diff options
Diffstat (limited to 'cryptography/hazmat')
| -rw-r--r-- | cryptography/hazmat/backends/openssl/backend.py | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/cryptography/hazmat/backends/openssl/backend.py b/cryptography/hazmat/backends/openssl/backend.py index f1cd910b..2114cd8f 100644 --- a/cryptography/hazmat/backends/openssl/backend.py +++ b/cryptography/hazmat/backends/openssl/backend.py @@ -475,6 +475,10 @@ class Backend(object): ) def decrypt_rsa(self, private_key, ciphertext, padding): + key_size_bytes = int(math.ceil(private_key.key_size / 8.0)) + if key_size_bytes != len(ciphertext): + raise ValueError("Ciphertext length must be equal to key size.") + return self._enc_dec_rsa(private_key, ciphertext, padding) def encrypt_rsa(self, public_key, plaintext, padding): @@ -514,10 +518,6 @@ class Backend(object): _Reasons.UNSUPPORTED_PADDING ) - key_size_bytes = int(math.ceil(key.key_size / 8.0)) - if key_size_bytes < len(data): - raise ValueError("Data too large for key size") - if self._lib.Cryptography_HAS_PKEY_CTX: return self._enc_dec_rsa_pkey_ctx(key, data, padding_enum) else: |