NIZKs with an Untrusted CRS: Security in the Face of Parameter Subversion

IACR Cryptology ePrint Archive, Volume 2016, 2016, Pages 777-804.

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Abstract:

Motivated by the subversion of \"trusted\" public parameters in mass-surveillance activities, this paper studies the security of NIZKs in the presence of a maliciously chosen common reference string. We provide definitions for subversion soundness, subversion witness indistinguishability and subversion zero knowledge. We then provide both...More

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