Enigma
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Enigma

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Enigma Enigma Presentation Transcript

  • SQCGroup Task Management Enigma
  • The Battlefield of Cryptology• Cryptographers – The Code Makers• Cryptanalysers – The Code Breakers
  • CIPHER• Any system used for hiding the message by replacing the letters of the message with some other letters
  • Types of Ciphers1. Simple Reverse Cipher:Reverse the sequence of letters and write from end to beginning.E.g.: this is a simple reverse cipher rehpic esrever elpmis a si siht
  • Types of Ciphers2. Rail Fence Cipher:Write the letters in odd places first followed by the letters in even places.E.g. rail fence cipher r i f n e i h r a l e c c p e rifneihraleccpe
  • Types of Ciphers3. Alternation Cipher:Divide the message into two parts containing equal number of letters. Introduce the letters in second part between the letters in the first part.E.g. alternation cipher a l t e r n a t i o n c i p h e r aolntceirpnhaetri
  • Types of Ciphers4. Scytale Cipher:The sequence of letters are written vertically in finite number of rows and columns. Then the rows are written one after the other.E.g. this is an example of scytale cipher t s a o t i h a m f a p i n p s l h s e l c e e i x e y c r tsaoti hamfap inpslh selcee ixeycr
  • Types of Ciphers5. Caesar Cipher:Here each letter is substituted with some other letter in the alphabetical order.E.g. this is a caesar cipher key: abcdefghijklmnopqrstuvwxyz bcdefghijklmnopqrstuvwxyza uijt jt b dbftbs djqifs
  • Questions:1. dnim fo etats a eb dluohs ytilauq2. qtqyran uyuitst aiamaqi lslpnut ielotay3. dinyvql znantrzraq4. Wrigoehrsucsokntgteisces5. aplewcaiyfsifcoaltlioownss