diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 000000000..d22c9dbfa
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "trezor-common"]
+	path = trezor-common
+	url = https://github.com/trezor/trezor-common.git
diff --git a/build_pb.sh b/build_pb.sh
new file mode 100755
index 000000000..53461d5d7
--- /dev/null
+++ b/build_pb.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+cd ./trezor-common/protob
+protoc --python_out=../../trezorlib/ -I/usr/include -I. -I. trezor.proto
diff --git a/protob/build.sh b/protob/build.sh
deleted file mode 100755
index e9d9bdfbb..000000000
--- a/protob/build.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/bash
-
-cd `dirname $0`
-
-protoc --python_out=../trezorlib/ -I/usr/include -I. trezor.proto
diff --git a/protob/trezor.proto b/protob/trezor.proto
deleted file mode 100644
index 72481cd3e..000000000
--- a/protob/trezor.proto
+++ /dev/null
@@ -1,401 +0,0 @@
-/*
-	Messages for TREZOR communication
-
-	Author: Marek Palatinus <slush@satoshilabs.com>
-
-	Version: 0.5
-*/
-
-import "google/protobuf/descriptor.proto";
-
-extend google.protobuf.FieldOptions {
-	optional bool binary = 50001;	// message field has binary payload
-}
-
-extend google.protobuf.EnumValueOptions {
-	optional bool wire_in = 50002;	// message can be transmitted via wire from PC to TREZOR
-	optional bool wire_out = 50003;	// message can be transmitted via wire from TREZOR to PC
-	optional bool wire_debug_in = 50004;	// message can be transmitted via debug wire from PC to TREZOR
-	optional bool wire_debug_out = 50005;	// message can be transmitted via debug wire from TREZOR to PC
-}
-
-/*
-	Mapping between Trezor wire identifier (int) and protobuf message
-*/
-enum MessageType {
-	MessageType_Initialize = 0 [(wire_in) = true];
-	MessageType_Ping = 1 [(wire_in) = true];
-	MessageType_Success = 2 [(wire_out) = true];
-	MessageType_Failure = 3 [(wire_out) = true];
-	MessageType_ChangePin = 4 [(wire_in) = true];
-	MessageType_WipeDevice = 5 [(wire_in) = true];
-	MessageType_FirmwareErase = 6 [(wire_in) = true];
-	MessageType_FirmwareUpload = 7 [(wire_in) = true];
-	MessageType_GetEntropy = 9 [(wire_in) = true];
-	MessageType_Entropy = 10 [(wire_out) = true];
-	MessageType_GetMasterPublicKey = 11 [(wire_in) = true];
-	MessageType_MasterPublicKey = 12 [(wire_out) = true];
-	MessageType_LoadDevice = 13 [(wire_in) = true];
-	MessageType_ResetDevice = 14 [(wire_in) = true];
-	MessageType_SignTx = 15 [(wire_in) = true];
-	MessageType_SimpleSignTx = 16 [(wire_in) = true];
-	MessageType_Features = 17 [(wire_out) = true];
-	MessageType_PinMatrixRequest = 18 [(wire_out) = true];
-	MessageType_PinMatrixAck = 19 [(wire_in) = true];
-	MessageType_PinMatrixCancel = 20 [(wire_in) = true];
-	MessageType_TxRequest = 21 [(wire_out) = true];
-	MessageType_TxInput = 23 [(wire_in) = true];
-	MessageType_TxOutput = 24 [(wire_in) = true];
-	MessageType_ApplySettings = 25 [(wire_in) = true];
-	MessageType_ButtonRequest = 26 [(wire_out) = true];
-	MessageType_ButtonAck = 27 [(wire_in) = true];
-	MessageType_ButtonCancel = 28 [(wire_in) = true];
-	MessageType_GetAddress = 29 [(wire_in) = true];
-	MessageType_Address = 30 [(wire_out) = true];
-	MessageType_SettingsType = 31;
-	MessageType_XprvType = 32;
-	MessageType_CoinType = 33;
-	MessageType_XpubType = 34;
-	MessageType_EntropyRequest = 35 [(wire_out) = true];
-	MessageType_EntropyAck = 36 [(wire_in) = true];
-	MessageType_DebugLinkDecision = 100 [(wire_debug_in) = true];
-	MessageType_DebugLinkGetState = 101 [(wire_debug_in) = true];
-	MessageType_DebugLinkState = 102 [(wire_debug_out) = true];
-	MessageType_DebugLinkStop = 103 [(wire_debug_in) = true];
-}
-
-// ****************************************************************************
-//
-// Definition of custom field types
-//
-
-enum FailureType {
-	Failure_UnexpectedMessage = 1;
-	Failure_ButtonExpected = 2;
-	Failure_SyntaxError = 3;
-	Failure_ActionCancelled = 4;
-	Failure_PinExpected = 5;
-	Failure_PinCancelled = 6;
-	Failure_PinInvalid = 7;
-	Failure_FirmwareError = 99;
-}
-
-// Specifies which script will be used for given transaction output.
-enum ScriptType {
-	PAYTOADDRESS = 0;
-	PAYTOSCRIPTHASH = 1;
-}
-
-// Specifies which kind of information is required by transaction signing process
-enum RequestType {
-	TXINPUT = 0;
-	TXOUTPUT = 1;
-}
-
-// Structure for BIP32-encoded node
-// Used for imports into the device
-message XprvType {
-	required uint32 version = 1;
-	required uint32 depth = 2;
-	required uint32 fingerprint = 3;
-	required uint32 child_num = 4;
-	required bytes chain_code = 5 [(binary) = true];
-	required bytes private_key = 6 [(binary) = true];
-}
-
-// Structure returned by GetMasterPublicKey
-message XpubType {
-	required uint32 version = 1;
-	required uint32 depth = 2;
-	required uint32 fingerprint = 3;
-	required uint32 child_num = 4;
-	required bytes chain_code = 5 [(binary) = true];
-	required bytes public_key = 6 [(binary) = true];
-}
-
-message CoinType {
-	optional bytes coin_name = 1;
-	optional bytes coin_shortcut = 2;
-	optional uint32 address_type = 3;
-	optional uint64 maxfee_kb = 4;
-}
-
-message SettingsType {
-	optional bytes language = 1;		// Trezor uses 'english' as default
-	optional CoinType coin = 2;
-	optional bytes label = 3;		// Human readable wallet name
-}
-
-// ****************************************************************************
-//
-// Basic message
-//
-
-// Reset device to default state and ask for device details
-//
-// Response: Features
-message Initialize {
-}
-
-// Response object for Initialize.
-message Features {
-	optional bytes vendor = 1;				// Name of the manufacturer, e.g. "bitcointrezor.com"
-	optional uint32 major_version = 2;			// Major version of the device, e.g. 1
-	optional uint32 minor_version = 3;			// Minor version of the device, e.g. 0
-	optional uint32 bugfix_version = 4;
-	optional bool bootloader_mode = 5;
-	optional SettingsType settings = 6;			// User-level settings of the device
-	optional bytes device_id = 7 [(binary) = true];		// Device's unique identifier
-	optional bytes mpk_hash = 8 [(binary) = true];		// Hash of master public key (sha256(XpubType.public_key).digest())
-	optional bool pin_protection = 9;			// True if Trezor is covered by PIN
-}
-
-// Overwrites only filled fields of the structure
-message ApplySettings {
-	optional bytes language = 1;
-	optional bytes coin_shortcut = 2;
-	optional bytes label = 3;
-}
-
-// Starts workflow for setting/changing the PIN
-// Response: ButtonRequest, PinMatrixRequest
-message ChangePin {
-	optional bool remove = 1;	// Set True if want to remove PIN protection
-}
-
-// Test if device is live, device will send back the message on success
-//
-// Response: None or Success
-message Ping {
-	optional bytes message = 1;	// Message will be sent back in Success message
-}
-
