Rip Van Winkle (1910 film) Catskill Mountains hundreds of years before, and had never been heard of since. The gnomes give Rip some magic schnapps to drink, and under its influence he goes to sleep for 20 years. When he awakes, he is an old man and in ragged clothes. His dog is dead, and his rifle has rusted away. He makes his way as best he can back to the village, and his own home. But there no one knows him. He finds his wife married to another man, his daughter grown to womanhood, and most of his old friends dead and gone. Rip,
Rip van Winkle cipher it with the random numbers he remembers were transmitted T ago, to recover the original plaintext message. The delay T represents the "key" and must be securely communicated only once. Ueli Maurer says the original Rip van Winkle cipher is completely impractical, but it motivated a new approach to provable security. J.L. Massey and I. Ingemarsson. "The Rip van Winkle cipher - a simple and provably computationally secure cipher with a finite key." In Proc. IEEE Int. Symp. Information Theory (Abstracts), page 146, 1985. Rip van Winkle cipher In cryptography, the Rip van Winkle cipher is a provably secure cipher