Mutual information chain rules for security proofs robust against device
imperfections
Mutual information chain rules for security proofs robust against device
imperfections
In this work we derive a number of chain rules for mutual information quantities, suitable for analyzing quantum cryptography with imperfect devices that leak additional information to an adversary. First, we derive a chain rule between smooth min-entropy and smooth max-information, which improves over previous chain rules for characterizing one-shot …