-// Response object defining success of the previous request
-message Success {
-	optional bytes message = 1;	// May contain human readable description of the action or request-specific payload
-}
-
-// Response object defining failure of the previous request
-message Failure {
-	optional FailureType code = 1;		// May contain computer-readable definition of the error state
-	optional bytes message = 2;		// May contain human-readable message of the error state
-}
-
-// 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 PinMatrixAck with the password encoded in pin matrix scheme.
-//
-// Response: PinMatrixAck, PinMatrixCancel
-message PinMatrixRequest {
-	optional bytes message = 1;	// Human readable message
-}
-
-// Message is sent by the computer as a response to PinMatrixRequest previously sent by the device.
-message PinMatrixAck {
-	required bytes pin = 1;		// User must write down the password for accessing the device.
-}
-
-// Message is sent as a response to PinMatrixRequest by the computer, asking the device to cancel
-// pending action and reset to the default state.
-message PinMatrixCancel {
-}
-
-// Request a sample of random data generated by hardware RNG. May be used
-// for tests of internal RNG.
-//
-// Response: PinMatrixRequest, Entropy, Failure
-message GetEntropy {
-	required uint32 size = 1;	// Size of randomly generated buffer
-}
-
-// Response to GetEntropy request contains random data generated by internal HRNG.
-message Entropy {
-	required bytes entropy = 1 [(binary) = true];	// Stream of generated bytes
-}
-
-// Ask device for it's current master public key. This may be used for generating
-// public keys on the computer independently to the device. API doesn't provide
-// any other way how to get bitcoin addresses from the device.
-//
-// Response: MasterPublicKey, Failure
-message GetMasterPublicKey {
-}
-
-// Contains master public key derived from device's seed.
-message MasterPublicKey {
-	required XpubType mpk = 1;	// BIP32 node public key + chaincode
-}
-
-message GetAddress {
-	repeated uint32 address_n = 1;	// Parameter for address generation algorithm to derive the address from the master public key
-}
-
-message Address {
-	required bytes address = 1;	// Bitcoin address in base58 encoding corresponding to GetAddress(n) call
-}
-
-// Request device to wipe all sensitive data and settings.
-// Device will be turned to uninitialized state.
-//
-// Response: ButtonRequest
-message WipeDevice {
-}
-
-// Load seed and related internal settings from computer to the device. Existing seed is overwritten.
-//
-// Response: Success, ButtonRequest, PinMatrixRequest, Failure
-message LoadDevice {
-	optional bytes seed = 1;	// Seed encoded as a mnemonic (12 english words)
-	optional XprvType xprv = 2;
-	optional bytes pin = 3;		// Set PIN protection for important actions
-}
-
-// Request device to do full-reset, to generate new seed
-// and ask user for new settings (PIN).
-// Workflow is splitted into ResetDevice/EntropyRequest to be sure
-// that entropy provided by device isn't calculated on base of computer provided
-// entropy.
-//
-//
-// Response: EntropyRequest, PinMatrixRequest, Failure
-message ResetDevice {
-	optional bool display_random = 1;	// If set, displays entropy generated by the device used
-						// for generating the seed *before* asking
-						// for additional entropy from computer
-}
-
-// Asks for additional Entropy from host computer
-message EntropyRequest {
-}
-
-// Provide additional entropy for seed generation function.
-message EntropyAck {
-	optional bytes entropy = 1 [(binary) = true];	// Recommended to provide 256 bytes of random data.
-}
-
-// ****************************************************************************
-//
-// Messages related to transaction signing
-//
-
-// Request the device to sign the transaction
-//
-// Response: TxRequest, PinMatrixRequest, Failure
-message SignTx {
-	required uint32 outputs_count = 3;		// Count of outputs of the transaction
-	required uint32 inputs_count = 5;		// Count of inputs of the transaction
-}
-
-// Request a simplified workflow of signing.
-// This method doesn't support streaming,
-// so there may be hardware limits
-// in number of inputs and outputs.
-//
-// This simplified workflow should not be used
-// in production, it is designed mainly for debug purposes.
-//
-// When everything is fine, Success.message contains
-// serialized transaction.
-//
-// Response: Success, PinMatrixRequest, Failure
-message SimpleSignTx {
-	repeated TxInput inputs = 1;
-	repeated TxOutput outputs = 2;
-}
-
-// Sent by the device as a response for SignTx. Device asks for information for signing transaction.
-// If request_index is set, device asks for TxInput/TxOutput message (depends on request_type)
-// with details of index's input.
-// If signed_index is set, 'signature' contains signed input of signed_index's input.
-message TxRequest {
-	optional int32 request_index = 1;			// If >=0, device expects TxInput/TxOutput message from the computer
-	optional RequestType request_type = 2;			// Ask for TxInput or TxOutput?
-	optional int32 signed_index = 3;			// If >=0, 'signature' contains signed input of this input
-	optional bytes signature = 4 [(binary) = true];		// If signed_index>=0, represent signature of the signed_index input
-	optional bytes serialized_tx = 5 [(binary) = true];	// Part of serialized and signed transaction
-}
-
-// Transaction onput for SignTx workflow. It is response to TxRequest message sent by device.
-//
-// Response: TxRequest, Failure
-message TxInput {
-	required uint32 index = 1;				// Position of input in proposed transaction
-	repeated uint32 address_n = 2;				// Parameter for address generation algorithm to derive the address from the master public key
-	required uint64 amount = 3;				// Amount to spend in satoshis. The rest will be used for transaction fees
-	required bytes prev_hash = 4 [(binary) = true];		// Hash of previous transaction output to spend by this input
-	required uint32 prev_index = 5;				// Index of previous output to spend
-	optional bytes script_sig = 6 [(binary) = true];	// Script signature
-}
-
-// Transaction output for SignTx workflow. It is response to TxRequest message sent by the device.
-message TxOutput {
-	required uint32 index = 1;				// Position of output in proposed transaction
-	required bytes address = 2;				// Target bitcoin address in base58 encoding
-	repeated uint32 address_n = 3;				// Has higher priority than "address". If the output is to myself, specify parameter for address generation algorithm.
-	required uint64 amount = 4;				// Amount to send in satoshis
-	required ScriptType script_type = 5;			// Select output script type
-	repeated bytes script_args = 6 [(binary) = true];	// Provide additional parameters for the script (its script-depended)
-}
-
