Under the present invention, a state machine representation is used to encrypt/decrypt a message of data values. The state machine representation includes a plurality of nodes, wherein each of the data values are assigned to at least one of the plurality of nodes, wherein each of the plurality of nodes...http://www.google.com.tw/patents/US7151830?utm_source=gb-gplus-share專利 US7151830 - Method, system, program product and state machine representation for encrypting and decrypting a message
