RT Journal Article T1 Toward a Framework for Cost-Effective and Publicly Verifiable Confidential Computations in Blockchain A1 Morales, Daniel A1 Agudo-Ruiz, Isaac A1 López-Muñoz, Francisco Javier K1 Lingüística computacional K1 Informática-Aplicaciones K1 Seguridad informática K1 Redes de ordenadores-Medidas de seguridad AB Blockchain technologies have introduced a compelling paradigm for a new understanding of security through decentralized networks and consensus mechanisms. However, they need all data to be public, which may be unacceptable for use cases such as biometric data processing or sensitive monetary transactions. Therefore, confidentiality is identified as a need in blockchain. Additionally, blockchain can contribute to confidential applications by providing publicly verifiable mechanisms, therefore enhancing security. This work presents a framework for cost-effective and publicly verifiable confidential computations in blockchain, by relying on secure multi-party computation committees and zero-knowledge proofs. Our framework supports arbitrary computations on confidential data enforced by smart contracts. Additionally, staking, incentives, and cheat identification are provided as solutions to enhance trust. We also provide a technical solution to embed secure multi-party computations within smart contracts by using the Promise programming pattern. Finally, a cost analysis is provided to justify the feasibility of the framework compared to other solutions. PB IEEE Xplore YR 2024 FD 2024 LK https://hdl.handle.net/10630/34694 UL https://hdl.handle.net/10630/34694 LA spa NO D. Morales, I. Agudo and J. Lopez, "Toward a Framework for Cost-Effective and Publicly Verifiable Confidential Computations in Blockchain," in IEEE Communications Magazine, doi: 10.1109/MCOM.001.2300839. NO Funding for open access charge: Universidad de Málaga/CBUA DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 21 ene 2026