20 lines
603 B
Solidity
20 lines
603 B
Solidity
// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.0;
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import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
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contract HasSignature {
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function checkSigner(
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address signer,
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bytes32 hash,
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bytes memory signature
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) public pure {
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require(signature.length == 65, "[BE] invalid signature length");
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bytes32 ethSignedMessageHash = ECDSA.toEthSignedMessageHash(
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hash
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);
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address recovered = ECDSA.recover(ethSignedMessageHash, signature);
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require(recovered == signer, "[BE] invalid seller signature");
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}
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} |