Add AEAD (AES-CCM) authenticated encryption for PSK channels - #9749

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matutetandil wants to merge 8 commits into

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matutetandil:feature/aead-psk-channels

Commits on Aug 7, 2026

Add AEAD (AES-CCM) authenticated encryption for PSK channels
matutetandil
committed
001cd28
Apply clang-format to match project style
matutetandil
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b623cb2
Guard AEAD path against empty PSK and check encrypt return value
matutetandil
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34e653c
Use true AES-128 for 16-byte PSKs instead of promoting to AES-256
matutetandil
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30b708a
Reject the invalid-key sentinel in the AEAD paths
matutetandil
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d83a33a
Tie MESHTASTIC_AEAD_OVERHEAD to CryptoEngine::AEAD_TAG_SIZE
matutetandil
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b9fdf80
Add RFC 3610 known-answer vectors and widen the tamper sweep
matutetandil
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72e6484
Cover the second nonce input and tighten the AEAD test buffers
matutetandil
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1512b25