For the zeto_anon_enc_nullifier type, should the encrypted value and encrypted salt be included in the UTXOMint event, similar to how they are included in UTXOTransferWithEncryptedValues?

[yushihang]

zeto/solidity/contracts/lib/zeto_nullifier.sol

Line 126 in 8547ca5

emit UTXOMint(utxos, msg.sender);

https://github.com/hyperledger-labs/zeto/blob/8547ca56f8e8d0a9a8bd1230825e39aa840b4e19/solidity/contracts/zeto_anon_enc_nullifier.sol#L124C1-L130C11

I have a question that I am curious about: If the UTXOMint event does not include the encrypted value and encrypted salt, how might users be able to recover the UTXOs they previously minted from the contract's events?

[Chengxuan]

@yushihang that's a great point. I think from a recovery point of view, they should be added to mint events. Worth getting @jimthematrix 's thoughts on this.

The events were initially added to eliminate the value and salt transportation when a party creates new UTXOs for other parties in a Zeto transaction. For Mint, there is no such requirement. But considering the recovery of UTXOs from on-chain data, adding those values to mint events sounds reasonable.