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Update readme.md #555

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Oct 23, 2023
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Update readme.md #555

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2 changes: 1 addition & 1 deletion 37_Signature/readme.md
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Expand Up @@ -76,7 +76,7 @@ tags:
* 以及`EIP191`:https://eips.ethereum.org/EIPS/eip-191`
* 添加"\x19Ethereum Signed Message:\n32"字段，防止签名的是可执行交易。
*/
function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
function toEthSignedMessageHash(bytes32 hash) public pure returns (bytes32) {
// 哈希的长度为32
return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
}
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