%0 Journal Article %A A. A. Semenov %T The use of backdoors to estimate the hardness of propositional proofs and cryptographic attacks %J Prikladnaya Diskretnaya Matematika. Supplement %D 2023 %P 87-95 %N 16 %I mathdoc %U http://geodesic.mathdoc.fr/item/PDMA_2023_16_a22/ %G ru %F PDMA_2023_16_a22