age ~72
from Mesa, AZ
 
                Author
David A. Kahn
ISBN #
0819404241
 
                 
                 
                Author
David S. Kahn
ISBN #
0375752722
 
                Author
David S. Kahn
ISBN #
0375752730
 
                 
                 
                 
                     
                     
                …"The solution", writes historian David Kahn, "was Rejewski's own stunning achievement, one that elevates him to the pantheon of the greatest cryptanalysts of all time."[18] Rejewski used a mathematical theoremthat two permutations are conjugate if and only if they have the same cycle structu...
 
                     
                     
                     
                     
                     
                     
                     
                     
                     
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                     
                     
                     
                     
                     
                     
                     
                     
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                        