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ERC-3005 Batched meta transactions

StagnantERCcreated 2020-09-25

Author: Matt (@defifuture)

Functions this standard introduces (2)

0xed2a2d64nonceOf(address)view
0xc5e7e8daprocessMetaBatch(address[],address[],uint256[],uint256[],uint256[],uint8[],bytes32[],bytes32[])

What the specification covers

Simple SummaryAbstractMotivationSpecificationMeta transaction dataprocessMetaBatch() function input dataMeta transaction data hashValidation rulesprocessMetaBatch() function interfaceMeta transaction nonceToken transfersImplementationprocessMetaBatch()nonceOf()RationaleAll-in-oneFunction parametersThe alternative way of passing meta transaction data into the functionWhy is nonce not one of the parameters in the reference implementation?Can EIP-2612 nonces mapping be re-used?Token transfersBackwards CompatibilityTest CasesSecurity ConsiderationsForging a meta transactionReplay attacksSignature validationMalicious relayer forcing a user into over-spendingFront-running attackA malicious (or too impatient) user sending a meta transaction with the same nonce through multiple relayers at onceToo big due block numberCopyright

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