From 79bbba08d44e1791ae8724585828ebe2b4d8e6b0 Mon Sep 17 00:00:00 2001 From: Evan Su <48808396+HACKERALERT@users.noreply.github.com> Date: Mon, 22 Mar 2021 12:39:02 -0400 Subject: [PATCH] Delete SHA3_512.py --- audit/SHA3_512.py | 172 ---------------------------------------------- 1 file changed, 172 deletions(-) delete mode 100644 audit/SHA3_512.py diff --git a/audit/SHA3_512.py b/audit/SHA3_512.py deleted file mode 100644 index 792adf4..0000000 --- a/audit/SHA3_512.py +++ /dev/null @@ -1,172 +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 Crypto.Util.py3compat import bord - -from Crypto.Util._raw_api import (load_pycryptodome_raw_lib, - VoidPointer, SmartPointer, - create_string_buffer, - get_raw_buffer, c_size_t, - c_uint8_ptr) - -from Crypto.Hash.keccak import _raw_keccak_lib - -class SHA3_512_Hash(object): - """A SHA3-512 hash object. - Do not instantiate directly. - Use the :func:`new` function. - - :ivar oid: ASN.1 Object ID - :vartype oid: string - - :ivar digest_size: the size in bytes of the resulting hash - :vartype digest_size: integer - """ - - # The size of the resulting hash in bytes. - digest_size = 64 - - # ASN.1 Object ID - oid = "2.16.840.1.101.3.4.2.10" - - # Input block size for HMAC - block_size = 72 - - def __init__(self, data, update_after_digest): - self._update_after_digest = update_after_digest - self._digest_done = False - - state = VoidPointer() - result = _raw_keccak_lib.keccak_init(state.address_of(), - c_size_t(self.digest_size * 2), - 0x06) - if result: - raise ValueError("Error %d while instantiating SHA-3/512" - % result) - self._state = SmartPointer(state.get(), - _raw_keccak_lib.keccak_destroy) - if data: - self.update(data) - - def update(self, data): - """Continue hashing of a message by consuming the next chunk of data. - - Args: - data (byte string/byte array/memoryview): The next chunk of the message being hashed. - """ - - if self._digest_done and not self._update_after_digest: - raise TypeError("You can only call 'digest' or 'hexdigest' on this object") - - result = _raw_keccak_lib.keccak_absorb(self._state.get(), - c_uint8_ptr(data), - c_size_t(len(data))) - if result: - raise ValueError("Error %d while updating SHA-3/512" - % result) - return self - - def digest(self): - - """Return the **binary** (non-printable) digest of the message that has been hashed so far. - - :return: The hash digest, computed over the data processed so far. - Binary form. - :rtype: byte string - """ - - self._digest_done = True - - bfr = create_string_buffer(self.digest_size) - result = _raw_keccak_lib.keccak_digest(self._state.get(), - bfr, - c_size_t(self.digest_size)) - if result: - raise ValueError("Error %d while instantiating SHA-3/512" - % result) - - self._digest_value = get_raw_buffer(bfr) - return self._digest_value - - def hexdigest(self): - """Return the **printable** digest of the message that has been hashed so far. - - :return: The hash digest, computed over the data processed so far. - Hexadecimal encoded. - :rtype: string - """ - - return "".join(["%02x" % bord(x) for x in self.digest()]) - - 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 - """ - - clone = self.new() - result = _raw_keccak_lib.keccak_copy(self._state.get(), - clone._state.get()) - if result: - raise ValueError("Error %d while copying SHA3-512" % result) - return clone - - def new(self, data=None): - """Create a fresh SHA3-521 hash object.""" - - return type(self)(data, self._update_after_digest) - - -def new(*args, **kwargs): - """Create a new hash object. - - Args: - data (byte string/byte array/memoryview): - The very first chunk of the message to hash. - It is equivalent to an early call to :meth:`update`. - update_after_digest (boolean): - Whether :meth:`digest` can be followed by another :meth:`update` - (default: ``False``). - - :Return: A :class:`SHA3_512_Hash` hash object - """ - - data = kwargs.pop("data", None) - update_after_digest = kwargs.pop("update_after_digest", False) - if len(args) == 1: - if data: - raise ValueError("Initial data for hash specified twice") - data = args[0] - - if kwargs: - raise TypeError("Unknown parameters: " + str(kwargs)) - - return SHA3_512_Hash(data, update_after_digest) - -# The size of the resulting hash in bytes. -digest_size = SHA3_512_Hash.digest_size - -# Input block size for HMAC -block_size = 72