To solve the dilemma that a high bit generation rate and a low probability of bit disagreement can't be achieved simultaneously in current physical layer key extraction schemes

a high-speed random key extraction scheme based on vector quantization (HRVQ) which just employs the RSS of Wi-Fi signal is proposed.First

the inconsistent RSS measurements between the two communication parties were reduced by inconsistency removal to achieve low bit disagreement rate.Then

the vector quantization was introduced to accelerate the extraction of bit streams from channel information and achieve high bit generation rate.Last

fuzzy extractor was employed to achieve adequate randomness and zero bit disagreement rate.The result of experiments indicates that our scheme outperforming the best scheme of the state-of-the-art can reach a 284% bit generation rate with a zero bit disagreement rate and a guaranteed randomness.