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LPN

Learning Parity with Noise

Recover a binary secret from uniformly random binary linear equations corrupted by independent Bernoulli noise.

Classical · memory coefficient ≤ 1/2

Constant Bernoulli noise; limiting memory coefficient ≤1/2 on the n/log₂n scale

3 results · 1 papers
ClassicalHeuristicUniform random equationslimsup log₂(T) log₂(n) / n
#PUBLICATION / AUTHORSDATETIME BOUNDSPACE BOUNDEVIDENCE
1Dissection-BKWAndre Esser · Felix Heuer · Robert Kübler · Alexander May · Christian SohlerCrypto 2018SourceBibTeX / detailsclassical heuristic LPN time-memory tradeoff tailoring heuristic20182(log₂(7)−1+ε) n/log₂ n2(1/2+ε) n/log₂ nPublishedSource checked
2Dissection-BKWAndre Esser · Felix Heuer · Robert Kübler · Alexander May · Christian SohlerCrypto 2018SourceBibTeX / detailsclassical heuristic LPN time-memory tradeoff20182(((1−2/6) log₂ 7)+ε) n/log₂ n2(log₂(7)/6+ε) n/log₂ nPublishedSource checked
3Dissection-BKWAndre Esser · Felix Heuer · Robert Kübler · Alexander May · Christian SohlerCrypto 2018SourceBibTeX / detailsclassical heuristic LPN time-memory tradeoff20182(log₂(7)+ε) n/log₂ n2(log₂(7)/(7−1)+ε) n/log₂ nPublishedSource checked
Comparison definition & assumptions
Regime
Constant Bernoulli noise; limiting memory coefficient ≤1/2 on the n/log₂n scale
Computation
Classical
Rigor
Heuristic
Instances
Uniform random equations
Cost scale
limsup log₂(T) log₂(n) / n
Parameter
n
Description
Constant Bernoulli noise; memory ≤ 2^{(1/2+o(1)) n/log₂ n}
Comparison rules
Compare the leading time coefficient at the stated subexponential memory cap. The c-sum methods use the Independence Heuristic; tailored rows additionally require the Tailoring Heuristic. Every fixed positive exponent slack is allowed. Quantum rows assume coherent indexed access to the stored list.
Tags
constant noise, time-memory tradeoff, independence heuristic