| # =================================================================== | |
| # | |
| # Copyright (c) 2014, Legrandin <[email protected]> | |
| # All rights reserved. | |
| # | |
| # Redistribution and use in source and binary forms, with or without | |
| # modification, are permitted provided that the following conditions | |
| # are met: | |
| # | |
| # 1. Redistributions of source code must retain the above copyright | |
| # notice, this list of conditions and the following disclaimer. | |
| # 2. Redistributions in binary form must reproduce the above copyright | |
| # notice, this list of conditions and the following disclaimer in | |
| # the documentation and/or other materials provided with the | |
| # distribution. | |
| # | |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
| # FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
| # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
| # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | |
| # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | |
| # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN | |
| # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| # POSSIBILITY OF SUCH DAMAGE. | |
| # =================================================================== | |
| """ | |
| Legacy module for PKCS#1 PSS signatures. | |
| :undocumented: __package__ | |
| """ | |
| import types | |
| from Crypto.Signature import pss | |
| def _pycrypto_verify(self, hash_object, signature): | |
| try: | |
| self._verify(hash_object, signature) | |
| except (ValueError, TypeError): | |
| return False | |
| return True | |
| def new(rsa_key, mgfunc=None, saltLen=None, randfunc=None): | |
| pkcs1 = pss.new(rsa_key, mask_func=mgfunc, | |
| salt_bytes=saltLen, rand_func=randfunc) | |
| pkcs1._verify = pkcs1.verify | |
| pkcs1.verify = types.MethodType(_pycrypto_verify, pkcs1) | |
| return pkcs1 | |