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This repository comprises a set of HTML pages and associated scripts, demonstrating three classical ciphers, namely, k-shift cipher, Playfair cipher and Vigenère cipher. I (Anwitaman Datta) use them as part of teaching aide while teaching an introductory course on Cryptography (and Network Security).

These demos were initially implemented by NTU Singapore SCSE student Cheng Tiang Wei as part of his final year project under my (Anwitaman Datta's) supervision, and I have further tinkered with the original implementation carried out by the student.

Feel free to use them for learning and pedagogical purposes, but kindly acknowledge the creators of the content, namely, the aforementioned student and myself.