36results about How to "Lower retention rate" patented technology

The application provides a key negotiation method based on a polar code and an electronic device, wherein the method is applied to a key encoding end, and the method comprises the following steps: generating a random sequence and a negotiation key; encoding the random sequence based on a preset cyclic redundancy check generation rule and a polar code encoding algorithm to obtain a first code word; performing an exclusive or operation on the negotiation key and the first code word to generate first information; and sending the first information to a key decoding end, so that the key decoding end decodes the first information to obtain a target key consistent with the negotiation key. The key negotiation method based on the polar code and the electronic device can effectively improve the decoding accuracy, and improve the consistency and overall reliability of the key negotiation.