feat: NodeUpdate needs only admin key to sign

hapi/hedera-protobufs/services/address_book_service.proto

@@ -33,7 +33,7 @@ import "transaction.proto";
  * but each node operator may update their own operational attributes without
  * additional approval, reducing overhead for routine operations.
  *
- * All operations are `privileged operations` and require governing council
+ * Most operations are `privileged operations` and require governing council
  * approval.
  *
  * ### For a node creation transaction.
@@ -83,29 +83,19 @@ import "transaction.proto";
  *      be active in the network following this upgrade.
  *
  * ### For a node update transaction.
- * - The node operator or Hedera council representative SHALL create an
- *   `updateNode` transaction.
- *    - If the node operator creates the transaction
- *       - The node operator MUST sign this transaction with the active `key`
- *         for the account assigned as the current "node account".
- *       - If the transaction changes the value of the "node account" the
- *         node operator MUST _also_ sign this transaction with the active `key`
- *         for the account to be assigned as the new "node account".
- *       - The node operator MUST deliver the signed transaction to the Hedera
- *         council representative.
- *    - The Hedera council representative SHALL arrange for council members to
- *      review and sign the transaction.
- *    - Once sufficient council members have signed the transaction, the
- *      Hedera council representative SHALL submit the transaction to the
- *      network.
+ * - The node operator SHALL create an `updateNode` transaction.
+ *    - The node operator MUST sign this transaction with the active `key`
+ *      for the account assigned as the current "node account".
+ *    - The node operator SHALL submit the transaction to the
+ *      network.  Hedera council approval SHALL NOT be sought for this
+ *      transaction
  * - Upon receipt of a valid and signed node update transaction the network
  *   software SHALL
- *    - Validate the threshold signature for the Hedera governing council
- *    - Validate the signature of the active `key` for the account to be
- *      assigned as the "node account".
  *    - If the transaction modifies the value of the "node account",
- *       - Validate the signature of the _new_ `key` for the account to be
- *         assigned as the new "node account".
+ *       - Validate the signature of the active `key` for the account
+ *         assigned as the _current_ "node account".
+ *       - Validate the signature of the active `key` for the account to be
+ *         assigned as the _new_ "node account".
  *    - Modify the node information held in network state with the changes
  *      requested in the update transaction. The node changes SHALL NOT be
  *      applied to network configuration, and SHALL NOT affect network
@@ -147,7 +137,7 @@ service AddressBookService {
      * This transaction, once complete, SHALL modify the identified consensus
      * node state as requested.
      * <p>
-     * Hedera governing council authorization is REQUIRED for this transaction.
+     * This transaction is authorized by the node operator
      */
     rpc updateNode (proto.Transaction) returns (proto.TransactionResponse);
 }

hapi/hedera-protobufs/services/node_update.proto

@@ -28,10 +28,9 @@ import "basic_types.proto";
 /**
  * Transaction body to modify address book node attributes.
  *
- * This transaction body SHALL be considered a "privileged transaction".
- *
- * - This transaction MUST be signed by the governing council and
- *   the active `admin_key` for the node.
+ * - This transaction SHALL enable the node operator, as identified by the
+ *   `admin_key`, to modify operational attributes of the node.
+ * - This transaction MUST be signed by the active `admin_key` for the node.
  * - If this transaction sets a new value for the `admin_key`, then both the
  *   current `admin_key`, and the new `admin_key` MUST sign this transaction.
  * - This transaction SHALL NOT change any field that is not set (is null) in

hedera-node/hedera-addressbook-service-impl/src/main/java/com/hedera/node/app/service/addressbook/impl/handlers/NodeUpdateHandler.java

@@ -65,7 +65,7 @@ public NodeUpdateHandler(@NonNull final AddressBookValidator addressBookValidato
     @Override
     public void pureChecks(@NonNull final TransactionBody txn) throws PreCheckException {
         requireNonNull(txn);
-        final var op = txn.nodeUpdateOrThrow();
+        final var op = txn.nodeUpdate();
         validateFalsePreCheck(op.nodeId() < 0, INVALID_NODE_ID);
         if (op.hasGossipCaCertificate()) {
             validateFalsePreCheck(op.gossipCaCertificate().equals(Bytes.EMPTY), INVALID_GOSSIP_CA_CERTIFICATE);

hedera-node/hedera-app/src/main/java/com/hedera/node/app/authorization/PrivilegesVerifier.java

@@ -91,7 +91,7 @@ public SystemPrivilege hasPrivileges(
                     txBody.fileDeleteOrThrow().fileIDOrThrow().fileNum());
             case CRYPTO_DELETE -> checkEntityDelete(
                     txBody.cryptoDeleteOrThrow().deleteAccountIDOrThrow().accountNumOrThrow());
-            case NODE_CREATE, NODE_UPDATE, NODE_DELETE -> checkNodeChange(payerId);
+            case NODE_CREATE, NODE_DELETE -> checkNodeChange(payerId);
             default -> SystemPrivilege.UNNECESSARY;
         };
     }

hedera-node/hedera-app/src/test/java/com/hedera/node/app/authorization/PrivilegesVerifierTest.java

@@ -46,7 +46,6 @@
 import com.hederahashgraph.api.proto.java.FreezeTransactionBody;
 import com.hederahashgraph.api.proto.java.NodeCreateTransactionBody;
 import com.hederahashgraph.api.proto.java.NodeDeleteTransactionBody;
-import com.hederahashgraph.api.proto.java.NodeUpdateTransactionBody;
 import com.hederahashgraph.api.proto.java.SignedTransaction;
 import com.hederahashgraph.api.proto.java.SystemDeleteTransactionBody;
 import com.hederahashgraph.api.proto.java.SystemUndeleteTransactionBody;
@@ -369,14 +368,6 @@ void addressBookAdminCanCreate() throws InvalidProtocolBufferException {
         assertEquals(SystemOpAuthorization.AUTHORIZED, subject.authForTestCase(accessor(txn)));
     }
 
