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| author | Paul Kehrer <paul.l.kehrer@gmail.com> | 2014-03-21 19:24:24 -0400 |
|---|---|---|
| committer | Paul Kehrer <paul.l.kehrer@gmail.com> | 2014-04-19 22:16:15 -0500 |
| commit | 95c30fb8c7f72f28ba6460602b080b638b74f19c (patch) | |
| tree | 11646a4ac860e5162806795673572f1560ad1fb8 /tests | |
| parent | e6610ba910e3c7dc0ca55700c27f77c3029c83d3 (diff) | |
| download | cryptography-95c30fb8c7f72f28ba6460602b080b638b74f19c.tar.gz cryptography-95c30fb8c7f72f28ba6460602b080b638b74f19c.tar.bz2 cryptography-95c30fb8c7f72f28ba6460602b080b638b74f19c.zip | |
some checks for PKCS1 keys being too small for the payload to be signed
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/hazmat/primitives/test_rsa.py | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/tests/hazmat/primitives/test_rsa.py b/tests/hazmat/primitives/test_rsa.py index 236a3bb1..1cbd1636 100644 --- a/tests/hazmat/primitives/test_rsa.py +++ b/tests/hazmat/primitives/test_rsa.py @@ -655,6 +655,35 @@ class TestRSASignature(object): private_key.signer(padding.PSS(mgf=DummyMGF()), hashes.SHA1(), backend) + def test_pkcs1_digest_too_large_for_key_size(self, backend): + private_key = rsa.RSAPrivateKey.generate( + public_exponent=65537, + key_size=599, + backend=backend + ) + signer = private_key.signer( + padding.PKCS1v15(), + hashes.SHA512(), + backend + ) + signer.update(b"failure coming") + with pytest.raises(ValueError): + signer.finalize() + + def test_pkcs1_minimum_key_size(self, backend): + private_key = rsa.RSAPrivateKey.generate( + public_exponent=65537, + key_size=745, + backend=backend + ) + signer = private_key.signer( + padding.PKCS1v15(), + hashes.SHA512(), + backend + ) + signer.update(b"no failure") + signer.finalize() + @pytest.mark.rsa class TestRSAVerification(object): |