# \#jwt **URL:** https://community.auth0.com/tag/jwt/42.md [Latest](https://community.auth0.com/latest.md) · [Categories](https://community.auth0.com/categories.md) · [Tags](https://community.auth0.com/tags.md) --- ## [Why is My JWT Throwing an “Invalid Signature” Error? (And 4 Ways to Fix It)](https://community.auth0.com/t/why-is-my-jwt-throwing-an-invalid-signature-error-and-4-ways-to-fix-it/203178)
**Author:** [@christina.johnson](https://community.auth0.com/u/christina.johnson)\ **Replies:** 0\ **Last updated:** [September 8, 2026, 7:34pm UTC](https://community.auth0.com/t/why-is-my-jwt-throwing-an-invalid-signature-error-and-4-ways-to-fix-it/203178 "2026-09-08T19:34:08Z")
If your API is rejecting bearer tokens with a frustrating “Invalid Signature” error, your cryptographic verification chain is broken. This quick guide breaks down the four most common culprits, from algorithm mismatches. … --- ## [Will jwt.io support the newly standardized ML-DSA algorithms?](https://community.auth0.com/t/will-jwt-io-support-the-newly-standardized-ml-dsa-algorithms/201685)
**Author:** [@Ariadna0](https://community.auth0.com/u/Ariadna0)\ **Replies:** 1\ **Last updated:** [August 31, 2026, 6:52pm UTC](https://community.auth0.com/t/will-jwt-io-support-the-newly-standardized-ml-dsa-algorithms/201685 "2026-08-31T18:52:26Z")
The algorithms ML-DSA-44, ML-DSA-65, and ML-DSA-87 have recently been standardized in RFC 9964 and registered with IANA. I wonder if the JWT dot io team plans to provide support for those algorithms? Since they are now … --- ## [\[Issue\] Non-specific error message when pasting JWK](https://community.auth0.com/t/issue-non-specific-error-message-when-pasting-jwk/200703)
**Author:** [@hunter.kirkland](https://community.auth0.com/u/hunter.kirkland)\ **Replies:** 2\ **Last updated:** [July 8, 2026, 7:41pm UTC](https://community.auth0.com/t/issue-non-specific-error-message-when-pasting-jwk/200703 "2026-07-08T19:41:46Z")
“Data provided to the operation does not meet requirements.” Using the below key, I get the above error message. Severely unhelpful: too vague. JWT text: {"kty":"RSA","e":"AQAB","use":"sig","kid":"FHIRKey","alg":"RS38… --- ## [Receiving JWE token instead of JWT in Next.js app session](https://community.auth0.com/t/receiving-jwe-token-instead-of-jwt-in-next-js-app-session/167855)
**Author:** [@rsacks](https://community.auth0.com/u/rsacks)\ **Replies:** 6\ **Last updated:** [July 7, 2026, 11:06am UTC](https://community.auth0.com/t/receiving-jwe-token-instead-of-jwt-in-next-js-app-session/167855 "2026-07-07T11:06:13Z")
Hi, We are expecting, a JWT token. We can’t figure out why we are getting a JWE token instead. The only option I can find that would cause this is a plugin that is off. My understanding is JWT should be the default. I a… --- ## [Permissions from event.authorization.permissions become empty in custom JWT generated inside Post Login Action](https://community.auth0.com/t/permissions-from-event-authorization-permissions-become-empty-in-custom-jwt-generated-inside-post-login-action/200229)
**Author:** [@usha78633](https://community.auth0.com/u/usha78633)\ **Replies:** 1\ **Last updated:** [May 29, 2026, 8:42pm UTC](https://community.auth0.com/t/permissions-from-event-authorization-permissions-become-empty-in-custom-jwt-generated-inside-post-login-action/200229 "2026-05-29T20:42:24Z")
I am using a Post Login Action in Auth0 to generate a custom PAT JWT using jsonwebtoken.sign(). RBAC is enabled and “Add Permissions in Access Token” is enabled for my API. The Auth0-issued access token correctly conta… --- ## [No answer after the paste of token](https://community.auth0.com/t/no-answer-after-the-paste-of-token/199924)
