diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cryptography/hazmat/primitives/asymmetric/ec.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/cryptography/hazmat/primitives/asymmetric/ec.py b/src/cryptography/hazmat/primitives/asymmetric/ec.py index 023a2d15..a527387b 100644 --- a/src/cryptography/hazmat/primitives/asymmetric/ec.py +++ b/src/cryptography/hazmat/primitives/asymmetric/ec.py @@ -257,6 +257,9 @@ def derive_private_key(private_value, curve, backend): if not isinstance(private_value, six.integer_types): raise TypeError("private_value must be an integer type.") + if private_value <= 0: + raise ValueError("private_value must be a positive integer.") + if not isinstance(curve, EllipticCurve): raise TypeError("curve must provide the EllipticCurve interface.") |