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| 1 | -- Caesar api by Mackan90096 | |
| 2 | ||
| 3 | function encrypt(text, key) | |
| 4 | return text:gsub("%a", function(t)
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| 5 | local base = (t:lower() == t and string.byte('a') or string.byte('A'))
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| 6 | ||
| 7 | local r = t:byte() - base | |
| 8 | r = r + key | |
| 9 | r = r%26 | |
| 10 | r = r + base | |
| 11 | return string.char(r) | |
| 12 | end) | |
| 13 | end | |
| 14 | ||
| 15 | function decrypt(text, key) | |
| 16 | return encrypt(text, -key) | |
| 17 | end |
