As part of our ongoing commitment to best security practices, we have recently rotated the signing keys for our SDK. This means that new patch builds have been released using the new signing key. Let’s walk you through how to upgrade your SDK seamlessly while addressing potential concerns you may have regarding this change.

Understanding the Key Rotation Process

Key rotation is akin to changing the locks on your house. Just as you would replace your front door locks to enhance security, we rotate signing keys to ensure that your data remains protected. While this change won’t disrupt most developers, those with a dependency signature validation step in their build process might encounter a warning stating that previous releases can’t be validated. Thankfully, updating to the latest version will resolve these warnings.

Steps to Upgrade Your SDK

1. Check Your Current Version: Verify which version of the SDK you are currently using.
2. Update Dependency: Depending on your build system, update your dependency as follows:

Maven:

    com.auth0
    java-jwt
    4.4.0


Gradle:
implementation 'com.auth0:java-jwt:4.4.0'

Creating and Verifying JWTs

After upgrading, you may want to create and verify JSON Web Tokens (JWTs). This process can be likened to sending a locked box that only the intended recipient can open with the correct key.

Creating a JWT

To create a JWT, you can use the JWT.create() method. Here’s an example using the RS256 signing algorithm:

try {
    Algorithm algorithm = Algorithm.RSA256(rsaPublicKey, rsaPrivateKey);
    String token = JWT.create()
        .withIssuer("auth0")
        .sign(algorithm);
} catch (JWTCreationException exception) {
    // Invalid Signing configuration
    // Couldn't convert Claims
}

Verifying a JWT

Once you’ve created a JWT, you can verify it with the appropriate algorithm. This step ensures that the box you sent is received intact and unaltered:

String token = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXUyJ9...";
DecodedJWT decodedJWT;
try {
    Algorithm algorithm = Algorithm.RSA256(rsaPublicKey, rsaPrivateKey);
    JWTVerifier verifier = JWT.require(algorithm)
        .withIssuer("auth0")
        .build();
    decodedJWT = verifier.verify(token);
} catch (JWTVerificationException exception) {
    // Invalid signature or claims
}

Troubleshooting Common Issues

If you encounter problems during the upgrade process or while verifying JWTs, consider the following solutions:

• Warning Messages: If you see warnings about unverified previous releases, upgrading to the latest version will resolve these.
• Invalid Signatures: Double-check your public and private keys and ensure they are correct.

For more insights, updates, or to collaborate on AI development projects, stay connected with fxis.ai.

Conclusion

At fxis.ai, we believe that such advancements are crucial for the future of AI, as they enable more comprehensive and effective solutions. Our team is continually exploring new methodologies to push the envelope in artificial intelligence, ensuring that our clients benefit from the latest technological innovations.