diff --git a/device-protocol b/device-protocol index dd9c85dc..5fec9e69 160000 --- a/device-protocol +++ b/device-protocol @@ -1 +1 @@ -Subproject commit dd9c85dc747cf965fb0e7bf49615dc9e7568ee65 +Subproject commit 5fec9e6906a340be5eb3d795ec746769065b2db8 diff --git a/keepkeylib/debuglink.py b/keepkeylib/debuglink.py index efd308c9..34abcb87 100644 --- a/keepkeylib/debuglink.py +++ b/keepkeylib/debuglink.py @@ -91,6 +91,12 @@ def read_dice_digest(self): obj = self._call(proto.DebugLinkGetState()) return obj.dice_digest + def read_confirm_text(self): + """(title, body) of the confirmation currently or last shown, exactly + as the firmware formatted them, before the body is paged.""" + obj = self._call(proto.DebugLinkGetState()) + return (obj.confirm_title, obj.confirm_body) + def read_passphrase_protection(self): obj = self._call(proto.DebugLinkGetState()) return obj.passphrase_protection diff --git a/keepkeylib/erc7730_compiler.py b/keepkeylib/erc7730_compiler.py index 08501b09..939298d4 100644 --- a/keepkeylib/erc7730_compiler.py +++ b/keepkeylib/erc7730_compiler.py @@ -670,6 +670,11 @@ def intern_path(steps): "threshold", "message", "chainId", "chainIdPath")): raise ValueError( "unknown token amount cannot use token metadata parameters") + else: + # No token is named, so the device can only show the raw + # integer. Its verifier refuses a tokenAmount without a + # token argument, so compile the raw formatter it runs. + kind = 1 if "threshold" in params: threshold = descriptor_value(params["threshold"]) if isinstance(threshold, str) and threshold.startswith("0x"): @@ -847,6 +852,11 @@ def depth(node): return 1 + (max(depth(child) for child in node.children) if node.children else 0) max_depth = depth(root) + # The device's ABI verifier counts the root as depth 1, as depth() + # does, and refuses a node deeper than ERC7730_ABI_MAX_DEPTH (8). + if max_depth > 8: + raise ValueError( + "ERC-7730 ABI nests deeper than the device supports") for node, first, count in flat: array_length = node.array_length if node.kind == 9 else 0 payload += bytes([node.kind]) + _u16(node.size) + _u16(first) + _u16(count) + _u16(array_length or 0) @@ -859,6 +869,16 @@ def depth(node): if steps and steps[0][0] == "container": payload += bytes([2, 0]) + _u16(steps[0][1]) continue + # Device captures descend one ABI level per step and refuse + # ERC7730_ABI_MAX_DEPTH (8) or more steps. + if len(steps) >= 8: + raise ValueError( + "ERC-7730 path nests deeper than the device supports") + # The device iterates at most one array per path ("[]" step). + if sum(1 for step in steps if step[0] == 2) > 1: + raise ValueError( + "ERC-7730 path iterates more than one array; the device " + "supports one") payload += bytes([1, len(steps)]) + _u16(ABSENT) for step in steps: if step[0] == 1: @@ -947,9 +967,147 @@ def depth(node): for kind, value in sections) -def compile_calldata(descriptor, signature, chain_id, address, **kwargs): - return CalldataCompiler(descriptor, signature, chain_id, address, - **kwargs).compile() +# What the device executes: a mirror of keepkey-firmware's +# include/keepkey/firmware/erc7730_capabilities.h. The device refuses every +# program outside it at preload, before the first screen. Widen this only +# together with the firmware table. +DEVICE_CAPABILITIES = { + "display_opcodes": frozenset((1, 4, 10)), + # formatter kind -> (argument role -> permitted sources, required roles) + "formatters": {1: ({1: frozenset((1,))}, frozenset((1,)))}, + "path_sources": frozenset((1,)), + "containers": frozenset(), + "path_step_opcodes": frozenset((1,)), + "conditions": False, +} +MAX_ARRAY_ELEMENTS = 64 + + +class DeviceCannotExecute(ValueError): + """The program is valid ERC-7730 but outside the device's capabilities.""" + + +def _program_sections(program): + offset = HEADER_SIZE + sections = {} + for _ in range(program[178]): + kind = program[offset] + length = struct.unpack(">I", program[offset + 1:offset + 5])[0] + sections[kind] = program[offset + 5:offset + 5 + length] + offset += 5 + length + return sections + + +def _abi_walk(nodes, steps): + """Mirror of the firmware's preload walk; steps are (opcode, index).""" + node = 0 + for opcode, index in steps: + if node >= len(nodes): + return "path leaves the ABI" + kind, _, first, count, length = nodes[node] + if kind == 8 and opcode == 1 and count and 0 <= index < count: + node = first + index + elif kind == 9 and opcode in (1, 2): + limit = MAX_ARRAY_ELEMENTS if length == ABSENT else length + if not -limit <= index < limit: + return "path indexes beyond the array" + node = first + else: + return "path does not name an ABI member" + if node >= len(nodes) or nodes[node][0] > 7: + return "path does not end at a value" + return None + + +def device_refusal(program, capabilities=DEVICE_CAPABILITIES): + """Why the device would refuse `program` at preload, or None.""" + sections = _program_sections(program) + u16 = lambda data, at: struct.unpack(">H", data[at:at + 2])[0] + + abi = sections.get(2, b"\0\0") + nodes = [struct.unpack(">BHHHH", abi[2 + 9 * i:11 + 9 * i]) + for i in range(u16(abi, 0))] + + paths = sections.get(3, b"\0\0") + at = 2 + for _ in range(u16(paths, 0)): + source, count, index = paths[at], paths[at + 1], u16(paths, at + 2) + at += 4 + if source not in capabilities["path_sources"]: + return "path source %d is not executed" % source + if source == 2 and index not in capabilities["containers"]: + return "container %d is not executed" % index + steps = [] + for _ in range(count): + opcode = paths[at] + at += 1 + if opcode not in capabilities["path_step_opcodes"]: + return "path step opcode %d is not executed" % opcode + if opcode == 1: + steps.append((1, struct.unpack(">i", paths[at:at + 4])[0])) + at += 4 + elif opcode == 2: + steps.append((2, 0)) + else: + flags = paths[at] + at += 1 + 4 * bin(flags).count("1") + if source == 1: + reason = _abi_walk(nodes, steps) + if reason: + return reason + + conditions = sections.get(5, b"\0\0") + if u16(conditions, 0) and not capabilities["conditions"]: + return "display conditions are not executed" + + formatters = sections.get(6, b"\0\0") + at = 2 + for _ in range(u16(formatters, 0)): + kind, argc = formatters[at], formatters[at + 2] + at += 3 + if kind not in capabilities["formatters"]: + return "formatter kind %d is not executed" % kind + roles, required = capabilities["formatters"][kind] + seen = set() + for _ in range(argc): + role, source = formatters[at], formatters[at + 1] + at += 4 + if source not in roles.get(role, ()): + return "formatter kind %d argument role %d is not executed" % ( + kind, role) + seen.add(role) + if not required <= seen: + return "formatter kind %d lacks a required argument" % kind + + displays = sections.get(7, b"\0\0") + for pc in range(u16(displays, 0)): + opcode, _, a, b, c = struct.unpack( + ">BBHHH", displays[2 + 8 * pc:10 + 8 * pc]) + if opcode not in capabilities["display_opcodes"]: + return "display opcode %d is not executed" % opcode + if (opcode == 1) != (pc == 0): + return "the intent must be the first display instruction only" + if opcode == 4 and c != ABSENT and not capabilities["conditions"]: + return "display conditions are not executed" + return None + + +def _executable(program, executable_only): + if executable_only: + reason = device_refusal(program) + if reason: + raise DeviceCannotExecute("device cannot execute: " + reason) + return program + + +def compile_calldata(descriptor, signature, chain_id, address, + executable_only=True, **kwargs): + """Compile one calldata format. By default only a program the device + executes is returned; pass executable_only=False to obtain the program + anyway, for example to prove that the device refuses it.""" + return _executable(CalldataCompiler(descriptor, signature, chain_id, + address, **kwargs).compile(), + executable_only) def _typed_base(type_name, types, active): @@ -997,7 +1155,7 @@ def declaration(name): def compile_eip712(descriptor, typed_data, chain_id=None, address=None, - **kwargs): + executable_only=True, **kwargs): """Compile one EIP-712 descriptor against its exact typed-data schema.""" types = typed_data["types"] primary = typed_data["primaryType"] @@ -1040,7 +1198,7 @@ def named(node): if name in domain: constraints.append((field, domain[name])) type_hash = keccak256(eip712_encode_type(primary, types).encode("ascii")) - return CalldataCompiler( + return _executable(CalldataCompiler( synthetic, signature, chain_id, address, definition_kind=2, primary_type_hash=type_hash, domain_constraints=constraints, - **kwargs).compile() + **kwargs).compile(), executable_only) diff --git a/keepkeylib/messages_pb2.py b/keepkeylib/messages_pb2.py index dc6abeb3..500bcef1 100644 --- a/keepkeylib/messages_pb2.py +++ b/keepkeylib/messages_pb2.py @@ -21,7 +21,7 @@ name='messages.proto', package='', syntax='proto2', - serialized_pb=_b('\n\x0emessages.proto\x1a\x0btypes.proto\"\x0c\n\nInitialize\"\r\n\x0bGetFeatures\"\x8a\x05\n\x08\x46\x65\x61tures\x12\x0e\n\x06vendor\x18\x01 \x01(\t\x12\x15\n\rmajor_version\x18\x02 \x01(\r\x12\x15\n\rminor_version\x18\x03 \x01(\r\x12\x15\n\rpatch_version\x18\x04 \x01(\r\x12\x17\n\x0f\x62ootloader_mode\x18\x05 \x01(\x08\x12\x11\n\tdevice_id\x18\x06 \x01(\t\x12\x16\n\x0epin_protection\x18\x07 \x01(\x08\x12\x1d\n\x15passphrase_protection\x18\x08 \x01(\x08\x12\x10\n\x08language\x18\t \x01(\t\x12\r\n\x05label\x18\n \x01(\t\x12\x18\n\x05\x63oins\x18\x0b \x03(\x0b\x32\t.CoinType\x12\x13\n\x0binitialized\x18\x0c \x01(\x08\x12\x10\n\x08revision\x18\r 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\n\x15MessageType_EosSignTx\x10\xda\x04\x1a\x04\x90\xb5\x18\x01\x12)\n\x1eMessageType_EosTxActionRequest\x10\xdb\x04\x1a\x04\x98\xb5\x18\x01\x12%\n\x1aMessageType_EosTxActionAck\x10\xdc\x04\x1a\x04\x90\xb5\x18\x01\x12\"\n\x17MessageType_EosSignedTx\x10\xdd\x04\x1a\x04\x98\xb5\x18\x01\x12%\n\x1aMessageType_NanoGetAddress\x10\xbc\x05\x1a\x04\x90\xb5\x18\x01\x12\"\n\x17MessageType_NanoAddress\x10\xbd\x05\x1a\x04\x98\xb5\x18\x01\x12!\n\x16MessageType_NanoSignTx\x10\xbe\x05\x1a\x04\x90\xb5\x18\x01\x12#\n\x18MessageType_NanoSignedTx\x10\xbf\x05\x1a\x04\x98\xb5\x18\x01\x12\'\n\x1cMessageType_SolanaGetAddress\x10\xee\x05\x1a\x04\x90\xb5\x18\x01\x12$\n\x19MessageType_SolanaAddress\x10\xef\x05\x1a\x04\x98\xb5\x18\x01\x12#\n\x18MessageType_SolanaSignTx\x10\xf0\x05\x1a\x04\x90\xb5\x18\x01\x12%\n\x1aMessageType_SolanaSignedTx\x10\xf1\x05\x1a\x04\x98\xb5\x18\x01\x12(\n\x1dMessageType_SolanaSignMessage\x10\xf2\x05\x1a\x04\x90\xb5\x18\x01\x12-\n\"MessageType_SolanaMessageSignature\x10\xf3\x05\x1a\x04\x98\xb5\x18\x01\x12\x30\n%MessageType_SolanaSignOffchainMessage\x10\xf4\x05\x1a\x04\x90\xb5\x18\x01\x12\x35\n*MessageType_SolanaOffchainMessageSignature\x10\xf5\x05\x1a\x04\x98\xb5\x18\x01\x12(\n\x1dMessageType_BinanceGetAddress\x10\xa0\x06\x1a\x04\x90\xb5\x18\x01\x12%\n\x1aMessageType_BinanceAddress\x10\xa1\x06\x1a\x04\x98\xb5\x18\x01\x12*\n\x1fMessageType_BinanceGetPublicKey\x10\xa2\x06\x1a\x04\x90\xb5\x18\x01\x12\'\n\x1cMessageType_BinancePublicKey\x10\xa3\x06\x1a\x04\x98\xb5\x18\x01\x12$\n\x19MessageType_BinanceSignTx\x10\xa4\x06\x1a\x04\x90\xb5\x18\x01\x12\'\n\x1cMessageType_BinanceTxRequest\x10\xa5\x06\x1a\x04\x98\xb5\x18\x01\x12)\n\x1eMessageType_BinanceTransferMsg\x10\xa6\x06\x1a\x04\x90\xb5\x18\x01\x12&\n\x1bMessageType_BinanceOrderMsg\x10\xa7\x06\x1a\x04\x90\xb5\x18\x01\x12\'\n\x1cMessageType_BinanceCancelMsg\x10\xa8\x06\x1a\x04\x90\xb5\x18\x01\x12&\n\x1bMessageType_BinanceSignedTx\x10\xa9\x06\x1a\x04\x98\xb5\x18\x01\x12\'\n\x1cMessageType_CosmosGetAddress\x10\x84\x07\x1a\x04\x90\xb5\x18\x01\x12$\n\x19MessageType_CosmosAddress\x10\x85\x07\x1a\x04\x98\xb5\x18\x01\x12#\n\x18MessageType_CosmosSignTx\x10\x86\x07\x1a\x04\x90\xb5\x18\x01\x12\'\n\x1cMessageType_CosmosMsgRequest\x10\x87\x07\x1a\x04\x98\xb5\x18\x01\x12#\n\x18MessageType_CosmosMsgAck\x10\x88\x07\x1a\x04\x90\xb5\x18\x01\x12%\n\x1aMessageType_CosmosSignedTx\x10\x89\x07\x1a\x04\x98\xb5\x18\x01\x12(\n\x1dMessageType_CosmosMsgDelegate\x10\x8a\x07\x1a\x04\x98\xb5\x18\x01\x12*\n\x1fMessageType_CosmosMsgUndelegate\x10\x8b\x07\x1a\x04\x98\xb5\x18\x01\x12*\n\x1fMessageType_CosmosMsgRedelegate\x10\x8c\x07\x1a\x04\x98\xb5\x18\x01\x12\'\n\x1cMessageType_CosmosMsgRewards\x10\x8d\x07\x1a\x04\x98\xb5\x18\x01\x12+\n MessageType_CosmosMsgIBCTransfer\x10\x8e\x07\x1a\x04\x98\xb5\x18\x01\x12+\n MessageType_TendermintGetAddress\x10\xe8\x07\x1a\x04\x90\xb5\x18\x01\x12(\n\x1dMessageType_TendermintAddress\x10\xe9\x07\x1a\x04\x98\xb5\x18\x01\x12\'\n\x1cMessageType_TendermintSignTx\x10\xea\x07\x1a\x04\x90\xb5\x18\x01\x12+\n MessageType_TendermintMsgRequest\x10\xeb\x07\x1a\x04\x98\xb5\x18\x01\x12\'\n\x1cMessageType_TendermintMsgAck\x10\xec\x07\x1a\x04\x90\xb5\x18\x01\x12(\n\x1dMessageType_TendermintMsgSend\x10\xed\x07\x1a\x04\x90\xb5\x18\x01\x12)\n\x1eMessageType_TendermintSignedTx\x10\xee\x07\x1a\x04\x98\xb5\x18\x01\x12,\n!MessageType_TendermintMsgDelegate\x10\xef\x07\x1a\x04\x98\xb5\x18\x01\x12.\n#MessageType_TendermintMsgUndelegate\x10\xf0\x07\x1a\x04\x98\xb5\x18\x01\x12.