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quant-ph2026
Malleability of transformations on the ciphertext in noisy Quantum public key encryption
Pete Rigas
We characterize a noisy variant of a Quantum public encryption protocol recently introduced by Malavolta and Walter which demonstrated that the notion of everlasting security can b…
quant-ph2026
Multiplayer parallel repetition without dependency-breaking and anchoring variables: monotonic, concave amplification
Pete Rigas
We obtain quantitative estimates on the decay of the multiplayer optimal value under parallel repetition. In comparison to a previous work of the author in 2025 (arXiv: 2508.09380)…
quant-ph2026
Eve's forgery probability from her false acceptance probability: interactive authentication, Holevo information and the min-entropy
Pete Rigas
We obtain estimates for Eve's forgery probability, namely the probability that she is able to forge a message which Alice or Bob mistakenly accept over a noisy Quantum channel for…