Polynomial Tope (PT) Key Group Generation Based Received Signal Strength (RSS)

In the process of sending data wirelessly, a high data security system is needed to avoid data leakage. The key generation between wireless devices using Physical Layer Security has become an attractive alternative for wireless device communication security. In this paper, we propose a Polynomial Tope (PT) key group generation which is a group key generation system from several wireless devices using a star topology. The test is carried out in indoor and semi-outdoor environments by utilizing the randomness characteristics of the wireless channel. From the measurement results, RSS is generated which is converted into Difference of Signal Strength (DS) which will be used to generate the key. Based on the test, the average Key Generation Rate (KGR) is 4.2065 bps and the Key Disagreement Rate (KDR) is 0.172 for all scenarios. In addition, the key obtained has been able to meet all the randomness requirements of the National Institute of Standards and Technology (NIST) test with a value above 0.01.