\n#MessageType_TendermintMsgRedelegate\x10\xf1\x07\x1a\x04\x98\xb5\x18\x01\x12+\n MessageType_TendermintMsgRewards\x10\xf2\x07\x1a\x04\x98\xb5\x18\x01\x12/\n$MessageType_TendermintMsgIBCTransfer\x10\xf3\x07\x1a\x04\x98\xb5\x18\x01\x12(\n\x1dMessageType_OsmosisGetAddress\x10\xcc\x08\x1a\x04\x90\xb5\x18\x01\x12%\n\x1aMessageType_OsmosisAddress\x10\xcd\x08\x1a\x04\x98\xb5\x18\x01\x12$\n\x19MessageType_OsmosisSignTx\x10\xce\x08\x1a\x04\x90\xb5\x18\x01\x12(\n\x1dMessageType_OsmosisMsgRequest\x10\xcf\x08\x1a\x04\x98\xb5\x18\x01\x12$\n\x19MessageType_OsmosisMsgAck\x10\xd0\x08\x1a\x04\x90\xb5\x18\x01\x12%\n\x1aMessageType_OsmosisMsgSend\x10\xd1\x08\x1a\x04\x90\xb5\x18\x01\x12)\n\x1eMessageType_OsmosisMsgDelegate\x10\xd2\x08\x1a\x04\x90\xb5\x18\x01\x12+\n MessageType_OsmosisMsgUndelegate\x10\xd3\x08\x1a\x04\x90\xb5\x18\x01\x12+\n MessageType_OsmosisMsgRedelegate\x10\xd4\x08\x1a\x04\x90\xb5\x18\x01\x12(\n\x1dMessageType_OsmosisMsgRewards\x10\xd5\x08\x1a\x04\x90\xb5\x18\x01\x12&\n\x1bMessageType_OsmosisMsgLPAdd\x10\xd6\x08\x1a\x04\x90\xb5\x18\x01\x12)\n\x1eMessageType_OsmosisMsgLPRemove\x10\xd7\x08\x1a\x04\x90\xb5\x18\x01\x12(\n\x1dMessageType_OsmosisMsgLPStake\x10\xd8\x08\x1a\x04\x90\xb5\x18\x01\x12*\n\x1fMessageType_OsmosisMsgLPUnstake\x10\xd9\x08\x1a\x04\x90\xb5\x18\x01\x12,\n!MessageType_OsmosisMsgIBCTransfer\x10\xda\x08\x1a\x04\x90\xb5\x18\x01\x12%\n\x1aMessageType_OsmosisMsgSwap\x10\xdb\x08\x1a\x04\x90\xb5\x18\x01\x12&\n\x1bMessageType_OsmosisSignedTx\x10\xdc\x08\x1a\x04\x98\xb5\x18\x01\x12*\n\x1fMessageType_MayachainGetAddress\x10\xb0\t\x1a\x04\x90\xb5\x18\x01\x12\'\n\x1cMessageType_MayachainAddress\x10\xb1\t\x1a\x04\x98\xb5\x18\x01\x12&\n\x1bMessageType_MayachainSignTx\x10\xb2\t\x1a\x04\x90\xb5\x18\x01\x12*\n\x1fMessageType_MayachainMsgRequest\x10\xb3\t\x1a\x04\x98\xb5\x18\x01\x12&\n\x1bMessageType_MayachainMsgAck\x10\xb4\t\x1a\x04\x90\xb5\x18\x01\x12(\n\x1dMessageType_MayachainSignedTx\x10\xb5\t\x1a\x04\x98\xb5\x18\x01\x12$\n\x19MessageType_ZcashSignPCZT\x10\x94\n\x1a\x04\x90\xb5\x18\x01\x12&\n\x1bMessageType_ZcashPCZTAction\x10\x95\n\x1a\x04\x90\xb5\x18\x01\x12)\n\x1eMessageType_ZcashPCZTActionAck\x10\x96\n\x1a\x04\x98\xb5\x18\x01\x12&\n\x1bMessageType_ZcashSignedPCZT\x10\x97\n\x1a\x04\x98\xb5\x18\x01\x12)\n\x1eMessageType_ZcashGetOrchardFVK\x10\x98\n\x1a\x04\x90\xb5\x18\x01\x12&\n\x1bMessageType_ZcashOrchardFVK\x10\x99\n\x1a\x04\x98\xb5\x18\x01\x12,\n!MessageType_ZcashTransparentInput\x10\x9a\n\x1a\x04\x90\xb5\x18\x01\x12-\n\"MessageType_ZcashTransparentSigned\x10\x9b\n\x1a\x04\x98\xb5\x18\x01\x12*\n\x1fMessageType_ZcashDisplayAddress\x10\x9c\n\x1a\x04\x90\xb5\x18\x01\x12#\n\x18MessageType_ZcashAddress\x10\x9d\n\x1a\x04\x98\xb5\x18\x01\x12-\n\"MessageType_ZcashTransparentOutput\x10\x9e\n\x1a\x04\x90\xb5\x18\x01\x12*\n\x1fMessageType_ZcashTransparentAck\x10\x9f\n\x1a\x04\x98\xb5\x18\x01\x12%\n\x1aMessageType_TronGetAddress\x10\xf8\n\x1a\x04\x90\xb5\x18\x01\x12\"\n\x17MessageType_TronAddress\x10\xf9\n\x1a\x04\x98\xb5\x18\x01\x12!\n\x16MessageType_TronSignTx\x10\xfa\n\x1a\x04\x90\xb5\x18\x01\x12#\n\x18MessageType_TronSignedTx\x10\xfb\n\x1a\x04\x98\xb5\x18\x01\x12&\n\x1bMessageType_TronSignMessage\x10\xfc\n\x1a\x04\x90\xb5\x18\x01\x12+\n 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MessageType_HiveSignedOperations\x10\xd1\x0c\x1a\x04\x98\xb5\x18\x01\x12\x34\n)MessageType_ClearsignAttestorGetPublicKey\x10\xa4\r\x1a\x04\x90\xb5\x18\x01\x12\x31\n&MessageType_ClearsignAttestorPublicKey\x10\xa5\r\x1a\x04\x98\xb5\x18\x01\x12,\n!MessageType_ClearsignAttestorSign\x10\xa6\r\x1a\x04\x90\xb5\x18\x01\x12\x31\n&MessageType_ClearsignAttestorSignature\x10\xa7\r\x1a\x04\x98\xb5\x18\x01\x42,\n\x1a\x63om.keepkey.deviceprotocolB\x0eKeepKeyMessage') , dependencies=[types__pb2.DESCRIPTOR,]) @@ -926,8 +926,8 @@ ], containing_type=None, options=None, - serialized_start=5558, - serialized_end=14585, + serialized_start=5603, + serialized_end=14630, ) _sym_db.RegisterEnumDescriptor(_MESSAGETYPE) @@ -3969,6 +3969,20 @@ message_type=None, enum_type=None, containing_type=None, is_extension=False, extension_scope=None, options=None, file=DESCRIPTOR), + _descriptor.FieldDescriptor( + name='confirm_title', full_name='DebugLinkState.confirm_title', index=15, + number=16, type=9, cpp_type=9, label=1, + has_default_value=False, default_value=_b("").decode('utf-8'), + message_type=None, enum_type=None, containing_type=None, + is_extension=False, extension_scope=None, + options=None, file=DESCRIPTOR), + _descriptor.FieldDescriptor( + name='confirm_body', full_name='DebugLinkState.confirm_body', index=16, + number=17, type=9, cpp_type=9, label=1, + has_default_value=False, default_value=_b("").decode('utf-8'), + message_type=None, enum_type=None, containing_type=None, + is_extension=False, extension_scope=None, + options=None, file=DESCRIPTOR), ], extensions=[ ], @@ -3982,7 +3996,7 @@ oneofs=[ ], serialized_start=4862, - serialized_end=5226, + serialized_end=5271, ) @@ -4005,8 +4019,8 @@ extension_ranges=[], oneofs=[ ], - serialized_start=5228, - serialized_end=5243, + serialized_start=5273, + serialized_end=5288, ) @@ -4050,8 +4064,8 @@ extension_ranges=[], oneofs=[ ], - serialized_start=5245, - serialized_end=5304, + serialized_start=5290, + serialized_end=5349, ) @@ -4074,8 +4088,8 @@ extension_ranges=[], oneofs=[ ], - serialized_start=5306, - serialized_end=5327, + serialized_start=5351, + serialized_end=5372, ) @@ -4105,8 +4119,8 @@ extension_ranges=[], oneofs=[ ], - serialized_start=5329, - serialized_end=5361, + serialized_start=5374, + serialized_end=5406, ) @@ -4129,8 +4143,8 @@ extension_ranges=[], oneofs=[ ], - serialized_start=5363, - serialized_end=5394, + serialized_start=5408, + serialized_end=5439, ) @@ -4160,8 +4174,8 @@ extension_ranges=[], oneofs=[ ], - serialized_start=5396, - serialized_end=5444, + serialized_start=5441, + serialized_end=5489, ) @@ -4191,8 +4205,8 @@ extension_ranges=[], oneofs=[ ], - serialized_start=5446, - serialized_end=5486, + serialized_start=5491, + serialized_end=5531, ) @@ -4229,8 +4243,8 @@ extension_ranges=[], oneofs=[ ], - serialized_start=5488, - serialized_end=5555, + serialized_start=5533, + serialized_end=5600, ) _FEATURES.fields_by_name['coins'].message_type = types__pb2._COINTYPE diff --git a/scripts/generate-test-report.py b/scripts/generate-test-report.py index 6e405b3a..3661162f 100644 --- a/scripts/generate-test-report.py +++ b/scripts/generate-test-report.py @@ -432,7 +432,6 @@ def parse_junit(path): ('test_msg_ethereum_clearsign_additive', 'test_failed_signature_falls_back_to_the_unverified_review'), ('test_msg_ethereum_clear_signing', 'test_binding_happy_path_signs_and_recovers'), - ('test_msg_ethereum_clear_signing', 'test_clearsign_erc20_approve_unlimited'), ('test_msg_ethereum_clear_signing', 'test_clearsign_uniswap_v2_eth_to_token'), # The newest/highest-stakes tx shapes get the full ordered walkthrough too. ('test_msg_ethereum_clear_signing', 'test_clearsign_eip7702_setcode_authorization'), @@ -460,10 +459,9 @@ def _v_catalog_tests(start_id=17): silently go stale (as happened when the old hand-written V17-V23 test names drifted from the dynamically-generated ones). - Every entry gets a NON-EMPTY screenshots hint: screenshot_filter() below - only includes tests whose hint list is non-empty in the Phase-1 capture - filter, so an empty list here would silently exclude a flow from ever - getting an OLED screenshot. + Signing entries get screenshot hints. The unlimited-approval refusal is + deliberately screenless: its wire assertion requires immediate Failure, + so setup or home frames must never be used as approval evidence. """ if not CLEARSIGN_FLOWS: return [] @@ -473,6 +471,18 @@ def _v_catalog_tests(start_id=17): if f['key'] == 'aave-v3-supply': continue method = 'test_clearsign_' + f['key'].replace('-', '_').replace('.', '_') + if f['key'] == 'erc20-approve-unlimited': + out.append(( + 'V%d' % i, 'test_msg_ethereum_clear_signing', method, + 'Unlimited ERC-20 approval refused before confirmation', + 'Even with AdvancedMode and valid runtime metadata, unlimited ' + 'approval returns Failure before any ButtonRequest or signature. ' + 'The wire test requires that immediate refusal; no OLED approval ' + 'screen is expected.', + [], + )) + i += 1 + continue def _arg_shown(a): # Render what the OLED will actually show for this arg: @@ -502,14 +512,14 @@ def _arg_shown(a): # Prefer any TOKEN_AMOUNT/ADDRESS/STRING label as the screenshot hint # so it reads like what the OLED will actually show. hint_names = [a['name'] for a in f['args'][:2]] or [f['method']] - ctx = ('%s.