TLS 1.3 (RFC 8446)
- Category
- Web and networking protocols
- Docs outline
- 9 sections
Official docs outline
rfc-editor.org- Differences from TLS 1.2
What changed in TLS 1.3: removed ciphers, 1-RTT handshake, encrypted extensions.
- Protocol overview
Full handshake, HelloRetryRequest, PSK resumption and 0-RTT flows.
- Handshake protocol
ClientHello, ServerHello, EncryptedExtensions, Certificate, CertificateVerify and Finished.
- Extensions
supported_versions, key_share, signature_algorithms, ALPN, SNI and pre_shared_key.
- Record protocol
AEAD record protection, padding and record size limits.
- Alert protocol
Close_notify and error alert descriptions.
- Cryptographic computations
HKDF key schedule and traffic key derivation.
- 0-RTT data and replay
Replay attacks on early data and mitigations.
- Compliance requirements
Mandatory-to-implement cipher suites, signature algorithms and extensions.
Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.