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Tag Archives: Spring Security

Use reCaptcha in a Spring MVC web application

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A CAPTCHA is a program that can generate and grade tests that humans can pass but computer programs ‘cannot‘. One of strategies followed are showing an image to user with distorted text, and user should write text in input area. If showed text is the same as input by user, then we can ‘assure‘ that a human is on computer. A captcha ...

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Spring MVC Customized User Login Logout Implementation Example

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This post describes how to implement a customized user access to an Spring MVC web application (login logout). As a prerequisite, readers are advised to read this post which introduces several Spring Security concepts. The code example is available from Github in the Spring-MVC-Login-Logout directory. It is derived from the Spring MVC with annotations example. Customized Authentication Provider In order ...

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Spring Security: Prevent brute force attack

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Spring Security can do lot of stuff for you. Account blocking, password salt. But what about brute force blocker. That what you have to do by yourself. Fortunately Spring is quite flexible framework so it is not a big deal to configure it. Let me show you little guide how to do this for Grails application. First of all you ...

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Spring Security using API Authentication

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Background While there are many blog posts that detail how to use Spring Security, I often still find it challenging to configure when a problem domain lies outside of the standard LDAP or database authentication. In this post, I’ll describe some simple customizations to Spring Security that enable it to be used with a REST-based API call. Specifically, the use ...

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Spring Security Implementing Custom UserDetails with Hibernate

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Most of the time, we will want to configure our own security access roles in web applications. This is easily achieved in Spring Security. In this article we will see the most simple way to do this. First of all we will need the following tables in the database: CREATE TABLE IF NOT EXISTS `mydb`.`security_role` ( `id` INT(11) NOT NULL ...

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Spring Security – Two Security Realms in one Application

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This blog post is mainly about Spring Security configuration. More specifically it is intending to show how to configure two different security realms in one web application. First security realm is intended for the browser clients. It enables us to log in with in the login page and access protected resources. Second security realm is intended for the REST web ...

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Spring Security Part 1 – Simple Login application with database

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What is Spring Security? Spring security is a framework that provides security solution, handling authentication and authorization at both the web request level and the method level. Spring security handle security in two ways. One is secure web request and other one is restrict access at the URL level. Spring security uses servlet filters. In this post I’m going to ...

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REST + Spring Security session problem

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REST, sessions .. wait. There are no sessions in REST application, right? Well, thats true. If we can avoid sessions we should do that. REST is stateless. The main concern about statelessness is authentication. In usual web applications we were used to store user data in session after authentication. How to solve that if we don’t want to use sessions? ...

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OAuth with Spring Security

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From Wikipedia: OAuth (Open Authentication) is an open standard for authentication. It allows users to share their private resources (e.g. photos, videos, contact lists) stored on one site with another site without having to hand out their credentials, typically username and password. There are a lot of posts talking about OAuth from Client Side, for example how to connect to ...

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