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networks/diffie-hellman-how-two-strangers-agree-on-a-secret-while-everyone-list.md Diffie-Hellman: how two strangers agree on a secret while everyone listens How can a browser and a website that have never met agree on a secret key while everyone on the Wi-Fi is listening? The trick is… 5 min read · 20 Oct security/caesar-cipher-why-25-guesses-break-it-and-what-real-encryption-does-in.md Caesar cipher: why 25 guesses break it, and what real encryption does instead The Caesar cipher swaps each letter for one a fixed distance along the alphabet. Slide the key yourself, then play the attacker and break… 5 min read · 12 Oct