Enigma

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Enigma

  1. 1. SQCGroup Task Management Enigma
  2. 2. The Battlefield of Cryptology• Cryptographers – The Code Makers• Cryptanalysers – The Code Breakers
  3. 3. CIPHER• Any system used for hiding the message by replacing the letters of the message with some other letters
  4. 4. 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
  5. 5. 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
  6. 6. 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
  7. 7. 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
  8. 8. 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
  9. 9. Questions:1. dnim fo etats a eb dluohs ytilauq2. qtqyran uyuitst aiamaqi lslpnut ielotay3. dinyvql znantrzraq4. Wrigoehrsucsokntgteisces5. aplewcaiyfsifcoaltlioownss

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