Cryptography

Cryptography

1. BACKGROUND

   • KRYPTOS
     • HIDDEN OR SECRET
       • USED GLOBALLY
         • TOGRAPHY
           • PHOTO/DRAWING
       • KNOWN TO ITS MAKERS
   • METHODS
     • CAESAR CIPHER
       • ROMAN CODE
       • 3 LETTERS BACK
         • ONE OF THE FIRST CODE
     • HIEROGLYPHICS
       • ANCIENT EGYPTIAN CODE
         • EARLY CODE
       • PICTURES ARE THE CODE

2. ENIGMA

   • COLOSSUS
     • ENIGMA MACHINE
       • GERMAN COMMUNICATION
     • CRACKING THE ENIGMA MACHINE
       • WORLD WAR 2
   • COMMUNICATION
     • SECRET CODE
       • CRACKING ENEMY CODE
     • GERMAN OCCUPATION

3. BARCODES

   • CHECK DIGITS
     • 12 DIGITS
       • LAST NUMBER CHECK DIGIT
       • COUNTRY CODE
   • DATA EXTRACTION
     • BARCODE SCANNER
       • BARCODE CHECKER
         • USED IN SHOPS
     • HAND HELD BARCODE READER
       • INFORMATION ON BARCODE
         • WEIGHT/SIZE
           • MANUFACTURER
             • ORIGINS
               • PRODUCT INDENTIFICATION

4. ECOMERCE

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