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https://github.com/trezor/trezor-firmware.git
synced 2024-12-27 00:28:10 +00:00
stellar: accounts are addresses
This commit is contained in:
Tomas Susanka
parent
bcf77bd347
commit
7f767eec46
@ -1,21 +1,36 @@
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from trezor.crypto import base32
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from trezor.wire import ProcessError
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import ustruct
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STELLAR_CURVE = 'ed25519'
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def public_key_from_address(address: str) -> bytes:
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"""Extracts public key from an address
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Stellar address is in format:
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<1-byte version> <32-bytes ed25519 public key> <2-bytes CRC-16 checksum>
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"""
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b = base32.decode(address)
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_crc16_checksum_verify(b[:-2], b[-2:])
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return b[1:-2]
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def address_from_public_key(pubkey: bytes):
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"""Returns the base32-encoded version of public key bytes (G...)"""
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address = bytearray()
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address.append(6 << 3) # version -> 'G'
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address.extend(pubkey)
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address.extend(ustruct.pack("<H", _crc16_checksum(address))) # checksum
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address.extend(_crc16_checksum(bytes(address))) # checksum
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return base32.encode(address)
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def _crc16_checksum(data: bytearray):
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def _crc16_checksum_verify(data: bytes, checksum: bytes):
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if _crc16_checksum(data) != checksum:
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raise ProcessError('Invalid address checksum')
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def _crc16_checksum(data: bytes) -> bytes:
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"""Returns the CRC-16 checksum of bytearray bytes
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Ported from Java implementation at: http://introcs.cs.princeton.edu/java/61data/CRC16CCITT.java.html
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@ -33,4 +48,4 @@ def _crc16_checksum(data: bytearray):
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if c15 ^ bit:
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crc ^= polynomial
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return crc & 0xffff
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return ustruct.pack("<H", crc & 0xffff)
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@ -1,16 +1,15 @@
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from apps.common.confirm import require_confirm, require_hold_to_confirm
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from apps.stellar import consts
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from apps.stellar import helpers
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from trezor import ui
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from trezor.messages import ButtonRequestType
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from trezor.ui.text import Text
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from trezor import utils
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async def require_confirm_init(ctx, pubkey: bytes, network_passphrase: str):
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async def require_confirm_init(ctx, address: str, network_passphrase: str):
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content = Text('Confirm Stellar', ui.ICON_SEND,
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ui.NORMAL, 'Initialize singing with',
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ui.MONO, *split(format_address(pubkey)),
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ui.MONO, *split(address),
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icon_color=ui.GREEN)
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await require_confirm(ctx, content, ButtonRequestType.ConfirmOutput)
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network = get_network_warning(network_passphrase)
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@ -62,10 +61,6 @@ def format_amount(amount: int, ticker=True) -> str:
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return utils.format_amount(amount, consts.AMOUNT_DIVISIBILITY) + t
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def format_address(pubkey: bytes) -> str:
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return helpers.address_from_public_key(pubkey)
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# todo merge with nem
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def split(text):
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return utils.chunks(text, 17)
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@ -1,4 +1,4 @@
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from apps.stellar.layout import split, format_address, format_amount, ui, trim_to_rows, require_confirm
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from apps.stellar.layout import split, format_amount, ui, trim_to_rows, require_confirm
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from apps.stellar import consts
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from trezor.messages import ButtonRequestType
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from trezor.ui.text import Text
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@ -20,7 +20,7 @@ from ubinascii import hexlify
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async def confirm_source_account(ctx, source_account: bytes):
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content = Text('Confirm operation', ui.ICON_CONFIRM,
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ui.BOLD, 'Source account:',
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ui.MONO, *split(format_address(source_account)),
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ui.MONO, *split(source_account),
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icon_color=ui.GREEN)
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await require_confirm(ctx, content, ButtonRequestType.ConfirmOutput)
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@ -33,7 +33,7 @@ async def confirm_allow_trust_op(ctx, op: StellarAllowTrustOp):
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content = Text('Confirm operation', ui.ICON_CONFIRM,
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ui.BOLD, text,
