mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-22 22:38:08 +00:00
80 lines
3.1 KiB
Python
80 lines
3.1 KiB
Python
from common import *
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from trezor import config, utils
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from trezor import log
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if utils.USE_THP:
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from apps.thp import credential_manager
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from trezor.messages import ThpCredentialMetadata
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def _issue_credential(host_name: str, host_static_pubkey: bytes) -> bytes:
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metadata = ThpCredentialMetadata(host_name=host_name)
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return credential_manager.issue_credential(host_static_pubkey, metadata)
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def _dummy_log(name: str, msg: str, *args):
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pass
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log.debug = _dummy_log
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DUMMY_KEY_1 = b"\x00\x00"
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DUMMY_KEY_2 = b"\xff\xff"
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HOST_NAME_1 = "host_name"
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HOST_NAME_2 = "different host_name"
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@unittest.skipUnless(utils.USE_THP, "only needed for THP")
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class TestTrezorHostProtocolCredentialManager(unittest.TestCase):
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def setUp(self):
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config.init()
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config.wipe()
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def test_derive_cred_auth_key(self):
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key1 = credential_manager.derive_cred_auth_key()
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key2 = credential_manager.derive_cred_auth_key()
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self.assertEqual(len(key1), 32)
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self.assertEqual(key1, key2)
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def test_invalidate_cred_auth_key(self):
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key1 = credential_manager.derive_cred_auth_key()
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credential_manager.invalidate_cred_auth_key()
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key2 = credential_manager.derive_cred_auth_key()
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self.assertNotEqual(key1, key2)
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def test_credentials(self):
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cred_1 = _issue_credential(HOST_NAME_1, DUMMY_KEY_1)
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cred_2 = _issue_credential(HOST_NAME_1, DUMMY_KEY_1)
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self.assertEqual(cred_1, cred_2)
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cred_3 = _issue_credential(HOST_NAME_2, DUMMY_KEY_1)
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self.assertNotEqual(cred_1, cred_3)
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self.assertTrue(credential_manager.validate_credential(cred_1, DUMMY_KEY_1))
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self.assertTrue(credential_manager.validate_credential(cred_3, DUMMY_KEY_1))
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self.assertFalse(credential_manager.validate_credential(cred_1, DUMMY_KEY_2))
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credential_manager.invalidate_cred_auth_key()
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cred_4 = _issue_credential(HOST_NAME_1, DUMMY_KEY_1)
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self.assertNotEqual(cred_1, cred_4)
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self.assertFalse(credential_manager.validate_credential(cred_1, DUMMY_KEY_1))
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self.assertFalse(credential_manager.validate_credential(cred_3, DUMMY_KEY_1))
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self.assertTrue(credential_manager.validate_credential(cred_4, DUMMY_KEY_1))
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def test_protobuf_encoding(self):
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"""
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If the protobuf encoding of credentials changes in the future, this
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test should be able to catch it.
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When the test fails, it might be necessary to create custom parser
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of credentials to ensure that credentials remain valid after FW update.
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"""
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expected = b"\x0a\x0b\x0a\x09\x68\x6f\x73\x74\x5f\x6e\x61\x6d\x65\x12\x20\xf4\x44\x86\x2d\x00\x23\x1d\x02\xf3\x20\xbb\x58\xed\x13\x8f\xc6\x84\x9b\x6b\x73\x7a\x33\x25\xc4\x71\x79\x3b\x45\x15\xe4\x76\x67"
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# Use hard-coded bytes as a "credential auth key" when issuing a credential
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credential_manager.derive_cred_auth_key = lambda: b"\xBE\xEF"
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credential = _issue_credential(HOST_NAME_1, DUMMY_KEY_1)
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self.assertEqual(credential, expected)
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if __name__ == "__main__":
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unittest.main()
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