-// ****************************************************************************
-//
-// Bootloader messages
-//
-
-message FirmwareErase {
-}
-
-message FirmwareUpload {
-	required bytes payload = 1 [(binary) = true];		// Firmware to flash into device
-}
-
-// ****************************************************************************
-//
-//	Debug* messages are used only on DebugLink interface (separated from USB HID)
-//
-
-// Virtually "press" the button on the device.
-// Message is available only on debugging connection and device must support "debug_link" feature.
-//
-// Response: Success
-message DebugLinkDecision {
-	required bool yes_no = 1;				// True for "confirm", False for "cancel"
-}
-
-// When sent over debug link connection, computer asks for some internal information of the device.
-//
-// Response: DebugLinkState
-message DebugLinkGetState {
-	optional bool layout = 1;	// Request raw buffer of display
-	optional bool pin = 2;		// Request current pin
-	optional bool matrix = 3;	// Request current pin matrix
-	optional bool seed = 4;		// Request current seed
-//	optional bool state = 5;
-}
-
-// Response object reflecting device's current state. It can be received only over debug link connection.
-message DebugLinkState {
-	optional bytes layout = 1 [(binary) = true];		// Raw buffer of display
-	optional bytes pin = 2;					// Current PIN, blank if PIN is not set/enabled
-	optional bytes matrix = 3;				// Current PIN matrix
-	optional bytes seed = 4;				// Current seed (in mnemonic format)
-//	optional bytes state = 5 [(binary) = true];
-}
-
-// Ask device to shutdown/restart
-message DebugLinkStop {
-}
diff --git a/trezor-common b/trezor-common
new file mode 160000
index 000000000..fccebb724
--- /dev/null
+++ b/trezor-common
@@ -0,0 +1 @@
+Subproject commit fccebb724cc8446cb2040f5468a2e451463e38ab
diff --git a/trezor-udev.rules b/trezor-udev.rules
deleted file mode 100644
index 555565ae4..000000000
--- a/trezor-udev.rules
+++ /dev/null
@@ -1,8 +0,0 @@
-# TREZOR: The Hardware Bitcoin Wallet
-# http://bitcointrezor.com/
-
-# TREZOR
-SUBSYSTEM=="usb", ATTR{idVendor}=="534c", ATTR{idProduct}=="0001", MODE="0666", GROUP="dialout", SYMLINK+="trezor%n"
-
-# TREZOR Raspberry Pi Shield
-SUBSYSTEM=="usb", ATTR{idVendor}=="10c4", ATTR{idProduct}=="ea80", MODE="0666", GROUP="dialout", SYMLINK+="trezor%n"
diff --git a/trezorlib/__init__.py b/trezorlib/__init__.py
index a0c8359d4..c171386e3 100644
--- a/trezorlib/__init__.py
+++ b/trezorlib/__init__.py
@@ -1,6 +1,6 @@
 try:
     import trezor_pb2 as proto
 except ImportError:
-    print "trezor_pb2.py not found. Please run /protobuf/build.sh to generate it!"
+    print "Source trezor_pb2.py not found. Make sure python-protobuf is installed and run build_pb.sh to generate it."
     import sys
     sys.exit()
diff --git a/trezorlib/trezor_pb2.py b/trezorlib/trezor_pb2.py
index 3bb15fc7c..50d269118 100644
--- a/trezorlib/trezor_pb2.py
+++ b/trezorlib/trezor_pb2.py
@@ -15,7 +15,7 @@ import google.protobuf.descriptor_pb2
 DESCRIPTOR = _descriptor.FileDescriptor(
   name='trezor.proto',
   package='',
-  serialized_pb='\n\x0ctrezor.proto\x1a google/protobuf/descriptor.proto\"\x87\x01\n\x08XprvType\x12\x0f\n\x07version\x18\x01 \x02(\r\x12\r\n\x05\x64\x65pth\x18\x02 \x02(\r\x12\x13\n\x0b\x66ingerprint\x18\x03 \x02(\r\x12\x11\n\tchild_num\x18\x04 \x02(\r\x12\x18\n\nchain_code\x18\x05 \x02(\x0c\x42\x04\x88\xb5\x18\x01\x12\x19\n\x0bprivate_key\x18\x06 \x02(\x0c\x42\x04\x88\xb5\x18\x01\"\x86\x01\n\x08XpubType\x12\x0f\n\x07version\x18\x01 \x02(\r\x12\r\n\x05\x64\x65pth\x18\x02 \x02(\r\x12\x13\n\x0b\x66ingerprint\x18\x03 \x02(\r\x12\x11\n\tchild_num\x18\x04 \x02(\r\x12\x18\n\nchain_code\x18\x05 \x02(\x0c\x42\x04\x88\xb5\x18\x01\x12\x18\n\npublic_key\x18\x06 \x02(\x0c\x42\x04\x88\xb5\x18\x01\"]\n\x08\x43oinType\x12\x11\n\tcoin_name\x18\x01 \x01(\x0c\x12\x15\n\rcoin_shortcut\x18\x02 \x01(\x0c\x12\x14\n\x0c\x61\x64\x64ress_type\x18\x03 \x01(\r\x12\x11\n\tmaxfee_kb\x18\x04 \x01(\x04\"H\n\x0cSettingsType\x12\x10\n\x08language\x18\x01 \x01(\x0c\x12\x17\n\x04\x63oin\x18\x02 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\n\x16MessageType_LoadDevice\x10\r\x1a\x04\x90\xb5\x18\x01\x12!\n\x17MessageType_ResetDevice\x10\x0e\x1a\x04\x90\xb5\x18\x01\x12\x1c\n\x12MessageType_SignTx\x10\x0f\x1a\x04\x90\xb5\x18\x01\x12\"\n\x18MessageType_SimpleSignTx\x10\x10\x1a\x04\x90\xb5\x18\x01\x12\x1e\n\x14MessageType_Features\x10\x11\x1a\x04\x98\xb5\x18\x01\x12&\n\x1cMessageType_PinMatrixRequest\x10\x12\x1a\x04\x98\xb5\x18\x01\x12\"\n\x18MessageType_PinMatrixAck\x10\x13\x1a\x04\x90\xb5\x18\x01\x12%\n\x1bMessageType_PinMatrixCancel\x10\x14\x1a\x04\x90\xb5\x18\x01\x12\x1f\n\x15MessageType_TxRequest\x10\x15\x1a\x04\x98\xb5\x18\x01\x12\x1d\n\x13MessageType_TxInput\x10\x17\x1a\x04\x90\xb5\x18\x01\x12\x1e\n\x14MessageType_TxOutput\x10\x18\x1a\x04\x90\xb5\x18\x01\x12#\n\x19MessageType_ApplySettings\x10\x19\x1a\x04\x90\xb5\x18\x01\x12#\n\x19MessageType_ButtonRequest\x10\x1a\x1a\x04\x98\xb5\x18\x01\x12\x1f\n\x15MessageType_ButtonAck\x10\x1b\x1a\x04\x90\xb5\x18\x01\x12\"\n\x18MessageType_ButtonCancel\x10\x1c\x1a\x04\x90\xb5\x18\x01\x12 \n\x16MessageType_GetAddress\x10\x1d\x1a\x04\x90\xb5\x18\x01\x12\x1d\n\x13MessageType_Address\x10\x1e\x1a\x04\x98\xb5\x18\x01\x12\x1c\n\x18MessageType_SettingsType\x10\x1f\x12\x1a\n\x16MessageType_HDNodeType\x10 \x12\x18\n\x14MessageType_CoinType\x10!\x12$\n\x1aMessageType_EntropyRequest\x10#\x1a\x04\x98\xb5\x18\x01\x12 \n\x16MessageType_EntropyAck\x10$\x1a\x04\x90\xb5\x18\x01\x12\x1f\n\x1bMessageType_TransactionType\x10%\x12\'\n\x1dMessageType_DebugLinkDecision\x10\x64\x1a\x04\xa0\xb5\x18\x01\x12\'\n\x1dMessageType_DebugLinkGetState\x10\x65\x1a\x04\xa0\xb5\x18\x01\x12$\n\x1aMessageType_DebugLinkState\x10\x66\x1a\x04\xa8\xb5\x18\x01\x12#\n\x19MessageType_DebugLinkStop\x10g\x1a\x04\xa0\xb5\x18\x01*\xe4\x01\n\x0b\x46\x61ilureType\x12\x1d\n\x19\x46\x61ilure_UnexpectedMessage\x10\x01\x12\x1a\n\x16\x46\x61ilure_ButtonExpected\x10\x02\x12\x17\n\x13\x46\x61ilure_SyntaxError\x10\x03\x12\x1b\n\x17\x46\x61ilure_ActionCancelled\x10\x04\x12\x17\n\x13\x46\x61ilure_PinExpected\x10\x05\x12\x18\n\x14\x46\x61ilure_PinCancelled\x10\x06\x12\x16\n\x12\x46\x61ilure_PinInvalid\x10\x07\x12\x19\n\x15\x46\x61ilure_FirmwareError\x10\x63*3\n\nScriptType\x12\x10\n\x0cPAYTOADDRESS\x10\x00\x12\x13\n\x0fPAYTOSCRIPTHASH\x10\x01*(\n\x0bRequestType\x12\x0b\n\x07TXINPUT\x10\x00\x12\x0c\n\x08TXOUTPUT\x10\x01:/\n\x06\x62inary\x12\x1d.google.protobuf.FieldOptions\x18\xd1\x86\x03 \x01(\x08:4\n\x07wire_in\x12!.google.protobuf.EnumValueOptions\x18\xd2\x86\x03 \x01(\x08:5\n\x08wire_out\x12!.google.protobuf.EnumValueOptions\x18\xd3\x86\x03 \x01(\x08::\n\rwire_debug_in\x12!.google.protobuf.EnumValueOptions\x18\xd4\x86\x03 \x01(\x08:;\n\x0ewire_debug_out\x12!.google.protobuf.EnumValueOptions\x18\xd5\x86\x03 \x01(\x08')
 
