Create IdentityVerifier.sol

contracts/IdentityVerifier.sol

@@ -0,0 +1,53 @@
+pragma solidity ^0.8.0;
+
+contract IdentityVerifier {
+    // Define the mapping of addresses to their identities
+    mapping (address => Identity) public identities;
+
+    // Define the struct for an identity
+    struct Identity {
+        string name;
+        string email;
+        string phoneNumber;
+    }
+
+    // Event emitted when an identity is created
+    event IdentityCreated(address indexed identityOwner);
+
+    // Event emitted when an identity is updated
+    event IdentityUpdated(address indexed identityOwner);
+
+    // Function to create a new identity
+    function createIdentity(string memory _name, string memory _email, string memory _phoneNumber) public {
+        // Check if the identity already exists
+        require(identities[msg.sender].name == "", "Identity already exists");
+
+        // Create the identity
+        identities[msg.sender].name = _name;
+        identities[msg.sender].email = _email;
+        identities[msg.sender].phoneNumber = _phoneNumber;
+
+        // Emit the identity created event
+        emit IdentityCreated(msg.sender);
+    }
+
+    // Function to update an identity
+    function updateIdentity(string memory _name, string memory _email, string memory _phoneNumber) public {
+        // Check if the identity exists
+        require(identities[msg.sender].name != "", "Identity does not exist");
+
+        // Update the identity
+        identities[msg.sender].name = _name;
+        identities[msg.sender].email = _email;
+        identities[msg.sender].phoneNumber = _phoneNumber;
+
+        // Emit the identity updated event
+        emit IdentityUpdated(msg.sender);
+    }
+
+    // Function to get an identity
+    function getIdentity(address _address) public view returns (Identity memory) {
+        // Return the identity
+        return identities[_address];
+    }
+}