protobuf: EthereumPublicKey

protob/messages-ethereum.proto

@@ -5,6 +5,27 @@ package hw.trezor.messages.ethereum;
 option java_package = "com.satoshilabs.trezor.lib.protobuf";
 option java_outer_classname = "TrezorMessageEthereum";
 
+/**
+ * Request: Ask device for public key corresponding to address_n path
+ * @start
+ * @next EthereumPublicKey
+ * @next Failure
+ */
+message EthereumGetPublicKey {
+    repeated uint32 address_n = 1;                                      // BIP-32 path to derive the key from master node
+    optional bool show_display = 2;                                     // optionally show on display before sending the result
+    optional uint32 chain_id = 3;                                       // eth chain
+}
+
+/**
+ * Response: Contains public key derived from device private seed
+ * @end
+ */
+message EthereumPublicKey {
+    required hw.trezor.messages.common.HDNodeType node = 1;        // BIP32 public node
+    optional string xpub = 2;        // serialized form of public node
+}
+
 /**
  * Request: Ask device for Ethereum address corresponding to address_n path
  * @start

protob/messages.proto

@@ -104,6 +104,8 @@ enum MessageType {
     MessageType_DebugLinkFlashErase = 113 [(wire_debug_in) = true];
 
     // Ethereum
+    MessageType_EthereumGetPublicKey = 450 [(wire_in) = true];
+    MessageType_EthereumPublicKey = 451 [(wire_out) = true];
     MessageType_EthereumGetAddress = 56 [(wire_in) = true];
     MessageType_EthereumAddress = 57 [(wire_out) = true];
     MessageType_EthereumSignTx = 58 [(wire_in) = true];