Legacy Payments and ISO 8583 Integration

Endava’s Legacy Payments & ISO 8583 Integration Service is a 10-week consulting implementation that provides a secure Azure-based ISO 8583 adapter to bridge modern JSON APIs with legacy core banking systems, ensuring seamless translation, secure TCP/IP connectivity, cryptographic security via Azure Key Vault, and accelerated deployment using proprietary assets.

Highlights:
• Seamless Translation: Convert modern JSON APIs to ISO 8583 financial messaging
• Legacy Connectivity: Bridge cloud-native applications to traditional banking cores
• Secure Protocols: TCP/IP and MACing supported via Azure security services

Connect Your Modern Platform to Legacy Financial Infrastructure
Endava's Legacy Payments & ISO 8583 Integration Service is a specialized professional engagement designed to overcome the integration gap between agile, cloud-native payment systems and traditional financial institutions. Many banks and payment processors still rely on the legacy ISO 8583 standard for transaction messaging. Our service implements a robust and secure ISO 8583 Adapter that acts as a real-time, bidirectional translator between your modern API requests and the specific requirements of your target legacy host.

Expertise in Complex Protocol Translation
We abstract away the complexities of ISO 8583 message parsing, field mapping, and connection protocols. Our team brings deep domain expertise in financial messaging standards. Since ISO 8583 implementations vary by bank, our Discovery phase reverse-engineers and maps your bank's specific "dialect" and bitmaps to ensure 100% data accuracy.

Secure and Auditable Connectivity
The solution is built on a highly secure, containerized architecture that ensures data integrity and authenticity. It manages resilient TCP/IP socket connections to the legacy host over secure Azure networking. Furthermore, we handle stringent cryptographic security measures, integrating tightly with Azure Key Vault (and Azure Dedicated HSM if required) to manage the Message Authentication Codes (MACing) and encryption keys, ensuring trust for every financial transaction.

Accelerated Integration with Proven Assets Leverage Endava's proprietary ISO 8583 Adapter accelerator and our core frameworks for rapid deployment. This comprehensive implementation service significantly reduces the time, technical debt, and risk typically associated with complex banking integrations.

Azure Products Utilized:
• Azure Kubernetes Service (AKS) / Azure Container Apps: Highly available container orchestration for deploying the ISO 8583 translator microservice
• Azure Key Vault: FIPS-validated hardware security modules (HSMs) for storing and utilizing the cryptographic keys required for ISO 8583 MACing (Message Authentication Codes) and data encryption
• Azure VPN Gateway / ExpressRoute: Secure, dedicated, and highly reliable network connectivity routing TCP/IP traffic directly to the legacy bank's on-premises host
• Microsoft Entra ID: Secure identity management for controlling administrative access to the adapter's configuration