diff --git a/core/.changelog.d/3475.changed b/core/.changelog.d/3475.changed new file mode 100644 index 000000000..0d77c669c --- /dev/null +++ b/core/.changelog.d/3475.changed @@ -0,0 +1 @@ +Display descriptors for BTC Taproot public keys. diff --git a/core/src/apps/bitcoin/common.py b/core/src/apps/bitcoin/common.py index 5f9642100..d1d011db3 100644 --- a/core/src/apps/bitcoin/common.py +++ b/core/src/apps/bitcoin/common.py @@ -212,3 +212,49 @@ def format_fee_rate( shortcut = "" return f"{fee_rate_formatted} sat{shortcut}/{'v' if coin.segwit else ''}B" + + +# function copied from python/src/trezorlib/tools.py +def descriptor_checksum(desc: str) -> str: + def _polymod(c: int, val: int) -> int: + c0 = c >> 35 + c = ((c & 0x7FFFFFFFF) << 5) ^ val + if c0 & 1: + c ^= 0xF5DEE51989 + if c0 & 2: + c ^= 0xA9FDCA3312 + if c0 & 4: + c ^= 0x1BAB10E32D + if c0 & 8: + c ^= 0x3706B1677A + if c0 & 16: + c ^= 0x644D626FFD + return c + + INPUT_CHARSET = "0123456789()[],'/*abcdefgh@:$%{}IJKLMNOPQRSTUVWXYZ&+-.;<=>?!^_|~ijklmnopqrstuvwxyzABCDEFGH`#\"\\ " + CHECKSUM_CHARSET = "qpzry9x8gf2tvdw0s3jn54khce6mua7l" + + c = 1 + cls = 0 + clscount = 0 + for ch in desc: + pos = INPUT_CHARSET.find(ch) + if pos == -1: + return "" + c = _polymod(c, pos & 31) + cls = cls * 3 + (pos >> 5) + clscount += 1 + if clscount == 3: + c = _polymod(c, cls) + cls = 0 + clscount = 0 + if clscount > 0: + c = _polymod(c, cls) + for j in range(0, 8): + c = _polymod(c, 0) + c ^= 1 + + ret = [""] * 8 + for j in range(0, 8): + ret[j] = CHECKSUM_CHARSET[(c >> (5 * (7 - j))) & 31] + return "".join(ret) diff --git a/core/src/apps/bitcoin/get_public_key.py b/core/src/apps/bitcoin/get_public_key.py index 83c08c34a..d1f60ec74 100644 --- a/core/src/apps/bitcoin/get_public_key.py +++ b/core/src/apps/bitcoin/get_public_key.py @@ -1,6 +1,7 @@ from typing import TYPE_CHECKING if TYPE_CHECKING: + from trezor.enums import InputScriptType from trezor.messages import GetPublicKey, PublicKey from trezor.protobuf import MessageType @@ -96,8 +97,13 @@ async def get_public_key( account = coin.coin_shortcut else: account = f"{coin.coin_shortcut} {account_name}" + show_xpub = node_xpub + if script_type == InputScriptType.SPENDTAPROOT: + show_xpub = _xpub_descriptor( + node_xpub, address_n, script_type, node.fingerprint() + ) await show_pubkey( - node_xpub, + show_xpub, "XPUB", account=account, path=path, @@ -110,3 +116,23 @@ async def get_public_key( xpub=node_xpub, root_fingerprint=keychain.root_fingerprint(), ) + + +def _xpub_descriptor( + node_xpub: str, + address_n: list[int], + script_type: InputScriptType, + fingerprint: int, +) -> str: + from trezor.enums import InputScriptType + + from apps.common import paths + + from .common import descriptor_checksum + + if script_type != InputScriptType.SPENDTAPROOT: + raise ValueError("Unsupported script type.") + path = paths.address_n_to_str(address_n) + descriptor = f"tr([{fingerprint:08x}{path[1:]}]{node_xpub}/<0;1>/*)" + checksum = descriptor_checksum(descriptor) + return f"{descriptor}#{checksum}" diff --git a/tests/input_flows.py b/tests/input_flows.py index f1a590fbc..3373f0b1c 100644 --- a/tests/input_flows.py +++ b/tests/input_flows.py @@ -479,6 +479,7 @@ class InputFlowShowXpubQRCode(InputFlowBase): # Go through details and back self.debug.press_right(wait=True) self.debug.press_right(wait=True) + self.debug.press_right(wait=True) self.debug.press_left(wait=True) self.debug.press_left(wait=True) assert br.pages is not None diff --git a/tests/ui_tests/fixtures.json b/tests/ui_tests/fixtures.json index 03663df45..4debaf0a5 100644 --- a/tests/ui_tests/fixtures.json +++ b/tests/ui_tests/fixtures.json @@ -809,24 +809,24 @@ "TR_bitcoin-test_bcash.py::test_send_bch_multisig_wrongchange": "fa268b2481cce18a041c8f8bf773f16cbfed6ad372a89c7d7220a2de3aa9042e", "TR_bitcoin-test_bcash.py::test_send_bch_nochange": "395635f081e0c9bdf3f6de9a1540d9211c3a1d68665d8ac13ffb8c236add0a3b", "TR_bitcoin-test_bcash.py::test_send_bch_oldaddr": "3957efb1b584f974d8b32523eadb4c18596956b38dec2c85005e7e4f0bf85593", -"TR_bitcoin-test_descriptors.py::test_descriptors[Bitcoin-0-10025-InputScriptType.SPENDTAPROOT--301d7568": "7fb7f797b6fb89460beab4df5fbd5f61cbdcd2931349b8c2bae696bf45195b7c", +"TR_bitcoin-test_descriptors.py::test_descriptors[Bitcoin-0-10025-InputScriptType.SPENDTAPROOT--301d7568": "70524243a1d093df71ce94251a1bdfe8ff82b7ee84c2b13b71c09908be89dbc4", "TR_bitcoin-test_descriptors.py::test_descriptors[Bitcoin-0-44-InputScriptType.SPENDADDRESS-pkh-a1b0211f": "ad9329ebacf27f00e736d1d3d8a33a539512a23fd134806ddfe6da4e4b517d1a", "TR_bitcoin-test_descriptors.py::test_descriptors[Bitcoin-0-49-InputScriptType.SPENDP2SHWITNESS-75f8d49f": "cb4cea77c61cafeece033128c8c050060cba7c64e4ef255dc59b235324bcf213", "TR_bitcoin-test_descriptors.py::test_descriptors[Bitcoin-0-84-InputScriptType.SPENDWITNESS-wpk-cee65569": "0ffab62bd4c51d042e77c23f5569b9b9a46d9aae102f55edf20d7894dc75b17d", -"TR_bitcoin-test_descriptors.py::test_descriptors[Bitcoin-0-86-InputScriptType.SPENDTAPROOT-tr(-6b548a1a": "7d3ad845c22d4b74965e62437e8090a2359ddedd528604e3295cab2527b1f877", +"TR_bitcoin-test_descriptors.py::test_descriptors[Bitcoin-0-86-InputScriptType.SPENDTAPROOT-tr(-6b548a1a": "17a198a8b24035578345b5e85ec307ec8d800a2f343d051a1820ca3121dba696", "TR_bitcoin-test_descriptors.py::test_descriptors[Bitcoin-1-44-InputScriptType.SPENDADDRESS-pkh-37215d1b": "bad6123462cf0f8c9d938ca92ac9841b53221e5152f27bc92959e870d4108f1e", "TR_bitcoin-test_descriptors.py::test_descriptors[Bitcoin-1-49-InputScriptType.SPENDP2SHWITNESS-3ccd985b": "c66f3f30c1a6c809fb8c99a9773c9a9ebea29207c4383f8507db751ba59eb11f", "TR_bitcoin-test_descriptors.py::test_descriptors[Bitcoin-1-84-InputScriptType.SPENDWITNESS-wpk-21c3fa4c": "ab012153490f26746ff9a1b5388f2418bf7c9d98b127217babbeab339245d8f7", 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