SHANMUGASUNDARAM SENATHIPATHI. Enhancing API Security in Guidewire PolicyCenter Cloud: Zero Trust with OAuth 2.0, JWT, Keycloak & OpenID Connect. ISCSITR- INTERNATIONAL JOURNAL OF COMPUTER APPLICATIONS (ISCSITR-IJCA), [S. l.], v. 3, n. 01, p. 1–22, 2022. DOI: 10.63397/ISCSITR-IJCA_03_01_001. Disponível em: https://iscsitr.in/index.php/ISCSITR-IJCA/article/view/ISCSITR-IJCA_03_01_001.. Acesso em: 6 dec. 2025.