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Intermediate 路 25 lessons 路 4 units

Cryptography

Secret codes from Caesar to TLS: hashing, encryption, keys and signatures.

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Unit 1Classic ciphers

0/6
  1. 1 What cryptography is quiz
  2. 2 The Caesar cipher codequiz
  3. 3 Brute force quiz
  4. 4 Substitution and frequency analysis quiz
  5. 5 Vigen猫re and Enigma quiz
  6. 6 Encoding is not encryption codequiz

Unit 2Hashing

0/5
  1. 7 Hash functions codequiz
  2. 8 SHA-256 and MD5 quiz
  3. 9 Hashing passwords quiz
  4. 10 File integrity codequiz
  5. 11 HMAC codequiz

Unit 3Encryption

0/8
  1. 12 Symmetric encryption quiz
  2. 13 AES codequiz
  3. 14 Asymmetric encryption quiz
  4. 15 Key exchange quiz
  5. 16 Digital signatures quiz
  6. 17 Certificates and PKI quiz
  7. 18 How TLS works quiz
  8. 19 End-to-end encryption quiz

Unit 4Crypto in practice

0/6
  1. 20 Random numbers codequiz
  2. 21 Encrypting your devices quiz
  3. 22 SSH keys up close codequiz
  4. 23 PGP and signing quiz
  5. 24 Common crypto mistakes quiz
  6. 25 Quantum and the future quiz