2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/125004It is shown that the interactive error correction protocol `CASCADE' should be analyzed taking the correlation between passes and finite length of sequence into account. Furthermore we mention some problems in quantifying the reduction of Renyi entropy by information announced during the error correction process.QCMC 2006 Proceedings ArticleQuantum PhysicsProblems of the CASCADE Protocol and Renyi Entropy Reduction in Classical and Quantum Key Generationtext