**Author:** [@RaissaMatosDev](https://community.auth0.com/u/RaissaMatosDev)\ **Replies:** 1\ **Last updated:** [May 29, 2026, 8:41pm UTC](https://community.auth0.com/t/no-answer-after-the-paste-of-token/199924 "2026-05-29T20:41:18Z")
the program is on error and dont working correctly when i paste my token. It just give me a exception! --- ## [\[Feedback\] Mention that JWT decoding happens fully locally](https://community.auth0.com/t/feedback-mention-that-jwt-decoding-happens-fully-locally/198059)
**Author:** [@nimobeeren](https://community.auth0.com/u/nimobeeren)\ **Replies:** 3\ **Last updated:** [May 27, 2026, 11:03am UTC](https://community.auth0.com/t/feedback-mention-that-jwt-decoding-happens-fully-locally/198059 "2026-05-27T11:03:48Z")
I noticed today that the design of the JWT decoder/encoder on jwt.io has changed. There used to be a message saying that JWT decoding happens fully locally; the token is never sent across the wire. In the new version, … --- ## [Expiration DateTime for Machine to Machine Applications (Client Credentials flow)](https://community.auth0.com/t/expiration-datetime-for-machine-to-machine-applications-client-credentials-flow/198664)
**Author:** [@aburck](https://community.auth0.com/u/aburck)\ **Replies:** 1\ **Last updated:** [April 30, 2026, 6:29pm UTC](https://community.auth0.com/t/expiration-datetime-for-machine-to-machine-applications-client-credentials-flow/198664 "2026-04-30T18:29:40Z")
Feature: Machine to Machine Application Expiration Use-case: We build and sell APIs. To grant customers access to our APIs, we create Machine to Machine (M2M) Applications for each customer and provide them with their C… --- ## [Token and refresh token sought](https://community.auth0.com/t/token-and-refresh-token-sought/199297)
**Author:** [@jefijefin8](https://community.auth0.com/u/jefijefin8)\ **Replies:** 1\ **Last updated:** [April 30, 2026, 6:22pm UTC](https://community.auth0.com/t/token-and-refresh-token-sought/199297 "2026-04-30T18:22:13Z")
my understanding about token is jwt is only return accesstoken that doesnot contain username ,email such without password ,but refresh token is genarated by jwt or backend my understanding is it is a random string ge… --- ## [Replacement of \`lua-resty-jwt\` for https://www.jwt.io/libraries](https://community.auth0.com/t/replacement-of-lua-resty-jwt-for-https-www-jwt-io-libraries/197761)
**Author:** [@cdbattags](https://community.auth0.com/u/cdbattags)\ **Replies:** 2\ **Last updated:** [March 2, 2026, 3:04pm UTC](https://community.auth0.com/t/replacement-of-lua-resty-jwt-for-https-www-jwt-io-libraries/197761 "2026-03-02T15:04:32Z")
Hey folks, I’m the maintainer of lua-resty-jwt, an OpenResty/Lua JWT library. The current listing on jwt.io/libraries points to SkyLothar/lua-resty-jwt, which has been abandoned since May 2020 (70+ open issues, no activ… --- ## [Why was the option to modify JWT's removed on jwt.io](https://community.auth0.com/t/why-was-the-option-to-modify-jwts-removed-on-jwt-io/194252)
**Author:** [@andreas-lundgren-tel](https://community.auth0.com/u/andreas-lundgren-tel)\ **Replies:** 1\ **Last updated:** [November 28, 2025, 7:01pm UTC](https://community.auth0.com/t/why-was-the-option-to-modify-jwts-removed-on-jwt-io/194252 "2025-11-28T19:01:18Z")
Hi! Wya was the option to modify and re-sign JWT’s removed from jwt \[dot\] io ? Is there a plan to add it back? It was quite a useful function for testing, saved you some manual work during development. Anyone know wher… --- ## [\[Feedback\] JWT.io / Encoding Format / Base64](https://community.auth0.com/t/feedback-jwt-io-encoding-format-base64/193575)