-    @Test
-    void addressBookAdminCanUpdate() throws InvalidProtocolBufferException {
-        // given:
-        var txn = addressBookAdminTxn().setNodeUpdate(NodeUpdateTransactionBody.getDefaultInstance());
-        // expect:
-        assertEquals(SystemOpAuthorization.AUTHORIZED, subject.authForTestCase(accessor(txn)));
-    }
-
     @Test
     void addressBookAdminCanDelete() throws InvalidProtocolBufferException {
         // given:

hedera-node/hedera-config/src/main/java/com/hedera/node/config/data/ApiPermissionConfig.java

@@ -261,7 +261,7 @@ public record ApiPermissionConfig(
         @ConfigProperty(defaultValue = "0-*") PermissionedAccountsRange tokenCancelAirdrop,
         @ConfigProperty(defaultValue = "0-*") PermissionedAccountsRange tokenClaimAirdrop,
         @ConfigProperty(defaultValue = "2-55") PermissionedAccountsRange createNode,
-        @ConfigProperty(defaultValue = "2-55") PermissionedAccountsRange updateNode,
+        @ConfigProperty(defaultValue = "0-*") PermissionedAccountsRange updateNode,
         @ConfigProperty(defaultValue = "2-55") PermissionedAccountsRange deleteNode,
         @ConfigProperty(defaultValue = "0-0") PermissionedAccountsRange tssMessage,
         @ConfigProperty(defaultValue = "0-0") PermissionedAccountsRange tssVote,

hedera-node/test-clients/src/main/java/com/hedera/services/bdd/suites/hip869/NodeUpdateTest.java

@@ -375,14 +375,16 @@ final Stream<DynamicTest> signedByCouncilNotAdminKeyFail() throws CertificateEnc
     }
 
     @HapiTest
-    final Stream<DynamicTest> signedByCouncilAndAdminKeySuccess() throws CertificateEncodingException {
+    final Stream<DynamicTest> signedByAdminKeySuccess() throws CertificateEncodingException {
         return hapiTest(
                 newKeyNamed("adminKey"),
+                cryptoCreate("payer").balance(10_000_000_000L),
                 nodeCreate("testNode")
                         .adminKey("adminKey")
                         .gossipCaCertificate(gossipCertificates.getFirst().getEncoded()),
                 nodeUpdate("testNode")
-                        .signedBy(ADDRESS_BOOK_CONTROL, "adminKey")
+                        .payingWith("payer")
+                        .signedBy("payer", "adminKey")
                         .description("updated description")
                         .via("successUpdate"),
                 getTxnRecord("successUpdate").logged());

hedera-node/test-clients/src/main/java/com/hedera/services/bdd/suites/hip869/UpdateAccountEnabledTest.java

@@ -27,7 +27,6 @@
 import static com.hedera.services.bdd.spec.utilops.EmbeddedVerbs.viewNode;
 import static com.hedera.services.bdd.spec.utilops.UtilVerbs.newKeyNamed;
 import static com.hedera.services.bdd.spec.utilops.UtilVerbs.validateChargedUsdWithin;
-import static com.hedera.services.bdd.suites.HapiSuite.DEFAULT_PAYER;
 import static com.hedera.services.bdd.suites.HapiSuite.ONE_HBAR;
 import static com.hedera.services.bdd.suites.hip869.NodeCreateTest.generateX509Certificates;
 import static com.hederahashgraph.api.proto.java.ResponseCodeEnum.INVALID_NODE_ACCOUNT_ID;
@@ -101,17 +100,16 @@ final Stream<DynamicTest> validateFees() throws CertificateEncodingException {
                 // Submit to a different node so ingest check is skipped
                 nodeUpdate("node100")
                         .setNode("0.0.5")
-                        .signedBy(DEFAULT_PAYER)
+                        .payingWith("payer")
                         .accountId("0.0.1000")
                         .fee(ONE_HBAR)
                         .hasKnownStatus(INVALID_SIGNATURE)
                         .via("failedUpdate"),
                 getTxnRecord("failedUpdate").logged(),
-                // The fee is not charged here because the payer is privileged
-                validateChargedUsdWithin("failedUpdate", 0.0, 3.0),
+                // The fee is charged here because the payer is not privileged
+                validateChargedUsdWithin("failedUpdate", 0.001, 3.0),
                 nodeUpdate("node100")
                         .adminKey("testKey")
-                        .signedBy(DEFAULT_PAYER, "testKey")
                         .accountId("0.0.1000")
                         .fee(ONE_HBAR)
                         .via("updateNode"),
@@ -122,12 +120,12 @@ final Stream<DynamicTest> validateFees() throws CertificateEncodingException {
                 // Submit with several signatures and the price should increase
                 nodeUpdate("node100")
                         .setNode("0.0.5")
-                        .signedBy(DEFAULT_PAYER, "payer", "payer", "randomAccount", "testKey")
+                        .payingWith("payer")
+                        .signedBy("payer", "payer", "randomAccount", "testKey")
                         .accountId("0.0.1000")
                         .fee(ONE_HBAR)
                         .via("failedUpdateMultipleSigs"),
-                // The fee is not charged here because the payer is privileged
-                validateChargedUsdWithin("failedUpdateMultipleSigs", 0.0, 3.0));
+                validateChargedUsdWithin("failedUpdateMultipleSigs", 0.0011276316, 3.0));
     }
 
     @EmbeddedHapiTest(NEEDS_STATE_ACCESS)