encrypt address and save into smart contract

Question

Is there any way I can encrypt my MetaMask wallet address and save this encrypted address in a Solidity smart contract? For example, encrypt the address off-chain and store it in the smart contract. Then, when I want to retrieve the address, I will retrieve my encrypted address from the smart contract and decrypt it off-chain.

Answer 1

Yes, it is easy to do, you can encrypt your address in the backend or frontend off-chain and save it in the smart contract and access it and decrypt it again whenever you want. You can use the following similar code for the smart contract and connect to it with the Web3 library

pragma solidity ^0.8.0;

contract EncryptedAddressStorage {
    address public owner;
    string public encryptedAddress;

    constructor() {
        owner = msg.sender;
    }

    modifier onlyOwner() {
        require(msg.sender == owner, "Only the owner can modify the address.");
        _;
    }

    function setEncryptedAddress(string memory _encryptedAddress) public onlyOwner {
        encryptedAddress = _encryptedAddress;
    }

    function getEncryptedAddress() public view returns (string memory) {
        return encryptedAddress;
    }
}