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New Tempora-Fusion scheme enables efficient verifiable homomorphic time-lock puzzles

Researchers have introduced Tempora-Fusion, a novel homomorphic time-lock puzzle (TLP) scheme that allows for efficient public verification of both individual puzzle solutions and their homomorphic linear combinations. This system enables clients to generate puzzles independently and later authorize a linear combination with a specific release time, with any party able to verify the result without needing a trusted setup or complex asymmetric-key proof systems. The construction maps independently generated RSA-based puzzles into a common finite field, utilizes oblivious linear evaluation to refresh blinding factors, and embeds a hidden verification structure by encoding messages as polynomials. A prototype implementation demonstrates that verifying an evaluated result takes less than 3 milliseconds. AI

RANK_REASON The cluster contains an academic paper detailing a new cryptographic scheme. [lever_c_demoted from research: ic=1 ai=0.1]

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New Tempora-Fusion scheme enables efficient verifiable homomorphic time-lock puzzles

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The cluster contains an academic paper detailing a new cryptographic scheme. [lever_c_demoted from research: ic=1 ai=0.1]
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  1. arXiv cs.LG TIER_1 English(EN) · Aydin Abadi, Jakub K. Szelag ·

    Tempora-Fusion: Time-Lock Puzzle with Efficient Verifiable Homomorphic Linear Combination

    arXiv:2406.15070v3 Announce Type: replace-cross Abstract: We present Tempora-Fusion, the first homomorphic TLP scheme with efficient public verification of both individual puzzle solutions and homomorphic linear combinations. Tempora-Fusion lets clients generate puzzles independe…