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Appendix B. Protocol Data Structures and Constant Values

This appendix provides a comprehensive reference of protocol data structures and constant values used throughout TLS 1.3.

B.1. Record Layer​

Record layer structures and constants.

B.2. Alert Messages​

Alert protocol message types and their values.

B.3. Handshake Protocol​

Handshake message types and structures.

B.4. Cipher Suites​

TLS 1.3 cipher suite definitions and their assigned values.

Complete Data Structures: For the complete protocol data structures, enumerations, and constant value definitions, please refer to Appendix B of RFC 8446.