diff --git a/bitkeylib/bitkey_pb2.py b/bitkeylib/bitkey_pb2.py
new file mode 100644
index 0000000000..f634fda535
--- /dev/null
+++ b/bitkeylib/bitkey_pb2.py
@@ -0,0 +1,1354 @@
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+
+from google.protobuf import descriptor
+from google.protobuf import message
+from google.protobuf import reflection
+from google.protobuf import descriptor_pb2
+# @@protoc_insertion_point(imports)
+
+
+
+DESCRIPTOR = descriptor.FileDescriptor(
+  name='bitkey.proto',
+  package='',
+  serialized_pb='\n\x0c\x62itkey.proto\" \n\nInitialize\x12\x12\n\nsession_id\x18\x01 \x02(\x0c\"\xc4\x01\n\x08\x46\x65\x61tures\x12\x12\n\nsession_id\x18\x01 \x02(\x0c\x12\x0e\n\x06vendor\x18\x02 \x01(\t\x12\x15\n\rmajor_version\x18\x03 \x01(\r\x12\x15\n\rminor_version\x18\x04 \x01(\r\x12\x0b\n\x03otp\x18\x05 \x01(\x08\x12\x0b\n\x03pin\x18\x06 \x01(\x08\x12\x0b\n\x03spv\x18\x07 \x01(\x08\x12\x11\n\tmaxfee_kb\x18\x08 \x01(\x04\x12\x18\n\x04\x61lgo\x18\t \x03(\x0e\x32\n.Algorithm\x12\x12\n\ndebug_link\x18\n \x01(\x08\"\x17\n\x04Ping\x12\x0f\n\x07message\x18\x01 \x01(\t\"#\n\x11\x44\x65\x62ugLinkDecision\x12\x0e\n\x06yes_no\x18\x01 \x02(\x08\"K\n\x11\x44\x65\x62ugLinkGetState\x12\x0e\n\x06layout\x18\x01 \x01(\x08\x12\x0b\n\x03otp\x18\x02 \x01(\x08\x12\x0b\n\x03pin\x18\x03 \x01(\x08\x12\x0c\n\x04seed\x18\x04 \x01(\x08\"Z\n\x0e\x44\x65\x62ugLinkState\x12\x0e\n\x06layout\x18\x01 \x01(\x0c\x12\x14\n\x03otp\x18\x02 \x01(\x0b\x32\x07.OtpAck\x12\x14\n\x03pin\x18\x03 \x01(\x0b\x32\x07.PinAck\x12\x0c\n\x04seed\x18\x04 \x01(\t\"\x1a\n\x07Success\x12\x0f\n\x07message\x18\x01 \x01(\t\"(\n\x07\x46\x61ilure\x12\x0c\n\x04\x63ode\x18\x01 \x01(\x05\x12\x0f\n\x07message\x18\x02 \x01(\t\"\t\n\x07GetUUID\"\x14\n\x04UUID\x12\x0c\n\x04UUID\x18\x01 \x02(\x0c\"\x0f\n\rButtonRequest\"\x0b\n\tButtonAck\"\x0e\n\x0c\x42uttonCancel\"\x1d\n\nOtpRequest\x12\x0f\n\x07message\x18\x01 \x01(\t\"\x15\n\x06OtpAck\x12\x0b\n\x03otp\x18\x01 \x02(\t\"\x0b\n\tOtpCancel\"\x1d\n\nPinRequest\x12\x0f\n\x07message\x18\x01 \x01(\t\"\x15\n\x06PinAck\x12\x0b\n\x03pin\x18\x01 \x02(\t\"\x0b\n\tPinCancel\"\x1a\n\nGetEntropy\x12\x0c\n\x04size\x18\x01 \x02(\r\"\x1a\n\x07\x45ntropy\x12\x0f\n\x07\x65ntropy\x18\x01 \x02(\x0c\" \n\x0bSetMaxFeeKb\x12\x11\n\tmaxfee_kb\x18\x01 \x02(\x04\"5\n\x12GetMasterPublicKey\x12\x1f\n\x04\x61lgo\x18\x01 \x02(\x0e\x32\n.Algorithm:\x05\x42IP32\"\x1e\n\x0fMasterPublicKey\x12\x0b\n\x03key\x18\x01 \x02(\x0c\"M\n\nLoadDevice\x12\x0c\n\x04seed\x18\x01 \x02(\t\x12\x11\n\x03otp\x18\x02 \x01(\x08:\x04true\x12\x0b\n\x03pin\x18\x03 \x01(\t\x12\x11\n\x03spv\x18\x04 \x01(\x08:\x04true\"\x1d\n\x0bResetDevice\x12\x0e\n\x06random\x18\x07 \x01(\x0c\"f\n\x06SignTx\x12\x1f\n\x04\x61lgo\x18\x01 \x02(\x0e\x32\n.Algorithm:\x05\x42IP32\x12\x15\n\routputs_count\x18\x03 \x03(\r\x12\x14\n\x0cinputs_count\x18\x05 \x03(\r\x12\x0e\n\x06random\x18\x06 \x01(\x0c\"N\n\x0cInputRequest\x12\x15\n\rrequest_index\x18\x01 \x01(\r\x12\x14\n\x0csigned_index\x18\x02 \x01(\r\x12\x11\n\tsignature\x18\x03 \x01(\x0c\"&\n\rOutputRequest\x12\x15\n\rrequest_index\x18\x01 \x02(\r\"v\n\x07TxInput\x12\r\n\x05index\x18\x01 \x02(\r\x12\x11\n\taddress_n\x18\x02 \x03(\r\x12\x0e\n\x06\x61mount\x18\x03 \x02(\x04\x12\x11\n\tprev_hash\x18\x04 \x02(\x0c\x12\x12\n\nprev_index\x18\x05 \x02(\r\x12\x12\n\nscript_sig\x18\x06 \x01(\x0c\"\x84\x01\n\x08TxOutput\x12\r\n\x05index\x18\x01 \x02(\r\x12\x0f\n\x07\x61\x64\x64ress\x18\x02 \x02(\t\x12\x11\n\taddress_n\x18\x03 \x03(\r\x12\x0e\n\x06\x61mount\x18\x04 \x02(\x04\x12 \n\x0bscript_type\x18\x05 \x02(\x0e\x32\x0b.ScriptType\x12\x13\n\x0bscript_args\x18\x06 \x03(\x0c*$\n\tAlgorithm\x12\t\n\x05\x42IP32\x10\x00\x12\x0c\n\x08\x45LECTRUM\x10\x01*3\n\nScriptType\x12\x10\n\x0cPAYTOADDRESS\x10\x00\x12\x13\n\x0fPAYTOSCRIPTHASH\x10\x01')
