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Electronic Colloquium on Computational Complexity

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REPORTS > KEYWORD > TIME/MEMORY TRADEOFF:
Reports tagged with time/memory tradeoff:
TR20-089 | 8th June 2020
Dror Chawin, Iftach Haitner, Noam Mazor

Lower Bounds on the Time/Memory Tradeoff of Function Inversion

We study time/memory tradeoffs of function inversion: an algorithm, i.e., an inverter, equipped with an $s$-bit advice for a randomly chosen function $f\colon [n] \mapsto [n]$ and using $q$ oracle queries to $f$, tries to invert a randomly chosen output $y$ of $f$ (i.e., to find $x$ such that $f(x)=y$). ... more >>>


TR20-090 | 10th June 2020
Kai-Min Chung, Siyao Guo, Qipeng Liu, Luowen Qian

Tight Quantum Time-Space Tradeoffs for Function Inversion

In function inversion, we are given a function $f: [N] \mapsto [N]$, and want to prepare some advice of size $S$, such that we can efficiently invert any image in time $T$. This is a well studied problem with profound connections to cryptography, data structures, communication complexity, and circuit lower ... more >>>




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