Modern world achievements have enabled developers to create new products that utilise features such as push notifications, geolocation, and localStorage. These new technologies come with an increased risk of vulnerabilities. We have to protect against security breaches. Developers should be aware about various layers of security, including firewalls, proxy servers, and JVM security.
Java applications can be implemented using application-level security through Spring Security, a component of the Spring framework. Nowadays spring framework is the most popular open-source Java framework for building enterprise applications. Spring framework provides a comprehensive programming and configuration model for modern Java-based applications.
Lets understand the key requirements and key features of Spring Security.
1. Spring Security Description
Spring Security guards our application as a watchman . Spring security is robust also it gives custom built authentication and access-controlled framework. Most popular standard for securing Spring-based applications.
The focus of spring framework is on providing secure authentication and authorization access to Java applications, Spring Security also helps us protect our projects from many common attacks. Customizability is the major advantage of spring security.
2. Core features of Spring Security
The core features of Spring Security are:
- Authentication and Authorization support.
- Prompt finding and prevention of attacks like cross-site request forgery, clickjacking and session fixation.
- Integration with Servlet API.
- Integration with Spring Web MVC (Model-View-Controller) features.
3. About authentication and authorization in Spring Security.
Authentication: As we know applications are open to all users but the user should have necessary privileges or permissions to access the resource in requirement. A person or an entity trying to access a particular resource has to be authenticated as a verified person. Valid credentials like a username and password have to be entered by the user, and then checked to see if they match the credentials stored in a database.Application can grant access to resources for the authenticated user in question, provided they have the necessary authorization. This can be achieved by many different methods of authentication, including biometric authentication, token-based authentication, and multi-factor authentication.
Authorization:
Application can grant the user or entity access to a particular resource or data known as Authorization.
Authorization is used to control access to web requests, individual domains and methods. This prevents unauthorised users from having access to the parts of the resource.
4. What is Spring Security OAuth 2.0
We have a protocol known as OAuth 2.0 .. It is an authorization protocol that enables client applications to access protected resources through an authorised server.
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What is hashing in Spring Security
Hashing is a technology in which a mathematical algorithm is used.. With the help of a hash function that takes a string such as password and produces output known as hash or hash value.
With SHA-256 hash function we can achieve cryptography to ensure data.
6. Security filter chain in Spring Security
Most of the security features are implemented by filter chain through standard servlet filters in web applications.
7.What is JWT
Whatever information we get is verifiable and trustworthy as it has a digital signature.RSA or ECDSA is a technique used to sign JWTs which is a secret or a public/private key pair. using RSA or ECDSA, which are asymmetric algorithms.
JWTs Working Areas:
- Authorization: Authorization is the process of checking the level of access to the resources user has.After the login process , each successive request will include the JWT. JWT tokens permit the user access routes, services, and resources.
- Information exchange: As JET is digitally signed, this is the perfect way of securely transmitting information between applications.
8. What are the prerequisites for Spring Security
- higher runtime environment of JDK.
- EJB or Servlet containers get rid of any special configuration files .Also, Spring Security doesn’t require us to configure a Java Authentication and Authorization Service (JAAS) policy file.
- With spring security shifting of target artifact, such as JAR, WAR, or EAR, from one system to another is allowed and works immediately without delay.
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