Identifying technological convergenceTechnological convergence among emerging technologies in cybersecurity is a crucial task for advancing science and fostering innovationInnovation. Unlike previous studies that focus on the binary relationship between a paper and the concept it attributes to technology, our approach utilizes attribution scores to enhance the relationships between research papers, combining keywords, citation rates, and collaboration status with specific technological concepts. The proposed method integrates text miningText mining and bibliometricBibliometrics analyses to formulate and predict technological proximity indicesProximity indices for encryption technologiesEncryption technologies using the “OpenAlex” catalog. Our case study findings highlight a significant convergence between blockchain and public-key cryptography, evident in the increasing proximity indicesProximity indices. These results offer valuable strategic insights for those contemplating investments in these domains.