| 2026 | IWOCA | Cryptographic Applications of Combinatorial Ranking for Integer Compositions. | Gustavo Zambonin, Larissa Gremelmaier Rosa, Ricardo Custdio, Daniel Panario |
| 2024 | ACNS | Automated Issuance of Post-Quantum Certificates: A New Challenge. | Alexandre Augusto Giron, Frederico Schardong, Lucas Pandolfo Perin, Ricardo Custdio, Victor Valle, Vctor Mateu |
| 2024 | ER | The Role-Artifact-Function Framework for Understanding Digital Identity Models. | Frederico Schardong, Ricardo Custdio |
| 2024 | SAC | From Self-Sovereign Identity to Fiduciary Identity: A Journey Towards Greater User Privacy and Usability. | Frederico Schardong, Ricardo Custdio |
| 2022 | CANS | Redacting Blockchain Without Exposing Chameleon Hash Collisions. | Thiago Leucz Astrizi, Ricardo Custdio |
| 2022 | CANS | Post-Quantum Electronic Identity: Adapting OpenID Connect and OAuth 2.0 to the Post-Quantum Era. | Frederico Schardong, Alexandre Augusto Giron, Fernanda Larisa Mller, Ricardo Custdio |
| 2022 | CBMS | Touchless Authentication for Health Professionals: Analyzing the Risks and Proposing Alternatives to Dirty Interfaces. | Chiarelli Arajo Vale, Frederico Schardong, Maurcio de Vasconcelos Barros, Ricardo Custdio |