In this post under JJWT, I will show with example how to create and parse asymmetric key signed JWT containing claims. Below is the complete code for your reference. Main class 1 package defaultPackage; 2 import java.security.KeyPair; 3 import java.security.PrivateKey; 4 import java.security.PublicKey; 5 import java.util.Date; 6 7 import io.jsonwebtoken.Claims; 8 import io.jsonwebtoken.Jws; 9 import…… Continue reading Creating and Parsing a asymmetric key signed JWT containing claims

In this post under JJWT, I will show with example how to create and parse asymmetric key signed JWT containin payload. The JWT can contain claims or payload. For our example we will use a JWT containing payload. Below is the complete code for your reference Main code 1 package defaultPackage; 2 import java.security.KeyPair; 3…… Continue reading Creating and Parsing a asymmetric key signed JWT containing payload

In this post under JJWT, I will explain with example, how to verify or assert the presence of custom (user created and added) claim in JWT token. JJWT framework provides a method through which1) we can verify whether a custom claim exist in the JWT or not.2) we can verify whether a custom claim’s value…… Continue reading Asserting the presence of a custom claim in JWT

In this post under JJWT, I will explain with example, how to verify or assert the presence of standard claim in JWT token. JJWT framework provides a list of methods through which1) we can verify whether a standard claim exist in the JWT or not.2) we can verify whether a standard claim’s value is equal…… Continue reading Asserting the presence of a standard claim in JWT

In this post under JWT, I will show with example how to create and parse a signed JWT containing payload. As mentioned in previous posts we will use an instance of “JwtBuilder” to construct a JSON Web Token. Below is the code snippet for your reference Snippet 1 1 JwtBuilder jwtBuilder = Jwts.builder();2 3 jwtBuilder.header().add(“alg”,…… Continue reading Creating and Parsing a secret key signed JWT containing payload

In this post under JJWT, I will show with example how to parse unsigned JWT containing plaintext as payload instead of serialized Claims object. As shown in previous post under JJWT, whenever we need to parse a JWT string. We need to create an instance of “JwtParser” as shown below JwtParserBuilder jwtParserBuilder = Jwts.parser(); jwtParserBuilder.unsecured();…… Continue reading Parsing simple unsigned JWT containing plaintext as payload

In this post under JJWT, I will show with example how to generate unsecured JWT containing payload. In previous post under JJWT, I talked about JWT containing claims. So what is the difference between claims and payload. Its simple, payload is noting but any String data, whereas claims is a map. Now with the difference…… Continue reading Creating a simple unsecured JSON Web Token containing payload

In this post under JWT, I will show with example how to create and parse a signed JWT containing claims. As mentioned in previous posts we will use an instance of “JwtBuilder” to construct a JSON Web Token. Below is the code snippet for your recap Snippet 1 1 JwtBuilder jwtBuilder = Jwts.builder();2 3 jwtBuilder.header().add(“alg”,…… Continue reading Creating and Parsing a secret key signed JWT containing claims

In this post under JJWT I will show with example how to check whether a JWT is secured or not. JwtParser class has a “isSigned” method which will figure out whether the JWT is secured or not. All we need is to pass the test JWT string as an argument to this method. This method…… Continue reading Checking whether JWT is secured or not

In this post under JJWT, I will show with example how to parse a simple unsecured JSON Web Token containing claims as payload. Below is the complete main code for your reference Main class 1 package defaultPackage;2 import io.jsonwebtoken.Claims;3 import io.jsonwebtoken.Header;4 import io.jsonwebtoken.Jwt;5 import io.jsonwebtoken.JwtParser;6 import io.jsonwebtoken.JwtParserBuilder;7 import io.jsonwebtoken.Jwts;8 9 public class Example2 {10 public…… Continue reading Parsing simple unsecured JWT containing claims