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Caesar cipher. The action of a Caesar cipher is to replace each plaintext letter with a different one a fixed number of places down the alphabet. The cipher illustrated here uses a left shift of 3, so that (for example) each occurrence of E in the plaintext becomes B in the ciphertext. In cryptography, a Caesar cipher, also known as Caesar's ...
A recording of The Gong numbers station, run by the National People's Army of the German Democratic Republic, from 1988. A numbers station is a shortwave radio station characterized by broadcasts of formatted numbers, which are believed to be addressed to intelligence officers operating in foreign countries. [1]
In colloquial use, the term "code" is often used to mean any method of encryption or concealment of meaning. However, in cryptography, code has a more specific meaning: the replacement of a unit of plaintext (i.e., a meaningful word or phrase) with a code word (for example, "wallaby" replaces "attack at dawn"). A cypher, in contrast, is a ...
As Don suggests, remember the five R's: Reset your iPod Find out how to reset your model here. Retry with a different port. Perhaps the iPod itself isn't to blame? Restart your computer. Reinstall ...
To set a passcode that can include numbers, letters, and special characters, go to Settings > General > Passcode Lock. If you've grown weary of Touch ID and would like to do this on an iPhone 5s ...
Apple now has a nice little support article available that explains all the subtleties of the 2nd generation iPod shuffle light patterns and what they mean, complete with easy-to-follow dot patterns.
Step 2: Restoring to factory conditions. If your iPod worked fine the day you got it, but is now acting possessed, then it’s possible it has a problem with its file structure or software. This ...
The pigpen cipher uses graphical symbols assigned according to a key similar to the above diagram. [1]The pigpen cipher (alternatively referred to as the masonic cipher, Freemason's cipher, Rosicrucian cipher, Napoleon cipher, and tic-tac-toe cipher) [2] [3] is a geometric simple substitution cipher, which exchanges letters for symbols which are fragments of a grid.