31 lines
958 B
Markdown
31 lines
958 B
Markdown
# Python Caeser Cipher Helper
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# What's That?
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This script gives you tools to manipulate text with the Caeser Cipher.
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It'll take any input you give it, filter it and process it as you want (encrypt or decrypt) and will attempt to crack it if you don't know the shift.
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This is a fun tool, not security. The Caeser Cipher was broken in A.D. 800 (or earlier) for longer messages unless you use a one time pad and a randomly generated shift. But, it's fun to break and manipulate.
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This tool is a work in progress.
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# Requirements
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Python `=>` 3.5.2
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# Usage
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### Encrypt
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`python3 caeser-cipher.py encrypt [secretmessage] [shift]`
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For example: `python3 caeser-cipher.py encrypt "Hi, how are you?" 3"`
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### Decrypt
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`python3 caeser-cipher.py decrypt "encryptedtext"`
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For example: `python3 caeser-cipher.py decrypt "hhhhhhhhhh" 3`
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If you don't know the shift for the encrypted text, use 0 for the shift. The script will attempt to break the cipher for you.
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