 _MESSAGETYPE = _descriptor.EnumDescriptor(
   name='MessageType',
@@ -64,11 +64,11 @@ _MESSAGETYPE = _descriptor.EnumDescriptor(
       options=_descriptor._ParseOptions(descriptor_pb2.EnumValueOptions(), '\230\265\030\001'),
       type=None),
     _descriptor.EnumValueDescriptor(
-      name='MessageType_GetMasterPublicKey', index=10, number=11,
+      name='MessageType_GetPublicKey', index=10, number=11,
       options=_descriptor._ParseOptions(descriptor_pb2.EnumValueOptions(), '\220\265\030\001'),
       type=None),
     _descriptor.EnumValueDescriptor(
-      name='MessageType_MasterPublicKey', index=11, number=12,
+      name='MessageType_PublicKey', index=11, number=12,
       options=_descriptor._ParseOptions(descriptor_pb2.EnumValueOptions(), '\230\265\030\001'),
       type=None),
     _descriptor.EnumValueDescriptor(
@@ -144,7 +144,7 @@ _MESSAGETYPE = _descriptor.EnumDescriptor(
       options=None,
       type=None),
     _descriptor.EnumValueDescriptor(
-      name='MessageType_XprvType', index=30, number=32,
+      name='MessageType_HDNodeType', index=30, number=32,
       options=None,
       type=None),
     _descriptor.EnumValueDescriptor(
@@ -152,17 +152,17 @@ _MESSAGETYPE = _descriptor.EnumDescriptor(
       options=None,
       type=None),
     _descriptor.EnumValueDescriptor(
-      name='MessageType_XpubType', index=32, number=34,
-      options=None,
-      type=None),
-    _descriptor.EnumValueDescriptor(
-      name='MessageType_EntropyRequest', index=33, number=35,
+      name='MessageType_EntropyRequest', index=32, number=35,
       options=_descriptor._ParseOptions(descriptor_pb2.EnumValueOptions(), '\230\265\030\001'),
       type=None),
     _descriptor.EnumValueDescriptor(
-      name='MessageType_EntropyAck', index=34, number=36,
+      name='MessageType_EntropyAck', index=33, number=36,
       options=_descriptor._ParseOptions(descriptor_pb2.EnumValueOptions(), '\220\265\030\001'),
       type=None),
+    _descriptor.EnumValueDescriptor(
+      name='MessageType_TransactionType', index=34, number=37,
+      options=None,
+      type=None),
     _descriptor.EnumValueDescriptor(
       name='MessageType_DebugLinkDecision', index=35, number=100,
       options=_descriptor._ParseOptions(descriptor_pb2.EnumValueOptions(), '\240\265\030\001'),
@@ -182,8 +182,8 @@ _MESSAGETYPE = _descriptor.EnumDescriptor(
   ],
   containing_type=None,
   options=None,
-  serialized_start=2266,
-  serialized_end=3614,
+  serialized_start=2346,
+  serialized_end=3691,
 )
 
