Caesar Cipher (encryptor) Caesar Cipher (encryptor)
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This mission is the part of the set. Another one - Caesar cipher decriptor .

Your mission is to encrypt a secret message (text only, without special chars like "!", "&", "?" etc.) using Caesar cipher where each letter of input text is replaced by another that stands at a fixed distance. For example ("a b c", 3) == "d e f"


Input: A secret message as a string (lowercase letters only and white spaces)

Output: The same string, but encrypted


to_encrypt("a b c", 3) == "d e f"
to_encrypt("a b c", -3) == "x y z"
to_encrypt("simple text", 16) == "iycfbu junj"
to_encrypt("important text", 10) == "swzybdkxd dohd"
to_encrypt("state secret", -13) == "fgngr frperg"

How it is used: For cryptography and to save important information.

Precondition :
0 < len(text) < 50
-26 < delta < 26

CheckiO Extensions

CheckiO Extensions allow you to use local files to solve missions. More info in a blog post.

In order to install CheckiO client you'll need installed Python (version at least 3.8)

Install CheckiO Client first:

pip3 install checkio_client

Configure your tool

checkio --domain=py config --key=

Sync solutions into your local folder

checkio sync

(in beta testing) Launch local server so your browser can use it and sync solution between local file end extension on the fly. (doesn't work for safari)

checkio serv -d

Alternatevly, you can install Chrome extension or FF addon

checkio install-plugin
checkio install-plugin --ff
checkio install-plugin --chromium

Read more here about other functionality that the checkio client provides. Feel free to submit an issue in case of any difficulties.

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