Class MacOutputStream

    • Constructor Detail

      • MacOutputStream

        public MacOutputStream​(Mac mac)
        Base constructor - specify the MAC algorithm to use.
        Parameters:
        mac - the MAC implementation to use as the basis of the stream.
    • Method Detail

      • write

        public void write​(int b)
                   throws IOException
        Write a single byte to the stream.
        Specified by:
        write in class OutputStream
        Parameters:
        b - the byte value to write.
        Throws:
        IOException - in case of failure.
      • write

        public void write​(byte[] bytes,
                          int off,
                          int len)
                   throws IOException
        Write a block of data of length len starting at offset off in the byte array bytes to the stream.
        Overrides:
        write in class OutputStream
        Parameters:
        bytes - byte array holding the data.
        off - offset into bytes that the data starts at.
        len - the length of the data block to write.
        Throws:
        IOException - in case of failure.
      • getMac

        public byte[] getMac()
        Execute doFinal() and return the calculated MAC.
        Returns:
        the MAC calculated from the output written to the stream.