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Switch manifest serialization to CBOR

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Replace JSON-based bundle manifest with a CBOR-encoded format. The manifest
is now a canonical CBOR map with order-strict key decoding, raw 32-byte hash
payloads (instead of hex-encoded JSON), and compact binary representation.
This commit is contained in:
James Eversole
2026-05-07 21:41:50 -05:00
parent d9f25a2b5a
commit e3117e3ac8
23 changed files with 988 additions and 275 deletions
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4
src/Research.hs
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@@ -85,12 +85,12 @@ serializeNode (NFork l r) = BS.pack [0x02] <> go (decode (encodeUtf8 l)) <> go (
go (Right bs) = bs
-- | Hash a node per the Merkle content-addressing spec.
-- hash = SHA256( "tricu.merkle.node.v1" <> 0x00 <> node_payload )
-- hash = SHA256( "arborix.merkle.node.v1" <> 0x00 <> node_payload )
nodeHash :: Node -> MerkleHash
nodeHash node = decodeUtf8 (encode (sha256WithPrefix (serializeNode node)))
where sha256WithPrefix payload =
convert . (hash :: BS.ByteString -> Digest SHA256) $ utf8Tag <> BS.pack [0x00] <> payload
utf8Tag = BS.pack $ map fromIntegral $ BS.unpack "tricu.merkle.node.v1"
utf8Tag = BS.pack $ map fromIntegral $ BS.unpack "arborix.merkle.node.v1"
-- | Deserialize a Node from canonical bytes.
deserializeNode :: BS.ByteString -> Node