 MessageType = enum_type_wrapper.EnumTypeWrapper(_MESSAGETYPE)
@@ -228,8 +228,8 @@ _FAILURETYPE = _descriptor.EnumDescriptor(
   ],
   containing_type=None,
   options=None,
-  serialized_start=3617,
-  serialized_end=3845,
+  serialized_start=3694,
+  serialized_end=3922,
 )
 
 FailureType = enum_type_wrapper.EnumTypeWrapper(_FAILURETYPE)
@@ -250,8 +250,8 @@ _SCRIPTTYPE = _descriptor.EnumDescriptor(
   ],
   containing_type=None,
   options=None,
-  serialized_start=3847,
-  serialized_end=3898,
+  serialized_start=3924,
+  serialized_end=3975,
 )
 
 ScriptType = enum_type_wrapper.EnumTypeWrapper(_SCRIPTTYPE)
@@ -272,8 +272,8 @@ _REQUESTTYPE = _descriptor.EnumDescriptor(
   ],
   containing_type=None,
   options=None,
-  serialized_start=3900,
-  serialized_end=3940,
+  serialized_start=3977,
+  serialized_end=4017,
 )
 
 RequestType = enum_type_wrapper.EnumTypeWrapper(_REQUESTTYPE)
@@ -287,8 +287,8 @@ MessageType_FirmwareErase = 6
 MessageType_FirmwareUpload = 7
 MessageType_GetEntropy = 9
 MessageType_Entropy = 10
-MessageType_GetMasterPublicKey = 11
-MessageType_MasterPublicKey = 12
+MessageType_GetPublicKey = 11
+MessageType_PublicKey = 12
 MessageType_LoadDevice = 13
 MessageType_ResetDevice = 14
 MessageType_SignTx = 15
@@ -307,11 +307,11 @@ MessageType_ButtonCancel = 28
 MessageType_GetAddress = 29
 MessageType_Address = 30
 MessageType_SettingsType = 31
-MessageType_XprvType = 32
+MessageType_HDNodeType = 32
 MessageType_CoinType = 33
-MessageType_XpubType = 34
 MessageType_EntropyRequest = 35
 MessageType_EntropyAck = 36
+MessageType_TransactionType = 37
 MessageType_DebugLinkDecision = 100
 MessageType_DebugLinkGetState = 101
 MessageType_DebugLinkState = 102
@@ -371,51 +371,58 @@ wire_debug_out = _descriptor.FieldDescriptor(
   options=None)
 
 
-_XPRVTYPE = _descriptor.Descriptor(
-  name='XprvType',
-  full_name='XprvType',
+_HDNODETYPE = _descriptor.Descriptor(
+  name='HDNodeType',
+  full_name='HDNodeType',
   filename=None,
   file=DESCRIPTOR,
   containing_type=None,
   fields=[
     _descriptor.FieldDescriptor(
-      name='version', full_name='XprvType.version', index=0,
+      name='version', full_name='HDNodeType.version', 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='depth', full_name='XprvType.depth', index=1,
+      name='depth', full_name='HDNodeType.depth', index=1,
       number=2, 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='fingerprint', full_name='XprvType.fingerprint', index=2,
+      name='fingerprint', full_name='HDNodeType.fingerprint', index=2,
       number=3, 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='child_num', full_name='XprvType.child_num', index=3,
+      name='child_num', full_name='HDNodeType.child_num', index=3,
       number=4, 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='chain_code', full_name='XprvType.chain_code', index=4,
+      name='chain_code', full_name='HDNodeType.chain_code', index=4,
       number=5, 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=_descriptor._ParseOptions(descriptor_pb2.FieldOptions(), '\210\265\030\001')),
     _descriptor.FieldDescriptor(
-      name='private_key', full_name='XprvType.private_key', index=5,
-      number=6, type=12, cpp_type=9, label=2,
+      name='private_key', full_name='HDNodeType.private_key', 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=_descriptor._ParseOptions(descriptor_pb2.FieldOptions(), '\210\265\030\001')),
+    _descriptor.FieldDescriptor(
+      name='public_key', full_name='HDNodeType.public_key', index=6,
+      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,
@@ -430,70 +437,7 @@ _XPRVTYPE = _descriptor.Descriptor(
   is_extendable=False,
   extension_ranges=[],
   serialized_start=51,
-  serialized_end=186,
-)
-
-
-_XPUBTYPE = _descriptor.Descriptor(
-  name='XpubType',
-  full_name='XpubType',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-    _descriptor.FieldDescriptor(
-      name='version', full_name='XpubType.version', 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='depth', full_name='XpubType.depth', index=1,
-      number=2, 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='fingerprint', full_name='XpubType.fingerprint', index=2,
-      number=3, 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='child_num', full_name='XpubType.child_num', index=3,
-      number=4, 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='chain_code', full_name='XpubType.chain_code', index=4,
-      number=5, 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=_descriptor._ParseOptions(descriptor_pb2.FieldOptions(), '\210\265\030\001')),
-    _descriptor.FieldDescriptor(
-      name='public_key', full_name='XpubType.public_key', index=5,
-      number=6, 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=_descriptor._ParseOptions(descriptor_pb2.FieldOptions(), '\210\265\030\001')),
-  ],
-  extensions=[
-  ],
-  nested_types=[],
-  enum_types=[
-  ],
-  options=None,
-  is_extendable=False,
-  extension_ranges=[],
-  serialized_start=189,
-  serialized_end=323,
+  serialized_end=214,
 )
 
 
@@ -541,8 +485,8 @@ _COINTYPE = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=325,
-  serialized_end=418,
+  serialized_start=216,
+  serialized_end=309,
 )
 
 
@@ -583,8 +527,8 @@ _SETTINGSTYPE = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=420,
-  serialized_end=492,
+  serialized_start=311,
+  serialized_end=383,
 )
 
 
@@ -604,8 +548,8 @@ _INITIALIZE = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=494,
-  serialized_end=506,
+  serialized_start=385,
+  serialized_end=397,
 )
 
 
@@ -688,8 +632,8 @@ _FEATURES = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=509,
-  serialized_end=736,
+  serialized_start=400,
+  serialized_end=627,
 )
 
 
@@ -730,8 +674,8 @@ _APPLYSETTINGS = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=738,
-  serialized_end=809,
+  serialized_start=629,
+  serialized_end=700,
 )
 
 
@@ -758,8 +702,8 @@ _CHANGEPIN = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=811,
-  serialized_end=838,
+  serialized_start=702,
+  serialized_end=729,
 )
 
 
@@ -786,8 +730,8 @@ _PING = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=840,
-  serialized_end=863,
+  serialized_start=731,
+  serialized_end=754,
 )
 
 
@@ -814,8 +758,8 @@ _SUCCESS = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=865,
-  serialized_end=891,
+  serialized_start=756,
+  serialized_end=782,
 )
 
 
@@ -849,8 +793,8 @@ _FAILURE = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=893,
-  serialized_end=947,
+  serialized_start=784,
+  serialized_end=838,
 )
 
 
@@ -870,8 +814,8 @@ _BUTTONREQUEST = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=949,
-  serialized_end=964,
+  serialized_start=840,
+  serialized_end=855,
 )
 
 
@@ -891,8 +835,8 @@ _BUTTONACK = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=966,
-  serialized_end=977,
+  serialized_start=857,
+  serialized_end=868,
 )
 
 
@@ -912,8 +856,8 @@ _BUTTONCANCEL = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=979,
-  serialized_end=993,
+  serialized_start=870,
+  serialized_end=884,
 )
 
 
@@ -940,8 +884,8 @@ _PINMATRIXREQUEST = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=995,
-  serialized_end=1030,
+  serialized_start=886,
+  serialized_end=921,
 )
 
 
@@ -968,8 +912,8 @@ _PINMATRIXACK = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=1032,
-  serialized_end=1059,
+  serialized_start=923,
+  serialized_end=950,
 )
 
 
@@ -989,8 +933,8 @@ _PINMATRIXCANCEL = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=1061,
-  serialized_end=1078,
+  serialized_start=952,
+  serialized_end=969,
 )
 
 
@@ -1017,8 +961,8 @@ _GETENTROPY = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=1080,
-  serialized_end=1106,
+  serialized_start=971,
+  serialized_end=997,
 )
 
 
@@ -1045,18 +989,25 @@ _ENTROPY = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=1108,
-  serialized_end=1140,
+  serialized_start=999,
+  serialized_end=1031,
 )
 
