TRONZ Shielded Smart Contract

Document: https://github.com/tronprotocol/documentation-en/blob/master/docs/mechanism-algorithm/shielded-TRC20-contract.md

GetSpendingKeyGetExpandedSpendingKeyGetAkFromAskGetNkFromNskGetIncomingViewingKeyGetDiversifierGetZenPaymentAddressGetNewShieldedAddressCreateShieldedContractParametersCreateSpendAuthSigGetTriggerInputForShieldedTrc20ContractScanShieldedTrc20NotesByIvkScanShieldedTrc20NotesByOvkIsShieldedTrc20ContractNoteSpent