**Author:** [@blop](https://community.auth0.com/u/blop)\ **Replies:** 1\ **Last updated:** [October 31, 2025, 8:17pm UTC](https://community.auth0.com/t/feedback-jwt-io-encoding-format-base64/193575 "2025-10-31T20:17:21Z")
Hello ! Could you consider adding another option in the “Encoding Format” of the secret key? Currently there is “UTF-8“ and “base64url“, could be nice and easy to add the “base64” encoding as well (which is slightly di… --- ## [Will JWT support PQC (Post quantum cryptography) replace RSA and ECDSA as a new standard](https://community.auth0.com/t/will-jwt-support-pqc-post-quantum-cryptography-replace-rsa-and-ecdsa-as-a-new-standard/192970)
**Author:** [@teerakiat88](https://community.auth0.com/u/teerakiat88)\ **Replies:** 1\ **Last updated:** [October 31, 2025, 7:54pm UTC](https://community.auth0.com/t/will-jwt-support-pqc-post-quantum-cryptography-replace-rsa-and-ecdsa-as-a-new-standard/192970 "2025-10-31T19:54:34Z")
NIST already annouce the replacement of RSA and ECDSA in the future of PQC , will JWT support new ML-DSA algorithm in the standard spec. just want to know as this will impact to the whole industry to prevent cyber securi… --- ## [Demystifying JOSE, the JWT Family: JWS, JWE, JWA, and JWK Explained](https://community.auth0.com/t/demystifying-jose-the-jwt-family-jws-jwe-jwa-and-jwk-explained/192885)
**Author:** [@andrea.chiarelli](https://community.auth0.com/u/andrea.chiarelli)\ **Replies:** 1\ **Last updated:** [October 7, 2025, 1:08pm UTC](https://community.auth0.com/t/demystifying-jose-the-jwt-family-jws-jwe-jwa-and-jwk-explained/192885 "2025-10-07T13:08:20Z")
Confused by the various acronyms surrounding JWT? Want to know what JWS and JWE are and how they relate to JWT? This blog post introduces the members of the JOSE family and tries to clarify things for you! :nerd\_face: … --- ## [Protect Your Access Tokens with DPoP (Demonstrating Proof of Possession)](https://community.auth0.com/t/protect-your-access-tokens-with-dpop-demonstrating-proof-of-possession/191057)
**Author:** [@andrea.chiarelli](https://community.auth0.com/u/andrea.chiarelli)\ **Replies:** 1\ **Last updated:** [August 25, 2025, 7:35am UTC](https://community.auth0.com/t/protect-your-access-tokens-with-dpop-demonstrating-proof-of-possession/191057 "2025-08-25T07:35:55Z")
Did you know you can bind an access token to the client application, improving its security? DPoP allows you to do this. Read more here. --- ## [Five Myths About JWTs Debunked](https://community.auth0.com/t/five-myths-about-jwts-debunked/190296)
**Author:** [@andrea.chiarelli](https://community.auth0.com/u/andrea.chiarelli)\ **Replies:** 1\ **Last updated:** [August 7, 2025, 10:13am UTC](https://community.auth0.com/t/five-myths-about-jwts-debunked/190296 "2025-08-07T10:13:54Z")
There are many myths surrounding JSON Web Tokens. This article attempts to debunk five of them. Check them out! --- ## [\[Issue\] Unable to select JWK under JWT SIGNATURE VALIDATION](https://community.auth0.com/t/issue-unable-to-select-jwk-under-jwt-signature-validation/189978)
**Author:** [@Dahventura](https://community.auth0.com/u/Dahventura)\ **Replies:** 1\ **Last updated:** [July 31, 2025, 7:43pm UTC](https://community.auth0.com/t/issue-unable-to-select-jwk-under-jwt-signature-validation/189978 "2025-07-31T19:43:06Z")
When attempting to validate a JWT, I receive the following error when selecting the JWK public key format from the dropdown menu. Uncaught TypeError: can't access property "some", e.options is undefined --- ## [\[Issue\] Uncaught TypeError: Cannot read properties of undefined (reading 'some')](https://community.auth0.com/t/issue-uncaught-typeerror-cannot-read-properties-of-undefined-reading-some/189934)
**Author:** [@javier-mino\_globant](https://community.auth0.com/u/javier-mino_globant)\ **Replies:** 1\ **Last updated:** [July 30, 2025, 6:20pm UTC](https://community.auth0.com/t/issue-uncaught-typeerror-cannot-read-properties-of-undefined-reading-some/189934 "2025-07-30T18:20:50Z")
Generate Example not working Steps: Click on “Generate example” Click on “Select a signing algorithm” Select any algorithm Expected: An example is created with the selected algorithm Actual: “Select a signing al… --- ## [\[Issue\] debugger is not working](https://community.auth0.com/t/issue-debugger-is-not-working/188652)