+
+_ALGORITHM = descriptor.EnumDescriptor(
+  name='Algorithm',
+  full_name='Algorithm',
+  filename=None,
+  file=DESCRIPTOR,
+  values=[
+    descriptor.EnumValueDescriptor(
+      name='BIP32', index=0, number=0,
+      options=None,
+      type=None),
+    descriptor.EnumValueDescriptor(
+      name='ELECTRUM', index=1, number=1,
+      options=None,
+      type=None),
+  ],
+  containing_type=None,
+  options=None,
+  serialized_start=1529,
+  serialized_end=1565,
+)
+
+
+_SCRIPTTYPE = descriptor.EnumDescriptor(
+  name='ScriptType',
+  full_name='ScriptType',
+  filename=None,
+  file=DESCRIPTOR,
+  values=[
+    descriptor.EnumValueDescriptor(
+      name='PAYTOADDRESS', index=0, number=0,
+      options=None,
+      type=None),
+    descriptor.EnumValueDescriptor(
+      name='PAYTOSCRIPTHASH', index=1, number=1,
+      options=None,
+      type=None),
+  ],
+  containing_type=None,
+  options=None,
+  serialized_start=1567,
+  serialized_end=1618,
+)
+
+
+BIP32 = 0
+ELECTRUM = 1
+PAYTOADDRESS = 0
+PAYTOSCRIPTHASH = 1
+
+
+
+_INITIALIZE = descriptor.Descriptor(
+  name='Initialize',
+  full_name='Initialize',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='session_id', full_name='Initialize.session_id', index=0,
+      number=1, type=12, cpp_type=9, label=2,
+      has_default_value=False, default_value="",
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=16,
+  serialized_end=48,
+)
+
+
+_FEATURES = descriptor.Descriptor(
+  name='Features',
+  full_name='Features',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='session_id', full_name='Features.session_id', index=0,
+      number=1, type=12, cpp_type=9, label=2,
+      has_default_value=False, default_value="",
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='vendor', full_name='Features.vendor', index=1,
+      number=2, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=unicode("", "utf-8"),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='major_version', full_name='Features.major_version', index=2,
+      number=3, type=13, cpp_type=3, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='minor_version', full_name='Features.minor_version', index=3,
+      number=4, type=13, cpp_type=3, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='otp', full_name='Features.otp', index=4,
+      number=5, type=8, cpp_type=7, label=1,
+      has_default_value=False, default_value=False,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='pin', full_name='Features.pin', index=5,
+      number=6, type=8, cpp_type=7, label=1,
+      has_default_value=False, default_value=False,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='spv', full_name='Features.spv', index=6,
+      number=7, type=8, cpp_type=7, label=1,
+      has_default_value=False, default_value=False,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='maxfee_kb', full_name='Features.maxfee_kb', index=7,
+      number=8, type=4, cpp_type=4, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='algo', full_name='Features.algo', index=8,
+      number=9, type=14, cpp_type=8, label=3,
+      has_default_value=False, default_value=[],
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='debug_link', full_name='Features.debug_link', index=9,
+      number=10, type=8, cpp_type=7, label=1,
+      has_default_value=False, default_value=False,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=51,
+  serialized_end=247,
+)
+
+
+_PING = descriptor.Descriptor(
+  name='Ping',
+  full_name='Ping',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='message', full_name='Ping.message', index=0,
