DTLS 1.3 record layer (RFC 9147 section 4), part 1 of 5 for #1468 - #2439

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mondain wants to merge 6 commits into

mondain:dtls13/1-record-layer

Commits on Sep 15, 2026

Add the DTLS 1.3 ack content type (RFC 9147 7.1), relates to github #1468.
mondain
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5e8aadb
Add DTLS 1.3 record number encryption mask primitive for AES and ChaCha20 (RFC 9147 4.2.3), relates to github #1468.
mondain
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92a868c
Add DTLS 1.3 record protection to TlsAEADCipher via a new TlsDTLS13Cipher interface, relates to github #1468.
mondain
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db62603
Add DTLS 1.3 unified header codec and sequence number reconstruction (RFC 9147 4.2.2), relates to github #1468.
mondain
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dda1d91
Add DTLS 1.3 record layer send/receive paths and epoch switching (RFC 9147 4), relates to github #1468.
mondain
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d5a8bd2
Use the "dtls13" HKDF-Expand-Label prefix for the DTLS 1.3 key schedule (RFC 9147 section 5.9) instead of TLS 1.3's "tls13 ", so DTLS 1.3 traffic keys, record number keys, Finished keys and exporte…

JonathanLennox
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mondain
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