A user authentication and key agreement system and method for the internet of things

A technology of key agreement and user authentication, which is applied in the field of security authentication for communication between users and sensor nodes, can solve problems such as heavy calculation consumption, and achieve the effect of ensuring forward secrecy

Active Publication Date: 2021-11-16
蓝亚(深圳)信息技术有限公司
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Problems solved by technology

[0003] Furthermore, many authentication methods incur heavy computational consumption due to resource-constrained characteristics, including CPU performance, memory capacity, and computing power

Method used

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  • A user authentication and key agreement system and method for the internet of things
  • A user authentication and key agreement system and method for the internet of things
  • A user authentication and key agreement system and method for the internet of things

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specific Embodiment approach

[0043] refer to Figure 1-Figure 3 , the specific embodiments of the present invention are as follows:

[0044] 1. In the most initial situation, each element under the IoT system is initialized. First, generate basic system parameters through a trusted third-party T gateway node, including selecting the group E on the elliptic curve p (a, b), (a, b represent two random numbers on the finite field, p, q are two large prime numbers on the elliptic curve), select three hash functions h, H, H 1 :h,H,H 1 →{0,1} * , choose the message authentication code MAC function and choose the bilinear pair e; choose the random number As the master key of the trusted third party, Represents a set of positive integers, and calculates the system public key Q T =s T P (P is the generator of the group); subsequently, the trusted third party T announces the public parameter set:

[0045] parameters={a,b,p,q,P,Q T ,h,H,H 1 ,MAC,e};

[0046] In addition, the sensor node SN chooses a rand...

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Abstract

The invention requests protection of a user authentication and key agreement system and method oriented to the Internet of Things, and relates to the field of the Internet of Things. Including: a system initialization module, a key generation module and an authentication and key agreement module, which are three parts; wherein, the system initialization module is used for the initialization of the Internet of Things system, gateway nodes, users and sensor nodes; the The key generation module is used to complete the generation of the keys of each participant in the system in the Internet of Things; the authentication and key negotiation module is used to complete mutual authentication and negotiate a mutual authentication between the user and the server when accessing remote sensor node information. common session key. The present invention has the characteristics of connectivity, forward and backward security, session unlinkability, anonymity, etc., and satisfies the requirements of the Internet of Things in terms of security performance and calculation cost.

Description

technical field [0001] The invention belongs to the communication field of the Internet of Things, in particular to a security authentication method for communication between users and sensor nodes in the Internet of Things environment. Background technique [0002] The Internet of Things (IoT) is a huge thing-thing connected network, which can identify, control and centrally manage various things around us through sensors, embedded devices, etc. It opens up a new opportunity for people to connect to sensor devices distributed around them to obtain information. Users can access services provided by smart device applications anywhere and at any time in the Internet of Things. With the development of network technology, many IoT applications are also designed, such as medical services, smart grid devices, smart transportation systems and smart energy, etc., which greatly improve our living conditions. However, the privacy and security of the Internet of Things are also impor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/06H04L9/08H04L9/30H04L9/32H04L29/06H04L29/08
CPCH04L9/0643H04L9/0838H04L9/0866H04L9/0869H04L9/3066H04L9/3242H04L9/3297H04L63/0421H04L63/0869H04L67/12
Inventor 周由胜刘桐
Owner 蓝亚(深圳)信息技术有限公司
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