%s (%s). %s AdvancedMode OFF; the bound metadata is the ' - 'only reason this contract data may sign. Real tx: to=0x%s..%s, ' + ctx = ('%s.%s (%s). %s AdvancedMode ON; runtime annotations are ' + 'additional to ordinary raw review. Real tx: to=0x%s..%s, ' 'chainId %d. Decode: %s.' % ( f['protocol'], f['method'], f['category'], f.get('why', ''), f['to'].hex()[:4], f['to'].hex()[-4:], f['chain_id'], shows)) out.append(( 'V%d' % i, 'test_msg_ethereum_clear_signing', method, - '%s %s — clear-signed, zero hex' % (f['protocol'], f['method']), + '%s %s — annotated with ordinary review' % (f['protocol'], f['method']), ctx, hint_names, )) diff --git a/tests/test_erc7730_compiler.py b/tests/test_erc7730_compiler.py index 576d8284..c6219af5 100644 --- a/tests/test_erc7730_compiler.py +++ b/tests/test_erc7730_compiler.py @@ -10,12 +10,53 @@ import pytest from keepkeylib.erc7730_compiler import ( - HEADER_SIZE, compile_calldata, compile_eip712, eip712_encode_type, - load_descriptor, parse_function_signature, + HEADER_SIZE, DeviceCannotExecute, compile_calldata, compile_eip712, + device_refusal, eip712_encode_type, load_descriptor, + parse_function_signature, ) from keepkeylib.signed_metadata import keccak256 +# CI sets KK_REQUIRE_ERC7730_EVIDENCE=1. There, a missing firmware validator or +# official registry is a FAILURE: these tests are reported as firmware and +# registry conformance evidence, and silently skipping that step would let a +# host-only compile masquerade as firmware acceptance. Elsewhere the absence is +# reported as an explicit skip, never as a pass. +REQUIRE_EVIDENCE = os.environ.get("KK_REQUIRE_ERC7730_EVIDENCE") == "1" + + +def _evidence_input(name): + value = os.environ.get(name) + if value: + return value + message = "%s is not configured" % name + if REQUIRE_EVIDENCE: + pytest.fail(message + " (required by KK_REQUIRE_ERC7730_EVIDENCE=1)") + pytest.skip(message) + + +def _firmware_accepts(program): + validator = _evidence_input("ERC7730_FIRMWARE_VALIDATOR") + with tempfile.NamedTemporaryFile() as compiled: + compiled.write(program) + compiled.flush() + return subprocess.call([validator, compiled.name], + stdout=subprocess.DEVNULL, + stderr=subprocess.DEVNULL) == 0 + + +def _unchecked(compile, *args, **kwargs): + return compile(*args, executable_only=False, **kwargs) + + +def _firmware_validate(program, refusal=None): + """The device verifier accepts `program` exactly when the compiler's + capability mirror does, and `refusal` names the expected reason (None + for a program the device executes).""" + assert device_refusal(program) == refusal + assert _firmware_accepts(program) == (refusal is None) + + def _sections(program): count = program[178] offset = HEADER_SIZE @@ -111,8 +152,8 @@ def test_compiles_deterministic_canonical_calldata_program(): ], network_records=[(1, "Ethereum", "ETH", 18)], ) - first = compile_calldata(descriptor, **kwargs) - second = compile_calldata(descriptor, **kwargs) + first = _unchecked(compile_calldata, descriptor, **kwargs) + second = _unchecked(compile_calldata, descriptor, **kwargs) assert first == second assert first[:4] == b"C773" assert first[4:8] == bytes([1, 2, 0, 1]) @@ -127,18 +168,12 @@ def test_compiles_deterministic_canonical_calldata_program(): assert set(sections) == {1, 2, 3, 6, 7, 8, 9} assert hashlib.sha256(first).digest() == hashlib.sha256(second).digest() assert len(first) < 16384 - validator = os.environ.get("ERC7730_FIRMWARE_VALIDATOR") - if validator: - with tempfile.NamedTemporaryFile() as compiled: - compiled.write(first) - compiled.flush() - subprocess.check_call([validator, compiled.name]) + _firmware_validate(first, + "formatter kind 3 is not executed") def test_compiles_official_uniswap_tuple_fixture_through_firmware(): - registry = os.environ.get("ERC7730_REGISTRY") - if not registry: - pytest.skip("official ERC-7730 registry not configured") + registry = _evidence_input("ERC7730_REGISTRY") path = os.path.join( registry, "registry", "uniswap", "calldata-UniswapV3Router02.json") with open(path, "r") as source: @@ -152,7 +187,7 @@ def test_compiles_official_uniswap_tuple_fixture_through_firmware(): "exactInputSingle((address tokenIn, address tokenOut, uint24 fee, " "address recipient, uint256 amountIn, uint256 amountOutMinimum, " "uint160 sqrtPriceLimitX96) params)") - compiled = compile_calldata( + compiled = _unchecked(compile_calldata, descriptor, signature, 1, "0x68b3465833fb72a70ecdf485e0e4c7bd8665fc45", token_records=[ @@ -168,12 +203,8 @@ def test_compiles_official_uniswap_tuple_fixture_through_firmware(): assert calldata[:4] == compiled[38:42] assert fixtures[1]["txHash"] == ( "0xb25281abb3e6bbfe18c746187522c2e915aa02fdb8175082005340e00c1f0b30") - validator = os.environ.get("ERC7730_FIRMWARE_VALIDATOR") - if validator: - with tempfile.NamedTemporaryFile() as output: - output.write(compiled) - output.flush() - subprocess.check_call([validator, output.name]) + _firmware_validate(compiled, + "formatter kind 3 is not executed") def test_compiles_and_checks_exact_keepkey_sdk_thorchain_swap(): @@ -195,16 +226,12 @@ def test_compiles_and_checks_exact_keepkey_sdk_thorchain_swap(): assert memo == expected["memo"] assert int(fixture["value"], 16) == int(expected["amount"]) - compiled = compile_calldata( + compiled = _unchecked(compile_calldata, fixture["descriptor"], fixture["signature"], fixture["chainId"], fixture["to"], network_records=[(1, "Ethereum", "ETH", 18)]) assert compiled[38:42].hex() == expected["selector"] - validator = os.environ.get("ERC7730_FIRMWARE_VALIDATOR") - if validator: - with tempfile.NamedTemporaryFile() as output: - output.write(compiled) - output.flush() - subprocess.check_call([validator, output.name]) + _firmware_validate(compiled, + "formatter kind 10 is not executed") def test_compiles_array_iteration_separator_and_optional_visibility(): @@ -222,7 +249,7 @@ def test_compiles_array_iteration_separator_and_optional_visibility(): } }} } - compiled = compile_calldata( + compiled = _unchecked(compile_calldata, descriptor, "batch((address recipient,uint256 amount)[] items)", 1, "0x1111111111111111111111111111111111111111") @@ -236,15 +263,14 @@ def test_compiles_array_iteration_separator_and_optional_visibility(): end = display[26:34] assert int.from_bytes(begin[6:8], "big") == 3 assert int.from_bytes(end[2:4], "big") == 1 - validator = os.environ.get("ERC7730_FIRMWARE_VALIDATOR") - if validator: - with tempfile.NamedTemporaryFile() as output: - output.write(compiled) - output.flush() - subprocess.check_call([validator, output.name]) + _firmware_validate(compiled, + "path step opcode 2 is not executed") -def test_compiles_recursive_array_iteration_frames(): +def test_refuses_nested_array_iteration_the_device_cannot_verify(): + # The device's catalog verifier accepts one "[]" step per path, so a + # program iterating a nested array could never be loaded. The compiler + # refuses it by name instead of emitting a program the device rejects. descriptor = {"display": {"formats": { "matrix(uint256[][] values)": { "intent": "Review matrix", @@ -252,21 +278,10 @@ def test_compiles_recursive_array_iteration_frames(): "format": "raw", "separator": "Next row"}], } }}} - compiled = compile_calldata( - descriptor, "matrix(uint256[][] values)", 1, - "0x1111111111111111111111111111111111111111") - display = _sections(compiled)[7] - count = int.from_bytes(display[:2], "big") - instructions = [display[2 + i * 8:10 + i * 8] for i in range(count)] - assert [item[0] for item in instructions] == [1, 7, 7, 4, 8, 8, 10] - assert int.from_bytes(instructions[1][6:8], "big") == 5 - assert int.from_bytes(instructions[2][6:8], "big") == 4 - validator = os.environ.get("ERC7730_FIRMWARE_VALIDATOR") - if validator: - with tempfile.NamedTemporaryFile() as output: - output.write(compiled) - output.flush() - subprocess.check_call([validator, output.name]) + with pytest.raises(ValueError, match="iterates more than one array"): + compile_calldata( + descriptor, "matrix(uint256[][] values)", 1, + "0x1111111111111111111111111111111111111111") def test_token_amount_without_token_uses_firmware_raw_fallback(): @@ -277,18 +292,15 @@ def test_token_amount_without_token_uses_firmware_raw_fallback(): "format": "tokenAmount"}], } }}} - compiled = compile_calldata( + compiled = _unchecked(compile_calldata, descriptor, "quote(uint256 amount)", 1, "0x1111111111111111111111111111111111111111") + # With no token named the device can only show the raw integer, and its + # verifier refuses a tokenAmount formatter without a token argument. formatter = _sections(compiled)[6] - assert formatter[2:5] == bytes([3, 0, 1]) + assert formatter[2:5] == bytes([1, 0, 1]) assert formatter[5:9] == bytes([1, 1, 0, 0]) - validator = os.environ.get("ERC7730_FIRMWARE_VALIDATOR") - if validator: - with tempfile.NamedTemporaryFile() as output: - output.write(compiled) - output.flush() - subprocess.check_call([validator, output.name]) + _firmware_validate(compiled) def test_compiles_typed_if_not_in_and_must_match_conditions(): @@ -305,7 +317,7 @@ def test_compiles_typed_if_not_in_and_must_match_conditions(): ], } }}} - compiled = compile_calldata( + compiled = _unchecked(compile_calldata, descriptor, "guard(uint256 mode,address recipient)", 1, "0x1111111111111111111111111111111111111111") sections = _sections(compiled) @@ -315,12 +327,8 @@ def test_compiles_typed_if_not_in_and_must_match_conditions(): assert conditions[10] == 8 literals = sections[4] assert int.from_bytes(literals[:2], "big") == 5 - validator = os.environ.get("ERC7730_FIRMWARE_VALIDATOR") - if validator: - with tempfile.NamedTemporaryFile() as output: - output.write(compiled) - output.flush() - subprocess.check_call([validator, output.name]) + _firmware_validate(compiled, + "display conditions are not executed") def test_compiles_interpolated_intent_and_metadata_enum(): @@ -340,7 +348,7 @@ def test_compiles_interpolated_intent_and_metadata_enum(): } }} } - compiled = compile_calldata( + compiled = _unchecked(compile_calldata, descriptor, "swap(bool selling,uint256 amount)", 1, "0x1111111111111111111111111111111111111111") sections = _sections(compiled) @@ -353,12 +361,8 @@ def test_compiles_interpolated_intent_and_metadata_enum(): assert formatters[2] == 8 literals = sections[4] assert int.from_bytes(literals[:2], "big") == 3 - validator = os.environ.get("ERC7730_FIRMWARE_VALIDATOR") - if validator: - with tempfile.NamedTemporaryFile() as output: - output.write(compiled) - output.flush() - subprocess.check_call([validator, output.name]) + _firmware_validate(compiled, + "formatter kind 8 is not executed") def test_compiles_nested_field_group_with_balanced_links(): @@ -374,7 +378,7 @@ def test_compiles_nested_field_group_with_balanced_links(): }], } }}} - compiled = compile_calldata( + compiled = _unchecked(compile_calldata, descriptor, "act((address owner,uint256 amount) details)", 1, "0x1111111111111111111111111111111111111111") display = _sections(compiled)[7] @@ -383,12 +387,8 @@ def test_compiles_nested_field_group_with_balanced_links(): assert [item[0] for item in instructions] == [1, 5, 4, 4, 6, 10] assert int.from_bytes(instructions[1][6:8], "big") == 4 assert int.from_bytes(instructions[4][2:4], "big") == 1 - validator = os.environ.get("ERC7730_FIRMWARE_VALIDATOR") - if validator: - with tempfile.NamedTemporaryFile() as output: - output.write(compiled) - output.flush() - subprocess.check_call([validator, output.name]) + _firmware_validate(compiled, + "formatter kind 10 is not executed") def test_loads_bounded_includes_and_compiles_array_backed_group(tmp_path): @@ -416,28 +416,38 @@ def test_loads_bounded_includes_and_compiles_array_backed_group(tmp_path): path = tmp_path / "descriptor.json" path.write_text(json.dumps(descriptor)) loaded = load_descriptor(str(path), str(tmp_path)) - compiled = compile_calldata( + compiled = _unchecked(compile_calldata, loaded, "batch((address to,uint256 amount)[] items)", 1, "0x1111111111111111111111111111111111111111") display = _sections(compiled)[7] count = int.from_bytes(display[:2], "big") opcodes = [display[2 + i * 8] for i in range(count)] assert opcodes == [1, 7, 5, 4, 4, 6, 8, 10] - validator = os.environ.get("ERC7730_FIRMWARE_VALIDATOR") - if validator: - with tempfile.NamedTemporaryFile() as output: - output.write(compiled) - output.flush() - subprocess.check_call([validator, output.name]) + _firmware_validate(compiled, + "path step opcode 2 is not executed") + + +DEVICE_LIMITS = ( + "iterates more than one array", + "nests deeper than the device supports", +) + + +# Formats the device can fully sign with this firmware's capability table. +# Each later phase of the ERC-7730 formatter plan raises this number +# (docs/security/HANDOFF-ERC7730-715-FORMATTERS.md in keepkey-firmware). +# The plan estimated 94; two 1inch increaseEpoch formats show a raw field read +# from a container path (@.from), which the runtime does not capture. +REGISTRY_SIGNABLE = 92 def test_official_registry_all_calldata_formats_reach_firmware(): - registry = os.environ.get("ERC7730_REGISTRY") - validator = os.environ.get("ERC7730_FIRMWARE_VALIDATOR") - if not registry or not validator: - pytest.skip("official registry and firmware validator are required") + registry = _evidence_input("ERC7730_REGISTRY") + _evidence_input("ERC7730_FIRMWARE_VALIDATOR") import glob failures = [] + unsupported = [] + signable = 0 checked = 0 for path in glob.glob(os.path.join( registry, "registry", "**", "calldata-*.json"), recursive=True): @@ -453,26 +463,37 @@ def