wip: shamir secret sharing

- communication works, shamir seems to work too. to be tested

messages/hww.proto

@@ -25,6 +25,7 @@ import "eth.proto";
 import "keystore.proto";
 import "mnemonic.proto";
 import "system.proto";
+import "shamir.proto";
 
 import "perform_attestation.proto";
 
@@ -67,6 +68,9 @@ message Request {
         ElectrumEncryptionKeyRequest electrum_encryption_key = 26;
         CardanoRequest cardano = 27;
         BIP85Request bip85 = 28;
+        ShowShamirRequest show_shamir = 29;
+        RestoreFromShamirRequest restore_from_shamir = 30;
+
     }
 }
 

messages/shamir.proto

@@ -0,0 +1,21 @@
+// Copyright 2019 Shift Cryptosecurity AG
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+package shiftcrypto.bitbox02;
+
+message ShowShamirRequest {
+}
+message RestoreFromShamirRequest {
+}

py/bitbox02/Makefile

@@ -15,7 +15,7 @@
 
 OUT_DIR=bitbox02/communication/generated
 
-PROTO_FILES=hww.proto common.proto backup_commands.proto bitbox02_system.proto btc.proto cardano.proto eth.proto mnemonic.proto system.proto perform_attestation.proto keystore.proto antiklepto.proto
+PROTO_FILES=hww.proto common.proto backup_commands.proto bitbox02_system.proto btc.proto cardano.proto eth.proto mnemonic.proto system.proto perform_attestation.proto keystore.proto antiklepto.proto shamir.proto
 
 TARGETS=$(addprefix ${OUT_DIR}/, $(PROTO_FILES:.proto=_pb2.py))
 

py/bitbox02/bitbox02/bitbox02/bitbox02.py

@@ -38,6 +38,7 @@
     from bitbox02.communication.generated import btc_pb2 as btc
     from bitbox02.communication.generated import cardano_pb2 as cardano
     from bitbox02.communication.generated import mnemonic_pb2 as mnemonic
+    from bitbox02.communication.generated import shamir_pb2 as shamir
     from bitbox02.communication.generated import bitbox02_system_pb2 as bitbox02_system
     from bitbox02.communication.generated import backup_commands_pb2 as backup
     from bitbox02.communication.generated import common_pb2 as common
@@ -259,6 +260,17 @@ def show_mnemonic(self) -> None:
         request.show_mnemonic.CopyFrom(mnemonic.ShowMnemonicRequest())
         self._msg_query(request, expected_response="success")
 
+    def show_shamir(self) -> None:
+        """
+        Returns True if shamir mnemonics were successfully shown and confirmed.
+        Raises a Bitbox02Exception on failure.
+        """
+        # self._require_atleast(semver.VersionInfo(9, 16, 0)) TODO
+        # pylint: disable=no-member
+        request = hww.Request()
+        request.show_shamir.CopyFrom(shamir.ShowShamirRequest())
+        self._msg_query(request, expected_response="success")
+
     def _btc_msg_query(
         self, btc_request: btc.BTCRequest, expected_response: Optional[str] = None
     ) -> btc.BTCResponse:

