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Handle load_pem_public_key ValueError #952

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Merged
merged 2 commits into from
Jun 10, 2024
Merged

Handle load_pem_public_key ValueError #952

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7122d46
Handle load_pem_public_key ValueError
Apr 5, 2024
460e54e
Add test for invalid key errors on prepare_key of an invalid key
Jun 7, 2024
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7 changes: 5 additions & 2 deletions jwt/algorithms.py
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Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,7 @@
)

try:
from cryptography.exceptions import InvalidSignature
from cryptography.exceptions import InvalidSignature, UnsupportedAlgorithm
from cryptography.hazmat.backends import default_backend
from cryptography.hazmat.primitives import hashes
from cryptography.hazmat.primitives.asymmetric import padding
Expand Down Expand Up @@ -343,7 +343,10 @@ def prepare_key(self, key: AllowedRSAKeys | str | bytes) -> AllowedRSAKeys:
RSAPrivateKey, load_pem_private_key(key_bytes, password=None)
)
except ValueError:
return cast(RSAPublicKey, load_pem_public_key(key_bytes))
try:
return cast(RSAPublicKey, load_pem_public_key(key_bytes))
except (ValueError, UnsupportedAlgorithm):
raise InvalidKeyError("Could not parse the provided public key.")

@overload
@staticmethod
Expand Down