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Hidden Messages. The Warehouse Madrid Upper-Intermediate Class. Have you ever sent a secret message ?. How did you send it ? Was it through code or hidden in a secret place?. Steganography. Message is hidden in some way . Shave a messanger´s head Write it on scalp
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HiddenMessages TheWarehouse Madrid Upper-IntermediateClass
Haveyoueversent a secretmessage? • Howdidyousendit? • Wasitthroughcodeorhidden in a secret place?
Steganography • Messageishidden in someway. • Shave a messanger´s head • Writeitonscalp • Shaveitagain • Silk, swallowed a waxball • Hardboiledeggwrittenwithvinegar and alum • Invisible inkmadefrommilkorlemonjuice
Cryptology • Codeisagreedbetweenthesender and the receiver so thattheymeaning of themessageishidden