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Merged
merged 2 commits into from
Dec 10, 2020
Merged

Update caesar_cipher.py #3860

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b3454a9
Update caesar_cipher.py
DjaouadNM Nov 2, 2020
11451ee
Add type hints
dhruvmanila Dec 10, 2020
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32 changes: 8 additions & 24 deletions ciphers/caesar_cipher.py
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Original file line number Diff line number Diff line change
@@ -1,7 +1,8 @@
from string import ascii_letters
from typing import Dict, Optional


def encrypt(input_string: str, key: int, alphabet=None) -> str:
def encrypt(input_string: str, key: int, alphabet: Optional[str] = None) -> str:
"""
encrypt
=======
Expand Down Expand Up @@ -79,7 +80,7 @@ def encrypt(input_string: str, key: int, alphabet=None) -> str:
return result


def decrypt(input_string: str, key: int, alphabet=None) -> str:
def decrypt(input_string: str, key: int, alphabet: Optional[str] = None) -> str:
"""
decrypt
=======
Expand Down Expand Up @@ -144,7 +145,7 @@ def decrypt(input_string: str, key: int, alphabet=None) -> str:
return encrypt(input_string, key, alphabet)


def brute_force(input_string: str, alphabet=None) -> dict:
def brute_force(input_string: str, alphabet: Optional[str] = None) -> Dict[int, str]:
"""
brute_force
===========
Expand Down Expand Up @@ -193,31 +194,18 @@ def brute_force(input_string: str, alphabet=None) -> dict:
# Set default alphabet to lower and upper case english chars
alpha = alphabet or ascii_letters

# The key during testing (will increase)
key = 1

# The encoded result
result = ""

# To store data on all the combinations
brute_force_data = {}

# Cycle through each combination
while key <= len(alpha):
# Decrypt the message
result = decrypt(input_string, key, alpha)

# Update the data
brute_force_data[key] = result

# Reset result and increase the key
result = ""
key += 1
for key in range(1, len(alpha) + 1):
# Decrypt the message and store the result in the data
brute_force_data[key] = decrypt(input_string, key, alpha)

return brute_force_data


def main():
if __name__ == "__main__":
while True:
print(f'\n{"-" * 10}\n Menu\n{"-" * 10}')
print(*["1.Encrypt", "2.Decrypt", "3.BruteForce", "4.Quit"], sep="\n")
Expand Down Expand Up @@ -248,7 +236,3 @@ def main():
elif choice == "4":
print("Goodbye.")
break


if __name__ == "__main__":
main()