 
-_GETMASTERPUBLICKEY = _descriptor.Descriptor(
-  name='GetMasterPublicKey',
-  full_name='GetMasterPublicKey',
+_GETPUBLICKEY = _descriptor.Descriptor(
+  name='GetPublicKey',
+  full_name='GetPublicKey',
   filename=None,
   file=DESCRIPTOR,
   containing_type=None,
   fields=[
+    _descriptor.FieldDescriptor(
+      name='address_n', full_name='GetPublicKey.address_n', index=0,
+      number=1, 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),
   ],
   extensions=[
   ],
@@ -1066,20 +1017,20 @@ _GETMASTERPUBLICKEY = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=1142,
-  serialized_end=1162,
+  serialized_start=1033,
+  serialized_end=1066,
 )
 
 
-_MASTERPUBLICKEY = _descriptor.Descriptor(
-  name='MasterPublicKey',
-  full_name='MasterPublicKey',
+_PUBLICKEY = _descriptor.Descriptor(
+  name='PublicKey',
+  full_name='PublicKey',
   filename=None,
   file=DESCRIPTOR,
   containing_type=None,
   fields=[
     _descriptor.FieldDescriptor(
-      name='mpk', full_name='MasterPublicKey.mpk', index=0,
+      name='mpk', full_name='PublicKey.mpk', index=0,
       number=1, type=11, cpp_type=10, label=2,
       has_default_value=False, default_value=None,
       message_type=None, enum_type=None, containing_type=None,
@@ -1094,8 +1045,8 @@ _MASTERPUBLICKEY = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=1164,
-  serialized_end=1205,
+  serialized_start=1068,
+  serialized_end=1105,
 )
 
 
@@ -1122,8 +1073,8 @@ _GETADDRESS = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=1207,
-  serialized_end=1238,
+  serialized_start=1107,
+  serialized_end=1138,
 )
 
 
@@ -1150,8 +1101,8 @@ _ADDRESS = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=1240,
-  serialized_end=1266,
+  serialized_start=1140,
+  serialized_end=1166,
 )
 
 
@@ -1171,8 +1122,8 @@ _WIPEDEVICE = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=1268,
-  serialized_end=1280,
+  serialized_start=1168,
+  serialized_end=1180,
 )
 
 
@@ -1191,7 +1142,7 @@ _LOADDEVICE = _descriptor.Descriptor(
       is_extension=False, extension_scope=None,
       options=None),
     _descriptor.FieldDescriptor(
-      name='xprv', full_name='LoadDevice.xprv', index=1,
+      name='node', full_name='LoadDevice.node', 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,
@@ -1213,8 +1164,8 @@ _LOADDEVICE = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=1282,
-  serialized_end=1346,
+  serialized_start=1182,
+  serialized_end=1248,
 )
 
 
@@ -1241,8 +1192,8 @@ _RESETDEVICE = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=1348,
-  serialized_end=1385,
+  serialized_start=1250,
+  serialized_end=1287,
 )
 
 
@@ -1262,8 +1213,8 @@ _ENTROPYREQUEST = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=1387,
-  serialized_end=1403,
+  serialized_start=1289,
+  serialized_end=1305,
 )
 
 
@@ -1290,8 +1241,8 @@ _ENTROPYACK = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=1405,
-  serialized_end=1440,
+  serialized_start=1307,
+  serialized_end=1342,
 )
 
 
@@ -1325,8 +1276,8 @@ _SIGNTX = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=1442,
-  serialized_end=1495,
+  serialized_start=1344,
+  serialized_end=1397,
 )
 
 
@@ -1360,8 +1311,8 @@ _SIMPLESIGNTX = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=1497,
-  serialized_end=1565,
+  serialized_start=1399,
+  serialized_end=1467,
 )
 
 
@@ -1416,8 +1367,8 @@ _TXREQUEST = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=1568,
-  serialized_end=1714,
+  serialized_start=1470,
+  serialized_end=1616,
 )
 
 
@@ -1429,47 +1380,40 @@ _TXINPUT = _descriptor.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,
+      name='address_n', full_name='TxInput.address_n', index=0,
+      number=1, 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,
+      name='prev_hash', full_name='TxInput.prev_hash', index=1,
+      number=2, 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=_descriptor._ParseOptions(descriptor_pb2.FieldOptions(), '\210\265\030\001')),
     _descriptor.FieldDescriptor(
-      name='prev_index', full_name='TxInput.prev_index', index=4,
-      number=5, type=13, cpp_type=3, label=2,
+      name='prev_index', full_name='TxInput.prev_index', index=2,
+      number=3, 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,
+      name='script_sig', full_name='TxInput.script_sig', index=3,
+      number=4, 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=_descriptor._ParseOptions(descriptor_pb2.FieldOptions(), '\210\265\030\001')),
+    _descriptor.FieldDescriptor(
+      name='sequence', full_name='TxInput.sequence', index=4,
+      number=5, type=13, cpp_type=3, label=1,
+      has_default_value=True, default_value=4294967295,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
   ],
   extensions=[
   ],
@@ -1479,8 +1423,8 @@ _TXINPUT = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=1717,
-  serialized_end=1847,
+  serialized_start=1619,
+  serialized_end=1748,
 )
 
 
@@ -1492,43 +1436,36 @@ _TXOUTPUT = _descriptor.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=12, cpp_type=9, label=2,
+      name='address', full_name='TxOutput.address', 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='address_n', full_name='TxOutput.address_n', index=2,
-      number=3, type=13, cpp_type=3, label=3,
+      name='address_n', full_name='TxOutput.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='TxOutput.amount', index=3,
-      number=4, type=4, cpp_type=4, label=2,
+      name='amount', full_name='TxOutput.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='script_type', full_name='TxOutput.script_type', index=4,
-      number=5, type=14, cpp_type=8, label=2,
+      name='script_type', full_name='TxOutput.script_type', index=3,
+      number=4, 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,
+      name='script_args', full_name='TxOutput.script_args', index=4,
+      number=5, 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,
@@ -1542,8 +1479,91 @@ _TXOUTPUT = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=1850,
-  serialized_end=1988,
+  serialized_start=1750,
+  serialized_end=1873,
+)
+
+
+_TRANSACTIONTYPE_TXOUTPUTBIN = _descriptor.Descriptor(
+  name='TxOutputBin',
+  full_name='TransactionType.TxOutputBin',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='amount', full_name='TransactionType.TxOutputBin.amount', 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),
+    _descriptor.FieldDescriptor(
+      name='script_pubkey', full_name='TransactionType.TxOutputBin.script_pubkey', index=1,
+      number=2, 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=_descriptor._ParseOptions(descriptor_pb2.FieldOptions(), '\210\265\030\001')),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=2010,
+  serialized_end=2068,
+)
+
+_TRANSACTIONTYPE = _descriptor.Descriptor(
+  name='TransactionType',
+  full_name='TransactionType',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='version', full_name='TransactionType.version', index=0,
+      number=1, type=13, cpp_type=3, label=1,
+      has_default_value=True, default_value=1,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='inputs', full_name='TransactionType.inputs', index=1,
+      number=2, type=11, cpp_type=10, 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='outputs', full_name='TransactionType.outputs', index=2,
+      number=3, type=11, cpp_type=10, 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='lock_time', full_name='TransactionType.lock_time', index=3,
+      number=4, type=13, cpp_type=3, label=1,
+      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=[_TRANSACTIONTYPE_TXOUTPUTBIN, ],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=1876,
+  serialized_end=2068,
 )
 
