Cryptography from sublinear-time average-case hardness of time-bounded Kolmogorov complexity
Cryptography from sublinear-time average-case hardness of time-bounded Kolmogorov complexity
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来自有时间限制的柯尔莫哥洛夫复杂度的亚线性时间平均情况硬度的密码学
DOI:
10.1145/3406325.3451121
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发表时间:
2021
期刊:
影响因子:
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通讯作者:
Pass, Rafael
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文献类型:
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作者:
Liu, Yanyi;Pass, Rafael
Let MKtP[s] be the set of stringsxsuch thatKt(x) ≤s(|x|), whereKt(x) denotes thet-bounded Kolmogorov complexity of the truthtable described byx. Our main theorem shows that for an appropriate notion of mild average-case hardness, for every ε>0, polynomialt(n) ≥ (1+ε)n, and every “nice” classFof super-polynomial functions, the following are equivalent: (i) the existence of some functionT∈Fsuch thatT-hard one-way functions (OWF) exists (with non-uniform security); (ii) the existence of some functionT∈Fsuch that MKtP[T−1] is mildly average-case hard with respect to sublinear-time non-uniform algorithms (with running-timenδfor some 0<δ<1). For instance, existence of subexponentially-hard (resp. quasi-poly-nomially-hard) OWFs is equivalent to mild average-case hardness of MKtP[polylogn] (resp. MKtP[2O(√logn))]) w.r.t. sublinear-time non-uniform algorithms. We additionally note that if we want to deduceT-hard OWFs where security holds w.r.t. uniformT-time probabilistic attackers (i.e., uniformly-secure OWFs), it suffices to assume sublinear time hardness of MKtP w.r.t. uniform probabilistic sublinear-time attackers. We complement this result by proving lower bounds that come surprisingly close to what is required to unconditionally deduce the existence of (uniformly-secure) OWFs: MKtP[polylogn] is worst-case hard w.r.t. uniform probabilistic sublinear-time algorithms, and MKtP[n−logn] is mildly average-case hard for allO(t(n)/n3)-time deterministic algorithms.
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DOI:
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发表时间:
2003
期刊:
Journal of computer and system sciences (Print)
影响因子:
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作者:
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通讯作者:
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DOI:
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发表时间:
2013
期刊:
2012 IEEE 27th Conference on Computational Complexity
影响因子:
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作者:
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影响因子:
2.5
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2020
期刊:
Electron. Colloquium Comput. Complex.
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发表时间:
2019
期刊:
Electron. Colloquium Comput. Complex.
影响因子:
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