ethereum: implement EthereumSignMessage/EthereumVerifyMessage

trezorctl

@@ -86,7 +86,11 @@ def print_result(res, transport, path, verbose, is_json):
                 click.echo(line)
         elif isinstance(res, dict):
             for k, v in res.items():
-                click.echo('%s: %s' % (k, v))
+                if isinstance(v, dict):
+                    for kk, vv in v.items():
+                        click.echo('%s.%s: %s' % (k, kk, vv))
+                else:
+                    click.echo('%s: %s' % (k, v))
         else:
             click.echo(res)
 
@@ -388,7 +392,17 @@ def get_address(client, coin, address, script_type, show_display):
 @click.pass_obj
 def get_public_node(client, coin, address, curve, show_display):
     address_n = client.expand_path(address)
-    return client.get_public_node(address_n, ecdsa_curve_name=curve, show_display=show_display, coin_name=coin)
+    result = client.get_public_node(address_n, ecdsa_curve_name=curve, show_display=show_display, coin_name=coin)
+    return {
+        'node': {
+            'depth': result.node.depth,
+            'fingerprint': "%08x" % result.node.fingerprint,
+            'child_num': result.node.child_num,
+            'chain_code': binascii.hexlify(result.node.chain_code),
+            'public_key': binascii.hexlify(result.node.public_key),
+        },
+        'xpub': result.xpub
+    }
 
 
 #
@@ -422,6 +436,39 @@ def verify_message(client, coin, address, signature, message):
     return client.verify_message(coin, address, signature, message)
 
 
+@cli.command(help='Sign message with Ethereum address.')
+@click.option('-n', '-address')
+@click.argument('message')
+@click.pass_obj
+def ethereum_sign_message(client, address, message):
+    address_n = client.expand_path(address)
+    ret = client.ethereum_sign_message(address_n, message)
+    output = {
+        'message': message,
+        'address': '0x' + binascii.hexlify(ret.address).decode('ascii'),
+        'signature': '0x' + binascii.hexlify(ret.signature).decode('ascii')
+    }
+    return output
+
+
+def ethereum_decode_hex(value):
+    if value.startswith('0x') or value.startswith('0X'):
+        return value[2:].decode('hex')
+    else:
+        return value.decode('hex')
+
+
+@cli.command(help='Verify message signed with Ethereum address.')
+@click.argument('address')
+@click.argument('signature')
+@click.argument('message')
+@click.pass_obj
+def ethereum_verify_message(client, address, signature, message):
+    address = ethereum_decode_hex(address)
+    signature = ethereum_decode_hex(signature)
+    return client.ethereum_verify_message(address, signature, message)
+
+
 @cli.command(help='Encrypt value by given key and path.')
 @click.option('-n', '-address')
 @click.argument('key')
@@ -546,10 +593,7 @@ def ethereum_sign_tx(client, host, chain_id, address, value, gas_limit, gas_pric
     if gas_limit is not None:
         gas_limit = int(gas_limit)
 
-    if to.startswith('0x') or to.startswith('0X'):
-        to_address = to[2:].decode('hex')
-    else:
-        to_address = to.decode('hex')
+    to_address = ethereum_decode_hex(to)
 
     address_n = client.expand_path(address)
     address = '0x%s' % (binascii.hexlify(client.ethereum_get_address(address_n)),)
@@ -560,9 +604,7 @@ def ethereum_sign_tx(client, host, chain_id, address, value, gas_limit, gas_pric
 
     if not data:
         data = ''
-    elif data.startswith('0x'):
-        data = data[2:]
-    data = binascii.unhexlify(data)
+    data = ethereum_decode_hex(data)
 
     if gas_price is None:
         gas_price = eth.eth_gasPrice()

trezorlib/client.py

@@ -572,6 +572,24 @@ class ProtocolMixin(object):
 
         return response.signature_v, response.signature_r, response.signature_s
 
+    @expect(proto.EthereumMessageSignature)
+    def ethereum_sign_message(self, n, message):
+        n = self._convert_prime(n)
+        # Convert message to UTF8 NFC (seems to be a bitcoin-qt standard)
+        message = normalize_nfc(message).encode('utf-8')
+        return self.call(proto.EthereumSignMessage(address_n=n, message=message))
+
+    def ethereum_verify_message(self, address, signature, message):
+        # Convert message to UTF8 NFC (seems to be a bitcoin-qt standard)
+        message = normalize_nfc(message).encode('utf-8')
+        try:
+            resp = self.call(proto.EthereumVerifyMessage(address=address, signature=signature, message=message))
+        except CallException as e:
+            resp = e
+        if isinstance(resp, proto.Success):
+            return True
+        return False
+
     @field('entropy')
     @expect(proto.Entropy)
     def get_entropy(self, size):

trezorlib/types_pb2.py

@@ -1,7 +1,7 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # source: types.proto
 # libprotoc 3.3.0
-# trezor-common fac66c686735246f32fe6b1f276a5a8e2d9c61d8
+# trezor-common b29b98d69ba43571dcbe54dc927aa3ecd2b95113
 
 import sys
 _b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))