oz-erc7984-custodian-omnibus
Exchange Custody and Omnibus Sub-Account Patterns
Use this skill when building custodial infrastructure for confidential tokens.
Exchanges today commingle user funds in a single hot wallet with off-chain
bookkeeping. ERC7984 lets that aggregate holding be confidential, and the
ERC7984Omnibus extension makes sub-account movements observable to the
custodian's backend (and any auditor it grants) while keeping sub-account
identities and amounts encrypted from the outside world.
What ERC7984Omnibus Actually Is
ERC7984Omnibus is an ERC7984 extension from
@openzeppelin/confidential-contracts. It adds a new family of transfer
entry points that carry encrypted sender and encrypted recipient addresses
(eaddress) alongside the encrypted amount, and emits an event per call so
off-chain integrators can reconstruct sub-account attribution.
// External (user-encrypted inputs)
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