Immunizing Multilinear Maps Against Zeroizing Attacks

  title={Immunizing Multilinear Maps Against Zeroizing Attacks},
  author={Dan Boneh and David J. Wu and Joe Zimmerman},
  journal={IACR Cryptology ePrint Archive},
In recent work Cheon, Han, Lee, Ryu, and Stehlé presented an attack on the multilinear map of Coron, Lepoint, and Tibouchi (CLT). They show that given many low-level encodings of zero, the CLT multilinear map can be completely broken, recovering the secret factorization of the CLT modulus. The attack is a generalization of the “zeroizing” attack of Garg, Gentry, and Halevi. We first strengthen the attack of Cheon, Han, Lee, Ryu, and Stehlé by showing that CLT can be broken even without low… CONTINUE READING

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