Codes & Ciphers: Keeping Secrets 🔐
From Caesar to post-quantum, test your crypto instincts: key concepts, real traps, smart picks
What this quiz asks
- 1Which system replaces each letter with one shifted by a fixed number in the alphabet?
- 2Why is a 'salt' added when hashing passwords?
- 3Which of these is a symmetric block cipher and not a hash function?
- 4What helped break Enigma during World War II?
- 5What makes Vigenère more robust than a simple Caesar cipher (with a short key)?
- 6Which AES mode does NOT provide data authenticity on its own?
- 7In elliptic curve cryptography, what does the 'point at infinity' represent?
- 8Which condition makes the one-time pad (OTP) perfectly secure?
- 9A 'padding oracle' attack typically targets…
- 10Which of these post-quantum schemes is based on lattices?
