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Timeline for Is there a quantum-safe time lock?

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May 26, 2020 at 21:59 comment added Nic Other types of VDFs might be able to be repurposed. VDFs based on polynomial GCF likely can be converted to a time lock puzzle, but polynomial GCF's quantum-safety is unknown and will likely be broken in the near future. They also have a polynomial gap but an exponential gap is what we need.
May 26, 2020 at 21:49 comment added Nic SNARG based VDFs can not be repurposed for time locks. In order to derive x from y (if possible at all), while parallelizable, require computations linearly proportional to the computations required to solve the puzzle. SNARGs, by definition, require you to do the computations ahead of time.
May 25, 2020 at 21:32 comment added ckamath Also worth pointing out is time-lock puzzles from succinct randomised encodings (here and here), which potentially are quantum-safe, but far from practical.
May 25, 2020 at 16:55 history answered Mark Schultz-Wu CC BY-SA 4.0