How to Test the Randomness From the Wireless Channel for Security?

We revisit the traditional framework of wireless secret key generation, where two parties leverage channel randomness to establish a key. The essence in is quantify into bit sequences for generation. Conducting tests on such has been common practice provide confidence validate whether they are random. Interestingly, despite different settings tests, existing studies interpret results same: passing means that indeed In this paper, we investigate how properly test ensure enough security strength and generation efficiency. particular, define an adversary model leverages imperfect search generated key, create guideline set up testing privacy amplification eliminate loss achieve efficient rate. use theoretical analysis comprehensive experiments reveal misuses amplification: (i) no insurance strength, (ii) low efficiency After revision by our guideline, can be eliminated rate increased significantly.