**Author:** [@venefax](https://community.auth0.com/u/venefax)\ **Replies:** 1\ **Last updated:** [July 31, 2025, 7:48pm UTC](https://community.auth0.com/t/issue-debugger-is-not-working/188652 "2025-07-31T19:48:26Z")
I past this valid Stir Shaken Token and it says it’s incomplete, but it’s not. eyJhbGciOiJFUzI1NiIsInBwdCI6InNoYWtlbiIsInR5cCI6InBhc3Nwb3J0IiwieDV1IjoiaHR0cHM6Ly94Zm9uZS51cy9qYXBjem9yLzUifQ.eyJhdHRlc3QiOiJCIiwiZG VzdCI… --- ## [\[Feedback\] The separation of the Decoder and Encoder should be reverted](https://community.auth0.com/t/feedback-the-separation-of-the-decoder-and-encoder-should-be-reverted/187040)
**Author:** [@f.flora](https://community.auth0.com/u/f.flora)\ **Replies:** 1\ **Last updated:** [May 29, 2025, 1:17pm UTC](https://community.auth0.com/t/feedback-the-separation-of-the-decoder-and-encoder-should-be-reverted/187040 "2025-05-29T13:17:37Z")
Hello, As title says, I think the idea of separating the encoder and decoder made using the application a lot more of a hassle. Instead of making changes left and right, now an additional step is required (and as a side… --- ## [Adding audience to token](https://community.auth0.com/t/adding-audience-to-token/84805)
**Author:** [@psr11140](https://community.auth0.com/u/psr11140)\ **Replies:** 4\ **Last updated:** [January 29, 2025, 10:53pm UTC](https://community.auth0.com/t/adding-audience-to-token/84805 "2025-01-29T22:53:45Z")
Hi, i am creating a code in which iam using auth0 for authentification (so i have my api and a regular application), and the thing is i want to use the management api in my api but the audience i have when a user connec… --- ## [Restrict access to React app with RBAC Scopes](https://community.auth0.com/t/restrict-access-to-react-app-with-rbac-scopes/90801)
**Author:** [@astaubin](https://community.auth0.com/u/astaubin)\ **Replies:** 1\ **Last updated:** [January 28, 2025, 7:50pm UTC](https://community.auth0.com/t/restrict-access-to-react-app-with-rbac-scopes/90801 "2025-01-28T19:50:37Z")
We would like to restrict access to one of our React Applications based on a set of permissions set on a Role in Auth0. We are looking at using RBAC to achieve this and have the permissions working with the correct Scope… --- ## [Is my application a SPA or Regular Web Application? (and the consequences)?](https://community.auth0.com/t/is-my-application-a-spa-or-regular-web-application-and-the-consequences/86088)
**Author:** [@benjamin203](https://community.auth0.com/u/benjamin203)\ **Replies:** 1\ **Last updated:** [December 16, 2024, 11:35pm UTC](https://community.auth0.com/t/is-my-application-a-spa-or-regular-web-application-and-the-consequences/86088 "2024-12-16T23:35:37Z")
Hello, this is my first post. I have read about Application Types and how it’s not recommended to put Management API Tokens on the front end of for example an SPA. I think my application is a Singe Page Application (SP… --- ## [Logout is not happening on Browser/Tab close](https://community.auth0.com/t/logout-is-not-happening-on-browser-tab-close/93862)
**Author:** [@vjai29](https://community.auth0.com/u/vjai29)\ **Replies:** 1\ **Last updated:** [December 11, 2024, 9:36pm UTC](https://community.auth0.com/t/logout-is-not-happening-on-browser-tab-close/93862 "2024-12-11T21:36:12Z")
Hi fellas, we are facing an issue when we try to logout of single page react application , below is the code used to call logout function. let me know if you need further info. const { logout } = useAuth0(); useEffect… --- ## [Get access to JWT secret](https://community.auth0.com/t/get-access-to-jwt-secret/89839)
