A scheme based on Proof-of-Download blockchain for Digital Rights Management and Traitor Detection

João Tito do Nascimento Silva; Felipe Z. da N. Costa; João Gondim

doi:10.5753/jbcs.2026.5568

Authors

João Tito do Nascimento Silva University of Brasília https://orcid.org/0009-0004-0328-0404
Felipe Z. da N. Costa Federal University of Pernambuco https://orcid.org/0000-0003-1326-0146
João Gondim University of Brasília https://orcid.org/0000-0002-5873-7502

DOI:

https://doi.org/10.5753/jbcs.2026.5568

Keywords:

blockchain, consensus, distributed systems, digital rights management, traitor detection

Abstract

The licensing of digital assets is an important aspect of modern markets like music and movies. In this context, Digital Rights Management (DRM) and Traitor Detection (TD) comprise a set of tools, techniques, and processes that try to ensure control of the use of licensed media. This work contributes to this area by making it possible for DRM and TD to happen in a public and highly decentralized blockchain under a proposed threat model by developing new cryptographic techniques, which, as shown by the results obtained, are very efficient without requiring expensive hardware.

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Author Biographies

João Tito do Nascimento Silva, University of Brasília

Graduando em Engenharia da Computação, Departamento de Ciência da Computação

Felipe Z. da N. Costa, Federal University of Pernambuco

Ph.D., CIn - Centro de Informática - Universidade Federal de Pernambuco

João Gondim, University of Brasília

Professor, Departamento de Engenharia Elétrica

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