 
@@ -1563,8 +1583,8 @@ _FIRMWAREERASE = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=1990,
-  serialized_end=2005,
+  serialized_start=2070,
+  serialized_end=2085,
 )
 
 
@@ -1591,8 +1611,8 @@ _FIRMWAREUPLOAD = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=2007,
-  serialized_end=2046,
+  serialized_start=2087,
+  serialized_end=2126,
 )
 
 
@@ -1619,8 +1639,8 @@ _DEBUGLINKDECISION = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=2048,
-  serialized_end=2083,
+  serialized_start=2128,
+  serialized_end=2163,
 )
 
 
@@ -1668,8 +1688,8 @@ _DEBUGLINKGETSTATE = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=2085,
-  serialized_end=2163,
+  serialized_start=2165,
+  serialized_end=2243,
 )
 
 
@@ -1717,8 +1737,8 @@ _DEBUGLINKSTATE = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=2165,
-  serialized_end=2246,
+  serialized_start=2245,
+  serialized_end=2326,
 )
 
 
@@ -1738,21 +1758,23 @@ _DEBUGLINKSTOP = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=2248,
-  serialized_end=2263,
+  serialized_start=2328,
+  serialized_end=2343,
 )
 
 _SETTINGSTYPE.fields_by_name['coin'].message_type = _COINTYPE
 _FEATURES.fields_by_name['settings'].message_type = _SETTINGSTYPE
 _FAILURE.fields_by_name['code'].enum_type = _FAILURETYPE
-_MASTERPUBLICKEY.fields_by_name['mpk'].message_type = _XPUBTYPE
-_LOADDEVICE.fields_by_name['xprv'].message_type = _XPRVTYPE
+_PUBLICKEY.fields_by_name['mpk'].message_type = _HDNODETYPE
+_LOADDEVICE.fields_by_name['node'].message_type = _HDNODETYPE
 _SIMPLESIGNTX.fields_by_name['inputs'].message_type = _TXINPUT
 _SIMPLESIGNTX.fields_by_name['outputs'].message_type = _TXOUTPUT
 _TXREQUEST.fields_by_name['request_type'].enum_type = _REQUESTTYPE
 _TXOUTPUT.fields_by_name['script_type'].enum_type = _SCRIPTTYPE
-DESCRIPTOR.message_types_by_name['XprvType'] = _XPRVTYPE
-DESCRIPTOR.message_types_by_name['XpubType'] = _XPUBTYPE
+_TRANSACTIONTYPE_TXOUTPUTBIN.containing_type = _TRANSACTIONTYPE;
+_TRANSACTIONTYPE.fields_by_name['inputs'].message_type = _TXINPUT
+_TRANSACTIONTYPE.fields_by_name['outputs'].message_type = _TRANSACTIONTYPE_TXOUTPUTBIN
+DESCRIPTOR.message_types_by_name['HDNodeType'] = _HDNODETYPE
 DESCRIPTOR.message_types_by_name['CoinType'] = _COINTYPE
 DESCRIPTOR.message_types_by_name['SettingsType'] = _SETTINGSTYPE
 DESCRIPTOR.message_types_by_name['Initialize'] = _INITIALIZE
@@ -1770,8 +1792,8 @@ DESCRIPTOR.message_types_by_name['PinMatrixAck'] = _PINMATRIXACK
 DESCRIPTOR.message_types_by_name['PinMatrixCancel'] = _PINMATRIXCANCEL
 DESCRIPTOR.message_types_by_name['GetEntropy'] = _GETENTROPY
 DESCRIPTOR.message_types_by_name['Entropy'] = _ENTROPY
-DESCRIPTOR.message_types_by_name['GetMasterPublicKey'] = _GETMASTERPUBLICKEY
-DESCRIPTOR.message_types_by_name['MasterPublicKey'] = _MASTERPUBLICKEY
+DESCRIPTOR.message_types_by_name['GetPublicKey'] = _GETPUBLICKEY
+DESCRIPTOR.message_types_by_name['PublicKey'] = _PUBLICKEY
 DESCRIPTOR.message_types_by_name['GetAddress'] = _GETADDRESS
 DESCRIPTOR.message_types_by_name['Address'] = _ADDRESS
 DESCRIPTOR.message_types_by_name['WipeDevice'] = _WIPEDEVICE
@@ -1784,6 +1806,7 @@ DESCRIPTOR.message_types_by_name['SimpleSignTx'] = _SIMPLESIGNTX
 DESCRIPTOR.message_types_by_name['TxRequest'] = _TXREQUEST
 DESCRIPTOR.message_types_by_name['TxInput'] = _TXINPUT
 DESCRIPTOR.message_types_by_name['TxOutput'] = _TXOUTPUT
+DESCRIPTOR.message_types_by_name['TransactionType'] = _TRANSACTIONTYPE
 DESCRIPTOR.message_types_by_name['FirmwareErase'] = _FIRMWAREERASE
 DESCRIPTOR.message_types_by_name['FirmwareUpload'] = _FIRMWAREUPLOAD
 DESCRIPTOR.message_types_by_name['DebugLinkDecision'] = _DEBUGLINKDECISION
@@ -1791,17 +1814,11 @@ DESCRIPTOR.message_types_by_name['DebugLinkGetState'] = _DEBUGLINKGETSTATE
 DESCRIPTOR.message_types_by_name['DebugLinkState'] = _DEBUGLINKSTATE
 DESCRIPTOR.message_types_by_name['DebugLinkStop'] = _DEBUGLINKSTOP
 
-class XprvType(_message.Message):
+class HDNodeType(_message.Message):
   __metaclass__ = _reflection.GeneratedProtocolMessageType
-  DESCRIPTOR = _XPRVTYPE
+  DESCRIPTOR = _HDNODETYPE
 
-  # @@protoc_insertion_point(class_scope:XprvType)
-
-class XpubType(_message.Message):
-  __metaclass__ = _reflection.GeneratedProtocolMessageType
-  DESCRIPTOR = _XPUBTYPE
-
-  # @@protoc_insertion_point(class_scope:XpubType)
+  # @@protoc_insertion_point(class_scope:HDNodeType)
 
 class CoinType(_message.Message):
   __metaclass__ = _reflection.GeneratedProtocolMessageType
@@ -1905,17 +1922,17 @@ class Entropy(_message.Message):
 
   # @@protoc_insertion_point(class_scope:Entropy)
 
-class GetMasterPublicKey(_message.Message):
+class GetPublicKey(_message.Message):
   __metaclass__ = _reflection.GeneratedProtocolMessageType
-  DESCRIPTOR = _GETMASTERPUBLICKEY
+  DESCRIPTOR = _GETPUBLICKEY
 
-  # @@protoc_insertion_point(class_scope:GetMasterPublicKey)
+  # @@protoc_insertion_point(class_scope:GetPublicKey)
 
-class MasterPublicKey(_message.Message):
+class PublicKey(_message.Message):
   __metaclass__ = _reflection.GeneratedProtocolMessageType
-  DESCRIPTOR = _MASTERPUBLICKEY
+  DESCRIPTOR = _PUBLICKEY
 