**Author:** [@hhopkins614](https://community.auth0.com/u/hhopkins614)\ **Replies:** 2\ **Last updated:** [December 6, 2024, 11:55pm UTC](https://community.auth0.com/t/get-access-to-jwt-secret/89839 "2024-12-06T23:55:25Z")
Hello – I’m wondering if it is possible to see the JWT secret that is being used for an app. I am trying to use Supabase with Auth0 on a iOS Swift application. If I understand correctly (I’m very new to this), I could si… --- ## [Only sign up user if own backend allows it and send (sub, email, username)](https://community.auth0.com/t/only-sign-up-user-if-own-backend-allows-it-and-send-sub-email-username/85960)
**Author:** [@amg1](https://community.auth0.com/u/amg1)\ **Replies:** 1\ **Last updated:** [November 21, 2024, 10:52pm UTC](https://community.auth0.com/t/only-sign-up-user-if-own-backend-allows-it-and-send-sub-email-username/85960 "2024-11-21T22:52:53Z")
Hey I got some questions regarding my usecase: I want to gather data (auth0\_sub, email, username) and send it to my backend to create a user with said fields. I then send back the associated internalId from my backend a… --- ## [JWT decode issue in Spring Boot](https://community.auth0.com/t/jwt-decode-issue-in-spring-boot/89851)
**Author:** [@hantsy](https://community.auth0.com/u/hantsy)\ **Replies:** 2\ **Last updated:** [November 1, 2024, 4:12pm UTC](https://community.auth0.com/t/jwt-decode-issue-in-spring-boot/89851 "2024-11-01T16:12:10Z")
In my spring Boot (2.7.3) application, I used Auth0/Spring Security to protect our backend APIs, but we encountered an exception like this when deploying into our staging environment. 2022-09-01 11:29:33.096 DEBUG 1 ---… --- ## [My PR for my library is there for 9 months. Can I get my library approved? To show on the website](https://community.auth0.com/t/my-pr-for-my-library-is-there-for-9-months-can-i-get-my-library-approved-to-show-on-the-website/147636)
**Author:** [@beatt83](https://community.auth0.com/u/beatt83)\ **Replies:** 2\ **Last updated:** [October 16, 2024, 9:04am UTC](https://community.auth0.com/t/my-pr-for-my-library-is-there-for-9-months-can-i-get-my-library-approved-to-show-on-the-website/147636 "2024-10-16T09:04:27Z")
Hi. I wanted to understand if my library can be approved? My PR is there for a few months since January. It’s 9 months for an approval or even any reply of a PR and merge. I mean im patient but its a little too much wit… --- ## [Is java-jwt compatible with Java21?](https://community.auth0.com/t/is-java-jwt-compatible-with-java21/142144)
**Author:** [@rikkyrice](https://community.auth0.com/u/rikkyrice)\ **Replies:** 3\ **Last updated:** [September 5, 2024, 3:37pm UTC](https://community.auth0.com/t/is-java-jwt-compatible-with-java21/142144 "2024-09-05T15:37:08Z")
Hi everyone, I am using the java-jwt library in my project, which currently runs on Java 8. I am planning to migrate from Java 8 to Java 21 and am investigating compatible versions of each library for Java 21. I found … --- ## [Why does the token change when private key is entered in verify signature?](https://community.auth0.com/t/why-does-the-token-change-when-private-key-is-entered-in-verify-signature/140334)
**Author:** [@vivaladata](https://community.auth0.com/u/vivaladata)\ **Replies:** 4\ **Last updated:** [August 6, 2024, 10:24pm UTC](https://community.auth0.com/t/why-does-the-token-change-when-private-key-is-entered-in-verify-signature/140334 "2024-08-06T22:24:38Z")
Hi. I’m new to JWT and have been generating them with command line after receiving a key pair from a company whose api I need to integrate with. Their requirements for their token signature are specified as RSASHA256( b… [Next page](https://community.auth0.com/tag/jwt/42.md?match_all_tags=true&page=1&tags%5B%5D=jwt)