On 12-06-19 08:51 PM, Jonathan Katz wrote: > Anyone know any technical details about this? From the news reports I've > seen, it's not even clear to me what, exactly, was broken. > > http://www.pcworld.com/businesscenter/article/257902/researchers_set_new_cryptanalysis_world_record_for_pairingbased_cryptography.html >
There is more detail here: http://www.nict.go.jp/en/press/2012/06/18en-1.html See the subsection "Target problem and the solution" about halfway down. The field was GF(3^97) and the curve was y^2=x^3-x+1. The discrete log problem was created using the eta pairing and the constants \pi and e. -James
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