在Solidity语言中,合约可以通过利用多个地址对数据进行多重签名和验证。具体步骤如下:
address[] public signers;
uint public threshold;
struct Signature {
bool signed;
mapping(address => bool) signatures;
}
mapping(bytes32 => Signature) public signatures;
function signData(bytes32 _data) public {
require(signers.contains(msg.sender), "Address is not authorized to sign");
require(!signatures[_data].signatures[msg.sender], "Address has already signed");
signatures[_data].signatures[msg.sender] = true;
signatures[_data].signedCount++;
}
function verifyData(bytes32 _data) public view returns(bool) {
require(signatures[_data].signedCount >= threshold, "Data has not been signed by enough addresses");
return true;
}
通过以上步骤,合约就可以支持链上数据的多重签名和验证。只有当足够数量的地址对数据进行了签名,数据才能够通过验证。
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