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Ron D. Rothblum

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SP1 Hypercube and the Jagged PCSProofs (Simons Institute)2025-07-11
SP1 Hypercube is a multilinear-based zkVM that implements a new jagged polynomial commitment to pack many opcode-specific tables into one sparse encoding…
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Collision-Resistance from Multi-Collision-ResistanceMinimal Complexity Assumptions for Cryptography 20232023-05-01
Shows a non-blackbox transformation that turns a moderately shrinking 3‑MCRH (and separately 4‑MCRH) into a collision‑resistant hash family by using the…
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PCPs and Instance Compression from a Cryptographic LensITCS 20222022-01-31
Assuming subexponential LWE, the work constructs publicly verifiable constant-query succinct PCAs for every bounded-depth NP relation by combining the JKKZ…
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Small Circuits Imply Efficient Arthur-Merlin ProtocolsITCS 20222022-01-31
Assumes a polynomial-size DNF of parities that computes the inner product on > 5/6 accuracy and derives extremely efficient public-coin (AM/R2) protocols…
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Local Proofs Approaching the Witness LengthProofs, Consensus, and Decentralizing Society Reunion 20202020-12-04
Constructs constant-round IOPs for Circuit-SAT with communication arbitrarily close to the circuit size (rate → 1), constant query complexity and quasi-linear…
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Efficient Multiparty Protocols via Log-Depth Threshold FormulaeSecuring Computation (Simons Institute, June 2015)2015-06-08
Presents a reduction that builds n‑party MPC from small‑constant MPC by player emulation: n parties are mapped into a recursive tree where each virtual player…
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