Privacidade Seletiva via ECIES em Arquitetura Híbrida para Registro de Dados Ambientais
Resumo
Sistemas de monitoramento ambiental adotam arquiteturas híbridas baseadas em blockchain e IPFS para mitigar os altos custos de armazenamento on-chain. Contudo, a transparência dessas redes públicas expõe dados ecológicos sensíveis. Para solucionar esse problema, este trabalho propõe uma solução de orquestração assíncrona focado em respostas off-chain confidenciais. A solução emprega o ECIES e recupera chaves nativamente de contas de propriedade externa. Adicionalmente, a serialização RLP viabiliza parâmetros dinâmicos sem exigir atualizações dos contratos. O modelo minimiza custos na EVM e garante confidencialidade seletiva para múltiplos auditores.
Referências
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Benet, J. (2014). IPFS - content addressed, versioned, P2P file system. CoRR, abs/1407.3561.
Coglio, A. (2020). Ethereum’s recursive length prefix in acl2. Electronic Proceedings in Theoretical Computer Science, 327:108–124.
Dash, P. K., Suman, S., Kumar, R., and Divya (2024). Decentralized secure storage and data sharing model via blockchain. In 2024 12th International Conference on Intelligent Systems and Embedded Design (ISED), pages 01–06.
Diffie, W. and Hellman, M. (1976). New directions in cryptography. IEEE Transactions on Information Theory, 22(6):644–654.
Dworkin, M. (2007). Recommendation for block cipher modes of operation: Galois/counter mode (gcm) and gmac. Technical Report SP 800-38D, National Institute of Standards and Technology.
Gayoso Martínez, V., Hernández Á lvarez, F., Hernández Encinas, L., and Sánchez Ávila, C. (2010). A comparison of the standardized versions of ecies. In 2010 Sixth International Conference on Information Assurance and Security, pages 1–4.
Hirlekar, A. V. (2025). A decentralized blue-carbon mrv system and tokenized carbon credit marketplace with gasless transactions, iot telemetry, and ml-driven soc estimation. In 2025 6th International Conference on IoT Based Control Networks and Intelligent Systems (ICICNIS), pages 882–889.
Jayabalan, J. and Jeyanthi, N. (2025). Blockchain and chainlink oracle integration in ehr: Ensuring real-time data integrity and interoperability with ethereum, hyperledger fabric, and ipfs storage. IEEE Access, 13:158044–158056.
Krawczyk, H. and Eronen, P. (2010). Hmac-based extract-and-expand key derivation function (hkdf). RFC 5869.
Leite, G., Alcalde, B., Rossi, T., Oliveira, C., Silva Souza, V., and Melo Junior, W. (2025). Para além do monitoramento: Segurança e conformidade de indicadores ambientais com device-as-a-service e blockchains permissionadas. In Conference: XIII Congresso Brasileiro de Metrologia.
Li, W. (2023). Elliptic curve integrated encryption scheme for secp256k1 in javascript. [link]. Accessed: 2026-03-10.
SECG (2010). Sec 2: Recommended elliptic curve domain parameters, version 2.0. Technical report, Certicom Research.
Sega, C. L., Rossetto, A. G. d. M., Correia, S. D., and Leithardt, V. R. Q. (2022). An architectural proposal to protect the privacy of health data stored in the blockchain. In 2022 17th Iberian Conference on Information Systems and Technologies (CISTI), pages 1–6.
Seidenfad, K., Biermann, J., and Lechner, U. (2023). Carbonedge: Demonstrating blockchain-based monitoring, reporting and verification of greenhouse gas emissions on the edge. In 2023 IEEE International Conference on Blockchain and Cryptocurrency (ICBC), pages 1–3.
Silva, C. I. D., Filho, G. S., De Abreu Borges, M., Barros, A. M. P., Britto, R. V. B. J., Nivaldo M. De C. Junior, and De Souza, D. F. L. (2021). Standing forest coin (sfc).
Silva Souza, V., Madruga, E., and Melo Junior, W. (2025). Métodos de privacidade para dados de medição armazenados em blockchain. In Conference: XIII Congresso Brasileiro de Metrologia.
Uddin, M. N., Hasnat, A. H. M. A., Nasrin, S., Alam, M. S., and Yousuf, M. A. (2021). Secure file sharing system using blockchain, ipfs and pki technologies. In 2021 5th International Conference on Electrical Information and Communication Technology (EICT), pages 1–5.
Vladucu, M.-V., Wu, H., Medina, J., Salehin, K. M., Dong, Z., and Rojas-Cessa, R. (2024). Blockchain on sustainable environmental measures: A review. Blockchains, 2(3):334–365.
Woo, J., Kibert, C. J., Newman, R., Kachi, A. S. K., Fatima, R., and Tian, Y. (2020). A new blockchain digital mrv (measurement, reporting, and verification) architecture for existing building energy performance. In 2020 2nd Conference on Blockchain Research & Applications for Innovative Networks and Services (BRAINS), pages 222–226.
Wood, G. et al. (2014). Ethereum: A secure decentralised generalised transaction ledger. Ethereum project yellow paper, 151(2014):1–42.
Zhang, R., Li, Y., and Fang, L. (2025). Pbtms: A blockchain-based privacy-preserving system for reliable and efficient e-commerce. Electronics, 14(6).
