mirror of
https://github.com/TheAlgorithms/Python.git
synced 2024-11-24 05:21:09 +00:00
67 lines
1.9 KiB
Python
67 lines
1.9 KiB
Python
def encrypt(strng, key):
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encrypted = ""
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for x in strng:
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indx = (ord(x) + key) % 256
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if indx > 126:
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indx = indx - 95
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encrypted = encrypted + chr(indx)
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return encrypted
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def decrypt(strng, key):
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decrypted = ""
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for x in strng:
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indx = (ord(x) - key) % 256
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if indx < 32:
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indx = indx + 95
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decrypted = decrypted + chr(indx)
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return decrypted
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def brute_force(strng):
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key = 1
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decrypted = ""
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while key <= 94:
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for x in strng:
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indx = (ord(x) - key) % 256
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if indx < 32:
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indx = indx + 95
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decrypted = decrypted + chr(indx)
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print("Key: {}\t| Message: {}".format(key, decrypted))
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decrypted = ""
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key += 1
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return None
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def main():
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while True:
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print("-" * 10 + "\n**Menu**\n" + "-" * 10)
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print("1.Encrpyt")
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print("2.Decrypt")
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print("3.BruteForce")
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print("4.Quit")
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choice = input("What would you like to do?: ")
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if choice not in ["1", "2", "3", "4"]:
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print("Invalid choice, please enter a valid choice")
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elif choice == "1":
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strng = input("Please enter the string to be encrypted: ")
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key = int(input("Please enter off-set between 1-94: "))
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if key in range(1, 95):
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print(encrypt(strng.lower(), key))
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elif choice == "2":
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strng = input("Please enter the string to be decrypted: ")
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key = int(input("Please enter off-set between 1-94: "))
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if key in range(1, 95):
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print(decrypt(strng, key))
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elif choice == "3":
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strng = input("Please enter the string to be decrypted: ")
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brute_force(strng)
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main()
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elif choice == "4":
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print("Goodbye.")
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break
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if __name__ == "__main__":
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main()
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