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Diffstat (limited to 'frozen_deps/Crypto/Hash/hashalgo.py')
| -rw-r--r-- | frozen_deps/Crypto/Hash/hashalgo.py | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/frozen_deps/Crypto/Hash/hashalgo.py b/frozen_deps/Crypto/Hash/hashalgo.py deleted file mode 100644 index b38b3a6..0000000 --- a/frozen_deps/Crypto/Hash/hashalgo.py +++ /dev/null @@ -1,116 +0,0 @@ -# -*- coding: utf-8 -*- -# -# =================================================================== -# The contents of this file are dedicated to the public domain. To -# the extent that dedication to the public domain is not available, -# everyone is granted a worldwide, perpetual, royalty-free, -# non-exclusive license to exercise all rights associated with the -# contents of this file for any purpose whatsoever. -# No rights are reserved. -# -# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, -# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND -# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS -# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN -# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -# SOFTWARE. -# =================================================================== - -from binascii import hexlify - -class HashAlgo: - """A generic class for an abstract cryptographic hash algorithm. - - :undocumented: block_size - """ - - #: The size of the resulting hash in bytes. - digest_size = None - #: The internal block size of the hash algorithm in bytes. - block_size = None - - def __init__(self, hashFactory, data=None): - """Initialize the hash object. - - :Parameters: - hashFactory : callable - An object that will generate the actual hash implementation. - *hashFactory* must have a *new()* method, or must be directly - callable. - data : byte string - The very first chunk of the message to hash. - It is equivalent to an early call to `update()`. - """ - if hasattr(hashFactory, 'new'): - self._hash = hashFactory.new() - else: - self._hash = hashFactory() - if data: - self.update(data) - - def update(self, data): - """Continue hashing of a message by consuming the next chunk of data. - - Repeated calls are equivalent to a single call with the concatenation - of all the arguments. In other words: - - >>> m.update(a); m.update(b) - - is equivalent to: - - >>> m.update(a+b) - - :Parameters: - data : byte string - The next chunk of the message being hashed. - """ - return self._hash.update(data) - - def digest(self): - """Return the **binary** (non-printable) digest of the message that has been hashed so far. - - This method does not change the state of the hash object. - You can continue updating the object after calling this function. - - :Return: A byte string of `digest_size` bytes. It may contain non-ASCII - characters, including null bytes. - """ - return self._hash.digest() - - def hexdigest(self): - """Return the **printable** digest of the message that has been hashed so far. - - This method does not change the state of the hash object. - - :Return: A string of 2* `digest_size` characters. It contains only - hexadecimal ASCII digits. - """ - return self._hash.hexdigest() - - def copy(self): - """Return a copy ("clone") of the hash object. - - The copy will have the same internal state as the original hash - object. - This can be used to efficiently compute the digests of strings that - share a common initial substring. - - :Return: A hash object of the same type - """ - return self._hash.copy() - - def new(self, data=None): - """Return a fresh instance of the hash object. - - Unlike the `copy` method, the internal state of the object is empty. - - :Parameters: - data : byte string - The next chunk of the message being hashed. - - :Return: A hash object of the same type - """ - pass - |