公开(公告)号：US20180351736A1

公开(公告)日：2018-12-06

申请号：US16055660

申请日：2018-08-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hao Lei ,  Wenping Ma

IPC: H04L9/08 ,  H04W12/04 ,  H04L9/32 ,  H04L29/06

CPC classification number: H04L9/08 ,  H04L9/0844 ,  H04L9/3093

Abstract: A session key negotiation method, apparatus, and system, where the session key negotiation method in the present disclosure includes obtaining, by first user equipment, a vector (σB) according to a long-term private key (sB) and a temporary private key (yB) that correspond to the first user equipment, and a received long-term public key (PA) and a received temporary public key (xA) that correspond to second user equipment performing session negotiation with the first user equipment, calculating and obtaining a vB according to the σB using a formula vB=dbl(σB), obtaining a semaphore (vB) according to the vB using a formula vB=vB2, and calculating and obtaining a session key (K) according to the vB using a formula K = [ v _ B ] 2 = [ 2 q  g   v _ B ] , where q is an even number not equal to two.