diff options
Diffstat (limited to 'src/cryptography/hazmat/backends/openssl/ec.py')
| -rw-r--r-- | src/cryptography/hazmat/backends/openssl/ec.py | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/cryptography/hazmat/backends/openssl/ec.py b/src/cryptography/hazmat/backends/openssl/ec.py index 56b7893e8..e70c7c943 100644 --- a/src/cryptography/hazmat/backends/openssl/ec.py +++ b/src/cryptography/hazmat/backends/openssl/ec.py @@ -43,7 +43,13 @@ def _ec_key_curve_sn(backend, ec_key): assert group != backend._ffi.NULL nid = backend._lib.EC_GROUP_get_curve_name(group) - assert nid != backend._lib.NID_undef + # The following check is to find EC keys with unnamed curves and raise + # an error for now. + if nid == backend._lib.NID_undef: + raise NotImplementedError( + "ECDSA certificates with unnamed curves are unsupported " + "at this time" + ) curve_name = backend._lib.OBJ_nid2sn(nid) assert curve_name != backend._ffi.NULL |