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The main cryptographic primitives (Bit Commitment (BC) and Oblivious Transfer (OT) protocols) based on noisy channels have been considered in [1] for asymptotic case. Non-asymptotic behavior of BC protocol has been demonstrated in [2]. The current paper provides stricter asymptotic conditions on Binary Symmetric Channel (BSC) to be feasible OT protocol(More)
We consider a scenario where information hiding (IH) is performed through noisy channels. There may arise different situations but one of the most common is the case where the legal IH channel is superior to the attacker IH channel. If a special randomized encoding is used by legal users then it is possible to hide information in the noisy components of the(More)
Secret key agreement protocol between legal parties based on reconciliation and privacy amplification procedure has been considered in [2]. The so called privacy amplification theorem is used to estimate the amount of Shannon's information leaking to an illegal party (passive eavesdropper) about the final key. We consider a particular case where one of the(More)
We consider a distance bounding protocol that enables the verifying party to determine a practical upper-bound on the physical distance to a proving party. This protocol can protect against so called " mafia frauds " in which a party identifies himself to a verifying party using the third party being aware of it. Another attack on distance bounding protocol(More)
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