Anti-collusion group key distribution method based on hash algorithm in wsn
An anti-collusion and group key technology, applied in the field of encryption and decryption of wireless sensor networks, can solve problems such as lack of security considerations, insufficient preventive measures, security risks, etc., to ensure forward security and backward security , the effect of improving safety
Active Publication Date: 2018-08-10
SHANDONG ZHONGFU INFORMATION IND
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[0002] With the rapid and vigorous development of the current Internet of Things technology, a large number of service systems based on wireless sensor networks have emerged. However, due to the lack of security considerations in the design of wireless sensor network systems currently on the market, coupled with the particularity of wireless sensor The anti-collusion attack prevention measures of the wireless sensor network group key distribution technology are seriously insufficient, resulting in serious security risks and technical obstacles
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[0040] The present invention will be further described below in conjunction with accompanying drawing.
[0041] like Figure 1-6 As shown, the anti-collusion group key distribution method based on the hash algorithm under the WSN specifically includes the following steps:
[0042] Step 1. The raspberry pie and the coordinator together form a gateway, and the gateway uses a hash algorithm to generate a key chain. The key chain includes two hash key chains, which are forward hash key chain K(sf) and backward hash key chain K(sf) respectively. hash key chain K(bw);
[0043] The key chain is the basis of the anti-collusion and group key generation functions of the whole system, which consists of the forward key chain K(sf) and the backward key chain K(bw). When performing the first hash forward key chain K(sf) and backward key chain K(bw), each will select a random number as a set of hash seeds;
[0044] The generation method of the forward key chain K(sf) is as follows:
[00...
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The invention discloses a collusion-resistant group ley distribution method in a WSN (Wireless Sensor Network) based on a hash algorithm. The collusion-resistant group ley distribution method comprises the following steps that a raspberry Pi and a coordinator constitute a gateway together, wherein the raspberry Pi generates two groups of key data needed for combining this key group and transmits the key data to the coordinator through a serial port, and the coordinator performs data broadcasting on a whole wireless sensor network by means of a broadcast packet; a router, used as a forwarding device, broadcasts broadcast data of the gateway to each node, and forwards upload data of the node to the gateway; the node acquires two groups of data used for generating the group key by acquiring contents broadcasted to the whole wireless sensor network by the gateway, processes the data through a corresponding polynomial and generates the group key, and takes this group key as a secure communication certificate. The collusion-resistant group ley distribution method in the WSN based on the hash algorithm provided by the invention guarantees the forward security and backward security of the key so as to realize the purpose of resisting collusion, improves the safety of group key distribution and the anti-collusion ability of a system under the WSN, and reduces the possibility of successful malicious attacks.
Description
technical field [0001] The present invention relates to encryption and decryption technology of a wireless sensor network, in particular to an anti-collusion group key distribution method based on a hash algorithm under a WSN (Wireless Sensor Network, wireless sensor network). Background technique [0002] With the rapid and vigorous development of the current Internet of Things technology, a large number of service systems based on wireless sensor networks have emerged. However, due to the lack of security considerations in the design of wireless sensor network systems on the market, coupled with the particularity of wireless sensor The anti-collusion attack precautions of the wireless sensor network group key distribution technology are seriously insufficient, resulting in serious security risks and technical obstacles. Therefore, it is urgent to provide a group key distribution system with strong anti-collusion ability to solve this problem. Contents of the invention ...
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IPC IPC(8): H04L29/06H04W84/18
CPCH04L63/062H04W84/18
Inventor 王秋华吕秋云邓智宁刘隽良
Owner SHANDONG ZHONGFU INFORMATION IND