topics 2005 by date



 01   
 02   congruence mod systems
 03   Theorems
03a 
03b 
 04   new ciphers
 05   ciphers
 06   cryptanalysis
 07   cryptanalysis of Hill Cipher
 08   cryptanalysis of Vigenere Cipher-example

A1  group theory definitions, theorems
A2  famous unsolved ciphers
A3  gcd algorithm
A4  extended gcd algorithm (mult. inverse). 
A5 fast exponentiation algorithm



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