International Association for Cryptologic Research

International Association
for Cryptologic Research

IACR News item: 21 June 2015

Jean-Sebastien Coron, Craig Gentry, Shai Halevi, Tancrede Lepoint, Hemanta K. Maji, Eric Miles, Mariana
ePrint Report ePrint Report
We extend the recent zeroizing attacks of Cheon, Han, Lee, Ryu and Stehle (Eurocrypt\'15) on multilinear maps to settings where no encodings of zero below the maximal level are available. Some of the new attacks apply to the CLT13 scheme (resulting in a total break) while others apply to (a variant of) the GGH13 scheme (resulting in a weak-DL attack). We also note the limits of these zeroizing attacks.

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