pubkey.py 文件源码

def encrypt(self, plaintext, K):
        """Encrypt a piece of data.

        :Parameter plaintext: The piece of data to encrypt.
        :Type plaintext: byte string or long

        :Parameter K: A random parameter required by some algorithms
        :Type K: byte string or long

        :Return: A tuple with two items. Each item is of the same type as the
         plaintext (string or long).
        """
        wasString=0
        if isinstance(plaintext, types.StringType):
            plaintext=bytes_to_long(plaintext) ; wasString=1
        if isinstance(K, types.StringType):
            K=bytes_to_long(K)
        ciphertext=self._encrypt(plaintext, K)
        if wasString: return tuple(map(long_to_bytes, ciphertext))
        else: return ciphertext