pubkey.py 文件源码

def blind(self, M, B):
        """Blind a message to prevent certain side-channel attacks.

        :Parameter M: The message to blind.
        :Type M: byte string or long

        :Parameter B: Blinding factor.
        :Type B: byte string or long

        :Return: A byte string if M was so. A long otherwise.
        """
        wasString=0
        if isinstance(M, types.StringType):
            M=bytes_to_long(M) ; wasString=1
        if isinstance(B, types.StringType): B=bytes_to_long(B)
        blindedmessage=self._blind(M, B)
        if wasString: return long_to_bytes(blindedmessage)
        else: return blindedmessage