eth: add get public key

trezorctl

@@ -1060,6 +1060,28 @@ def ethereum_get_address(connect, address, show_display):
     return "0x%s" % address.hex()
 
 
+@cli.command(help="Get Ethereum public node of given path.")
+@click.option(
+    "-n", "--address", required=True, help="BIP-32 path, e.g. m/44'/60'/0'/0/0"
+)
+@click.option("-d", "--show-display", is_flag=True)
+@click.pass_obj
+def ethereum_get_public_node(connect, address, show_display):
+    client = connect()
+    address_n = tools.parse_path(address)
+    result = ethereum.get_public_node(client, address_n, show_display=show_display)
+    return {
+        "node": {
+            "depth": result.node.depth,
+            "fingerprint": "%08x" % result.node.fingerprint,
+            "child_num": result.node.child_num,
+            "chain_code": result.node.chain_code.hex(),
+            "public_key": result.node.public_key.hex(),
+        },
+        "xpub": result.xpub,
+    }
+
+
 @cli.command(
     help='Sign (and optionally publish) Ethereum transaction. Use TO as destination address or set TO to "" for contract creation.'
 )

trezorlib/ethereum.py

@@ -30,6 +30,13 @@ def get_address(client, n, show_display=False, multisig=None):
     return client.call(proto.EthereumGetAddress(address_n=n, show_display=show_display))
 
 
+@expect(proto.EthereumPublicKey)
+def get_public_node(client, n, show_display=False):
+    return client.call(
+        proto.EthereumGetPublicKey(address_n=n, show_display=show_display)
+    )
+
+
 @session
 def sign_tx(
     client,

trezorlib/tests/device_tests/test_msg_ethereum_getaddress.py

@@ -46,3 +46,7 @@ class TestMsgEthereumGetaddress(TrezorTest):
             ethereum.get_address(self.client, [H_(44), H_(60), 0, 9999999]).hex()
             == "6b909b50d88c9a8e02453a87b3662e3e7a5e0cf1"
         )
+        assert (
+            ethereum.get_address(self.client, [H_(44), H_(6060), 0, 9999999]).hex()
+            == "98b8e926bd224764de2a0e4f4cbe1521474050af"
+        )

trezorlib/tests/device_tests/test_msg_ethereum_getpublickey.py

@@ -0,0 +1,32 @@
+# This file is part of the Trezor project.
+#
+# Copyright (C) 2012-2018 SatoshiLabs and contributors
+#
+# This library is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License version 3
+# as published by the Free Software Foundation.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the License along with this library.
+# If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.
+
+import pytest
+
+from trezorlib import ethereum
+from trezorlib.tools import H_
+
+from .common import TrezorTest
+
+
+@pytest.mark.ethereum
+class TestMsgEthereumGetPublicKey(TrezorTest):
+    def test_ethereum_getpublickey(self):
+        self.setup_mnemonic_nopin_nopassphrase()
+        assert (
+            ethereum.get_public_node(self.client, [H_(44), H_(60), H_(0)]).xpub
+            == "xpub6D54vV8eUYHMVBZCnz4SLjuiQngXURVCGKKGoJrWUDRegdMByLTJKfRs64q3UKiQCsSHJPtCQehTvERczdghS7gb8oedWSyNDtBU1zYDJtb"
+        )