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Cryptography / Encryption

Lesson 18 of 25

How TLS works

TLS (the S in HTTPS) uses certificates to check the server, key exchange to agree a secret, and AES to encrypt the conversation. Asymmetric and symmetric crypto working together.

Key points

  • Handshake checks the certificate
  • Key exchange creates a session key
  • Symmetric cipher encrypts the data
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Quiz · +10 XP

Which kind of encryption protects the bulk of HTTPS data?

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