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ui.NORMAL, 'of %s by:' % op.asset_code,
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ui.MONO, *split(trim_to_rows(format_address(op.trusted_account), 3)),
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ui.MONO, *split(trim_to_rows(op.trusted_account, 3)),
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icon_color=ui.GREEN)
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await require_confirm(ctx, content, ButtonRequestType.ConfirmOutput)
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@ -43,7 +43,7 @@ async def confirm_account_merge_op(ctx, op: StellarAccountMergeOp):
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content = Text('Confirm operation', ui.ICON_CONFIRM,
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ui.BOLD, 'Account Merge',
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ui.NORMAL, 'All XLM will be sent to:',
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ui.MONO, *split(trim_to_rows(format_address(op.destination_account), 3)),
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ui.MONO, *split(trim_to_rows(op.destination_account, 3)),
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icon_color=ui.GREEN)
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await require_confirm(ctx, content, ButtonRequestType.ConfirmOutput)
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@ -75,7 +75,7 @@ async def confirm_create_account_op(ctx, op: StellarCreateAccountOp):
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content = Text('Confirm operation', ui.ICON_CONFIRM,
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ui.BOLD, 'Create Account',
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ui.NORMAL, 'with %s' % format_amount(op.starting_balance),
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ui.MONO, *split(trim_to_rows(format_address(op.new_account), 3)),
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ui.MONO, *split(trim_to_rows(op.new_account, 3)),
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icon_color=ui.GREEN)
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await require_confirm(ctx, content, ButtonRequestType.ConfirmOutput)
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@ -137,7 +137,7 @@ async def confirm_path_payment_op(ctx, op: StellarPathPaymentOp):
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content = Text('Confirm operation', ui.ICON_CONFIRM,
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ui.BOLD, 'Path Pay %s' % format_amount(op.destination_amount, ticker=False),
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ui.BOLD, '%s to:' % format_asset_code(op.destination_asset),
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ui.MONO, *split(trim_to_rows(format_address(op.destination_account), 3)),
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ui.MONO, *split(trim_to_rows(op.destination_account, 3)),
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icon_color=ui.GREEN)
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await require_confirm(ctx, content, ButtonRequestType.ConfirmOutput)
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await confirm_asset_issuer(ctx, op.destination_asset)
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@ -157,7 +157,7 @@ async def confirm_payment_op(ctx, op: StellarPaymentOp):
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content = Text('Confirm operation', ui.ICON_CONFIRM,
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ui.BOLD, 'Pay %s' % format_amount(op.amount, ticker=False),
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ui.BOLD, '%s to:' % format_asset_code(op.asset),
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ui.MONO, *split(trim_to_rows(format_address(op.destination_account), 3)),
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ui.MONO, *split(trim_to_rows(op.destination_account, 3)),
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icon_color=ui.GREEN)
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await require_confirm(ctx, content, ButtonRequestType.ConfirmOutput)
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await confirm_asset_issuer(ctx, op.asset)
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@ -167,7 +167,7 @@ async def confirm_set_options_op(ctx, op: StellarSetOptionsOp):
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if op.inflation_destination_account:
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content = Text('Confirm operation', ui.ICON_CONFIRM,
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ui.BOLD, 'Set Inflation Destination',
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ui.MONO, *split(format_address(op.inflation_destination_account)),
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ui.MONO, *split(op.inflation_destination_account),
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icon_color=ui.GREEN)
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await require_confirm(ctx, content, ButtonRequestType.ConfirmOutput)
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if op.clear_flags:
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@ -205,7 +205,7 @@ async def confirm_set_options_op(ctx, op: StellarSetOptionsOp):
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if op.signer_type == consts.SIGN_TYPE_ACCOUNT:
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content = Text('Confirm operation', ui.ICON_CONFIRM,
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ui.BOLD, text % 'acc',
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ui.MONO, *split(format_address(op.signer_key)),
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ui.MONO, *split(op.signer_key),
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icon_color=ui.GREEN)
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await require_confirm(ctx, content, ButtonRequestType.ConfirmOutput)
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elif op.signer_type in (consts.SIGN_TYPE_PRE_AUTH, consts.SIGN_TYPE_HASH):
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@ -259,6 +259,6 @@ async def confirm_asset_issuer(ctx, asset: StellarAssetType):
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return
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content = Text('Confirm issuer', ui.ICON_CONFIRM,
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ui.BOLD, '%s issuer:' % asset.code,
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ui.MONO, *split(format_address(asset.issuer)),
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ui.MONO, *split(asset.issuer),
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icon_color=ui.GREEN)
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await require_confirm(ctx, content, ButtonRequestType.ConfirmOutput)
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@ -135,7 +135,7 @@ def serialize_set_options_op(w, msg: StellarSetOptionsOp):
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writers.write_uint32(w, msg.signer_weight)
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def serialize_account(w, source_account: bytes):
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def serialize_account(w, source_account: str):
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if source_account is None:
