Abstruct-A new model for a room transfer function (RTF) by using common acoustical poles that correspond to resonance properties of a room is proposed. These poles are estimated as the common values of many RTF’s corresponding to different source and receiver positions. Since there is one-to-one correspondence between poles and AR coefficients, these poles are calculated as common AR coefficien...

We propose several new efficient non-interactive zero knowledge (NIZK) arguments in the common reference string model. The final arguments are based on two building blocks, a more efficient version of Lipmaa’s Hadamard product argument from TCC 2012, and a novel shift argument. Based on these two arguments, we speed up the recent range argument by Chaabouni, Lipmaa and Zhang (FC 2012). We also ...

We construct non-interactive zero-knowledge arguments for circuit satisfiability with perfect completeness, perfect zero-knowledge and computational soundness. The non-interactive zero-knowledge arguments have sub-linear size and very efficient public verification. The size of the non-interactive zero-knowledge arguments can even be reduced to a constant number of group elements if we allow the...

Subversion zero knowledge for non-interactive proof systems demands that zero knowledge (ZK) be maintained even when the common reference string (CRS) is chosen maliciously. SNARKs are proof systems with succinct proofs, which are at the core of the cryptocurrency Zcash, whose anonymity relies on ZK-SNARKs; they are also used for ZK contingent payments in Bitcoin. We show that under a plausible...