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trezor-firmware/core/tests/test_trezor.crypto.der.py
obrusvit e073e619c9 chore(tests): re-run black and isort on core/tests
isort set to skip the first necessary "from common import *" line. A
better solution would be to get rid of the need of this import in the
future.

[no changelog]
2024-02-22 12:10:12 +01:00

101 lines
3.9 KiB
Python

from common import * # isort:skip
from trezor.crypto import der
class TestCryptoDer(unittest.TestCase):
vectors_seq = [
(
(
"9a0b7be0d4ed3146ee262b42202841834698bb3ee39c24e7437df208b8b70771",
"2b79ab1e7736219387dffe8d615bbdba87e11477104b867ef47afed1a5ede781",
),
"30450221009a0b7be0d4ed3146ee262b42202841834698bb3ee39c24e7437df208b8b7077102202b79ab1e7736219387dffe8d615bbdba87e11477104b867ef47afed1a5ede781",
),
(
(
"6666666666666666666666666666666666666666666666666666666666666666",
"7777777777777777777777777777777777777777777777777777777777777777",
),
"30440220666666666666666666666666666666666666666666666666666666666666666602207777777777777777777777777777777777777777777777777777777777777777",
),
(
(
"6666666666666666666666666666666666666666666666666666666666666666",
"eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
),
"304502206666666666666666666666666666666666666666666666666666666666666666022100eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
),
(
(
"eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
"7777777777777777777777777777777777777777777777777777777777777777",
),
"3045022100eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee02207777777777777777777777777777777777777777777777777777777777777777",
),
(
(
"eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
),
"3046022100eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee022100ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
),
(
(
"0000000000000000000000000000000000000000000000000000000000000066",
"0000000000000000000000000000000000000000000000000000000000000077",
),
"3006020166020177",
),
(
(
"0000000000000000000000000000000000000000000000000000000000000066",
"00000000000000000000000000000000000000000000000000000000000000ee",
),
"3007020166020200ee",
),
(
(
"00000000000000000000000000000000000000000000000000000000000000ee",
"0000000000000000000000000000000000000000000000000000000000000077",
),
"3007020200ee020177",
),
(
(
"00000000000000000000000000000000000000000000000000000000000000ee",
"00000000000000000000000000000000000000000000000000000000000000ff",
),
"3008020200ee020200ff",
),
]
def test_der_encode_seq(self):
for s, d in self.vectors_seq:
s = tuple(unhexlify(i) for i in s)
d = unhexlify(d)
d2 = der.encode_seq(s)
self.assertEqual(d2, d)
s = [i.lstrip(b"\x00") for i in s]
s2 = der.decode_seq(d)
self.assertEqual(s2, s)
def test_der_encode_decode_long_seq(self):
for length in (1, 127, 128, 129, 255, 256, 257):
raw_int = bytes((i & 0xFE) + 1 for i in range(length))
for leading_zeros in range(3):
encoded = der.encode_seq((b"\x00" * leading_zeros + raw_int,))
decoded = der.decode_seq(encoded)
self.assertEqual(decoded, [raw_int])
for zeroes in range(3):
encoded = der.encode_seq((b"\x00" * zeroes,))
decoded = der.decode_seq(encoded)
self.assertEqual(decoded, [b"\x00"])
if __name__ == "__main__":
unittest.main()