+      number=1, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=unicode("", "utf-8"),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=249,
+  serialized_end=272,
+)
+
+
+_DEBUGLINKDECISION = descriptor.Descriptor(
+  name='DebugLinkDecision',
+  full_name='DebugLinkDecision',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='yes_no', full_name='DebugLinkDecision.yes_no', index=0,
+      number=1, type=8, cpp_type=7, label=2,
+      has_default_value=False, default_value=False,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=274,
+  serialized_end=309,
+)
+
+
+_DEBUGLINKGETSTATE = descriptor.Descriptor(
+  name='DebugLinkGetState',
+  full_name='DebugLinkGetState',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='layout', full_name='DebugLinkGetState.layout', index=0,
+      number=1, type=8, cpp_type=7, label=1,
+      has_default_value=False, default_value=False,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='otp', full_name='DebugLinkGetState.otp', index=1,
+      number=2, type=8, cpp_type=7, label=1,
+      has_default_value=False, default_value=False,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='pin', full_name='DebugLinkGetState.pin', index=2,
+      number=3, type=8, cpp_type=7, label=1,
+      has_default_value=False, default_value=False,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='seed', full_name='DebugLinkGetState.seed', index=3,
+      number=4, type=8, cpp_type=7, label=1,
+      has_default_value=False, default_value=False,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=311,
+  serialized_end=386,
+)
+
+
+_DEBUGLINKSTATE = descriptor.Descriptor(
+  name='DebugLinkState',
+  full_name='DebugLinkState',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='layout', full_name='DebugLinkState.layout', index=0,
+      number=1, type=12, cpp_type=9, label=1,
+      has_default_value=False, default_value="",
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='otp', full_name='DebugLinkState.otp', index=1,
+      number=2, type=11, cpp_type=10, label=1,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='pin', full_name='DebugLinkState.pin', index=2,
+      number=3, type=11, cpp_type=10, label=1,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='seed', full_name='DebugLinkState.seed', index=3,
+      number=4, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=unicode("", "utf-8"),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=388,
+  serialized_end=478,
+)
+
+
+_SUCCESS = descriptor.Descriptor(
+  name='Success',
+  full_name='Success',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='message', full_name='Success.message', index=0,
+      number=1, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=unicode("", "utf-8"),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=480,
+  serialized_end=506,
+)
+
+
+_FAILURE = descriptor.Descriptor(
+  name='Failure',
+  full_name='Failure',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='code', full_name='Failure.code', index=0,
+      number=1, type=5, cpp_type=1, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='message', full_name='Failure.message', index=1,
+      number=2, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=unicode("", "utf-8"),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=508,
+  serialized_end=548,
+)
+
+
+_GETUUID = descriptor.Descriptor(
+  name='GetUUID',
+  full_name='GetUUID',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=550,
+  serialized_end=559,
+)
+
+
+_UUID = descriptor.Descriptor(
+  name='UUID',
+  full_name='UUID',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='UUID', full_name='UUID.UUID', index=0,
