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-rw-r--r--src/cryptography/hazmat/backends/interfaces.py16
1 files changed, 16 insertions, 0 deletions
diff --git a/src/cryptography/hazmat/backends/interfaces.py b/src/cryptography/hazmat/backends/interfaces.py
index 4dc879ac..6feb8106 100644
--- a/src/cryptography/hazmat/backends/interfaces.py
+++ b/src/cryptography/hazmat/backends/interfaces.py
@@ -233,6 +233,22 @@ class PEMSerializationBackend(object):
@six.add_metaclass(abc.ABCMeta)
+class DERSerializationBackend(object):
+ @abc.abstractmethod
+ def load_der_private_key(self, data, password):
+ """
+ Loads a priate key from DER encoded data. Uses the provided password
+ if the data is encrypted.
+ """
+
+ @abc.abstractmethod
+ def load_der_public_key(self, data):
+ """
+ Loads a public key from DER encoded data.
+ """
+
+
+@six.add_metaclass(abc.ABCMeta)
class X509Backend(object):
@abc.abstractmethod
def load_pem_x509_certificate(self, data):