Cloud Architecture

Sep 9, 2026 · Backend Development

Production-Grade Spring Boot API Encryption: RSA + AES-GCM Protocol & Implementation

This article details a production-ready end-to-end encryption protocol for Spring Boot APIs using RSA-OAEP for key wrapping and AES-GCM for payload encryption, covering protocol specification, replay protection with Redis, key rotation strategies, filter-based decryption, testing failure paths, observability, and deployment validation.