+      number=1, type=12, cpp_type=9, label=2,
+      has_default_value=False, default_value="",
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=561,
+  serialized_end=581,
+)
+
+
+_BUTTONREQUEST = descriptor.Descriptor(
+  name='ButtonRequest',
+  full_name='ButtonRequest',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=583,
+  serialized_end=598,
+)
+
+
+_BUTTONACK = descriptor.Descriptor(
+  name='ButtonAck',
+  full_name='ButtonAck',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=600,
+  serialized_end=611,
+)
+
+
+_BUTTONCANCEL = descriptor.Descriptor(
+  name='ButtonCancel',
+  full_name='ButtonCancel',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=613,
+  serialized_end=627,
+)
+
+
+_OTPREQUEST = descriptor.Descriptor(
+  name='OtpRequest',
+  full_name='OtpRequest',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='message', full_name='OtpRequest.message', index=0,
+      number=1, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=unicode("", "utf-8"),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=629,
+  serialized_end=658,
+)
+
+
+_OTPACK = descriptor.Descriptor(
+  name='OtpAck',
+  full_name='OtpAck',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='otp', full_name='OtpAck.otp', index=0,
+      number=1, type=9, cpp_type=9, label=2,
+      has_default_value=False, default_value=unicode("", "utf-8"),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=660,
+  serialized_end=681,
+)
+
+
+_OTPCANCEL = descriptor.Descriptor(
+  name='OtpCancel',
+  full_name='OtpCancel',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=683,
+  serialized_end=694,
+)
+
+
+_PINREQUEST = descriptor.Descriptor(
+  name='PinRequest',
+  full_name='PinRequest',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='message', full_name='PinRequest.message', index=0,
+      number=1, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=unicode("", "utf-8"),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=696,
+  serialized_end=725,
+)
+
+
+_PINACK = descriptor.Descriptor(
+  name='PinAck',
+  full_name='PinAck',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='pin', full_name='PinAck.pin', index=0,
+      number=1, type=9, cpp_type=9, label=2,
+      has_default_value=False, default_value=unicode("", "utf-8"),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=727,
+  serialized_end=748,
+)
+
+
+_PINCANCEL = descriptor.Descriptor(
+  name='PinCancel',
+  full_name='PinCancel',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=750,
+  serialized_end=761,
+)
+
+
+_GETENTROPY = descriptor.Descriptor(
+  name='GetEntropy',
+  full_name='GetEntropy',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='size', full_name='GetEntropy.size', index=0,
+      number=1, type=13, cpp_type=3, label=2,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=763,
+  serialized_end=789,
+)
+
+
+_ENTROPY = descriptor.Descriptor(
+  name='Entropy',
+  full_name='Entropy',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='entropy', full_name='Entropy.entropy', index=0,
+      number=1, type=12, cpp_type=9, label=2,
+      has_default_value=False, default_value="",
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=791,
+  serialized_end=817,
+)
+
+
+_SETMAXFEEKB = descriptor.Descriptor(
+  name='SetMaxFeeKb',
+  full_name='SetMaxFeeKb',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='maxfee_kb', full_name='SetMaxFeeKb.maxfee_kb', index=0,
+      number=1, type=4, cpp_type=4, label=2,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=819,
+  serialized_end=851,
+)
+
+
+_GETMASTERPUBLICKEY = descriptor.Descriptor(
+  name='GetMasterPublicKey',
