update the auth id for Faucet to be bytes32 instead of bytes

packages/contracts-periphery/contracts/foundry-tests/AdminFaucetAuthModule.t.sol

@@ -57,11 +57,10 @@ contract AdminFaucetAuthModuleTest is Test {
      * @notice Get signature as a bytes blob.
      *
      */
-    function _getSignature(uint256 _signingPrivateKey, bytes32 _digest)
-        internal
-        pure
-        returns (bytes memory)
-    {
+    function _getSignature(
+        uint256 _signingPrivateKey,
+        bytes32 _digest
+    ) internal pure returns (bytes memory) {
         (uint8 v, bytes32 r, bytes32 s) = vm.sign(_signingPrivateKey, _digest);
 
         bytes memory signature = abi.encodePacked(r, s, v);
@@ -80,7 +79,7 @@ contract AdminFaucetAuthModuleTest is Test {
         uint256 _eip712Chainid,
         address _eip712VerifyingContract,
         address recipient,
-        bytes memory id,
+        bytes32 id,
         bytes32 nonce
     ) internal view returns (bytes memory) {
         AdminFaucetAuthModule.Proof memory proof = AdminFaucetAuthModule.Proof(
@@ -114,7 +113,7 @@ contract AdminFaucetAuthModuleTest is Test {
             block.chainid,
             address(adminFam),
             fundsReceiver,
-            abi.encodePacked(fundsReceiver),
+            keccak256(abi.encodePacked(fundsReceiver)),
             nonce
         );
 
@@ -122,7 +121,7 @@ contract AdminFaucetAuthModuleTest is Test {
         assertEq(
             adminFam.verify(
                 Faucet.DripParameters(payable(fundsReceiver), nonce),
-                abi.encodePacked(fundsReceiver),
+                keccak256(abi.encodePacked(fundsReceiver)),
                 proof
             ),
             true
@@ -142,7 +141,7 @@ contract AdminFaucetAuthModuleTest is Test {
             block.chainid,
             address(adminFam),
             fundsReceiver,
-            abi.encodePacked(fundsReceiver),
+            keccak256(abi.encodePacked(fundsReceiver)),
             nonce
         );
 
@@ -150,7 +149,7 @@ contract AdminFaucetAuthModuleTest is Test {
         assertEq(
             adminFam.verify(
                 Faucet.DripParameters(payable(fundsReceiver), nonce),
-                abi.encodePacked(fundsReceiver),
+                keccak256(abi.encodePacked(fundsReceiver)),
                 proof
             ),
             false
@@ -172,7 +171,7 @@ contract AdminFaucetAuthModuleTest is Test {
             block.chainid,
             address(adminFam),
             fundsReceiver,
-            abi.encodePacked(fundsReceiver),
+            keccak256(abi.encodePacked(fundsReceiver)),
             nonce
         );
 
@@ -180,7 +179,7 @@ contract AdminFaucetAuthModuleTest is Test {
         assertEq(
             adminFam.verify(
                 Faucet.DripParameters(payable(fundsReceiver), nonce),
-                abi.encodePacked(randomAddress),
+                keccak256(abi.encodePacked(randomAddress)),
                 proof
             ),
             false

packages/contracts-periphery/contracts/testing/helpers/FaucetHelper.sol

@@ -16,7 +16,7 @@ contract FaucetHelper {
      * @notice EIP712 typehash for the Proof type.
      */
     bytes32 public constant PROOF_TYPEHASH =
-        keccak256("Proof(address recipient,bytes32 nonce,bytes id)");
+        keccak256("Proof(address recipient,bytes32 nonce,bytes32 id)");
 
     /**
      * @notice EIP712 typehash for the EIP712Domain type that is included as part of the signature.
@@ -48,11 +48,9 @@ contract FaucetHelper {
      *
      * @return EIP-712 typed struct hash.
      */
-    function getProofStructHash(AdminFaucetAuthModule.Proof memory _proof)
-        public
-        pure
-        returns (bytes32)
-    {
+    function getProofStructHash(
+        AdminFaucetAuthModule.Proof memory _proof
+    ) public pure returns (bytes32) {
         return keccak256(abi.encode(PROOF_TYPEHASH, _proof.recipient, _proof.nonce, _proof.id));
     }
 

packages/contracts-periphery/contracts/universal/faucet/Faucet.sol

@@ -31,7 +31,7 @@ contract Faucet {
      */
     event Drip(
         string indexed authModule,
-        bytes indexed userId,
+        bytes32 indexed userId,
         uint256 amount,
         address indexed recipient
     );
@@ -49,7 +49,7 @@ contract Faucet {
      */
     struct AuthParameters {
         IFaucetAuthModule module;
-        bytes id;
+        bytes32 id;
         bytes proof;
     }
 
@@ -76,12 +76,12 @@ contract Faucet {
     /**
      * @notice Mapping of authentication IDs to the next timestamp at which they can be used.
      */
-    mapping(IFaucetAuthModule => mapping(bytes => uint256)) public timeouts;
+    mapping(IFaucetAuthModule => mapping(bytes32 => uint256)) public timeouts;
 
     /**
      * @notice Maps from id to nonces to whether or not they have been used.
      */
-    mapping(bytes => mapping(bytes32 => bool)) public nonces;
+    mapping(bytes32 => mapping(bytes32 => bool)) public nonces;
 
     /**
      * @notice Modifier that makes a function admin priviledged.

packages/contracts-periphery/contracts/universal/faucet/authmodules/AdminFaucetAuthModule.sol

@@ -21,7 +21,7 @@ contract AdminFaucetAuthModule is IFaucetAuthModule, EIP712 {
      * @notice EIP712 typehash for the Proof type.
      */
     bytes32 public constant PROOF_TYPEHASH =
-        keccak256("Proof(address recipient,bytes32 nonce,bytes id)");
+        keccak256("Proof(address recipient,bytes32 nonce,bytes32 id)");
 
     /**
      * @notice Struct that represents a proof that verifies the admin.
@@ -33,7 +33,7 @@ contract AdminFaucetAuthModule is IFaucetAuthModule, EIP712 {
     struct Proof {
         address recipient;
         bytes32 nonce;
-        bytes id;
+        bytes32 id;
     }
 
     /**
@@ -54,7 +54,7 @@ contract AdminFaucetAuthModule is IFaucetAuthModule, EIP712 {
      */
     function verify(
         Faucet.DripParameters memory _params,
-        bytes memory _id,
+        bytes32 _id,
         bytes memory _proof
     ) external view returns (bool) {
         // Generate a EIP712 typed data hash to compare against the proof.

packages/contracts-periphery/contracts/universal/faucet/authmodules/IFaucetAuthModule.sol

@@ -17,7 +17,7 @@ interface IFaucetAuthModule {
      */
     function verify(
         Faucet.DripParameters memory _params,
-        bytes memory _id,
+        bytes32 _id,
         bytes memory _proof
     ) external view returns (bool);
 }