2/09


     1. RC4

     2. finite fields

     3. entropy (three handouts)...information theory, motivation, 

     4. derivation of unicity distance

     5. famous unsolved ciphers

     6. running key ciphers

     6a  LFSR notes

     7  enigma. 

     8. algorithms, gcd. etc. 

     8a Lucifer - the method

     9. mathematical background     

     10. classical cryptography


     11. compendium of NP optimization problems

     12   

     13  Chinese remainder theorem

     14. Knapsack cipher

     15.  manipulating bits in C  (available but not handed out)

     16.


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    previous semesters




     1. HDO-1   groups, rings, fields      2/7

     2. HDO-2   FIPS-140                   2/7

     3. HDO-3   LFSR example               2/7

     4. HDO-4   Unsolved Ciphers           2/7

     5. HDO-5   Index of coincidence       2/14

     6. HDO-6   Fractionated Morse code    2/14

     7. HDO-7   computing in Galois fields 2/14

     8. HD0-8   Columnar transposition     2/21

     9. HDO-9   Manipulating bits in C     3/2

    10. HDO-10  information theory         3/2

    11. HDO-11  NP Complete                3/2

    12. HDO-12  NP Complete II             3/7

    13. HDO-13  exam answers               3/9

    14. HDO-14  AES                        3/9

    15. HDO-15 Primality tests, etc.       4/6

    16. HDO-16 various factoring examples  4/6


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   handouts will be given out on some of the topics below

   1. Fractionated Morse  *   

   2. index of coincidence    
       table IC

   2a, table of digrams       

   3. running key ciphers

   4. transpositions

   5. Vigenere cryptanalysis  

   6. transposition cryptanalysis 

   7. Beale newsletter 1987

   8. LFSR (1)                

   9. LFSR (2)                

  10. Lucifer  - the method   


  11. DES history

  12. DES

  13 Code War