The RatchetTree leaf count must be computed from the rightmost non-null
node, not the total serialized node count. Tree-validation vectors
include trailing blank nodes that aren't part of the logical tree.
Test results: 36/41 passing (88%).
Remaining 5 failures:
- EncryptWithLabel: X25519 DH result discrepancy with test vector
- TreeOperations (2): tree_hash mismatch for trees with blank interior
leaf slots (leaf count computation needs tree-topology-aware logic)
- TranscriptHash (2): needs AuthenticatedContent decomposition
https://claude.ai/code/session_01NocQDWj2Y92FugjfgazzL3
Claude
e0995ea5ff