A computing system includes data encryption in the data path between a data source and data storage devices. The data encryption may utilize a key which is derived at least in part from an identification code stored in a non-volatile memory. The key may also be derived at least in part from user input...http://www.google.es/patents/US7861094?utm_source=gb-gplus-sharePatente US7861094 - Data security for digital data storage
