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ERC-7739 Readable Typed Signatures for Smart Accounts

DraftERCcreated 2024-05-28requires ERC-191, EIP-712, ERC-1271, ERC-5267

A defensive rehashing scheme which prevents signature replays across smart accounts and preserves the readability of the signed contents

Authors: vectorized (@vectorized), Sihoon Lee (@push0ebp), Francisco Giordano (@frangio), Hadrien Croubois (@Amxx), Ernesto García (@ernestognw), Im Juno (@junomonster), howydev (@howydev), Atarpara (@Atarpara), 0xcuriousapple (@0xcuriousapple)

Depends on (4)

Proposals this one names in its requires field.

ERC-191Signed Data StandardEIP-712Typed structured data hashing and signingERC-1271Standard Signature Validation Method for ContractsERC-5267Retrieval of EIP-712 domain

What the specification covers

AbstractMotivationSpecificationOverviewTypedDataSign workflowTypedDataSign final hashTypedDataSign signaturePersonalSign workflowPersonalSign final hashPersonalSign signatureSupport detectionSignature verification workflow deductionConditional skipping of defensive rehashingRationaleTypedDataSign structurecontentsDescription with implicit and explicit modesSupport detection with isValidSignatureRejecting contentsName beginning with any lowercase 7-bit ASCII characterBackwards CompatibilityDetection of previous draftReference ImplementationSecurity ConsiderationsRejecting invalid contentsNameImpossible to chain multiple signers of this kindCopyright

This proposal declares no Solidity interface, so there is nothing to compute. It may be a core protocol change, a meta proposal, or written in prose only.

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