diff options
Diffstat (limited to 'cryptography/hazmat/primitives/hashes.py')
| -rw-r--r-- | cryptography/hazmat/primitives/hashes.py | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/cryptography/hazmat/primitives/hashes.py b/cryptography/hazmat/primitives/hashes.py index 35b677b0..04f7620a 100644 --- a/cryptography/hazmat/primitives/hashes.py +++ b/cryptography/hazmat/primitives/hashes.py @@ -13,8 +13,6 @@ from __future__ import absolute_import, division, print_function -import six - from cryptography import utils from cryptography.exceptions import ( AlreadyFinalized, UnsupportedAlgorithm, _Reasons @@ -28,7 +26,7 @@ class Hash(object): def __init__(self, algorithm, backend, ctx=None): if not isinstance(backend, HashBackend): raise UnsupportedAlgorithm( - "Backend object does not implement HashBackend", + "Backend object does not implement HashBackend.", _Reasons.BACKEND_MISSING_INTERFACE ) @@ -45,21 +43,21 @@ class Hash(object): def update(self, data): if self._ctx is None: - raise AlreadyFinalized("Context was already finalized") - if isinstance(data, six.text_type): - raise TypeError("Unicode-objects must be encoded before hashing") + raise AlreadyFinalized("Context was already finalized.") + if not isinstance(data, bytes): + raise TypeError("data must be bytes.") self._ctx.update(data) def copy(self): if self._ctx is None: - raise AlreadyFinalized("Context was already finalized") + raise AlreadyFinalized("Context was already finalized.") return Hash( self.algorithm, backend=self._backend, ctx=self._ctx.copy() ) def finalize(self): if self._ctx is None: - raise AlreadyFinalized("Context was already finalized") + raise AlreadyFinalized("Context was already finalized.") digest = self._ctx.finalize() self._ctx = None return digest |