250 http://inventwithpython.com/hacking
Email questions to the author: [email protected]
HACKING THE SIMPLE
SUBSTITUTION CIPHER
Topics Covered In This Chapter:
Word patterns, candidates, potential decryption letters, and cipherletter mappings.
The pprint.pprint() and pprint.pformat() functions
Building strings using the list-append-join process
Regular expressions
The sub() regex method
“Cypherpunks deplore regulations on cryptography,
for encryption is fundamentally a private act. The
act of encryption, in fact, removes information from
the public realm. Even laws against cryptography
reach only so far as a nation’s border and the arm of
its violence.”Eric Hughes, “A Cypherpunk’s Manifesto”, 1993
http://invpy.com/cypherpunk