Recover the signers of a message given the message and the signatures.

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Usage

bytes32 dataHash = keccak256(abi.encodePacked("DATA TO SIGN"));

(uint8 v, bytes32 r, bytes32 s) = vm.sign(signerPk1, dataHash);
bytes memory signatures = abi.encodePacked(r, s, v);
(v, r, s) = vm.sign(signerPk2, dataHash);
signatures = abi.encodePacked(signatures, abi.encodePacked(r, s, v));

address[] memory recovered = CheckSignatures.recoverNSignatures(dataHash, signatures, 2);

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Parameters

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dataHash

  • Type: bytes32

The hash of the data to sign.

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signatures

  • Type: bytes

The concatenated signatures. Note: the concatenation order is r, s, v and ther should not be any padding.

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requiredSignatures

  • Type: uint256

The number of signatures.

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Returns

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recoveredSigners

  • Type: address[]

The array of addresses that signed the message.