapse the whole guarantee.
- DistributionThe key has to get there first, physically, and that is the whole problem.
- Destroying the pageA discipline that only works if it is absolute.