+  full_name='GetMasterPublicKey',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='algo', full_name='GetMasterPublicKey.algo', index=0,
+      number=1, type=14, cpp_type=8, label=2,
+      has_default_value=True, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=853,
+  serialized_end=906,
+)
+
+
+_MASTERPUBLICKEY = descriptor.Descriptor(
+  name='MasterPublicKey',
+  full_name='MasterPublicKey',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='key', full_name='MasterPublicKey.key', index=0,
+      number=1, type=12, cpp_type=9, label=2,
+      has_default_value=False, default_value="",
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=908,
+  serialized_end=938,
+)
+
+
+_LOADDEVICE = descriptor.Descriptor(
+  name='LoadDevice',
+  full_name='LoadDevice',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='seed', full_name='LoadDevice.seed', index=0,
+      number=1, type=9, cpp_type=9, label=2,
+      has_default_value=False, default_value=unicode("", "utf-8"),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='otp', full_name='LoadDevice.otp', index=1,
+      number=2, type=8, cpp_type=7, label=1,
+      has_default_value=True, default_value=True,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='pin', full_name='LoadDevice.pin', index=2,
+      number=3, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=unicode("", "utf-8"),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='spv', full_name='LoadDevice.spv', index=3,
+      number=4, type=8, cpp_type=7, label=1,
+      has_default_value=True, default_value=True,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=940,
+  serialized_end=1017,
+)
+
+
+_RESETDEVICE = descriptor.Descriptor(
+  name='ResetDevice',
+  full_name='ResetDevice',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='random', full_name='ResetDevice.random', index=0,
+      number=7, type=12, cpp_type=9, label=1,
+      has_default_value=False, default_value="",
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=1019,
+  serialized_end=1048,
+)
+
+
+_SIGNTX = descriptor.Descriptor(
+  name='SignTx',
+  full_name='SignTx',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='algo', full_name='SignTx.algo', index=0,
+      number=1, type=14, cpp_type=8, label=2,
+      has_default_value=True, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='outputs_count', full_name='SignTx.outputs_count', index=1,
+      number=3, type=13, cpp_type=3, label=3,
+      has_default_value=False, default_value=[],
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='inputs_count', full_name='SignTx.inputs_count', index=2,
+      number=5, type=13, cpp_type=3, label=3,
+      has_default_value=False, default_value=[],
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='random', full_name='SignTx.random', index=3,
+      number=6, type=12, cpp_type=9, label=1,
+      has_default_value=False, default_value="",
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=1050,
+  serialized_end=1152,
+)
+
+
+_INPUTREQUEST = descriptor.Descriptor(
+  name='InputRequest',
+  full_name='InputRequest',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='request_index', full_name='InputRequest.request_index', index=0,
+      number=1, type=13, cpp_type=3, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='signed_index', full_name='InputRequest.signed_index', index=1,
+      number=2, type=13, cpp_type=3, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='signature', full_name='InputRequest.signature', index=2,
+      number=3, type=12, cpp_type=9, label=1,
+      has_default_value=False, default_value="",
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=1154,
+  serialized_end=1232,
+)
+
+
