Are you looking to hire a skilled engineer who is proficient in working with JWT? Before you begin the interview process, it is important to have a clear understanding of the fundamentals related to JWT and the type of questions that you will need to ask in order to evaluate a potential candidate. This blog post will provide some tips and industry-standard interview questions to help you identify the right candidate for the job.
JWT stands for JSON Web Token and it is an open standard that defines a secure method of transmitting data between two parties. It is used to securely exchange data and verify the identity of the user making the request, which makes it an essential part of many authentication systems. Additionally, JWT can also be used to store data and share information between the two parties.
By understanding the basics of JWT and having a set of interview questions to ask, you will be able to evaluate potential candidates thoroughly and confidently. This blog post will provide a set of
Spring Security in Spring boot Interview Questions and Answers | Part -1 | Code Decode
Q: What is need for JWT?
Q: What are the advantages of JWT?
Before you go! Take this “Spring Security Interview Questions” interview guide with you
Anything on the web, such as web applications, is exposed to the Internet’s wider environment and is therefore susceptible to security risks. Access to Web pages, files, and other classified resources should only be permitted for authorized personnel. Security typically consists of multiple layers, including firewalls, proxies, JVM security, etc. however, application-level security should also be used if access is to be restricted. Consequently, the Spring Framework’s Spring Security component offers a method for adding a layer of security to Java applications.
A collection of servlet filters known as Spring Security allow Java applications to integrate authentication and authorization functionality. For enterprise applications based on Java EE (Enterprise edition), it is one of the most potent and highly customizable access-control frameworks (security frameworks) that offers authentication, authorization, and other security features. The ability of Spring Security to be extended to meet specific needs is where its true power lies. Its primary duty is to authenticate and approve incoming requests for access to any resource, such as static resources, MVC (Model-View-Controller) URLs, rest API endpoints, etc. Take a free mock interview to get immediate feedback and recommendations so you can ace your next tech interview with confidence.
What is JWT?JWT securely transmit trusted information between parties in a compact way.This information can be verified when its been digitally signed, it also holds all users claim likw authorization information so its service provider does not need to access the database.It can be signed or encrypted easily. JWT tokens hold claims that can be encoded as a Json object and are digitally signed by using a private or public key as they are self contained and verifiable as they are digitally signed.
FAQ
What are the 3 parts of JWT?
A JWT has three components, as shown in Figure 1: a header, a payload, and a signature.
What is difference between OAuth and JWT?
JWT defines a token format, whereas OAuth is concerned with defining authorization protocols. OAuth is complicated, whereas JWT is straightforward and simple to learn from the beginning. While JWT can only use client-side storage, OAuth uses both client-side and server-side storage. JWT has limited scope and use cases.
Which algorithm is used for JWT?
Although ES256 (The Elliptic Curve Digital Signature Algorithm (ECDSA) using P-256 and SHA-256) is also a good option, EdDSA has the highest level of security and performance. The option that is supported by the majority of technology stacks and is the most popular is RS256 (RSASSA-PKCS1-v1_5 using SHA-256).
What are the three types of claims uses in JWT?
There are three types of claims: “registered,” “public,” and “private. The official IANA Registry contains a list of registered and public claims. A JWT can also include any additional custom claims; these are referred to as “private claims.” “.
