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author | Alex Gaynor <alex.gaynor@gmail.com> | 2014-04-19 20:31:29 -0700 |
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committer | Alex Gaynor <alex.gaynor@gmail.com> | 2014-04-19 20:31:29 -0700 |
commit | 75db7f4902ffd756f06c14e4328ebeda6a527800 (patch) | |
tree | 2f589a4bffbe05facab0e821d3b07675ba904167 /tests/hazmat | |
parent | e6610ba910e3c7dc0ca55700c27f77c3029c83d3 (diff) | |
parent | 07827ebe994121262ab0d25936c443d81be7f9c4 (diff) | |
download | cryptography-75db7f4902ffd756f06c14e4328ebeda6a527800.tar.gz cryptography-75db7f4902ffd756f06c14e4328ebeda6a527800.tar.bz2 cryptography-75db7f4902ffd756f06c14e4328ebeda6a527800.zip |
Merge pull request #840 from reaperhulk/pkcs1-key-size-checks
some checks for PKCS1 keys being too small for the payload to be signed
Diffstat (limited to 'tests/hazmat')
-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): |