+_OUTPUTREQUEST = descriptor.Descriptor(
+  name='OutputRequest',
+  full_name='OutputRequest',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='request_index', full_name='OutputRequest.request_index', index=0,
+      number=1, type=13, cpp_type=3, label=2,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=1234,
+  serialized_end=1272,
+)
+
+
+_TXINPUT = descriptor.Descriptor(
+  name='TxInput',
+  full_name='TxInput',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='index', full_name='TxInput.index', index=0,
+      number=1, type=13, cpp_type=3, label=2,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='address_n', full_name='TxInput.address_n', index=1,
+      number=2, type=13, cpp_type=3, label=3,
+      has_default_value=False, default_value=[],
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='amount', full_name='TxInput.amount', index=2,
+      number=3, type=4, cpp_type=4, label=2,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='prev_hash', full_name='TxInput.prev_hash', index=3,
+      number=4, type=12, cpp_type=9, label=2,
+      has_default_value=False, default_value="",
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='prev_index', full_name='TxInput.prev_index', index=4,
+      number=5, type=13, cpp_type=3, label=2,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='script_sig', full_name='TxInput.script_sig', index=5,
+      number=6, type=12, cpp_type=9, label=1,
+      has_default_value=False, default_value="",
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=1274,
+  serialized_end=1392,
+)
+
+
+_TXOUTPUT = descriptor.Descriptor(
+  name='TxOutput',
+  full_name='TxOutput',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    descriptor.FieldDescriptor(
+      name='index', full_name='TxOutput.index', index=0,
+      number=1, type=13, cpp_type=3, label=2,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='address', full_name='TxOutput.address', index=1,
+      number=2, type=9, cpp_type=9, label=2,
+      has_default_value=False, default_value=unicode("", "utf-8"),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='address_n', full_name='TxOutput.address_n', index=2,
+      number=3, type=13, cpp_type=3, label=3,
+      has_default_value=False, default_value=[],
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='amount', full_name='TxOutput.amount', index=3,
+      number=4, type=4, cpp_type=4, label=2,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='script_type', full_name='TxOutput.script_type', index=4,
+      number=5, type=14, cpp_type=8, label=2,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    descriptor.FieldDescriptor(
+      name='script_args', full_name='TxOutput.script_args', index=5,
+      number=6, type=12, cpp_type=9, label=3,
+      has_default_value=False, default_value=[],
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=1395,
+  serialized_end=1527,
+)
+
+_FEATURES.fields_by_name['algo'].enum_type = _ALGORITHM
+_DEBUGLINKSTATE.fields_by_name['otp'].message_type = _OTPACK
+_DEBUGLINKSTATE.fields_by_name['pin'].message_type = _PINACK
+_GETMASTERPUBLICKEY.fields_by_name['algo'].enum_type = _ALGORITHM
+_SIGNTX.fields_by_name['algo'].enum_type = _ALGORITHM
+_TXOUTPUT.fields_by_name['script_type'].enum_type = _SCRIPTTYPE
+DESCRIPTOR.message_types_by_name['Initialize'] = _INITIALIZE
+DESCRIPTOR.message_types_by_name['Features'] = _FEATURES
+DESCRIPTOR.message_types_by_name['Ping'] = _PING
+DESCRIPTOR.message_types_by_name['DebugLinkDecision'] = _DEBUGLINKDECISION
+DESCRIPTOR.message_types_by_name['DebugLinkGetState'] = _DEBUGLINKGETSTATE
+DESCRIPTOR.message_types_by_name['DebugLinkState'] = _DEBUGLINKSTATE
