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-rw-r--r--cryptography/hazmat/backends/openssl/backend.py26
-rw-r--r--cryptography/hazmat/primitives/asymmetric/padding.py13
2 files changed, 1 insertions, 38 deletions
diff --git a/cryptography/hazmat/backends/openssl/backend.py b/cryptography/hazmat/backends/openssl/backend.py
index 27141eca..8b721e84 100644
--- a/cryptography/hazmat/backends/openssl/backend.py
+++ b/cryptography/hazmat/backends/openssl/backend.py
@@ -32,7 +32,7 @@ from cryptography.hazmat.bindings.openssl.binding import Binding
from cryptography.hazmat.primitives import hashes, interfaces
from cryptography.hazmat.primitives.asymmetric import dsa, rsa
from cryptography.hazmat.primitives.asymmetric.padding import (
- MGF1, OAEP, PKCS1v15, PSS
+ MGF1, PKCS1v15, PSS
)
from cryptography.hazmat.primitives.ciphers.algorithms import (
AES, ARC4, Blowfish, CAST5, Camellia, IDEA, SEED, TripleDES
@@ -476,30 +476,6 @@ class Backend(object):
def decrypt_rsa(self, private_key, ciphertext, padding):
if isinstance(padding, PKCS1v15):
padding_enum = self._lib.RSA_PKCS1_PADDING
- elif isinstance(padding, OAEP):
- padding_enum = self._lib.RSA_PKCS1_OAEP_PADDING
- if not isinstance(padding._mgf, MGF1):
- raise UnsupportedAlgorithm(
- "Only MGF1 is supported by this backend",
- _Reasons.UNSUPPORTED_MGF
- )
-
- if not isinstance(padding._mgf._algorithm, hashes.SHA1):
- raise UnsupportedAlgorithm(
- "This backend supports only SHA1 inside MGF1 when "
- "using OAEP",
- _Reasons.UNSUPPORTED_HASH
- )
-
- if padding._label is not None and padding._label != b"":
- raise ValueError("This backend does not support OAEP labels")
-
- if not isinstance(padding._algorithm, hashes.SHA1):
- raise UnsupportedAlgorithm(
- "This backend only supports SHA1 when using OAEP",
- _Reasons.UNSUPPORTED_HASH
- )
-
else:
raise UnsupportedAlgorithm(
"{0} is not supported by this backend".format(
diff --git a/cryptography/hazmat/primitives/asymmetric/padding.py b/cryptography/hazmat/primitives/asymmetric/padding.py
index dcc6fe06..72806a61 100644
--- a/cryptography/hazmat/primitives/asymmetric/padding.py
+++ b/cryptography/hazmat/primitives/asymmetric/padding.py
@@ -54,19 +54,6 @@ class PSS(object):
self._salt_length = salt_length
-@utils.register_interface(interfaces.AsymmetricPadding)
-class OAEP(object):
- name = "EME-OAEP"
-
- def __init__(self, mgf, algorithm, label):
- if not isinstance(algorithm, interfaces.HashAlgorithm):
- raise TypeError("Expected instance of interfaces.HashAlgorithm.")
-
- self._mgf = mgf
- self._algorithm = algorithm
- self._label = label
-
-
class MGF1(object):
MAX_LENGTH = object()