Subject: SAP-Kyma
As enterprises adopt cloud-native platforms like SAP Kyma for building and extending applications, securing access to these services becomes paramount. Authentication and identity management play a critical role in protecting sensitive data and ensuring authorized access. SAP Identity Authentication Service (IAS), a cloud-based identity provider, offers a robust solution for managing user authentication, single sign-on (SSO), and identity federation.
This article explores how to integrate SAP Kyma with SAP Identity Authentication, enabling secure, seamless access management for Kyma-based applications and services.
SAP IAS is a cloud identity provider offering authentication, user lifecycle management, and federation capabilities. It supports protocols such as OAuth 2.0, OpenID Connect (OIDC), and SAML 2.0, facilitating integration with SAP and non-SAP applications alike.
Key features of SAP IAS include:
When integrating SAP Kyma with SAP IAS, the typical architecture involves:
Use OIDC over OAuth 2.0 for Authentication:
OpenID Connect adds an identity layer, making it suitable for user authentication scenarios.
Secure Client Secrets:
Store client credentials securely using Kubernetes Secrets or Kyma Service Catalog bindings.
Validate Tokens in Backend:
Always validate tokens on the backend to prevent unauthorized access.
Use Scopes and Roles:
Leverage OAuth scopes and IAS user groups/roles for fine-grained authorization.
Implement Refresh Token Handling:
Ensure your clients handle token expiry and refresh securely.
An enterprise extends its SAP S/4HANA system with Kyma-based custom applications for procurement. To secure these applications:
Integrating SAP Kyma with SAP Identity Authentication Service is essential for securing cloud-native applications in the SAP ecosystem. This integration ensures that Kyma extensions and microservices benefit from enterprise-grade authentication, authorization, and identity management capabilities provided by SAP IAS.
By following best practices and leveraging Kyma’s flexible API Gateway and service architecture, organizations can deliver secure, seamless, and compliant user experiences in their cloud-native SAP solutions.