🔐 Encrypt and decrypt messages using the Vigenère cipher in this simple web app, built with vanilla JavaScript, HTML, and CSS for classic cryptography.
Caesar Cipher: A monoalphabetic substitution cipher where each character in the plaintext is shifted by a fixed numeric offset (key k) down the alphabet modulo 26. While historically significant, it ...
Unit of 3 lessons aimed at KS3 Year 7 in England. Students learn about cryptography and undertaking practical unplugged activities to develop their logical reasoning and problem-solving skills. They ...
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