Created
November 13, 2015 17:30
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| alphabet = ("a".."z").to_a << " " | |
| key = 3 | |
| word = "hola mundo" | |
| aux_arr = word.split("").map{|w| alphabet[(alphabet.index(w) + key) % alphabet.count] } | |
| puts aux_arr.join("") | |
| decrypt_arr = aux_arr.map{|w|alphabet[(alphabet.index(w) - key) % alphabet.count]} | |
| puts decrypt_arr.join("") |
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