test_official_registry_all_calldata_formats_reach_firmware(): for signature in descriptor.get("display", {}).get("formats", {}): checked += 1 try: - program = compile_calldata( - descriptor, signature, deployment["chainId"], - deployment["address"]) - with tempfile.NamedTemporaryFile() as output: - output.write(program) - output.flush() - subprocess.check_call( - [validator, output.name], stdout=subprocess.DEVNULL, - stderr=subprocess.DEVNULL) + try: + program = _unchecked( + compile_calldata, descriptor, signature, + deployment["chainId"], deployment["address"]) + except ValueError as exc: + if any(reason in str(exc) for reason in DEVICE_LIMITS): + unsupported.append(signature) + continue + raise + # The device verifier and the compiler's capability mirror + # must agree on every format, in both directions. + executable = device_refusal(program) is None + if _firmware_accepts(program) != executable: + raise AssertionError( + "device and compiler disagree: %r" % + device_refusal(program)) + signable += executable except Exception as exc: failures.append("%s :: %s :: %s" % ( os.path.basename(path), signature, exc)) assert checked == 1450 assert failures == [] + # Every other format is refused by the compiler for a named device limit: + # 8 iterate nested arrays, 2 nest their ABI deeper than 8 levels. + assert len(unsupported) == 10 + # Passing the parser is not signability: only these run end to end. + assert signable == REGISTRY_SIGNABLE def test_compiles_official_uniswap_eip712_fixture_through_firmware(): - registry = os.environ.get("ERC7730_REGISTRY") - if not registry: - pytest.skip("official ERC-7730 registry not configured") + registry = _evidence_input("ERC7730_REGISTRY") with open(os.path.join(registry, "registry", "uniswap", "eip712-uniswap-permit2.json"), "r") as source: descriptor = json.load(source) @@ -483,7 +504,7 @@ def test_compiles_official_uniswap_eip712_fixture_through_firmware(): assert encoded == ( "PermitSingle(PermitDetails details,address spender,uint256 sigDeadline)" "PermitDetails(address token,uint160 amount,uint48 expiration,uint48 nonce)") - compiled = compile_eip712( + compiled = _unchecked(compile_eip712, descriptor, fixture, token_records=[ (1, "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48", "USDC", 6) @@ -496,9 +517,5 @@ def test_compiles_official_uniswap_eip712_fixture_through_firmware(): binding = sections[8] # deployment + name/chain/contract domain facts + token + network assert int.from_bytes(binding[:2], "big") == 6 - validator = os.environ.get("ERC7730_FIRMWARE_VALIDATOR") - if validator: - with tempfile.NamedTemporaryFile() as output: - output.write(compiled) - output.flush() - subprocess.check_call([validator, output.name]) + _firmware_validate(compiled, + "formatter kind 3 is not executed") diff --git a/tests/test_msg_eip712_streaming.py b/tests/test_msg_eip712_streaming.py index f3e5862e..6a6a48fe 100644 --- a/tests/test_msg_eip712_streaming.py +++ b/tests/test_msg_eip712_streaming.py @@ -8,15 +8,20 @@ # reading is self-consistent. Only an outside number can catch a shared # misreading. +import copy +import time import unittest import common +import oled_text from keepkeylib import eip712_stream as es from keepkeylib import messages_ethereum_pb2 as eth from keepkeylib import messages_pb2 as proto +from keepkeylib import types_pb2 as types from keepkeylib.client import CallException PATH = [0x8000002C, 0x8000003C, 0x80000000, 0, 0] +SETTLE = 0.3 # seconds for a confirm screen to finish drawing # assets/eip-712/Example.js in ethereum/EIPs publishes every intermediate. SPEC_MAIL = { @@ -50,8 +55,109 @@ SPEC_MESSAGE_HASH = "c52c0ee5d84264471806290a3f2c4cecfc5490626bf912d01f240d7a274b371e" +# --- Independent EIP-712 reference encoder ---------------------------------- +# Written from the EIP-712 specification text and deliberately NOT built on +# keepkeylib.eip712_stream (the host half of the protocol under test), so a +# shared misreading of arrays or nested dimensions cannot make both sides +# agree. keccak comes from pycryptodome directly. +def _keccak(data): + from Crypto.Hash import keccak + return keccak.new(digest_bits=256, data=data).digest() + + +def _ref_base_struct(type_name): + return type_name.split('[', 1)[0] + + +def _ref_encode_type(primary, types): + deps = set() + + def collect(name): + if name in deps or name not in types: + return + deps.add(name) + for field in types[name]: + collect(_ref_base_struct(field['type'])) + + collect(primary) + deps.discard(primary) + return ''.join( + '%s(%s)' % (name, ','.join('%s %s' % (f['type'], f['name']) + for f in types[name])) + for name in [primary] + sorted(deps)) + + +def _ref_int(value): + if isinstance(value, str): + return int(value, 16) if value.startswith('0x') else int(value) + return int(value) + + +def _ref_encode_value(type_name, value, types): + if type_name.endswith(']'): + # Arrays: keccak of the concatenated encodings of the elements, where + # each element of T[n][m] is itself an encoded T[n] array. + inner = type_name[:type_name.rindex('[')] + return _keccak(b''.join( + _ref_encode_value(inner, item, types) for item in value)) + if type_name in types: + return _ref_hash_struct(type_name, value, types) + if type_name == 'string': + return _keccak(value.encode('utf-8')) + if type_name == 'bytes': + return _keccak(bytes.fromhex(value[2:])) + if type_name == 'address': + return bytes(12) + bytes.fromhex(value[2:]) + if type_name == 'bool': + return (1 if value else 0).to_bytes(32, 'big') + if type_name.startswith('bytes'): + return bytes.fromhex(value[2:]).ljust(32, b'\0') + if type_name.startswith('uint'): + return _ref_int(value).to_bytes(32, 'big') + if type_name.startswith('int'): + return (_ref_int(value) % (1 << 256)).to_bytes(32, 'big') + raise ValueError('reference encoder: unsupported type ' + type_name) + + +def _ref_hash_struct(name, data, types): + encoded = _keccak(_ref_encode_type(name, types).encode('ascii')) + for field in types[name]: + encoded += _ref_encode_value(field['type'], data[field['name']], types) + return _keccak(encoded) + + +def reference_eip712_hashes(doc): + """Return (domain_separator, message_hash, signing_digest). + + primaryType EIP712Domain signs keccak(0x1901 || domainSeparator) with no + message hash (eth-sig-util v4); message_hash is None then.""" + types = doc['types'] + domain = _ref_hash_struct('EIP712Domain', doc['domain'], types) + if doc['primaryType'] == 'EIP712Domain': + return domain, None, _keccak(b'\x19\x01' + domain) + message = _ref_hash_struct(doc['primaryType'], doc['message'], types) + return domain, message, _keccak(b'\x19\x01' + domain + message) + + +def recover_signer(signature, digest): + from ecdsa import VerifyingKey, SECP256k1, util + rec = signature[64] - 27 + if rec not in (0, 1): + raise AssertionError('unexpected recovery byte %d' % signature[64]) + keys = VerifyingKey.from_public_key_recovery_with_digest( + signature[:64], digest, SECP256k1, hashfunc=None, + sigdecode=util.sigdecode_string) + return _keccak(keys[rec].to_string())[-20:] + + class