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# Copyright (c) 2014, Legrandin <helderijs@gmail.com>
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"""
Legacy module for PKCS#1 v1.5 signatures.

:undocumented: __package__
"""

import types

from Crypto.Signature import pkcs1_15

def _pycrypto_verify(self, hash_object, signature):
    try:
        self._verify(hash_object, signature)
    except (ValueError, TypeError):
        return False
    return True

def new(rsa_key):
    pkcs1 = pkcs1_15.new(rsa_key)
    pkcs1._verify = pkcs1.verify
    pkcs1.verify = types.MethodType(_pycrypto_verify, pkcs1)
    return pkcs1