Rolling code: Difference between revisions

Content deleted Content added
Note more sophisticated version of replay attack that does work
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Avoid the implication that the systems are completely secure, especially given lack of a citation
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== Application in RF remote control ==
 
A rolling code transmitter is useful in a security system for providingimproving securethe encryptedsecurity of [[radio frequency]] (RF) transmission, comprising an interleaved trinary bit fixed code and rolling code. A receiver demodulates the encrypted RF transmission and recovers the fixed code and rolling code. Upon comparison of the fixed and rolling codes with stored codes and determiningseeing that thethey signalpass hasa emanatedset from anof authorizedalgorithmic transmitterchecks, a signal is generated to actuate an electric motor to open or close a movable component.{{citation-needed}}
 
== Rolling code vs. fixed code RF remote control ==