Art 1. Optical Design. The Open Internet: A Case for Net Neutrality. The Idea Swap. Visual Cryptography. What is Visual Cryptography Visual Cryptography is a special encryption technique to hide information in images in such a way that it can be decrypted by the human vision if the correct key image is used. The technique was proposed by Naor and Shamir in 1994.
Visual Cryptography uses two transparent images. One image contains random pixels and the other image contains the secret information. It is impossible to retrieve the secret information from one of the images. When the random image contains truely random pixels it can be seen as a one-time pad system and will offer unbreakable encryption. How Visual Cryptography works Each pixel of the images is divided into smaller blocks. In the table on the right we can see that a pixel, divided into four parts, can have six different states.If a pixel on layer 1 has a given state, the pixel on layer 2 may have one of two states: identical or inverted to the pixel of layer 1. We can now create the two layers. Additional information. Damn You Auto Correct! - Funny iPhone Fails and Autocorrect Horror Stories. How Many People Are In Space Right Now?
Matrix.swf from sembeo.com. Sieger-6833.swf from armorgames.com. Lucid Dreaming. By lucid dreaming, you can gain complete control over the one place that no one will ever care about: your imagination. Just The Facts Lucid dreaming is a scientifically proven phenomenon. While some get into lucid dreaming in order to treat chronic nightmares, or to experience all facets of the human experience, approximately 99.8% of people use it as a tool for cheap and interactive 3D porn. A lucid dream is a dream in which the dreamer is aware that he or she is dreaming, and he or she can even choose to control and manipulate his or her dream.
Dream, dream, dream. Lucid dreams are oftentimes random and fleeting occurrences, but with minimal effort you can learn to initiate them at will. How to Take Control of Your Dreams: So, you've doubled your weight over the past five years, you own a record-shattering collection of greasy pizza boxes and broken aspirations, and you're beginning to consider installing a toilet bowl in the place of your computer chair? The Tasks: 1. "What? " 2. Crazy rabbit (c) Andrius Kirvela - StumbleUpon. TV Theme Music and Songs - TelevisionTunes.com. Amazing Trick. FutureMe.org: letters to the future - StumbleUpon. How to turn "water" into marbles. The Scale of the Universe.