Securing Spring Boot REST API with Spring Security Digest Authentication

Eric Anicet
6 min readSep 22, 2024

The purpose of this story is to explain how to secure a Spring Boot API using Spring Security Digest Authentication.

· Prerequisites
· Overview
What is Digest Authentication?
Why use Digest Authentication?
Basic Authentication vs. Digest Authentication
· Getting Started
Creating entities
The UserDetailsService
Spring Security configuration
REST Controller
Project structure
· Testing
· Conclusion
· References

Prerequisites

This is the list of all the prerequisites:

  • Spring Boot 3+
  • Maven 3.6.3
  • Java 21
  • Postman / insomnia or any other API testing tool.

Overview

What is Digest Authentication?

Digest Authentication tries to overcome some weaknesses of Basic authentication, specifically by ensuring credentials are…

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