How To Implement Security In Spring Boot Project?

Now a days, almost every client demands for implementation of security feature in real time application. Demand of security feature is very valid to maintain confidentiality, integrity and availability. There are many types of security in the real world but we as a developer will focus on our world which is Application/Software Security. Furthermore, in Application Security, our job is to ensure basically two things. First, only valid user can access the application. Second, If the user is valid, he/she can access only permitted data/information in that application. I consider, there is nothing to explain more about them as you must already be aware of these two terminologies i.e. Authentication & Authorization. You might already have guessed what we will discuss in our current topic ‘How to implement Security in Spring Boot Project?’

In this article, we will start learning with basic fundamentals. Following step by step, we will stop it becoming confident in implementing Security features in a Spring Boot Application. Accordingly, Let’s start discussing about ‘How to implement Security in Spring Boot Project?’ step by step. A Series of tutorials on Spring Boot Security are on Spring Boot Tutorials page.

How To Implement Security In Spring Boot Using UserDetailsService?

In continuation to previous article on two different ways of implementing Spring Security, here in this article we will learn the third way ‘How to implement Security in Spring Boot using UserDetailsService?’. After going through the previous article, I hope we all are very familiar with basics of Security and even the basics of Security in a Spring Boot application. This time we will create a user registration form and save users with their roles into database. Then, based on the user role, we will check the authentication and authorization functionalities with the help of predefined UserDetailsService. To illustrate, we will take some roles into effect and play around them in the whole process to make it crystal clear. Additionally, we will have some pages and restrict them to be accessible by some specific roles only.

Equally important, we will have to create a small MVC web application to make registration process open for users. Users will enter their roles while doing registration. Then we can implement security features on top of it. Let’s start working on our topic ‘How to implement Security in Spring Boot using UserDetailsService?’ accordingly.

How To Implement JWT Authentication In Spring Boot Project?

No one can deny from the fact that Security is a vital feature of a production ready application. Although we can secure one web application using In-memory authentication, JDBC Authentication or via UserDetailsService. But when one application uses the services of other application internally, then implementation of security with webservices concept becomes important. In this situation we secure our application using a token which has a particular period of validity. Further, we are going to learn ‘How to implement JWT Authentication in Spring Boot Project?’ to understand the concept behind JWT(JSON Web Token) Authentication as a whole. As JWT stands for ‘JSON Web Token’, it is clear that the token holds the data in the form of JSON only.

Moreover, unlike aforementioned techniques of authentication, JWT comes under stateless authentication. In brief, it doesn’t have data. Generally, this type of authentication is used in Webservices, horizontal scaling of servers or even in OAuth technique up to some extent. To illustrate the webservice, let’s visualize the process of booking an order from Amazon. Here, the user interacts with Amazon app, whereas Amazon app internally interacts with payment gateway app via a webservice call. Now let’s start discussing about our topic ‘How to implement JWT Authentication in Spring Boot Project?’ and related points.

How To Implement OAuth In Spring Boot Project?

Let’s assume that you want to provide access of your resources to a third party application. How will you ensure that the third party application will not misuse your resources? Once you complete going through this article, you will find a secure way to provide access to your resources. Also, you will learn ‘How to implement OAuth in Spring Boot Project?’ which is what all about. OAuth is a mechanism for providing access to resources in a very secure manner. But it is not related to authentication at all rather authorizations.

For example, You have a bunch of confidential pages stored at Google Drive and you want the document review team to review them and update you with review comments. You might be thinking the easiest solution to send them through email or any other way like file transfer technique etc. But this is not the correct way as I mentioned that these are confidential pages. Hence, we can’t send them through network at all due to security reasons. You have to find a way so that review team access them from Google Drive only. Additionally, the review team should get access to review them and send review comments to you accordingly. We will find all the way to make it possible in this article ‘How to implement OAuth in Spring Boot Project?’.

How To Secure Spring Boot Application By Captcha Validation?

Everyone who is reading this article would have come across captcha validation while doing registration in a website or sometimes by other means. Some websites put a captcha validation in place to get rid of spammers. An application can either be accessed by human being or by a client program. Yes Of course, there is possibility that an Http client program developed by a professional hacker can access your application. Further to fill this security hole we can implement a captcha validation because a program can’t read captcha image. Therefore, as a developer, you should have knowledge of ‘How to secure Spring Boot Application by Captcha Validation?’. More or less, we will learn to implement spring boot captcha.
However, we can implement a captcha concept in a simple java application like servlet based web application, MVC application, Spring MVC etc. Here we will implement it in Spring Boot as it is the most demanding technology these days. Generally, we implement a captcha in Login page or Registration page to safeguard our application from hackers. Here in this article we will implement it in a user registration page in such a way that if a user doesn’t not enter the captcha or enters wrong captcha, registration will not succeed at all. Let’s talk something more about it and then start working on ‘How to secure Spring Boot Application by Captcha Validation?’.

How To Secure Spring Boot Application By Google ReCAPTCHA?

In continuation to previous article on Securing Spring Boot Application by Simple CAPTCHA, here in this article we will discuss about Google reCAPTCHA. Needless to say, reCAPTCHA protects your application or website from fraud and misuse. It uses an advanced risk analysis engine and flexible challenges to keep malicious software out from entering into offensive activities on your website. Meanwhile, allowed users will be able to login, view pages, or create accounts. But fraud users will be blocked. We have already discussed the fundamentals of captcha including it’s definition & types in our previous article. In short, reCAPCHA is a type of captcha security. We will talk all about it in our article ‘How To Secure Spring Boot Application By Google reCAPTCHA?’.

You can block automated software such as bots once you add reCAPTCHA to your application. On the other hand, you can allow your legal users to enter with ease. In the process of reCAPTCHA validation, If you see a green checkmark, You’ve passed the robot test. Then you can carry on with the next step what you were doing. Of course, it’s that easy. Sometimes, it needs some extra info from you to make sure you’re human and not a robot. Then, it asks you to figure out a challenge such as solving the matching images puzzle. Now let’s discuss our topic ‘How To Secure Spring Boot Application By Google reCAPTCHA?’.