mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-21 05:48:23 +00:00
78 lines
3.1 KiB
Python
78 lines
3.1 KiB
Python
# This file is part of the TREZOR project.
|
|
#
|
|
# Copyright (C) 2012-2016 Marek Palatinus <slush@satoshilabs.com>
|
|
# Copyright (C) 2012-2016 Pavol Rusnak <stick@satoshilabs.com>
|
|
#
|
|
# This library is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU Lesser General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This library is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU Lesser General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU Lesser General Public License
|
|
# along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
from .common import *
|
|
|
|
from hashlib import sha256
|
|
from trezorlib import ed25519raw, ed25519cosi
|
|
|
|
|
|
@pytest.mark.skip_t2
|
|
class TestCosi(TrezorTest):
|
|
|
|
def test_cosi_commit(self):
|
|
self.setup_mnemonic_pin_passphrase()
|
|
|
|
digest = sha256(b'this is a message').digest()
|
|
|
|
c0 = self.client.cosi_commit(self.client.expand_path("10018'/0'"), digest)
|
|
c1 = self.client.cosi_commit(self.client.expand_path("10018'/1'"), digest)
|
|
c2 = self.client.cosi_commit(self.client.expand_path("10018'/2'"), digest)
|
|
|
|
assert c0.pubkey != c1.pubkey
|
|
assert c0.pubkey != c2.pubkey
|
|
assert c1.pubkey != c2.pubkey
|
|
|
|
assert c0.commitment != c1.commitment
|
|
assert c0.commitment != c2.commitment
|
|
assert c1.commitment != c2.commitment
|
|
|
|
digestb = sha256(b'this is a different message').digest()
|
|
|
|
c0b = self.client.cosi_commit(self.client.expand_path("10018'/0'"), digestb)
|
|
c1b = self.client.cosi_commit(self.client.expand_path("10018'/1'"), digestb)
|
|
c2b = self.client.cosi_commit(self.client.expand_path("10018'/2'"), digestb)
|
|
|
|
assert c0.pubkey == c0b.pubkey
|
|
assert c1.pubkey == c1b.pubkey
|
|
assert c2.pubkey == c2b.pubkey
|
|
|
|
assert c0.commitment != c0b.commitment
|
|
assert c1.commitment != c1b.commitment
|
|
assert c2.commitment != c2b.commitment
|
|
|
|
def test_cosi_sign(self):
|
|
self.setup_mnemonic_pin_passphrase()
|
|
|
|
digest = sha256(b'this is a message').digest()
|
|
|
|
c0 = self.client.cosi_commit(self.client.expand_path("10018'/0'"), digest)
|
|
c1 = self.client.cosi_commit(self.client.expand_path("10018'/1'"), digest)
|
|
c2 = self.client.cosi_commit(self.client.expand_path("10018'/2'"), digest)
|
|
|
|
global_pk = ed25519cosi.combine_keys([c0.pubkey, c1.pubkey, c2.pubkey])
|
|
global_R = ed25519cosi.combine_keys([c0.commitment, c1.commitment, c2.commitment])
|
|
|
|
sig0 = self.client.cosi_sign(self.client.expand_path("10018'/0'"), digest, global_R, global_pk)
|
|
sig1 = self.client.cosi_sign(self.client.expand_path("10018'/1'"), digest, global_R, global_pk)
|
|
sig2 = self.client.cosi_sign(self.client.expand_path("10018'/2'"), digest, global_R, global_pk)
|
|
|
|
sig = ed25519cosi.combine_sig(global_R, [sig0.signature, sig1.signature, sig2.signature])
|
|
|
|
ed25519raw.checkvalid(sig, digest, global_pk)
|