C///

\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// # -*- coding: utf-8 -*- # # Cipher/Blowfish.py : Blowfish # # =================================================================== # 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. # =================================================================== """ Module's constants for the modes of operation supported with Blowfish: :var MODE_ECB: :ref:`Electronic Code Book (ECB) ` :var MODE_CBC: :ref:`Cipher-Block Chaining (CBC) ` :var MODE_CFB: :ref:`Cipher FeedBack (CFB) ` :var MODE_OFB: :ref:`Output FeedBack (OFB) ` :var MODE_CTR: :ref:`CounTer Mode (CTR) ` :var MODE_OPENPGP: :ref:`OpenPGP Mode ` :var MODE_EAX: :ref:`EAX Mode ` """ import sys from Crypto.Cipher import _create_cipher from Crypto.Util._raw_api import (load_pycryptodome_raw_lib, VoidPointer, SmartPointer, c_size_t, c_uint8_ptr) _raw_blowfish_lib = load_pycryptodome_raw_lib( "Crypto.Cipher._raw_blowfish", """ int Blowfish_start_operation(const uint8_t key[], size_t key_len, void **pResult); int Blowfish_encrypt(const void *state, const uint8_t *in, uint8_t *out, size_t data_len); int Blowfish_decrypt(const void *state, const uint8_t *in, uint8_t *out, size_t data_len); int Blowfish_stop_operation(void *state); """ ) def _create_base_cipher(dict_parameters): """This method instantiates and returns a smart pointer to a low-level base cipher. It will absorb named parameters in the process.""" try: key = dict_parameters.pop("key") except KeyError: raise TypeError("Missing 'key' parameter") if len(key) not in key_size: raise ValueError("Incorrect Blowfish key length (%d bytes)" % len(key)) start_operation = _raw_blowfish_lib.Blowfish_start_operation stop_operation = _raw_blowfish_lib.Blowfish_stop_operation void_p = VoidPointer() result = start_operation(c_uint8_ptr(key), c_size_t(len(key)), void_p.address_of()) if result: raise ValueError("Error %X while instantiating the Blowfish cipher" % result) return SmartPointer(void_p.get(), stop_operation) def new(key, mode, *args, **kwargs): """Create a new Blowfish cipher :param key: The secret key to use in the symmetric cipher. Its length can vary from 5 to 56 bytes. :type key: bytes, bytearray, memoryview :param mode: The chaining mode to use for encryption or decryption. :type mode: One of the supported ``MODE_*`` constants :Keyword Arguments: * **iv** (*bytes*, *bytearray*, *memoryview*) -- (Only applicable for ``MODE_CBC``, ``MODE_CFB``, ``MODE_OFB``, and ``MODE_OPENPGP`` modes). The initialization vector to use for encryption or decryption. For ``MODE_CBC``, ``MODE_CFB``, and ``MODE_OFB`` it must be 8 bytes long. For ``MODE_OPENPGP`` mode only, it must be 8 bytes long for encryption and 10 bytes for decryp