Main Page | See live article | Alphabetical index In telecommunication, the term traffic-flow security has the following meanings: 1. The protection resulting from features, inherent in some cryptoequipment, that conceal the presence of valid messages on a communications circuit; normally achieved by causing the circuit to appear busy at all times. 2. Measures used to conceal the presence of valid messages in an on-line cryptosystem or secure communications system. Note: Encryption of sending and receiving addresses and causing the circuit to appear busy at all times by sending dummy traffic are two methods of traffic-flow security. A more common method is to send a continuous encrypted signal, whether or not traffic is being transmitted. Source: from Federal Standard 1037C and adapted from the Department of Defense Dictionary of Military and Associated Terms This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.