createMMRDataLeafNode

@totemsdk/server

---

@totemsdk/server / createMMRDataLeafNode

Function: createMMRDataLeafNode()

createMMRDataLeafNode(pubkey, sumValue?): MMRData

Create MMRData leaf node matching Minima's MMRData.CreateMMRDataLeafNode

From MMRData.java: MiniData hash = Crypto.getInstance().hashAllObjects(MiniNumber.ZERO, zData, zSumValue);

CRITICAL: Crypto.hashAllObjects uses writeDataStream for Streamables:

• MiniNumber: scale + len + data (see serializeMiniNumber)
• MiniData: 4-byte length + data (see serializeMiniData)

For TreeKeyNode, zData is the Winternitz public key (MiniData) and zSumValue is ZERO

Serialization order:

1. MiniNumber.ZERO: [0x00, 0x01, 0x00]
2. MiniData (pubkey): [4-byte length] + [bytes] (writeDataStream, NOT writeHashToStream)
3. MiniNumber.ZERO: [0x00, 0x01, 0x00]

Parameters

pubkey

Bytes

sumValue?

bigint

Returns

MMRData