Enhancing Security and Privacy of User Information with JWT Tokens and NgRx Integration in Angular Application

I'm facing a security concern with my Angular application. Currently, I store user details like isAdmin, isLoggedIn, email, and more in local storage. However, I'm worried about the risks of unauthorized updates to this data, especially since my app's authorization relies on isAdmin.

The Issue: How can I securely store user information in Angular to prevent unauthorized access and manipulation, taking into account sensitive data like isAdmin?

My Attempt with JWT Token: I've looked into using JWT tokens, but I have doubts about their security. If a token lands on a JWT decoding website, all the data is exposed. Is there a better way to handle JWT tokens in my app for enhanced security?

My Attempt with NgRx: I've experimented with NgRx for state management, but faced an issue where the state doesn't persist after a browser refresh. How can I ensure that crucial user authentication data remains intact even after a page reload?

Any advice or best practices to tackle these concerns and enhance the security of my Angular app would be highly appreciated. Thank you in advance for your help!

angulartypescriptjwtngrxngrx-store

Answer №1

  1. One thing I always mention first is my dislike for ngrx - it's just not worth the complexity if your application is set up properly.

  2. Dealing with security can feel like nothing is ever good enough, no matter how much you try.

When it comes to JWT, decoding it reveals plain-text information, so it's best not to include anything sensitive in there. Details like 'isAdmin' are not critical for public eyes.

The token has a signature to detect any unauthorized modifications, similar to detecting someone using a stolen contactless card under a certain limit.

To mitigate risks, set short lifetimes for tokens to limit potential harm in case of theft or misuse.

An extra layer of security could involve encrypting the JWT twice - once with server's private key and then with UI's public key. However, user access to this information may diminish the effectiveness of double-encryption.

In conclusion, use JWT wisely with brief expiry periods and minimal sensitive data to ensure user safety and privacy.

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