ciphers.simple_keyword_cypher

Functions

create_cipher_map(→ dict[str, str])	Returns a cipher map given a keyword.
decipher(→ str)	Deciphers a message given a cipher map
encipher(→ str)	Enciphers a message given a cipher map.
main(→ None)	Handles I/O
remove_duplicates(→ str)	Removes duplicate alphabetic characters in a keyword (letter is ignored after its

Module Contents

ciphers.simple_keyword_cypher.create_cipher_map(key: str) → dict[str, str]

Returns a cipher map given a keyword.

Parameters:

key – keyword to use

Returns:

dictionary cipher map

ciphers.simple_keyword_cypher.decipher(message: str, cipher_map: dict[str, str]) → str

Deciphers a message given a cipher map

Parameters:

• message – Message to decipher

• cipher_map – Dictionary mapping to use

Returns:

Deciphered string

>>> cipher_map = create_cipher_map('Goodbye!!')
>>> decipher(encipher('Hello World!!', cipher_map), cipher_map)
'HELLO WORLD!!'

ciphers.simple_keyword_cypher.encipher(message: str, cipher_map: dict[str, str]) → str

Enciphers a message given a cipher map.

Parameters:

• message – Message to encipher

• cipher_map – Cipher map

Returns:

enciphered string

>>> encipher('Hello World!!', create_cipher_map('Goodbye!!'))
'CYJJM VMQJB!!'

ciphers.simple_keyword_cypher.main() → None

Handles I/O

Returns:

void

ciphers.simple_keyword_cypher.remove_duplicates(key: str) → str

Removes duplicate alphabetic characters in a keyword (letter is ignored after its first appearance).

Parameters:

key – Keyword to use

Returns:

String with duplicates removed

>>> remove_duplicates('Hello World!!')
'Helo Wrd'