TestEip712StreamHelpers(unittest.TestCase): + def test_reference_encoder_reproduces_the_published_spec_hashes(self): + """The independent encoder is itself checked against Example.js.""" + domain, message, _ = reference_eip712_hashes(SPEC_MAIL) + self.assertEqual(domain.hex(), SPEC_DOMAIN_SEPARATOR) + self.assertEqual(message.hex(), SPEC_MESSAGE_HASH) + def test_review_identifiers_are_exact_and_unambiguous(self): doc = { 'types': { @@ -125,7 +231,7 @@ def test_innermost_fixed_array_length_is_checked(self): class TestMsgEip712Streaming(common.KeepKeyTest): - def _walk(self, doc, max_steps=400): + def _walk(self, doc, max_steps=400, decline_final=False): """Answer whatever the device asks until it returns a signature. The DEVICE leads. Nothing here chooses the order, which is the property @@ -138,6 +244,8 @@ def _walk(self, doc, max_steps=400): msg.primary_type = doc['primaryType'] msg.metamask_v4_compat = True + # (ButtonRequest code, framebuffer) for every screen, in order. + self.frames = [] resp = self.client.call_raw(msg) for _ in range(max_steps): if isinstance(resp, proto.ButtonRequest): @@ -145,7 +253,15 @@ def _walk(self, doc, max_steps=400): # callback_ButtonRequest() will capture the field being # approved. Retain it while that exact field is still active. self.client.capture_oled() - self.client.debug.press_yes() + # capture_oled() only settles when screenshots are enabled; + # the text assertions need the finished frame either way. + time.sleep(SETTLE) + self.frames.append( + (resp.code, bytes(self.client.debug.read_layout()))) + if decline_final and resp.code == types.ButtonRequest_SignTx: + self.client.debug.press_no() + else: + self.client.debug.press_yes() resp = self.client.call_raw(proto.ButtonAck()) elif isinstance(resp, eth.EthereumTypedDataStructRequest): resp = self.client.call_raw( @@ -160,6 +276,46 @@ def _walk(self, doc, max_steps=400): return resp raise AssertionError('walk did not terminate') + def _assert_final_sign_screen(self, first_line): + """Every typed-data signature ends with ONE "Sign Typed Data" screen + (ButtonRequest_SignTx); only its own continuation pages follow it.""" + codes = [code for code, _ in self.frames] + self.assertEqual(codes.count(types.ButtonRequest_SignTx), 1) + final = codes.index(types.ButtonRequest_SignTx) + self.assertTrue(all(code == types.ButtonRequest_Other + for code in codes[final + 1:])) + layout = self.frames[final][1] + self.assertIsNotNone(oled_text.find_line( + layout, 'SIGN TYPED DATA', oled_text.TITLE_FONT)) + self.assertIsNotNone(oled_text.find_line(layout, first_line)) + return final + + def _leaf_index(self, path): + """Index of the first screen whose body starts with `path`.""" + for index, (_, layout) in enumerate(self.frames): + if oled_text.find_line(layout, path) is not None: + return index + self.fail('no screen shows the %r leaf' % path) + + def _assert_reference_signature(self, doc, resp): + """The device's hashes AND signature match an independent encoder.""" + self.assertIsInstance(resp, eth.EthereumTypedDataSignature) + domain, message, digest = reference_eip712_hashes(doc) + self.assertEqual(resp.domain_separator_hash.hex(), domain.hex()) + if doc['primaryType'] == 'EIP712Domain': + self.assertFalse(resp.has_msg_hash) + self.assertEqual(resp.message_hash, b'') + else: + self.assertEqual(resp.message_hash.hex(), message.hex()) + self._assert_final_sign_screen('Sign ' + doc['primaryType']) + self.assertEqual(len(resp.signature), 65) + address = self.client.ethereum_get_address(PATH) + self.assertEqual(recover_signer(resp.signature, digest).hex(), + address.hex()) + # The reported signer must be intact too: the response is built after + # the final screen, so a DebugLink read during it cannot erase it. + self.assertEqual(resp.address.lower(), '0x' + address.hex()) + def setUp(self): super(TestMsgEip712Streaming, self).setUp() self.requires_firmware("7.15.0") @@ -189,7 +345,7 @@ def test_spec_example_matches_the_published_hashes(self): self.assertIsInstance(resp, eth.EthereumTypedDataSignature) self.assertEqual(resp.domain_separator_hash.hex(), SPEC_DOMAIN_SEPARATOR) self.assertEqual(resp.message_hash.hex(), SPEC_MESSAGE_HASH) - self.assertEqual(len(resp.signature), 65) + self._assert_reference_signature(SPEC_MAIL, resp) def test_array_of_structs_walks(self): """Arrays, which the walk refused until the decode buffer was reclaimed. @@ -209,12 +365,10 @@ def test_array_of_structs_walks(self): "message": {"items": [{"id": 1}, {"id": 2}]}, } resp = self._walk(doc) - self.assertIsInstance(resp, eth.EthereumTypedDataSignature) - self.assertEqual(len(resp.signature), 65) + self._assert_reference_signature(doc, resp) def test_multidimensional_arrays_walk_outermost_first_on_device(self): """Host and device must traverse asymmetric Solidity dimensions alike.""" - self.requires_release_capability("evm-unknown-token-review") doc = { 'types': { 'EIP712Domain': [], @@ -233,8 +387,7 @@ def test_multidimensional_arrays_walk_outermost_first_on_device(self): } resp = self._walk(doc) - self.assertIsInstance(resp, eth.EthereumTypedDataSignature) - self.assertEqual(len(resp.signature), 65) + self._assert_reference_signature(doc, resp) def test_permit2_batch_walks_realistic_nested_array(self): """The production Permit2 Batch shape, including trailing root fields. @@ -288,8 +441,7 @@ def test_permit2_batch_walks_realistic_nested_array(self): }, } resp = self._walk(doc) - self.assertIsInstance(resp, eth.EthereumTypedDataSignature) - self.assertEqual(len(resp.signature), 65) + self._assert_reference_signature(doc, resp) def test_fixed_array_length_must_match_the_declared_size(self): """A declared dimension is part of the type string and so of typeHash. @@ -320,6 +472,117 @@ def test_advanced_mode_is_not_required_for_structured_review(self): self.assertEqual(resp.domain_separator_hash.hex(), SPEC_DOMAIN_SEPARATOR) self.assertEqual(resp.message_hash.hex(), SPEC_MESSAGE_HASH) + def test_declining_the_final_sign_screen_returns_no_signature(self): + """The final "Sign Typed Data" screen is a real consent: declining it + after every leaf was approved signs nothing.""" + resp = self._walk(SPEC_MAIL, decline_final=True) + self.assertIsInstance(resp, proto.Failure) + self.assertEqual((resp.code, resp.message), + (types.Failure_ActionCancelled, + 'Signing cancelled by user')) + codes = [code for code, _ in self.frames] + self.assertEqual(codes.count(types.ButtonRequest_SignTx), 1) + self.assertEqual(codes[-1], types.ButtonRequest_SignTx) + + def test_domain_only_signature_matches_an_independent_digest(self): + """primaryType EIP712Domain signs keccak(0x1901 || domainSeparator).""" + doc = dict(SPEC_MAIL, primaryType='EIP712Domain', message={}) + resp = self._walk(doc) + self.assertIsInstance(resp, eth.EthereumTypedDataSignature) + self.assertEqual(resp.domain_separator_hash.hex(), SPEC_DOMAIN_SEPARATOR) + self._assert_reference_signature(doc, resp) + + def test_unlimited_permits_are_refused_before_the_amount_screen(self): + """EIP-2612 