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-rw-r--r--cryptography/hazmat/primitives/hashes.py11
-rw-r--r--cryptography/hazmat/primitives/interfaces.py7
2 files changed, 2 insertions, 16 deletions
diff --git a/cryptography/hazmat/primitives/hashes.py b/cryptography/hazmat/primitives/hashes.py
index c71377d7..bee188b3 100644
--- a/cryptography/hazmat/primitives/hashes.py
+++ b/cryptography/hazmat/primitives/hashes.py
@@ -16,8 +16,8 @@ from __future__ import absolute_import, division, print_function
import six
from cryptography import utils
-from cryptography.exceptions import AlreadyFinalized, InvalidSignature
-from cryptography.hazmat.primitives import constant_time, interfaces
+from cryptography.exceptions import AlreadyFinalized
+from cryptography.hazmat.primitives import interfaces
@utils.register_interface(interfaces.HashContext)
@@ -55,13 +55,6 @@ class Hash(object):
self._ctx = None
return digest
- def verify(self, digest):
- if isinstance(digest, six.text_type):
- raise TypeError("Unicode-objects must be encoded before verifying")
- hash_digest = self.finalize()
- if not constant_time.bytes_eq(digest, hash_digest):
- raise InvalidSignature("Digest did not match hash digest.")
-
@utils.register_interface(interfaces.HashAlgorithm)
class SHA1(object):
diff --git a/cryptography/hazmat/primitives/interfaces.py b/cryptography/hazmat/primitives/interfaces.py
index 371701a4..e87c9ca9 100644
--- a/cryptography/hazmat/primitives/interfaces.py
+++ b/cryptography/hazmat/primitives/interfaces.py
@@ -162,10 +162,3 @@ class HashContext(six.with_metaclass(abc.ABCMeta)):
"""
Return a HashContext that is a copy of the current context.
"""
-
- @abc.abstractmethod
- def verify(self, signature):
- """
- Compare hash digest to signature and raises InvalidSignature
- if they are not equal.
- """