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writers.write_bool(w, False)
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return
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@ -1,8 +1,10 @@
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from apps.common import seed
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from apps.stellar import writers
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from apps.stellar.operations import operation
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from apps.stellar import helpers
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from apps.stellar import layout
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from apps.stellar import consts
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from trezor.wire import ProcessError
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from trezor.messages.StellarSignTx import StellarSignTx
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from trezor.messages.StellarTxOpRequest import StellarTxOpRequest
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from trezor.messages.StellarSignedTx import StellarSignedTx
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@ -45,14 +47,15 @@ async def _init(ctx, w: bytearray, pubkey: bytes, msg: StellarSignTx):
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writers.write_bytes(w, network_passphrase_hash)
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writers.write_bytes(w, consts.TX_TYPE)
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writers.write_pubkey(w, pubkey)
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if msg.source_account != pubkey:
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raise ValueError('Stellar: source account does not match address_n')
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address = helpers.address_from_public_key(pubkey)
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writers.write_pubkey(w, address)
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if helpers.public_key_from_address(msg.source_account) != pubkey:
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raise ProcessError('Stellar: source account does not match address_n')
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writers.write_uint32(w, msg.fee)
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writers.write_uint64(w, msg.sequence_number)
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# confirm init
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await layout.require_confirm_init(ctx, pubkey, msg.network_passphrase)
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await layout.require_confirm_init(ctx, address, msg.network_passphrase)
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def _timebounds(w: bytearray, start: int, end: int):
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@ -1,4 +1,5 @@
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import ustruct
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from .helpers import public_key_from_address
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def write_uint32(w, n: int):
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@ -29,7 +30,8 @@ def write_bool(w, val: True):
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write_uint32(w, 0)
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def write_pubkey(w, pubkey: bytes):
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def write_pubkey(w, address: str):
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# first 4 bytes of an address are the type, there's only one type (0)
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write_uint32(w, 0)
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pubkey = public_key_from_address(address)
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write_bytes(w, bytearray(pubkey))
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38
tests/test_apps.stellar.address_to_pubkey.py
Normal file
38
tests/test_apps.stellar.address_to_pubkey.py
Normal file
@ -0,0 +1,38 @@
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from common import *
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from apps.stellar.helpers import address_from_public_key, public_key_from_address
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from trezor.wire import ProcessError
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class TestStellarAddressToPubkey(unittest.TestCase):
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def test_address_to_pubkey(self):
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self.assertEqual(public_key_from_address('GBOVKZBEM2YYLOCDCUXJ4IMRKHN4LCJAE7WEAEA2KF562XFAGDBOB64V'),
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unhexlify('5d55642466b185b843152e9e219151dbc5892027ec40101a517bed5ca030c2e0'))
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self.assertEqual(public_key_from_address('GCN2K2HG53AWX2SP5UHRPMJUUHLJF2XBTGSXROTPWRGAYJCDDP63J2U6'),
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unhexlify('9ba568e6eec16bea4fed0f17b134a1d692eae199a578ba6fb44c0c24431bfdb4'))
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def test_pubkey_to_address(self):
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addr = address_from_public_key(unhexlify('5d55642466b185b843152e9e219151dbc5892027ec40101a517bed5ca030c2e0'))
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self.assertEqual(addr, 'GBOVKZBEM2YYLOCDCUXJ4IMRKHN4LCJAE7WEAEA2KF562XFAGDBOB64V')
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addr = address_from_public_key(unhexlify('9ba568e6eec16bea4fed0f17b134a1d692eae199a578ba6fb44c0c24431bfdb4'))
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self.assertEqual(addr, 'GCN2K2HG53AWX2SP5UHRPMJUUHLJF2XBTGSXROTPWRGAYJCDDP63J2U6')
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def test_both(self):
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pubkey = unhexlify('dfcc77d08588601702e02de2dc603f5c5281bea23baa894ae3b3b4778e5bbe40')
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self.assertEqual(public_key_from_address(address_from_public_key(pubkey)), pubkey)
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pubkey = unhexlify('53214e6155469c32fb882b1b1d94930d5445a78202867b7ddc6a33ad42ff4464')
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self.assertEqual(public_key_from_address(address_from_public_key(pubkey)), pubkey)
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pubkey = unhexlify('5ed4690134e5ef79b290ea1e7a4b8f3b6b3bcf287463c18bfe36baa030e7efbd')
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self.assertEqual(public_key_from_address(address_from_public_key(pubkey)), pubkey)
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def test_invalid_address(self):
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with self.assertRaises(ProcessError):
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public_key_from_address('GCN2K2HG53AWX2SP5UHRPMJUUHLJF2XBTGSXROTPWRGAYJCDDP63J2AA') # invalid checksum
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if __name__ == '__main__':
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unittest.main()
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