+DESCRIPTOR.message_types_by_name['Success'] = _SUCCESS
+DESCRIPTOR.message_types_by_name['Failure'] = _FAILURE
+DESCRIPTOR.message_types_by_name['GetUUID'] = _GETUUID
+DESCRIPTOR.message_types_by_name['UUID'] = _UUID
+DESCRIPTOR.message_types_by_name['ButtonRequest'] = _BUTTONREQUEST
+DESCRIPTOR.message_types_by_name['ButtonAck'] = _BUTTONACK
+DESCRIPTOR.message_types_by_name['ButtonCancel'] = _BUTTONCANCEL
+DESCRIPTOR.message_types_by_name['OtpRequest'] = _OTPREQUEST
+DESCRIPTOR.message_types_by_name['OtpAck'] = _OTPACK
+DESCRIPTOR.message_types_by_name['OtpCancel'] = _OTPCANCEL
+DESCRIPTOR.message_types_by_name['PinRequest'] = _PINREQUEST
+DESCRIPTOR.message_types_by_name['PinAck'] = _PINACK
+DESCRIPTOR.message_types_by_name['PinCancel'] = _PINCANCEL
+DESCRIPTOR.message_types_by_name['GetEntropy'] = _GETENTROPY
+DESCRIPTOR.message_types_by_name['Entropy'] = _ENTROPY
+DESCRIPTOR.message_types_by_name['SetMaxFeeKb'] = _SETMAXFEEKB
+DESCRIPTOR.message_types_by_name['GetMasterPublicKey'] = _GETMASTERPUBLICKEY
+DESCRIPTOR.message_types_by_name['MasterPublicKey'] = _MASTERPUBLICKEY
+DESCRIPTOR.message_types_by_name['LoadDevice'] = _LOADDEVICE
+DESCRIPTOR.message_types_by_name['ResetDevice'] = _RESETDEVICE
+DESCRIPTOR.message_types_by_name['SignTx'] = _SIGNTX
+DESCRIPTOR.message_types_by_name['InputRequest'] = _INPUTREQUEST
+DESCRIPTOR.message_types_by_name['OutputRequest'] = _OUTPUTREQUEST
+DESCRIPTOR.message_types_by_name['TxInput'] = _TXINPUT
+DESCRIPTOR.message_types_by_name['TxOutput'] = _TXOUTPUT
+
+class Initialize(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _INITIALIZE
+  
+  # @@protoc_insertion_point(class_scope:Initialize)
+
+class Features(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _FEATURES
+  
+  # @@protoc_insertion_point(class_scope:Features)
+
+class Ping(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _PING
+  
+  # @@protoc_insertion_point(class_scope:Ping)
+
+class DebugLinkDecision(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _DEBUGLINKDECISION
+  
+  # @@protoc_insertion_point(class_scope:DebugLinkDecision)
+
+class DebugLinkGetState(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _DEBUGLINKGETSTATE
+  
+  # @@protoc_insertion_point(class_scope:DebugLinkGetState)
+
+class DebugLinkState(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _DEBUGLINKSTATE
+  
+  # @@protoc_insertion_point(class_scope:DebugLinkState)
+
+class Success(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _SUCCESS
+  
+  # @@protoc_insertion_point(class_scope:Success)
+
+class Failure(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _FAILURE
+  
+  # @@protoc_insertion_point(class_scope:Failure)
+
+class GetUUID(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _GETUUID
+  
+  # @@protoc_insertion_point(class_scope:GetUUID)
+
+class UUID(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _UUID
+  
+  # @@protoc_insertion_point(class_scope:UUID)
+
+class ButtonRequest(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _BUTTONREQUEST
+  
+  # @@protoc_insertion_point(class_scope:ButtonRequest)
+
+class ButtonAck(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _BUTTONACK
+  
+  # @@protoc_insertion_point(class_scope:ButtonAck)
+
+class ButtonCancel(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _BUTTONCANCEL
+  
+  # @@protoc_insertion_point(class_scope:ButtonCancel)
+
+class OtpRequest(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _OTPREQUEST
+  
+  # @@protoc_insertion_point(class_scope:OtpRequest)
+
+class OtpAck(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _OTPACK
+  
+  # @@protoc_insertion_point(class_scope:OtpAck)
+
