yeah, this is interesting to me as well. I first heard of this method about a decade ago. The bibliographic info says:

Achilleas Tsitroulis, Dimitris Lampoudis, Emmanuel Tsekleves. Exposing WPA2 security protocol vulnerabilities. International Journal of Information and Computer Security, 2014; 6 (1): 93 DOI: 10.1504/IJICS.2014.059797

I got on the Inderscience website to see what they charge for a subscription to this journal, but when I clicked the 'Subscription Price' link it hung, and now the whole site is strangely down for me...

Perhaps expensive journals are having trouble finding original content in our culture of openness?