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https://github.com/trezor/trezor-firmware.git
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680e18a4ba
Following #66 and #317, it would allow deriving confidential addresses and unblinding confidential transactions' outputs.
137 lines
6.0 KiB
Python
137 lines
6.0 KiB
Python
from common import *
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from apps.common import HARDENED, coins
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from apps.common.seed import Keychain, Slip21Node, _path_hardened
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from apps.wallet.sign_tx import scripts, addresses
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from trezor import wire
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from trezor.crypto import bip39
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from trezor.crypto.curve import secp256k1
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class TestKeychain(unittest.TestCase):
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def test_validate_path(self):
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n = [
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["ed25519", 44 | HARDENED, 134 | HARDENED],
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["secp256k1", 44 | HARDENED, 11 | HARDENED],
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]
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k = Keychain(b"", n)
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correct = (
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([44 | HARDENED, 134 | HARDENED], "ed25519"),
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([44 | HARDENED, 11 | HARDENED], "secp256k1"),
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([44 | HARDENED, 11 | HARDENED, 12], "secp256k1"),
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)
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for c in correct:
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self.assertEqual(None, k.validate_path(*c))
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fails = [
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([44 | HARDENED, 134], "ed25519"), # path does not match
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([44 | HARDENED, 134], "secp256k1"), # curve and path does not match
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([44 | HARDENED, 134 | HARDENED], "nist256p"), # curve not included
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([44, 134], "ed25519"), # path does not match (non-hardened items)
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([44 | HARDENED, 134 | HARDENED, 123], "ed25519"), # non-hardened item in ed25519
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([44 | HARDENED, 13 | HARDENED], "secp256k1"), # invalid second item
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]
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for f in fails:
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with self.assertRaises(wire.DataError):
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k.validate_path(*f)
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def test_validate_path_special_ed25519(self):
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n = [
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["ed25519-keccak", 44 | HARDENED, 134 | HARDENED],
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]
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k = Keychain(b"", n)
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correct = (
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([44 | HARDENED, 134 | HARDENED], "ed25519-keccak"),
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)
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for c in correct:
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self.assertEqual(None, k.validate_path(*c))
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fails = [
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([44 | HARDENED, 134 | HARDENED, 1], "ed25519-keccak"),
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]
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for f in fails:
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with self.assertRaises(wire.DataError):
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k.validate_path(*f)
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def test_validate_path_empty_namespace(self):
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k = Keychain(b"", [["secp256k1"]])
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correct = (
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([], "secp256k1"),
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([1, 2, 3, 4], "secp256k1"),
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([44 | HARDENED, 11 | HARDENED], "secp256k1"),
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([44 | HARDENED, 11 | HARDENED, 12], "secp256k1"),
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)
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for c in correct:
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self.assertEqual(None, k.validate_path(*c))
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with self.assertRaises(wire.DataError):
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k.validate_path([1, 2, 3, 4], "ed25519")
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k.validate_path([], "ed25519")
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def test_path_hardened(self):
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self.assertTrue(_path_hardened([44 | HARDENED, 1 | HARDENED, 0 | HARDENED]))
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self.assertTrue(_path_hardened([0 | HARDENED, ]))
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self.assertFalse(_path_hardened([44, 44 | HARDENED, 0 | HARDENED]))
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self.assertFalse(_path_hardened([0, ]))
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self.assertFalse(_path_hardened([44 | HARDENED, 1 | HARDENED, 0 | HARDENED, 0 | HARDENED, 0]))
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def test_slip21(self):
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seed = bip39.seed(' '.join(['all'] * 12), '')
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node1 = Slip21Node(seed)
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node2 = node1.clone()
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keychain = Keychain(seed, [["slip21", b"SLIP-0021"]])
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# Key(m)
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KEY_M = unhexlify(b"dbf12b44133eaab506a740f6565cc117228cbf1dd70635cfa8ddfdc9af734756")
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self.assertEqual(node1.key(), KEY_M)
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# Key(m/"SLIP-0021")
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KEY_M_SLIP0021 = unhexlify(b"1d065e3ac1bbe5c7fad32cf2305f7d709dc070d672044a19e610c77cdf33de0d")
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node1.derive_path([b"SLIP-0021"])
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self.assertEqual(node1.key(), KEY_M_SLIP0021)
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self.assertIsNone(keychain.validate_path([b"SLIP-0021"], "slip21"))
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self.assertEqual(keychain.derive([b"SLIP-0021"], "slip21").key(), KEY_M_SLIP0021)
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# Key(m/"SLIP-0021"/"Master encryption key")
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KEY_M_SLIP0021_MEK = unhexlify(b"ea163130e35bbafdf5ddee97a17b39cef2be4b4f390180d65b54cf05c6a82fde")
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node1.derive_path([b"Master encryption key"])
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self.assertEqual(node1.key(), KEY_M_SLIP0021_MEK)
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self.assertIsNone(keychain.validate_path([b"SLIP-0021", b"Master encryption key"], "slip21"))
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self.assertEqual(keychain.derive([b"SLIP-0021", b"Master encryption key"], "slip21").key(), KEY_M_SLIP0021_MEK)
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# Key(m/"SLIP-0021"/"Authentication key")
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KEY_M_SLIP0021_AK = unhexlify(b"47194e938ab24cc82bfa25f6486ed54bebe79c40ae2a5a32ea6db294d81861a6")
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node2.derive_path([b"SLIP-0021", b"Authentication key"])
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self.assertEqual(node2.key(), KEY_M_SLIP0021_AK)
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self.assertIsNone(keychain.validate_path([b"SLIP-0021", b"Authentication key"], "slip21"))
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self.assertEqual(keychain.derive([b"SLIP-0021", b"Authentication key"], "slip21").key(), KEY_M_SLIP0021_AK)
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# Forbidden paths.
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with self.assertRaises(wire.DataError):
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self.assertFalse(keychain.validate_path([], "slip21"))
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with self.assertRaises(wire.DataError):
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self.assertFalse(keychain.validate_path([b"SLIP-9999", b"Authentication key"], "slip21"))
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with self.assertRaises(wire.DataError):
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keychain.derive([b"SLIP-9999", b"Authentication key"], "slip21").key()
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def test_slip77(self):
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seed = bip39.seed("alcohol woman abuse must during monitor noble actual mixed trade anger aisle", "")
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keychain = Keychain(seed, [["slip21", b"SLIP-0077"], ["secp256k1"]])
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node = keychain.derive([44 | HARDENED, 1 | HARDENED, 0 | HARDENED, 0, 0])
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coin = coins.by_name('Elements')
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pubkey_hash = addresses.ecdsa_hash_pubkey(node.public_key(), coin)
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script = scripts.output_script_p2pkh(pubkey_hash)
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private_key = keychain.derive_slip77_blinding_private_key(script)
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self.assertEqual(private_key, unhexlify(b"26f1dc2c52222394236d76e0809516255cfcca94069fd5187c0f090d18f42ad6"))
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public_key = keychain.derive_slip77_blinding_public_key(script)
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self.assertEqual(public_key, unhexlify(b"03e84cd853fea825bd94f5d2d46580ae0d059c734707fa7a08f5e2f612a51c1acb"))
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self.assertEqual(secp256k1.publickey(private_key), public_key)
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if __name__ == '__main__':
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unittest.main()
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