Two Historical Encryption which used in past, refer to history of mathematics. Powered by JS, So you can run it on browsers!
My education field is pure mathematics and i studied about Historical mathematics. In past people used mathematics for encryption the letter text or message. But it was not much complex such as nowdays.
They used two different way:
- Change order (Move each char)
- Change and switching the letters
- Change order: https://basemax.github.io/HistoricalEncryption/change-order.html
- Change letter: https://basemax.github.io/HistoricalEncryption/change-letter.html
If you interested to know how I get list of alphabet, I used wikipedia.