Permit.value and Permit2 PermitDetails.amount at their + all-ones maximum are refused before that leaf is ever displayed.""" + permit = { + "types": { + "EIP712Domain": [ + {"name": "name", "type": "string"}, + {"name": "version", "type": "string"}, + {"name": "chainId", "type": "uint256"}, + {"name": "verifyingContract", "type": "address"}, + ], + "Permit": [ + {"name": "owner", "type": "address"}, + {"name": "spender", "type": "address"}, + {"name": "value", "type": "uint256"}, + {"name": "nonce", "type": "uint256"}, + {"name": "deadline", "type": "uint256"}, + ], + }, + "primaryType": "Permit", + "domain": {"name": "USD Coin", "version": "2", "chainId": 1, + "verifyingContract": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"}, + "message": { + "owner": "0x73d0385F4d8E00C5e6504C6030F47BF6212736A8", + "spender": "0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD", + "value": "1000000", "nonce": "0", "deadline": "1893456000"}, + } + permit2 = { + "types": { + "EIP712Domain": [ + {"name": "name", "type": "string"}, + {"name": "chainId", "type": "uint256"}, + {"name": "verifyingContract", "type": "address"}, + ], + "PermitDetails": [ + {"name": "token", "type": "address"}, + {"name": "amount", "type": "uint160"}, + {"name": "expiration", "type": "uint48"}, + {"name": "nonce", "type": "uint48"}, + ], + "PermitSingle": [ + {"name": "details", "type": "PermitDetails"}, + {"name": "spender", "type": "address"}, + {"name": "sigDeadline", "type": "uint256"}, + ], + }, + "primaryType": "PermitSingle", + "domain": {"name": "Permit2", "chainId": 1, + "verifyingContract": "0x000000000022D473030F116dDEE9F6B43aC78BA3"}, + "message": { + "details": { + "token": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48", + "amount": "250000000", "expiration": "1893456000", + "nonce": "1"}, + "spender": "0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD", + "sigDeadline": "1893456000"}, + } + for doc, path, leaf, bits in ((permit, ("value",), "value", 256), + (permit2, ("details", "amount"), + "details.amount", 160)): + # A finite amount signs and shows the leaf; its position is where + # the unlimited amount must stop. + self._assert_reference_signature(doc, self._walk(doc)) + before_leaf = self._leaf_index(leaf) + unlimited = copy.deepcopy(doc) + target = unlimited["message"] + for key in path[:-1]: + target = target[key] + target[path[-1]] = str((1 << bits) - 1) + resp = self._walk(unlimited) + self.assertIsInstance(resp, proto.Failure) + self.assertEqual((resp.code, resp.message), + (types.Failure_SyntaxError, + 'Unlimited ERC20 approval is disabled')) + self.assertEqual(len(self.frames), before_leaf) + + def test_1024_byte_dynamic_bytes_leaf_signs(self): + """A 1024-byte `bytes` leaf is reviewed in parts and signs; the digest + and signer are checked independently.""" + doc = { + "types": { + "EIP712Domain": [{"name": "name", "type": "string"}], + "Blob": [{"name": "data", "type": "bytes"}], + }, + "primaryType": "Blob", + "domain": {"name": "Blob"}, + "message": {"data": "0x" + bytes(range(256)).hex() * 4}, + } + resp = self._walk(doc) + self._assert_reference_signature(doc, resp) + if __name__ == '__main__': unittest.main() diff --git a/tests/test_msg_ethereum_clear_signing.py b/tests/test_msg_ethereum_clear_signing.py index c3e4a1c9..a6729cdd 100644 --- a/tests/test_msg_ethereum_clear_signing.py +++ b/tests/test_msg_ethereum_clear_signing.py @@ -29,6 +29,9 @@ import struct from keepkeylib import messages_ethereum_pb2 as messages_eth +from keepkeylib import messages_pb2 as messages +from keepkeylib import types_pb2 as types +from keepkeylib.tools import int_to_big_endian try: import common @@ -1029,14 +1032,26 @@ def _clearsign_flow(self, flow, chain_id=1): self.assertEqual(resp.classification, CLASSIFICATION_VERIFIED) if flow['key'] == 'erc20-approve-unlimited': - with self.assertRaises(CallException) as ctx: - self.client.ethereum_sign_tx( - n=n, nonce=FLOW_NONCE, gas_price=FLOW_GAS_PRICE, - gas_limit=FLOW_GAS_LIMIT, to=flow['to'], - value=flow['value'], data=flow['data'], - chain_id=chain_id) - self.assertIn('Unlimited ERC20 approval is disabled', - str(ctx.exception)) + # Drive the wire directly: the policy is refused on the FIRST + # response, before any ButtonRequest. Expected-response helpers + # would raise their own exception text containing the expected + # message, so they cannot prove what the device actually sent. + msg = messages_eth.EthereumSignTx( + address_n=n, + nonce=int_to_big_endian(FLOW_NONCE), + gas_price=int_to_big_endian(FLOW_GAS_PRICE), + gas_limit=int_to_big_endian(FLOW_GAS_LIMIT), + value=int_to_big_endian(flow['value']), + to=flow['to'], chain_id=chain_id, + data_length=len(flow['data']), + data_initial_chunk=flow['data'][:1024]) + self.assertEqual(len(flow['data']), 68) + response = self.client.call_raw(msg) + self.assertIsInstance(response, messages.Failure) + self.assertEqual(response.code, + types.Failure_ActionCancelled) + self.assertEqual(response.message, + 'Unlimited ERC20 approval is disabled') return sig_v, sig_r, sig_s = self.client.ethereum_sign_tx( diff --git a/tests/test_msg_ripple_sign_tx.py b/tests/test_msg_ripple_sign_tx.py index af0db89c..5cb8c4bd 100644 --- a/tests/test_msg_ripple_sign_tx.py +++ b/tests/test_msg_ripple_sign_tx.py @@ -122,11 +122,11 @@ def test_sign_with_thorchain_memo(self): resp = self.client.call(msg) # Verify the XRPL Memos array is appended to the serialized tx. - # Format: 0xF9 (STArray[9]) 0xEA (STObject[10]) 0x72 (MemoData VL[2]) + # Format: 0xF9 (STArray[9]) 0xEA (STObject[10]) 0x7D (MemoData VL[13]) # 0xE1 (end object) 0xF1 (end array) memo_bytes = memo.encode('ascii') expected_tail = ( - bytes([0xF9, 0xEA, 0x72, len(memo_bytes)]) + + bytes([0xF9, 0xEA, 0x7D, len(memo_bytes)]) + memo_bytes + bytes([0xE1, 0xF1]) ) @@ -152,6 +152,36 @@ def test_sign_with_thorchain_memo(self): "plain send must not contain Memos array (0xF9 0xEA marker sequence)" ) + def test_memo_length_prefix_boundaries(self): + self.requires_release_capability("ripple-memo-policy") + self.requires_fullFeature() + self.requires_firmware("7.15.0") + self.setup_mnemonic_allallall() + + for length in (191, 192, 193, 199): + # A distinct suffix makes the last display page inspectable. + memo = "A" * (length - 8) + ("TAIL%04d" % length) + msg = messages.RippleSignTx( + address_n=parse_path("m/44'/144'/0'/0/0"), + payment=messages.RipplePayment( + amount=100000000, + destination="rBKz5MC2iXdoS3XgnNSYmF69K1Yo4NS3Ws" + ), + flags=0x80000000, + fee=100000, + sequence=25 + length, + memo=memo + ) + resp = self.client.call(msg) + prefix = (bytes([length]) if length <= 192 else + bytes([193, length - 193])) + expected_tail = (b'\xf9\xea\x7d' + prefix + + memo.encode('ascii') + b'\xe1\xf1') + self.assertTrue( + resp.serialized_tx.endswith(expected_tail), + "serialized Ripple memo has wrong prefix at length %d" % length + ) + def test_unsupported_memo_is_rejected(self): self.requires_release_capability("ripple-memo-policy") self.requires_fullFeature()