-  # @@protoc_insertion_point(class_scope:MasterPublicKey)
+  # @@protoc_insertion_point(class_scope:PublicKey)
 
 class GetAddress(_message.Message):
   __metaclass__ = _reflection.GeneratedProtocolMessageType
@@ -1989,6 +2006,18 @@ class TxOutput(_message.Message):
 
   # @@protoc_insertion_point(class_scope:TxOutput)
 
+class TransactionType(_message.Message):
+  __metaclass__ = _reflection.GeneratedProtocolMessageType
+
+  class TxOutputBin(_message.Message):
+    __metaclass__ = _reflection.GeneratedProtocolMessageType
+    DESCRIPTOR = _TRANSACTIONTYPE_TXOUTPUTBIN
+
+    # @@protoc_insertion_point(class_scope:TransactionType.TxOutputBin)
+  DESCRIPTOR = _TRANSACTIONTYPE
+
+  # @@protoc_insertion_point(class_scope:TransactionType)
+
 class FirmwareErase(_message.Message):
   __metaclass__ = _reflection.GeneratedProtocolMessageType
   DESCRIPTOR = _FIRMWAREERASE
@@ -2051,10 +2080,10 @@ _MESSAGETYPE.values_by_name["MessageType_GetEntropy"].has_options = True
 _MESSAGETYPE.values_by_name["MessageType_GetEntropy"]._options = _descriptor._ParseOptions(descriptor_pb2.EnumValueOptions(), '\220\265\030\001')
 _MESSAGETYPE.values_by_name["MessageType_Entropy"].has_options = True
 _MESSAGETYPE.values_by_name["MessageType_Entropy"]._options = _descriptor._ParseOptions(descriptor_pb2.EnumValueOptions(), '\230\265\030\001')
-_MESSAGETYPE.values_by_name["MessageType_GetMasterPublicKey"].has_options = True
-_MESSAGETYPE.values_by_name["MessageType_GetMasterPublicKey"]._options = _descriptor._ParseOptions(descriptor_pb2.EnumValueOptions(), '\220\265\030\001')
-_MESSAGETYPE.values_by_name["MessageType_MasterPublicKey"].has_options = True
-_MESSAGETYPE.values_by_name["MessageType_MasterPublicKey"]._options = _descriptor._ParseOptions(descriptor_pb2.EnumValueOptions(), '\230\265\030\001')
+_MESSAGETYPE.values_by_name["MessageType_GetPublicKey"].has_options = True
+_MESSAGETYPE.values_by_name["MessageType_GetPublicKey"]._options = _descriptor._ParseOptions(descriptor_pb2.EnumValueOptions(), '\220\265\030\001')
+_MESSAGETYPE.values_by_name["MessageType_PublicKey"].has_options = True
+_MESSAGETYPE.values_by_name["MessageType_PublicKey"]._options = _descriptor._ParseOptions(descriptor_pb2.EnumValueOptions(), '\230\265\030\001')
 _MESSAGETYPE.values_by_name["MessageType_LoadDevice"].has_options = True
 _MESSAGETYPE.values_by_name["MessageType_LoadDevice"]._options = _descriptor._ParseOptions(descriptor_pb2.EnumValueOptions(), '\220\265\030\001')
 _MESSAGETYPE.values_by_name["MessageType_ResetDevice"].has_options = True
@@ -2101,14 +2130,12 @@ _MESSAGETYPE.values_by_name["MessageType_DebugLinkState"].has_options = True
 _MESSAGETYPE.values_by_name["MessageType_DebugLinkState"]._options = _descriptor._ParseOptions(descriptor_pb2.EnumValueOptions(), '\250\265\030\001')
 _MESSAGETYPE.values_by_name["MessageType_DebugLinkStop"].has_options = True
 _MESSAGETYPE.values_by_name["MessageType_DebugLinkStop"]._options = _descriptor._ParseOptions(descriptor_pb2.EnumValueOptions(), '\240\265\030\001')
-_XPRVTYPE.fields_by_name['chain_code'].has_options = True
-_XPRVTYPE.fields_by_name['chain_code']._options = _descriptor._ParseOptions(descriptor_pb2.FieldOptions(), '\210\265\030\001')
-_XPRVTYPE.fields_by_name['private_key'].has_options = True
-_XPRVTYPE.fields_by_name['private_key']._options = _descriptor._ParseOptions(descriptor_pb2.FieldOptions(), '\210\265\030\001')
-_XPUBTYPE.fields_by_name['chain_code'].has_options = True
-_XPUBTYPE.fields_by_name['chain_code']._options = _descriptor._ParseOptions(descriptor_pb2.FieldOptions(), '\210\265\030\001')
-_XPUBTYPE.fields_by_name['public_key'].has_options = True
-_XPUBTYPE.fields_by_name['public_key']._options = _descriptor._ParseOptions(descriptor_pb2.FieldOptions(), '\210\265\030\001')
+_HDNODETYPE.fields_by_name['chain_code'].has_options = True
+_HDNODETYPE.fields_by_name['chain_code']._options = _descriptor._ParseOptions(descriptor_pb2.FieldOptions(), '\210\265\030\001')
+_HDNODETYPE.fields_by_name['private_key'].has_options = True
+_HDNODETYPE.fields_by_name['private_key']._options = _descriptor._ParseOptions(descriptor_pb2.FieldOptions(), '\210\265\030\001')
+_HDNODETYPE.fields_by_name['public_key'].has_options = True
+_HDNODETYPE.fields_by_name['public_key']._options = _descriptor._ParseOptions(descriptor_pb2.FieldOptions(), '\210\265\030\001')
 _FEATURES.fields_by_name['device_id'].has_options = True
 _FEATURES.fields_by_name['device_id']._options = _descriptor._ParseOptions(descriptor_pb2.FieldOptions(), '\210\265\030\001')
 _FEATURES.fields_by_name['mpk_hash'].has_options = True
@@ -2127,6 +2154,8 @@ _TXINPUT.fields_by_name['script_sig'].has_options = True
 _TXINPUT.fields_by_name['script_sig']._options = _descriptor._ParseOptions(descriptor_pb2.FieldOptions(), '\210\265\030\001')
 _TXOUTPUT.fields_by_name['script_args'].has_options = True
 _TXOUTPUT.fields_by_name['script_args']._options = _descriptor._ParseOptions(descriptor_pb2.FieldOptions(), '\210\265\030\001')
+_TRANSACTIONTYPE_TXOUTPUTBIN.fields_by_name['script_pubkey'].has_options = True
+_TRANSACTIONTYPE_TXOUTPUTBIN.fields_by_name['script_pubkey']._options = _descriptor._ParseOptions(descriptor_pb2.FieldOptions(), '\210\265\030\001')
 _FIRMWAREUPLOAD.fields_by_name['payload'].has_options = True
 _FIRMWAREUPLOAD.fields_by_name['payload']._options = _descriptor._ParseOptions(descriptor_pb2.FieldOptions(), '\210\265\030\001')
 _DEBUGLINKSTATE.fields_by_name['layout'].has_options = True