The Certicom Challenges ECC2-X.
Daniel V. BaileyBrian BaldwinLejla BatinaDaniel J. BernsteinPeter BirknerJoppe W. BosGauthier Van DammeGiacomo de MeulenaerJunfeng FanTim GüneysuFrank K. GürkaynakThorsten KleinjungTanja LangeNele MentensChristof PaarFrancesco RegazzoniPeter SchwabeLeif UhsadelPublished in: IACR Cryptol. ePrint Arch. (2009)