+class OtpCancel(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _OTPCANCEL
+  
+  # @@protoc_insertion_point(class_scope:OtpCancel)
+
+class PinRequest(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _PINREQUEST
+  
+  # @@protoc_insertion_point(class_scope:PinRequest)
+
+class PinAck(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _PINACK
+  
+  # @@protoc_insertion_point(class_scope:PinAck)
+
+class PinCancel(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _PINCANCEL
+  
+  # @@protoc_insertion_point(class_scope:PinCancel)
+
+class GetEntropy(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _GETENTROPY
+  
+  # @@protoc_insertion_point(class_scope:GetEntropy)
+
+class Entropy(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _ENTROPY
+  
+  # @@protoc_insertion_point(class_scope:Entropy)
+
+class SetMaxFeeKb(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _SETMAXFEEKB
+  
+  # @@protoc_insertion_point(class_scope:SetMaxFeeKb)
+
+class GetMasterPublicKey(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _GETMASTERPUBLICKEY
+  
+  # @@protoc_insertion_point(class_scope:GetMasterPublicKey)
+
+class MasterPublicKey(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _MASTERPUBLICKEY
+  
+  # @@protoc_insertion_point(class_scope:MasterPublicKey)
+
+class LoadDevice(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _LOADDEVICE
+  
+  # @@protoc_insertion_point(class_scope:LoadDevice)
+
+class ResetDevice(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _RESETDEVICE
+  
+  # @@protoc_insertion_point(class_scope:ResetDevice)
+
+class SignTx(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _SIGNTX
+  
+  # @@protoc_insertion_point(class_scope:SignTx)
+
+class InputRequest(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _INPUTREQUEST
+  
+  # @@protoc_insertion_point(class_scope:InputRequest)
+
+class OutputRequest(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _OUTPUTREQUEST
+  
+  # @@protoc_insertion_point(class_scope:OutputRequest)
+
+class TxInput(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _TXINPUT
+  
+  # @@protoc_insertion_point(class_scope:TxInput)
+
+class TxOutput(message.Message):
+  __metaclass__ = reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _TXOUTPUT
+  
+  # @@protoc_insertion_point(class_scope:TxOutput)
+
+# @@protoc_insertion_point(module_scope)
diff --git a/bitkeylib/mapping.py b/bitkeylib/mapping.py
index 87f0cae1fc..a671689c03 100644
--- a/bitkeylib/mapping.py
+++ b/bitkeylib/mapping.py
@@ -27,6 +27,9 @@ map_type_to_class = {
        23: proto.TxInput,
        24: proto.TxOutput,
        25: proto.SetMaxFeeKb,
+       26: proto.ButtonRequest,
+       27: proto.ButtonAck,
+       28: proto.ButtonCancel,
        100: proto.DebugLinkDecision,
        101: proto.DebugLinkGetState,
        102: proto.DebugLinkState,
diff --git a/protobuf/bitkey.proto b/protobuf/bitkey.proto
index 9935a91508..302b0256f3 100644
--- a/protobuf/bitkey.proto
+++ b/protobuf/bitkey.proto
@@ -95,6 +95,21 @@ message UUID {
     required bytes UUID = 1;
 }
 
+// Message can be sent by the *device* as a resopnse to any request.
+// Device is waiting for HW button press. No action is required from computer
+// Computer should respond with ButtonAck message or ButtonCancel to cancel
+// the original request.
+message ButtonRequest {
+}
+
+// Computer agrees to wait for HW button press.
+message ButtonAck {
+}
+
+// Computer want to cancel current action (don't wait to HW button press)
+message ButtonCancel {
+}
+ 
 // Message can be sent by the *device* as a response to any request.
 // Message asks computer to send back OtpAck with the password printed on the device's display.
 //