Lectures related to Substitution–permutation network

Explores ancient to modern cryptography techniques, including substitution ciphers, frequency analysis, and the Enigma machine.

Explores symmetric encryption schemes, including block and stream ciphers, their vulnerabilities, and the importance of key lengths.

Explores symmetric encryption basics, substitution ciphers, historical machines like Enigma, modern standards like AES, and asymmetric encryption.

Introduces symmetric encryption basics, covering encryption, decryption, keys, substitution ciphers, DES, AES, ChaCha20, and asymmetric encryption.