US 7,541,920 B2
Alarm/event encryption in an industrial environment
Kevin Tambascio, Lyndhurst, Ohio (US); Kenwood H. Hall, Hudson, Ohio (US); John J. Baier, Mentor, Ohio (US); Eric G. Dorgelo, Port Moody (Canada); Charles M. Rischar, Chardon, Ohio (US); and David K. Johnson, Waukesha, Wis. (US)
Assigned to Rockwell Automation Technologies, Inc., Mayfield Heights, Ohio (US)
Filed on Sep. 29, 2006, as Appl. No. 11/537,413.
Prior Publication US 2008/0079597 A1, Apr. 03, 2008
Int. Cl. G08B 29/00 (2006.01); H04L 9/00 (2006.01); H04K 1/00 (2006.01)
U.S. Cl. 340—506  [340/505; 340/500; 340/525; 380/30; 380/277; 713/182; 726/2] 25 Claims
OG exemplary drawing
 
1. A security system in an industrial automation environment, comprising:
a receiver component that receives an alarm related to a field device;
an encryption component that encrypts the alarm with an encryption algorithm and secures delivery to an external entity; and
an automatic classifier system that facilitates the selection of the encryption algorithm, the classifier determining the necessity and type of encryption.