WPA shared key cracking system based on GPU cluster

A GPU cluster and shared key technology, which is applied in the field of password cracking, can solve problems such as low cracking speed, poor scalability, and limited cracking ability, and achieve the effects of improving cracking speed, load balancing, and improving cracking performance

Active Publication Date: 2014-03-26
NO 30 INST OF CHINA ELECTRONIC TECH GRP CORP
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Problems solved by technology

[0009] Aiming at the technical problems of low cracking speed, limited cracking ability and poor scalability of the passwo

Method used

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  • WPA shared key cracking system based on GPU cluster
  • WPA shared key cracking system based on GPU cluster
  • WPA shared key cracking system based on GPU cluster

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Embodiment Construction

[0022] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0023] A WLAN contains at least one wireless access point AP and one user (client). The WPA / WPA2-PSK authentication process is a four-step handshake process. The client generates a verification value MIC through the input key, AP name (SSID), user MAC address, random number Nonce and other data and sends it to the AP. Compare with the stored correct MIC value, if they are consistent, the identity authentication will be passed, otherwise it will be rejected. The main difference between WPA and WPA2 is that WPA uses the HMAC-MD5 algorithm in the last step of generating the MIC value, while WPA2 uses the HMAC-SHA1 algorithm. Therefore, the method of the present invention is applicable to WPA and WPA2.

[0024] A GPU cluster is a cluster system based on GPU computing nodes, and its main computing work is completed by the GPU of ea...

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Abstract

The invention relates to the technical field of password cracking, and discloses a WPA shared key cracking system based on a GPU cluster. The WPA shared key cracking system based on the GPU cluster specifically comprises a control node and a plurality of GPU computational nodes. The control node intercepts and obtains a WPA data package, a characteristic value extracting module extracts cracking characteristic values, and a user interaction module of the control node receives a password cracking range defined by a user; a password space partition module partitions password sections of certain ranges to all GPU computational nodes, and sends the password sections to all the corresponding GPU computational nodes; the GPU computational nodes calculate and obtain temporary verification parameters MIC_TMP, a breaking password passphrase is regarded as the shared key when the temporary verification parameters MIC_TMP are identical with a verification parameter MIC value, and password cracking is completed. According to the WPA shared key cracking system based on the GPU cluster, the GPU cluster is adopted to crack a password of a WPA/WPA2-PSK, multi-node GPU clusters are supported, expansion can be carried out properly according to needs, and cracking performance is improved well. Meanwhile, oriented to the heterogeneous characteristic of the GPU clusters, a reliable task dispatching system is designed, load balancing is achieved, and cracking speed is improved.

Description

technical field [0001] The invention relates to the technical field of password cracking, in particular to a GPU cluster-based WPA shared key cracking system. Background technique [0002] In recent years, with the rapid development of mobile terminals such as smart phones and tablet computers, the development of WLAN (Wireless Local Area Network) has also been extremely rapid, and there is even a tendency to replace wired networks as the main way to access the Internet. Therefore, WLAN has also become an important target of investigation and evidence collection. [0003] The WLAN standard IEEE 802.11 stipulates protection schemes for wireless network data: WEP, WPA and WPA2. Among them, WEP is the earliest solution, which has been found to have many loopholes and can be successfully attacked in a short period of time. Therefore, WPA or WPA2 is generally used for WLAN protection now. WPA / WPA2 adopts two identity authentication methods: shared key PSK (Pre-Share Key) authen...

Claims

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Application Information

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IPC IPC(8): H04L9/08
Inventor 吉庆兵于飞兰天张李军
Owner NO 30 INST OF CHINA ELECTRONIC TECH GRP CORP
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