py/bitbox02/bitbox02/communication/generated/hww_pb2.pyi

@@ -14,6 +14,7 @@ import google.protobuf.message
 from . import keystore_pb2
 from . import mnemonic_pb2
 from . import perform_attestation_pb2
+from . import shamir_pb2
 from . import system_pb2
 import typing
 import typing_extensions
@@ -68,6 +69,8 @@ class Request(google.protobuf.message.Message):
     ELECTRUM_ENCRYPTION_KEY_FIELD_NUMBER: builtins.int
     CARDANO_FIELD_NUMBER: builtins.int
     BIP85_FIELD_NUMBER: builtins.int
+    SHOW_SHAMIR_FIELD_NUMBER: builtins.int
+    RESTORE_FROM_SHAMIR_FIELD_NUMBER: builtins.int
     @property
     def device_name(self) -> bitbox02_system_pb2.SetDeviceNameRequest:
         """removed: RandomNumberRequest random_number = 1;"""
@@ -124,6 +127,10 @@ class Request(google.protobuf.message.Message):
     def cardano(self) -> cardano_pb2.CardanoRequest: ...
     @property
     def bip85(self) -> keystore_pb2.BIP85Request: ...
+    @property
+    def show_shamir(self) -> shamir_pb2.ShowShamirRequest: ...
+    @property
+    def restore_from_shamir(self) -> shamir_pb2.RestoreFromShamirRequest: ...
     def __init__(self,
         *,
         device_name: typing.Optional[bitbox02_system_pb2.SetDeviceNameRequest] = ...,
@@ -152,10 +159,12 @@ class Request(google.protobuf.message.Message):
         electrum_encryption_key: typing.Optional[keystore_pb2.ElectrumEncryptionKeyRequest] = ...,
         cardano: typing.Optional[cardano_pb2.CardanoRequest] = ...,
         bip85: typing.Optional[keystore_pb2.BIP85Request] = ...,
+        show_shamir: typing.Optional[shamir_pb2.ShowShamirRequest] = ...,
+        restore_from_shamir: typing.Optional[shamir_pb2.RestoreFromShamirRequest] = ...,
         ) -> None: ...
-    def HasField(self, field_name: typing_extensions.Literal["bip85",b"bip85","btc",b"btc","btc_pub",b"btc_pub","btc_sign_init",b"btc_sign_init","btc_sign_input",b"btc_sign_input","btc_sign_output",b"btc_sign_output","cardano",b"cardano","check_backup",b"check_backup","check_sdcard",b"check_sdcard","create_backup",b"create_backup","device_info",b"device_info","device_language",b"device_language","device_name",b"device_name","electrum_encryption_key",b"electrum_encryption_key","eth",b"eth","fingerprint",b"fingerprint","insert_remove_sdcard",b"insert_remove_sdcard","list_backups",b"list_backups","perform_attestation",b"perform_attestation","reboot",b"reboot","request",b"request","reset",b"reset","restore_backup",b"restore_backup","restore_from_mnemonic",b"restore_from_mnemonic","set_mnemonic_passphrase_enabled",b"set_mnemonic_passphrase_enabled","set_password",b"set_password","show_mnemonic",b"show_mnemonic"]) -> builtins.bool: ...
-    def ClearField(self, field_name: typing_extensions.Literal["bip85",b"bip85","btc",b"btc","btc_pub",b"btc_pub","btc_sign_init",b"btc_sign_init","btc_sign_input",b"btc_sign_input","btc_sign_output",b"btc_sign_output","cardano",b"cardano","check_backup",b"check_backup","check_sdcard",b"check_sdcard","create_backup",b"create_backup","device_info",b"device_info","device_language",b"device_language","device_name",b"device_name","electrum_encryption_key",b"electrum_encryption_key","eth",b"eth","fingerprint",b"fingerprint","insert_remove_sdcard",b"insert_remove_sdcard","list_backups",b"list_backups","perform_attestation",b"perform_attestation","reboot",b"reboot","request",b"request","reset",b"reset","restore_backup",b"restore_backup","restore_from_mnemonic",b"restore_from_mnemonic","set_mnemonic_passphrase_enabled",b"set_mnemonic_passphrase_enabled","set_password",b"set_password","show_mnemonic",b"show_mnemonic"]) -> None: ...
-    def WhichOneof(self, oneof_group: typing_extensions.Literal["request",b"request"]) -> typing.Optional[typing_extensions.Literal["device_name","device_language","device_info","set_password","create_backup","show_mnemonic","btc_pub","btc_sign_init","btc_sign_input","btc_sign_output","insert_remove_sdcard","check_sdcard","set_mnemonic_passphrase_enabled","list_backups","restore_backup","perform_attestation","reboot","check_backup","eth","reset","restore_from_mnemonic","fingerprint","btc","electrum_encryption_key","cardano","bip85"]]: ...
+    def HasField(self, field_name: typing_extensions.Literal["bip85",b"bip85","btc",b"btc","btc_pub",b"btc_pub","btc_sign_init",b"btc_sign_init","btc_sign_input",b"btc_sign_input","btc_sign_output",b"btc_sign_output","cardano",b"cardano","check_backup",b"check_backup","check_sdcard",b"check_sdcard","create_backup",b"create_backup","device_info",b"device_info","device_language",b"device_language","device_name",b"device_name","electrum_encryption_key",b"electrum_encryption_key","eth",b"eth","fingerprint",b"fingerprint","insert_remove_sdcard",b"insert_remove_sdcard","list_backups",b"list_backups","perform_attestation",b"perform_attestation","reboot",b"reboot","request",b"request","reset",b"reset","restore_backup",b"restore_backup","restore_from_mnemonic",b"restore_from_mnemonic","restore_from_shamir",b"restore_from_shamir","set_mnemonic_passphrase_enabled",b"set_mnemonic_passphrase_enabled","set_password",b"set_password","show_mnemonic",b"show_mnemonic","show_shamir",b"show_shamir"]) -> builtins.bool: ...
+    def ClearField(self, field_name: typing_extensions.Literal["bip85",b"bip85","btc",b"btc","btc_pub",b"btc_pub","btc_sign_init",b"btc_sign_init","btc_sign_input",b"btc_sign_input","btc_sign_output",b"btc_sign_output","cardano",b"cardano","check_backup",b"check_backup","check_sdcard",b"check_sdcard","create_backup",b"create_backup","device_info",b"device_info","device_language",b"device_language","device_name",b"device_name","electrum_encryption_key",b"electrum_encryption_key","eth",b"eth","fingerprint",b"fingerprint","insert_remove_sdcard",b"insert_remove_sdcard","list_backups",b"list_backups","perform_attestation",b"perform_attestation","reboot",b"reboot","request",b"request","reset",b"reset","restore_backup",b"restore_backup","restore_from_mnemonic",b"restore_from_mnemonic","restore_from_shamir",b"restore_from_shamir","set_mnemonic_passphrase_enabled",b"set_mnemonic_passphrase_enabled","set_password",b"set_password","show_mnemonic",b"show_mnemonic","show_shamir",b"show_shamir"]) -> None: ...
+    def WhichOneof(self, oneof_group: typing_extensions.Literal["request",b"request"]) -> typing.Optional[typing_extensions.Literal["device_name","device_language","device_info","set_password","create_backup","show_mnemonic","btc_pub","btc_sign_init","btc_sign_input","btc_sign_output","insert_remove_sdcard","check_sdcard","set_mnemonic_passphrase_enabled","list_backups","restore_backup","perform_attestation","reboot","check_backup","eth","reset","restore_from_mnemonic","fingerprint","btc","electrum_encryption_key","cardano","bip85","show_shamir","restore_from_shamir"]]: ...
 global___Request = Request
 
 class Response(google.protobuf.message.Message):