def authGSSWinRMDecryptMessage(context, encrypted_data, header):
    """
    Decrypts a ciphertext message body with the current Kerberos session key using IOV settings for WinRM

    @param context: The context object returned from L{authGSSClientInit}.
    @param encrypted_data: The ciphertext message to be decrypted.
    @param header: The GSSAPI message header containing the encryption parameters.
    @return: The decrypted message text.
    """
