Method for achieving lightweight authentication and key agreement

A lightweight authentication and key agreement technology, applied in the field of lightweight identity authentication and key agreement, to achieve high efficiency, small data volume, and good security
CN103560879AInactive Publication Date: 2014-02-05INST OF INFORMATION ENG CAS
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
INST OF INFORMATION ENG CAS
Publication Date
2014-02-05
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a method for achieving lightweight authentication and key agreement. A long-term shared key K is preset between any two network nodes, a counter CTR is stored in each network node, the encryption algorithm E and the PRNG are achieved in the two network nodes, and an authentication and shared key is built between the two network nodes. The method solves the problem that the existing network authentication technology and the existing key agreement technology are not suitable for the resource-constrained communication environment, and can be efficiently and safely suitable for the Internet of Things or the mobile communication network with a large number of resource-constrained nodes. According to the method, the symmetric cryptography algorithm is used only by four times in the authentication and key agreement process, the lightweight grouping symmetric cryptography algorithm can be used, the length of the required key is small, the encryption and decryption speed is high, bi-directional authentication of the authentication process can be completed only through two times of information interaction, the communication data size is small, and occupied network resources are few.
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Description

technical field

[0001] The invention belongs to the technical field of identity authentication, relates to authentication and key negotiation, and in particular to a method for implementing lightweight identity authentication and key negotiation, which is applicable to fast authentication and shared keys between nodes in a resource-constrained network environment of establishment. technical background

[0002] In a network environment, information exchange is a necessary condition for connecting nodes in the network. In the process of information exchange, it is easy to cause leakage of sensitive information. Therefore, in the process of network communication, it is an important research content to realize the security protection of network communication by defining a set of protocol rules to regulate the network behavior between nodes.

[0003] In the process of network communication, the most basic technical means to protect data from illegal theft is to use encryption m...

Claims

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