Benet, J. (2014). IPFS - content addressed, versioned, P2P file system. CoRR, abs/1407.3561.
Coglio, A. (2020). Ethereum’s recursive length prefix in acl2. Electronic Proceedings in Theoretical Computer Science, 327:108–124.
Dash, P. K., Suman, S., Kumar, R., and Divya (2024). Decentralized secure storage and data sharing model via blockchain. In 2024 12th International Conference on Intelligent Systems and Embedded Design (ISED), pages 01–06.
Diffie, W. and Hellman, M. (1976). New directions in cryptography. IEEE Transactions on Information Theory, 22(6):644–654.
Dworkin, M. (2007). Recommendation for block cipher modes of operation: Galois/counter mode (gcm) and gmac. Technical Report SP 800-38D, National Institute of Standards and Technology.
Gayoso Martínez, V., Hernández Á lvarez, F., Hernández Encinas, L., and Sánchez Ávila, C. (2010). A comparison of the standardized versions of ecies. In 2010 Sixth International Conference on Information Assurance and Security, pages 1–4.
Hirlekar, A. V. (2025). A decentralized blue-carbon mrv system and tokenized carbon credit marketplace with gasless transactions, iot telemetry, and ml-driven soc estimation. In 2025 6th International Conference on IoT Based Control Networks and Intelligent Systems (ICICNIS), pages 882–889.
Jayabalan, J. and Jeyanthi, N. (2025). Blockchain and chainlink oracle integration in ehr: Ensuring real-time data integrity and interoperability with ethereum, hyperledger fabric, and ipfs storage. IEEE Access, 13:158044–158056.
Krawczyk, H. and Eronen, P. (2010). Hmac-based extract-and-expand key derivation function (hkdf). RFC 5869.
Leite, G., Alcalde, B., Rossi, T., Oliveira, C., Silva Souza, V., and Melo Junior, W. (2025). Para além do monitoramento: Segurança e conformidade de indicadores ambientais com device-as-a-service e blockchains permissionadas. In Conference: XIII Congresso Brasileiro de Metrologia.
Li, W. (2023). Elliptic curve integrated encryption scheme for secp256k1 in javascript. [link]. Accessed: 2026-03-10.
SECG (2010). Sec 2: Recommended elliptic curve domain parameters, version 2.0. Technical report, Certicom Research.
Sega, C. L., Rossetto, A. G. d. M., Correia, S. D., and Leithardt, V. R. Q. (2022). An architectural proposal to protect the privacy of health data stored in the blockchain. In 2022 17th Iberian Conference on Information Systems and Technologies (CISTI), pages 1–6.
Seidenfad, K., Biermann, J., and Lechner, U. (2023). Carbonedge: Demonstrating blockchain-based monitoring, reporting and verification of greenhouse gas emissions on the edge. In 2023 IEEE International Conference on Blockchain and Cryptocurrency (ICBC), pages 1–3.
Silva, C. I. D., Filho, G. S., De Abreu Borges, M., Barros, A. M. P., Britto, R. V. B. J., Nivaldo M. De C. Junior, and De Souza, D. F. L. (2021). Standing forest coin (sfc).
Silva Souza, V., Madruga, E., and Melo Junior, W. (2025). Métodos de privacidade para dados de medição armazenados em blockchain. In Conference: XIII Congresso Brasileiro de Metrologia.
Uddin, M. N., Hasnat, A. H. M. A., Nasrin, S., Alam, M. S., and Yousuf, M. A. (2021). Secure file sharing system using blockchain, ipfs and pki technologies. In 2021 5th International Conference on Electrical Information and Communication Technology (EICT), pages 1–5.
Vladucu, M.-V., Wu, H., Medina, J., Salehin, K. M., Dong, Z., and Rojas-Cessa, R. (2024). Blockchain on sustainable environmental measures: A review. Blockchains, 2(3):334–365.
Woo, J., Kibert, C. J., Newman, R., Kachi, A. S. K., Fatima, R., and Tian, Y. (2020). A new blockchain digital mrv (measurement, reporting, and verification) architecture for existing building energy performance. In 2020 2nd Conference on Blockchain Research & Applications for Innovative Networks and Services (BRAINS), pages 222–226.
Wood, G. et al. (2014). Ethereum: A secure decentralised generalised transaction ledger. Ethereum project yellow paper, 151(2014):1–42.
Zhang, R., Li, Y., and Fang, L. (2025). Pbtms: A blockchain-based privacy-preserving system for reliable and efficient e-commerce. Electronics, 14(6).
Publicado
25/05/2026
Como Citar
SILVA, João Heitor Lopes da; SOUZA, Daniel Faustino Lacerda de; NEVES, Tácito Trindade de Araújo Tiburtino; SOUZA FILHO, Guido Lemos de.
Privacidade Seletiva via ECIES em Arquitetura Híbrida para Registro de Dados Ambientais. In: WORKSHOP EM BLOCKCHAIN: TEORIA, TECNOLOGIAS E APLICAÇÕES (WBLOCKCHAIN), 9. , 2026, Praia do Forte/BA.
Anais [...].
Porto Alegre: Sociedade Brasileira de Computação,
2026
.
p. 112-125.
DOI: https://doi.org/10.5753/wblockchain.2026.22917.
