2 # pylint: disable=import-outside-toplevel
4 """Test key management commands."""
8 from testlib import check, util
9 from testlib.log import log
10 from testlib.const import RUN_ACCESS_CHECKS
11 from testlib.feature import Feature
12 from testlib.proc import Tinc
13 from testlib.test import Test
16 TEST_DATA = b"foo bar baz"
19 def try_rsa_keys(priv_path: str, pub_path: str) -> None:
20 """Check that RSA key pair works."""
23 import cryptography # type: ignore
24 from cryptography.hazmat.primitives import hashes, serialization # type: ignore
25 from cryptography.hazmat.primitives.asymmetric import padding # type: ignore
27 log.info("cryptography module missing or broken, skipping key checks")
30 version = cryptography.__version__.split(".", maxsplit=2)
31 if not (int(version[0]) >= 3 and int(version[1]) >= 3):
32 log.info("cryptography module is too old, skipping key check")
35 log.info("loading keys from (%s, %s)", priv_path, pub_path)
36 with open(priv_path, "rb") as priv, open(pub_path, "rb") as pub:
38 serialization.load_pem_private_key(priv.read(), password=None),
39 serialization.load_pem_public_key(pub.read()),
43 mgf=padding.MGF1(hashes.SHA256()), salt_length=padding.PSS.MAX_LENGTH
45 s_hash = hashes.SHA256()
47 log.info("signing sample data %s", TEST_DATA)
48 signature = key_pair[0].sign(TEST_DATA, s_pad, s_hash)
50 log.info("verifying signature %s", signature)
51 key_pair[1].verify(signature, TEST_DATA, s_pad, s_hash)
54 def test_rsa(foo: Tinc) -> None:
55 """Test command 'generate-rsa-keys'."""
57 for key_size in "foobar", "512", "16384":
58 log.info("generate %s-bit RSA key", key_size)
59 _, err = foo.cmd("generate-rsa-keys", key_size, code=1)
60 check.is_in("Invalid key size", err)
62 log.info("generate RSA key with too many arguments")
63 _, err = foo.cmd("generate-rsa-keys", "2048", "4096", code=1)
64 check.is_in("Too many arguments", err)
66 rsa_priv = foo.sub("rsa_key.priv")
67 rsa_pub = foo.sub(f"hosts/{foo}")
69 for key_size in "1024", "1025":
70 log.info("generate %s-bit RSA key", key_size)
71 _, err = foo.cmd("generate-rsa-keys", key_size)
72 check.is_in("Generating 1024 bits", err)
73 check.is_in("generating a weak", err)
74 check.is_in("found and disabled", err)
75 try_rsa_keys(rsa_priv, rsa_pub)
77 for key_size in "2048", "2049":
78 log.info("generate %s-bit RSA key", key_size)
80 _, err = foo.cmd("generate-rsa-keys", key_size)
81 check.is_in("Generating 2048 bits", err)
82 check.file_exists(rsa_priv)
83 try_rsa_keys(rsa_priv, rsa_pub)
85 log.info("check that key is present")
86 key = util.read_text(rsa_priv)
87 check.has_prefix(key, "-----BEGIN RSA PRIVATE KEY-----")
90 log.info("remove access to private key")
92 _, err = foo.cmd("generate-rsa-keys", "1024", code=1)
93 check.is_in("Error opening file", err)
96 def test_rsa_nolegacy(foo: Tinc) -> None:
97 """Test command 'generate-rsa-keys' on a nolegacy build."""
99 log.info("generate RSA key with nolegacy tinc")
100 _, err = foo.cmd("generate-rsa-keys", code=1)
101 check.is_in("Unknown command", err)
104 def test_eddsa(foo: Tinc) -> None:
105 """Test command 'generate-ed25519-keys'."""
107 log.info("generate EC key with too many arguments")
108 _, err = foo.cmd("generate-ed25519-keys", "2048", code=1)
109 check.is_in("Too many arguments", err)
111 log.info("generate and replace EC key")
112 _, err = foo.cmd("generate-ed25519-keys")
113 check.is_in("found and disabled", err)
115 log.info("remove EC key files")
116 ec_priv = foo.sub("ed25519_key.priv")
117 ec_pub = foo.sub(f"hosts/{foo}")
121 log.info("create new EC key files")
122 foo.cmd("generate-ed25519-keys")
123 check.has_prefix(util.read_text(ec_priv), "-----BEGIN ED25519 PRIVATE KEY-----")
124 check.has_prefix(util.read_text(ec_pub), "Ed25519PublicKey")
126 if RUN_ACCESS_CHECKS:
127 log.info("remove access to EC private key file")
129 _, err = foo.cmd("generate-ed25519-keys", code=1)
130 check.is_in("Error opening file", err)
133 def run_tests(foo: Tinc) -> None:
138 if Feature.LEGACY_PROTOCOL in foo.features:
141 test_rsa_nolegacy(foo)
144 with Test("run tests") as context:
145 run_tests(context.node(init=True))