Tag

Java

Read 11 articles on Java by Ashish Srivastava — practical guides covering implementation patterns, security, and production lessons.

11 posts

May 29, 20269 min readtechnicalFeatured

Building Multi-Factor Authentication with TOTP in Spring Boot

Learn how to secure your Spring Boot applications by integrating TOTP-based Multi-Factor Authentication with Google Authenticator for enhanced security.

May 28, 20267 min readBackendFeatured

Building a Custom Authentication Provider in Spring Security

Learn how to construct a custom authentication provider in Spring Security to handle specific user validation logic and security requirements.

May 28, 20268 min readBackendFeatured

Building an Identity Gateway with Spring Cloud Gateway

Learn how to secure microservices by building a secure identity gateway using Spring Cloud Gateway, JWT filters, and OAuth2 protocols.

Part 3 · Microservices Security Architecture

May 27, 20269 min readtechnicalFeatured

Implementing Attribute-Based Access Control (ABAC) with Spring Security

Learn how to build dynamic authorization logic with ABAC, Spring Security, OPA, and Rego policies for fine-grained access control in Java applications.

May 26, 20267 min readBackendFeatured

Spring Security Method Security: @PreAuthorize, @Secured, and SpEL

Learn to implement method-level authorization in Spring applications using @PreAuthorize, @Secured, and Spring Expression Language (SpEL) for effective RBAC.

Part 4 · Spring Security Deep Dive Series

May 25, 202610 min readBackendFeatured

Spring Security and GraphQL: Securing GraphQL APIs

Explore essential strategies for securing GraphQL endpoints with Spring Security, including effective authorization patterns and rate limiting techniques.

Part 1 · Secure Backend Architecture Series

May 25, 20269 min readDevelopmentFeatured

Building a Custom UserDetailsService with Spring Security

This guide covers implementing a custom UserDetailsService in Spring Security, focusing on user loading mechanisms and caching strategies for enhanced security.

Part 1 · Machine Identity & DevSecOps Series

May 25, 20269 min readBackendFeatured

Custom Spring Security Filters: Advanced Authentication Patterns

Explore advanced Spring Security extension techniques by building custom filters for API key authentication and complex security chains.

Part 7 · Spring Security Deep Dive Series

May 25, 20268 min readBackendFeatured

Spring Security with Reactive WebFlux: Security for Reactive Applications

Learn how to implement security patterns in reactive Spring applications using WebFlux, including reactive JWT and authentication flows.

Part 1 · Spring Reactive Architecture Series

May 23, 20269 min readDevelopmentFeatured

Keycloak SPI Development: Building Custom Providers

This guide covers building custom providers within Keycloak using the SPI architecture to extend functionality and create effective plugins.

Part 15 · Keycloak Masterclass Series

May 23, 20269 min readDevelopmentFeatured

Keycloak Architecture Deep Dive: Internal Components and Data Flow

Explore the internal mechanics of Keycloak, including its architecture, SPI capabilities, theme system, and data flow patterns for secure identity management.

Part 1 · Keycloak Masterclass Series

#spring-security24 #authentication74 #security71 #backend9 #authorization7 #keycloak33 #microservices5 #spi3

Java

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